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Blossom Blight Resistance in Peach: Phenotyping and Antioxidants Content in Petals
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Dini, Maximiliano

; Raseira, Maria do Carmo Bassols

; Marchi, Priscila Monalisa

; Franzon, Rodrigo Cezar

; Ueno, Bernardo

; Vizzotto, Marcia

Brazilian Archives of Biology and Technology

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2023, Volume 66 elocation e23220730

Abstract: En | Text: En | PDF: En

Abstract Brown rot and blossom blight caused by fungi of the genus Monilinia are the most important peach diseases. The increased concern with the environment and the health of workers and consumers, as well as the emergence of fungus isolates resistant to the main fungicide molecules favor control strategies such as genetic resistance. The objective of this study was to adjust a phenotyping protocol for evaluation of resistance/susceptibility to blossom blight in peach, as well as to quantify the antioxidant compounds present in the petals of these flowers and their correlation with the disease incidence and severity. The experiment was arranged in a randomized complete block split-split plot design, the plot being four concentrations of Monilinia fructicola conidia; the subplot two phenological flower stage; and the sub-subplot four peach genotypes. The quantification of antioxidant compounds and their correlation with susceptibility to blossom blight was performed in the four genotypes analyzed. Phenotyping was more efficient when concentrations between 400 and 4,000 conidia mL-1 were used, regardless of phenological flower stage. The phenolic compounds, anthocyanins and antioxidant activity are positively correlated among them, and negatively correlated with the blossom blight incidence and severity. In order to estimate the blossom blight susceptibility, it is recommended to use flowers at the pink or bloom stage, inoculum equivalent to 20-200 conidia per flower, and perform the evaluation at 96 hours after inoculation. This study suggests that more intense pink flowers have a higher content of antioxidant compounds and less blossom blight susceptibility.

https://doi.org/10.1590/1678-4324-2023220730

‘BRS F50’ (Cecilia): A multi-purpose potato cultivar with resistance to foliar disease
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Pereira, Arione S

; Silva, Giovani O da

; Carvalho, Agnaldo DF de

; Castro, Caroline M

; Emygdio, Beatriz M

; Azevedo, Fernanda Q

; Bortoletto, Antonio Cesar

; Hirano, Elcio

; Gomes, Cesar B

; Lourenço Junior, Valdir

; Eicholz, Eberson D

; Ragassi, Carlos Francisco

; Coradin, Juliana H

; Dutra, Leonardo F

; Lopes, Carlos Alberto

; Reisser Junior, Carlos

; Lima, Natércia LP

; Pinheiro, Jadir B

; Lima, Mirtes F

; Ferri, Núbia ML

; Krolow, Ana Cristina R

; Maldonade, Iriani R

; Jorge, Rogério O

; Pilon, Lucimeire

; Ueno, Bernardo

; Feldberg, Nelson P

; Vizzotto, Márcia

Horticultura Brasileira

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2023, Volume 41 elocation e2667

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT ‘BRS F50’ (Cecilia) is a yellow skin potato cultivar for the fresh market, with good tuber appearance and versatile culinary use. The tuber has oval shape, shallow eyes, and light yellow flesh. It has a relatively high dry matter and medium-low glucose content, giving possibility even to use for processing into shoestring fries. The vegetative cycle and dormancy are medium. The maturity and tuber dormancy are medium. ‘BRS F50’ (Cecilia) shows a very low external and internal tuber disorder incidence, except growing cracks under varying soil humidity. It is moderately resistant to late and early blight, which make it also suitable for organic production. ‘BRS F50’ (Cecilia) was released by Embrapa in 2022, and is a product of its potato breeding program, developed by Embrapa Clima Temperado, in Pelotas-RS and Canoinhas-SC, and Embrapa Hortaliças, in Brasília-DF, Brazil.

RESUMO ‘BRS F50’ (Cecilia) é uma cultivar de batata de película amarela para o mercado in natura, com boa aparência de tubérculo e versátil uso culinário. O tubérculo tem formato oval, olhos rasos e polpa amarela clara. Apresenta um teor de matéria seca relativamente alto e teor de glicose médio-baixo, dando-lhe a possibilidade de uso até mesmo para processamento de batata palha. O ciclo vegetativo e período de dormência são médios. A maturidade e a dormência dos tubérculos são médias. ‘BRS F50’ (Cecilia) apresenta incidência baixa de desordens fisiológicas externas e internas nos tubérculos, exceto rachaduras de crescimento sob umidade variável do solo. É moderadamente resistente à requeima e à pinta preta, o que a torna também adequada à produção orgânica. ‘BRS F50’ (Cecilia) foi lançada pela Embrapa em 2022, e é produto de seu programa de melhoramento de batata, desenvolvido pela Embrapa Clima Temperado, em Pelotas-RS e Canoinhas-SC, e Embrapa Hortaliças, em Brasília-DF, Brasil.

https://doi.org/10.1590/s0102-0536-2023-e2667

‘BRS F183’ (Potira): A dual purpose potato cultivar, with high yield potential and excellent French fry quality
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Pereira, Arione S

; Silva, Giovani Olegario da

; Castro, Caroline M

; Carvalho, Agnaldo DF de

; Azevedo, Fernanda Q

; Hirano, Elcio

; Brito, Giovani G

; Bortoletto, Antonio Cesar

; Emygdio, Beatriz M

; Reisser Junior, Carlos

; Lopes, Carlos Alberto

; Ragassi, Carlos Francisco

; Dutra, Leonardo F

; Coradin, Juliana H

; Lima, Natércia LP

; Gomes, Cesar B

; Pinheiro, Jadir B

; Lourenço Junior, Valdir

; Lima, Mirtes F

; Maldonade, Iriani R

; Jorge, Rogério O

; Haerter, Janni Andre

; Ueno, Bernardo

; Krolow, Ana Cristina R

; Vizzotto, Márcia

Horticultura Brasileira

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jan 2022, Volume 40 N. 1 Pages 119 - 124

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO ‘BRS F183’ (Potira) é uma cultivar de batata de maturidade tardia e película vermelha, adequada ao processamento de palitos pré-fritos, devido ao alto teor de matéria seca dos tubérculos de formato ovalado longo, tamanho grande, polpa amarela clara e coloração clara de fritura. Também é indicada para o mercado fresco devido a seus tubérculos atrativos de cor vermelha intensa, película lisa e olhos rasos. Em seis ensaios, ‘BRS F183’ apresentou rendimentos de tubérculos que não diferiram de ‘Asterix’. O rendimento comercial foi relativamente alto, chegando a 98,5% no ecossistema tropical. Tubérculos maiores da ‘BRS F183’ que ‘Asterix’ foram também observados na safra de outono do ecossistema subtropical. Na maioria dos ensaios, o teor de matéria seca foi superior ao da ‘Asterix’, variando de 20,5 a 23,0%. Baixa incidência de desordens dos tuberculos foi observada na ‘BRS F183’, com o crescimento secundário menor que ‘Asterix’. ‘BRS F183’ apresentou dormência média dos tubérculos. Teor de glicose dos tubérculos adequado para processamento de palitos pré-fritos (≤1,2 mg g-1 de massa fresca) foi apresentado pela ‘BRS F183’, após a colheita e armazenamento a 7,5°C, 8,9°C e 20°C por até 180 dias, enquanto de ‘Asterix’ foi adequado até 120 dias após armazenamento a 8,9°C. ‘BRS F183’ é moderadamente resistente à pinta preta e moderadamente suscetível à requeima. É suscetível a PVY, PLRV e nematóide das galhas. Observações de campo indicam que a resistência/suscetibilidade à podridão mole, crosta preta e murcha bacteriana da ‘BRS F183’ não é diferente das principais cultivares cultivadas no país. No entanto, maior suscetibilidade à sarna comum foi observada em alguns testes de validação. ‘BRS F183’ foi lançada em 2020 pela Embrapa, como produto do programa de melhoramento desenvolvido pela Embrapa Clima Temperado e Embrapa Hortaliças.

ABSTRACT ‘BRS F183’ (Potira) is a late-maturing and red skin potato cultivar, suitable for French fry processing, due to tuber high dry matter content of long oval shape, large size, light yellow flesh, and light fry color. It is also suitable for the fresh market due to its attractive tubers of intense red color, smooth skin and shallow eyes. In six trials, ‘BRS F183’ showed average tuber yields that did not differ from ‘Asterix’. The marketable yield was relatively high, reaching 98.5% in the tropical ecosystem. Larger tubers of ‘BRS F183’ than ‘Asterix’ were also observed in the autumn crop of the subtropical ecosystem. In most of the trials, the dry matter content was higher than that of ‘Asterix’, varying from 20.5 to 23.0%. A very low incidence of tuber disorders was observed in ‘BRS F183’, with the secondary growth lower than ‘Asterix’. ‘BRS F183’ presented medium tuber dormancy. Tuber glucose content suitable for French fry processing (≤1.2 mg g-1 of fresh mass) was shown by ‘BRS F183’ after harvest and storage at 7.5°C, 8.9°C and 20°C for up to 180 days, while ‘Asterix’ was suitable up to 120 days after storage at 8.9ºC. ‘BRS F183’ is moderately resistant to early blight and moderately susceptible to late blight. It is susceptible to PVY, PLRV, and root-knot nematode. Field observations indicate that resistance/susceptibility to soft rot, black scurf, and bacterial wilt of ‘BRS F183’ is not different from the main cultivars grown in the country. However, higher susceptibility to common scab was shown in some validation tests. ‘BRS F183’ was released in 2020 by Embrapa, as a product of the breeding program developed by Embrapa Temperate Agriculture and Embrapa Vegetables.

https://doi.org/10.1590/s0102-0536-20220116

Pumpkin landraces from southern Brazil as functional foods
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PRIORI, Daniela

; VALDUGA, Eduardo

; VIZZOTTO, Marcia

; VALGAS, Ricardo Alexandre

; BARBIERI, Rosa Lía

Food Science and Technology

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2022, Volume 42 elocation e92821

Abstract: En | Text: En | PDF: En

Abstract Squash is a food that meets the requirements of a healthy diet and is highly appreciated by consumers for its mild flavour and high nutritional value. In southern Brazil, many farmers grow several pumpkin landraces that are widely used in food. The consumption of its fruits and derivatives benefits human health due to the bioactive compounds, minerals, and antioxidants in the fruit pulp, making pumpkin a functional food. The objective of this study was to characterize the bioactive compounds, antioxidant activity, and minerals in the pulp of fruits of pumpkin landraces (Cucurbita maxima) from southern Brazil. Phenolic compounds, carotenoids, antioxidant activity, and minerals were evaluated in 10 accessions of pumpkin landraces from the Cucurbitaceae Genebank of Embrapa Temperate Agriculture (Pelotas, RS, Brazil). In mature fruits, the seeds and peels were discarded, and opposite longitudinal slices of pulp were manually prepared for analysis. All analyses were performed in triplicate. The data obtained showed genetic variability in total phenolic compounds, carotenoids, antioxidant activity, and minerals. Accessions C49, C307, and C216 had high levels of total phenolic compounds and carotenoids and high antioxidant activity. Of these accessions, accession C49 had the highest antioxidant capacity (504.1 μg·g-1). C216 and C178 were high in copper and iron, and the latter was highest in potassium, calcium, and phosphorus. Thus, accessions C216 and C178 have great potential for exploitation by genetic improvement programs for the development of biofortified cultivars in efforts to promote consumer health.

https://doi.org/10.1590/fst.92821

Can CBCT change the level of confidence of oral maxillofacial surgeons in mandibular third molar management?
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WANZELER, Ana Márcia Viana

; SILVEIRA, Heraldo Luis Dias da

; BULIGON, Rodrigo Pagliarini

; CORSETTI, Adriana

; VIEIRA, Henrique Timm

; ARÚS, Nádia Assein

; VIZZOTTO, Mariana Boessio

Brazilian Oral Research

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2022, Volume 36 elocation e078

Abstract: En | Text: En | PDF: En

Abstract This study analyzed the impact of CBCT on the level of confidence in diagnostic and treatment thinking in mandibular lower molar (M3M) clinical management. Thirty cases for which panoramic radiographs and CBTC images were available were selected and classified according to radiologic signs indicating the proximity of the M3M to the mandibular canal (interruption of the radiopaque borders of the canal of the mandibular canal wall, darkening of the roots, and diversion or narrowing of the canal, n = 10 for each classification). Twelve oral and maxillofacial surgeons (OMS) contributed to this study by answering two questionnaires. The first questionnaire contained a clinical description of the case and a panoramic radiograph. After 30 days, a second questionnaire with the same clinical illustrations and tomographic multiplanar reconstruction images was administered. Both questionnaires asked specialists to rate diagnostic confidence, the surgical complexity, chosen treatment, and surgical confidence. In approximately 40% of answers, CBCT images had a positive impact on ratings of diagnostic confidence and treatment thinking confidence, and in 24.4%, they increased the surgical complexity score. There was no change in the treatment plan following the use of CBCT, but the CBCT examination was a determining factor for diagnosis and treatment planning in 72.8% of the answers CBCT improved the confidence level in diagnostic and treatment thinking of the M3M management while also increasing the perceived level of surgical complexity. The findings of this study support the need to consider using CBCT in diagnosis and treatment planning for M3Ms with radiographic signs such as darkening of the roots, interruption of the radiopaque borders of the mandibular canal, or deviation of the mandibular canal and narrowing of the roots.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0078

Genetic variability of bioactive compounds in Capsicum chinense
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CRUZ, Jéssica Gonsalez

; SILVEIRA, Tatieli

; RICHTER, Vanessa

; WAGNER, Júlia Goetten

; NEITZKE, Raquel Silviana

; BARBIERI, Rosa Lía

; VIZZOTTO, Márcia

Food Science and Technology

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2022, Volume 42 elocation e123721

Abstract: En | Text: En | PDF: En

Abstract Capsicum is one of the most important genera of the Solanaceae family. Among the domesticated species, C. chinense is considered the most Brazilian pepper, besides being known for having high levels of phytochemical compounds and, consequently, high antioxidant capacity. This work was intended to perform the chemical characterization of bioactive compounds present in C. chinense accessions from the Capsicum Genebank of Embrapa Temperate Agriculture. Fruits from 19 accessions were evaluated regarding the concentration of total phenolic compounds, total carotenoids, total anthocyanins and antioxidant activity. It was possible to observe a high genetic variability among the evaluated accessions. The highest concentration of phenolic compounds was found in accession number P391; the highest concentrations of total carotenoids were found in accession numbers P240; P348 and P399; the highest concentration of total anthocyanins was in accession number P240; and the highest antioxidant activity was found in accession numbers P386, P391, P366, P350, P346 and P399. There is a correlation between antioxidant activity and the content of phenolic compounds, as well as between antioxidant activity and carotenoids in Capsicum chinense. The genetic variability noticed can be exploited in breeding programs for the selection of accessions with desirable characters.

https://doi.org/10.1590/fst.123721

Accessing the nutritional variability of Butia odorata: a food with identity
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WAGNER, Julia Goetten

; CRUZ, Jéssica Gonsalez

; SILVEIRA, Tatieli

; FERRI, Nubia Marilin Lettnin

; RICHTER, Vanessa Baptista

; LIMA, Francielle Müller

; FIGUEIRA, Kathleen Uszacki

; MISTURA, Claudete Clarice

; VIZZOTTO, Márcia

; BARBIERI, Rosa Lía

Food Science and Technology

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2022, Volume 42 elocation e54822

Abstract: En | Text: En | PDF: En

Abstract Butia odorata (Arecaceae) is a palm species in southern Brazil and eastern Uruguay, which produces tasty fruits consumed by humans and animals. Despite the ecological and sociocultural relevance of the species, B. odorata is endangered by extinction. This study aimed to characterize physical aspects, chromatic parameters, chemical, and centesimal composition and determine the bioactive compounds and antioxidant activity of fruits of B. odorata. Fifteen accessions of B. odorata from Pelotas and Capão do Leão (RS-Brazil) were evaluated for bunches weight, fruit yield, fruit diameter and height, total soluble solids (TSS), pH, total titratable acidity (TTA), TSS/TST ratio, color parameters, total phenolic compounds, total carotenoids, antioxidant activity, percentage of moisture, dry matter, vitamin C, crude fiber, fat, ash, protein and pulp yield. There was genetic variability among the analyzed accessions for several parameters. Some of them influence consumer acceptance, such as coloration and sugar content, which highlights the possibility of selection for genetic improvement. The fruits showed a rich composition in fibers, vitamin C, total carotenoids, and total phenolic content, which contribute to health maintenance. With the growing demand for functional foods, Butia fruits represent a potential product for nutritional enrichment in diets.

https://doi.org/10.1590/fst.54822

Araçá (Psidium cattleianum Sabine): bioactive compounds, antioxidant activity and pancreatic lipase inhibition
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Pereira, Elisa dos Santos

; Vinholes, Juliana Rocha

; Camargo, Taiane Mota

; Raphaelli, Chirle de Oliveira

; Ferri, Núbia Marilin Lettnin

; Nora, Leonardo

; Vizzotto, Márcia

Ciência Rural

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2021, Volume 51 N. 11 elocation e20200778

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A fruta araçá tem sido destacada por suas diferentes atividades biológicas como antioxidante, antiproliferativa e antimicrobiana, além de inibidores de enzimas digestivas. A enzima digestiva lipase tem papel fundamental no metabolismo lipídico, e sua inibição tem sido estudada como alvo para o tratamento da obesidade. Este estudo teve como objetivo quantificar os compostos bioativos presentes em diferentes partes do fruto do araçá e avaliar sua atividade antioxidante e propriedades de inibição da lipase. Três amostras foram analisadas quanto a antocianinas totais, compostos fenólicos totais, atividade antioxidante e inibição da lipase pancreática. Antocianinas foram encontradas apenas na polpa-casca da amostra de araçá vermelho. A concentração de compostos fenólicos foi maior na polpa-casca do que nas sementes para todas as amostras. A atividade antioxidante seguiu a mesma tendência. Os compostos fenólicos totais, a atividade antioxidante e a inibição da lipase apresentaram uma correlação positiva. A atividade de inibição da lipase foi ligeiramente superior para a polpa-casca em comparação com as sementes. No geral, os resultados revelaram que os extratos da fruta do araçá podem ser benéficos para o tratamento da obesidade.

ABSTRACT: “Araçá” has been reported with different biological activities such as antioxidant, antiproliferative and antimicrobial as well as inhibitors of digestive enzymes. The digestive pancreatic lipase enzyme plays a fundamental role in lipid metabolism, and its inhibition has been studied as a target for obesity treatment. This study quantified the bioactive compounds present in different parts of “araçá” fruit and evaluated their antioxidant activity and lipase inhibition properties. Three samples were analyzed for total anthocyanins, total phenolic content, antioxidant activity and pancreatic lipase inhibition. Anthocyanins were reported only in pulp-peel of red “araçá” sample. Phenolic compounds concentration was higher in pulp-peel than in seeds for all samples. The antioxidant activity followed the same trend. A positive correlation was observed between total phenolic content and both antioxidant activity and lipase inhibition. Lipase inhibition activity was higher for pulp-peel compared to the seeds. Overall, the results showed that “araçá” fruit extracts could be beneficial for the treatment of obesity.

https://doi.org/10.1590/0103-8478cr20200778 153 downloads

Bioactive compounds, processing quality and yield of colored flesh potato clones
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Cima, Francieli Fatima

; Pereira, Elisa dos S

; Schiavon, Marina V

; Munhoz, Priscila C

; Lenz, Emerson A

; Wolter, Daiana D

; Silva, Tuane A da

; Azevedo, Fernanda Q

; Vizzotto, Márcia

; Pereira, Arione da S

Horticultura Brasileira

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apr 2020, Volume 38 N. 2 Pages 139 - 145

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Batatas com polpa colorida contêm elevadas concentrações de fitoquímicos, tais como ácidos fenólicos, antocianinas e carotenoides, que apresentam efeitos terapêuticos e promotores da saúde humana. O objetivo deste estudo foi avaliar a concentração de compostos bioativos, e caracteres de qualidade industrial e de rendimento de tubérculos de batata de polpa colorida. Quatro experimentos foram realizados em Pelotas-RS. Em 2012 e 2013, avaliaram-se os caracteres de rendimento de tubérculos, e em 2014 e 2015, avaliaram-se os compostos bioativos (compostos fenólicos, antocianinas e carotenoides), atividade antioxidante e caracteres de qualidade industrial (teor de glicose, porcentagem de massa seca e cor de fritura). Os clones C2715-01-09, C2721-22-09 e C2743-01-09, de polpa roxa intensa, apresentaram elevadas concentrações de compostos bioativos e alta capacidade antioxidante, e razoáveis características de processamento e potencial produtivo. O clone C2743-09-09, de polpa branca entremeada com roxo, foi o mais produtivo e mostrou bons atributos de processamento, porém teores inferiores de compostos bioativos e moderada atividade antioxidante quando comparado aos clones completamente roxos.

ABSTRACT Colored flesh potatoes contain high concentrations of phytochemicals, such as phenolic acids, anthocyanins and carotenoids, which have therapeutic effects and promoters of human health. The objective of the study was to evaluate the concentration of bioactive compounds and industrial quality and yield traits of potato tubers. Four experiments were carried out in Pelotas-RS. In 2012 and 2013, tuber yield traits were evaluated and in 2014 and 2015, the bioactive compounds (phenolic compounds, anthocyanins and carotenoids), antioxidant activity and industrial quality traits [glucose content, dry matter (%) and frying color] were assessed. Clones C2715-01-09, C2721-22-09 and C2743-01-09, having fully pigmented purple flesh presented high concentrations of bioactive compounds and high antioxidant capacity and reasonable processing quality traits and yield potential. Clone C2743-09-09 with white flesh interspersed with purple was the most productive and had good processing attributes, but showed lower levels of bioactive compounds and moderate antioxidant activity when compared to completely purple clones.

https://doi.org/10.1590/s0102-053620200205 861 downloads

10.

Adubação potássica na qualidade de pêssegos
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Barreto, Caroline Farias

; Navroski, Renan

; Cantillano, Rufino Fernando Flores

; Vizzotto, Marcia

; Nava, Gilberto

Revista de Ciências Agrárias

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mar 2020, Volume 43 N. 1 Pages 145 - 158

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Para frutíferas de caroço o potássio (K) está relacionado com a qualidade dos frutos. O objetivo deste trabalho foi avaliar diferentes doses de adubação potássica nas características físico-químicas e compostos bioativos de frutos de pessegueiros ‘Esmeralda’. O experimento foi desenvolvido em pomar comercial no município de Morro Redondo, Rio Grande do Sul, Brasil, entre as safras de 2014 e 2017. As doses de potássio aplicadas foram 0, 40, 80, 120 e 160 kg K2O ha-1. Avaliou-se: coloração da polpa, firmeza da epiderme e da polpa, sólidos solúveis (SS), pH, acidez titulável (AT), relação SS/AT, compostos fenólicos totais, carotenóides totais e atividade antioxidante. O aumento das doses de K reduziu o teor de compostos fenólicos e a atividade antioxidante nos pêssegos nessa mesma safra. Os parâmetros de qualidade dos frutos, como a acidez titulável e firmeza da polpa não apresentaram alterações com a adubação potássica dos pessegueiros nas quatro safras avaliadas. Entretanto, os sólidos solúveis, relação SS/AT, croma, °Hue, firmeza da epiderme e compostos bioativos são influenciados pelas doses de K, mas dependem também das condições climáticas e da safra em análise.

Abstract For stone fruit the potassium (K) is related to fruit quality. The objective of this work was to evaluate different amount of potassium fertilization in the physical-chemical characteristics and bioactive compounds of ‘Esmeralda’ peach fruits. The experiment was carried out in a commercial orchard in the municipality of Morro Redondo, Rio Grande do Sul, Brazil, between the seasons of 2014 and 2017. The potassium doses applied were 0, 40, 80, 120 and 160 Kg K2O ha-1. It was evaluated: pulp color, peel and pulp firmness, soluble solids, pH, titratable acidity, SS/AT, total phenolic compounds, total carotenoids and antioxidant activity. The increase in K doses reduced the phenolic compounds content and the antioxidant activity in the peaches in the same harvest Fruit quality parameters, such as titratable acidity and firmness of the pulp did not show changes with the potassium fertilization of the peach trees in the four harvests cycles evaluated. However, soluble solids, SS/AT, chroma, °Hue, peel firmness and bioactive compounds are influenced by the amount of K, but also depend on the climatic conditions and the crop under analysis.

https://doi.org/10.19084/rca.17859 96 downloads

11.

Composição mineral em genótipos de batata-doce de polpas coloridas e adequação de consumo para grupos de risco
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Vizzotto, Márcia

; Pereira, Elisa dos Santos

; Castro, Luis Antonio Suita de

; Raphaelli, Chirle de Oliveira

; Krolow, Ana Cristina

Brazilian Journal of Food Technology

Journal Metrics
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2018, Volume 21 elocation e2016175

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Este estudo objetivou quantificar minerais presentes em genótipos de batata-doce de polpa colorida, selecionados e cultivados pela Embrapa (Empresa Brasileira de Pesquisa Agropecuária), no sul do Rio Grande do Sul, bem como verificar o percentual de adequação de consumo em grupos de risco nutricional. Genótipos de batata-doce cultivados no Banco Ativo de Germoplasma ‒ polpa branca (Rubissol, ILS 12, ILS 10, ILS 24); polpa creme (Cuia, ILS 03, ILS 44); polpa amarela/laranja (Amélia e Beauregard); polpa roxa (ILS 56, ILS 16 e ILS 71) ‒ foram analisados em triplicata. Os minerais foram quantificados por espectrometria de absorção atômica e os resultados foram expressos em miligrama do mineral correspondente a 100 g-1 de amostra úmida. Cálculos dos percentuais de adequação da ingestão diária recomendada de cada genótipo para grupos de risco (crianças entre 4 e 8 anos e gestantes entre 19 e 30 anos), com base no consumo de uma porção média de 200 g diários, foram realizados. As batatas-doces apresentaram grande variação na quantidade de minerais entre os genótipos e o potássio foi o mais abundante em todos estes, com destaque para os genótipos ILS 44, ILS 56 e ILS 71. Os genótipos de coloração roxa se sobressaíram na quantidade de potássio e os de coloração creme, na quantidade de fósforo. O consumo de uma porção média de 200 g de qualquer uma das batatas-doces forneceria 28% da necessidade de magnésio a crianças de 4 a 8 anos, e em torno de 20% das necessidades diárias de magnésio e 10% de potássio para gestantes.

Abstract The objective of this work was to quantify the minerals present in coloured pulp sweet potato genotypes, selected and cultivated by Embrapa (Empresa Brasileira de Pesquisa Agropecuária), in the southern region of Rio Grande do Sul, Brazil, as well as checking their percentage adequacy for consumption by groups at nutritional risk. The following sweet potato genotypes grown in the Active Germplasm Bank were analysed in triplicate: white pulp (Rubissol, ILS 12, ILS 10 and ILS 24); cream pulp (Cuia, ILS 03 and ILS 44); yellow/orange pulp (Amélia and Beauregard); and purple pulp (ILS 56, ILS 16 and ILS 71). The minerals were quantified by atomic absorption spectrometry and expressed as mg of the corresponding mineral per 100 g-1 of fresh weight. The percentages of adequacy of the recommended daily intake of each genotype for risk groups (children between 4 and 8 years old and pregnant women between 19 and 30 years old) based on the consumption of an average portion of 200 g per day, were calculated. The sweet potatoes showed great variation in the minerals amongst the genotypes, and potassium was the most abundant in all of them, especially in the genotypes ILS 44, ILS 56 and ILS 71. The purple coloured genotypes stood out for their potassium contents and the cream coloured genotypes for their phosphorus contents. The consumption of a portion about 200 g of any sweet potatoes would provide 28% of the magnesium requirement for children, aged 4 to 8 years, and about 20% of the daily requirement of magnesium and 10% of potassium, for pregnant women.

https://doi.org/10.1590/1981-6723.17516 6771 downloads

12.

Development of ‘Maciel’ peach trees on different propagation systems
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Ramm, Aline

; Souza, André Luiz Külkamp de

; Manica-Berto, Roberta

; Timm, Cari Rejane Fiss

; Schuch, Márcia Wulff

; Vizzotto, Márcia

Revista Brasileira de Fruticultura

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2018, Volume 40 N. 4 elocation e-477

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O desenvolvimento de novas tecnologias para produção de mudas é essencial na fruticultura. Nesse contexto, objetivou-se comparar aspectos vegetativos e produtivos de plantas de pessegueiro ‘Maciel’ e a qualidade de frutos oriundos de plantas sob diferentes sistemas de propagação. Para isso, o experimento foi conduzido em delineamento experimental de blocos completos casualizados, com quatro repetições, em esquema fatorial 2 x 3, sendo dois anos (2014 e 2015) e três sistemas de propagação (‘Maciel’ autoenraizado (miniestaquia), ‘Maciel’ com porta-enxerto ‘Okinawa’ (miniestaquia) e ‘Maciel’ com porta-enxerto ‘Okinawa’ (semente)). As variáveis avaliadas foram volume da copa, diâmetro do tronco, produtividade, eficiência produtiva, diâmetro das frutas, sólidos solúveis (SS), acidez titulável (AT), relação SS/AT, pH, firmeza de polpa, carotenoides e compostos fenólicos totais e capacidade antioxidante. As plantas de pessegueiro ‘Maciel’ autoenraizadas, no segundo ano de avaliação, apresentam maior volume da copa, diâmetro do tronco e, assim, expressam maior produtividade e eficiência produtiva. A qualidade dos frutos quanto a sólidos solúveis, acidez titulável, relação SS/AT, pH e firmeza de polpa não é alterada pelos diferentes sistemas de propagação. O uso de diferentes sistemas de propagação ao longo de dois anos modifica os teores de carotenoides e compostos fenólicos totais e, consequentemente, a capacidade antioxidante dos frutos de plantas de pessegueiro ‘Maciel’.

Abstract The development of new technologies for seedling production is essential in fruit growing. In this context, the objective was to compare vegetative and productive aspects of ‘Maciel’ peach trees and the quality of fruits from plants under different propagation systems. The experiment was carried out in a randomized complete block design with four replications, in a 2 x 3 factorial scheme, two years (2014 and 2015) and three propagation systems (self-rooted ‘Maciel’ (minicutting), ‘Maciel’ with rootstock ‘Okinawa’ (minicutting) e ‘Maciel’ with rootstock ‘Okinawa’ (seed)). The variables evaluated were canopy volume, trunk diameter, yield, productive efficiency, fruit diameter, soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, pulp firmness, carotenoids, phenolic compounds and antioxidant capacity. The self-rooted ‘Maciel’ peach plants, in the second year of evaluation, present higher canopy volume, trunk diameter and thus, they express higher yield and productive efficiency. Fruit quality how much soluble solids, titratable acidity, SS/TA ratio, pH and pulp firmness are not altered by different propagation systems. The use of different propagation systems over two years modifies the levels of carotenoids and phenolic compounds total and, consequently, the antioxidant capacity of the fruits of ‘Maciel’ peach plants.

https://doi.org/10.1590/0100-29452018477 534 downloads

13.

Characterization of bioactive compounds, antioxidant activity and minerals in landraces of pumpkin (Cucurbita moschata) cultivated in Southern Brazil
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PRIORI, Daniela

; VALDUGA, Eduardo

; VILLELA, Juliana Castelo Branco

; MISTURA, Claudete Clarice

; VIZZOTTO, Márcia

; VALGAS, Ricardo Alexandre

; BARBIERI, Rosa Lía

Food Science and Technology

Journal Metrics
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mar 2017, Volume 37 N. 1 Pages 33 - 40

Abstract: En | Text: En | PDF: En

Abstract The objective of this work was to evaluate the genetic variability for the synthesis of bioactive compounds and minerals in pumpkin (Cucurbita moschata) landraces. Total phenolic compounds, carotenoids, antioxidant activity and minerals were evaluated in 10 accessions of Cucurbita moschata landraces from the Genebank of Embrapa Temperate Agriculture (Pelotas - RS, Brazil). Twenty plants of each accession were cultivated in the field during the spring/summer of 2013/2014. After harvesting of mature fruits, the seeds were discarded and opposite longitudinal portions of the pulp were manually prepared for analysis of the bioactive compounds. For the determination of minerals, pumpkin samples were frozen in plastic bags, and after freeze-dried and milled. All analysis were performed in triplicate. The data obtained showed high genetic variability for the synthesis of phenolic compounds, carotenoids, antioxidant activity and minerals. The accessions C52, C81, C267 e C389 showed high levels of antioxidants and minerals, being recommended for use in pumpkin breeding programs. The accessions C52 and C389 are promising, especially because they present the highest levels of total carotenoids.

https://doi.org/10.1590/1678-457x.05016 3332 downloads

14.

Physicochemical and antioxidant capacity analysis of colored sweet potato genotypes: in natura and thermally processed
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Vizzotto, Márcia

; Pereira, Elisa dos Santos

; Vinholes, Juliana Rocha

; Munhoz, Priscila Cardoso

; Ferri, Núbia Marilin Lettnin

; Castro, Luis Antonio Suita de

; Krolow, Ana Cristina Richter

Ciência Rural

Journal Metrics
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2017, Volume 47 N. 4 elocation e20151385

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A batata-doce ( Ipomoea batatas (L.) Lam) é uma das raízes mais populares e antigas do Brasil, podendo ser consumida cozida, assada ou na forma de doces. A sua cocção pode levar à transformações físico-químicas alterando as propriedades nutricionais. O objetivo deste trabalho foi avaliar as características físico-químicas, compostos bioativos e atividade antioxidante de doze genótipos de batata-doce, de coloração de polpa variada, na forma in natura e assada. Foram determinados sólidos solúveis totais, acidez, açúcares, carotenoides, antocianinas, compostos fenólicos e atividade antioxidante nos seguintes genótipos de batatas-doces: polpa creme (Rubissol, Cuia, ILS03, ILS10, ILS12, ILS24 e ILS44); polpa laranja (Amélia e Beauregard) e polpa roxa (ILS56, ILS16 e ILS71). Quanto aos resultados foi observada ampla variação entre os genótipos de batata-doce, para todos os parâmetros analisados, em ambas as formas de preparo. A atividade antioxidante foi um parâmetro que demonstrou grande variação entre os genótipos, de 210,29 a 7870,57µg de equivalente trolox/g nos genótipos in natura e de 673,26 a 17306,22µg de equivalente trolox/g nos genótipos assados. Foi observado que em batatas-doces assadas os sólidos solúveis, acidez, açúcares e os compostos bioativos, com exceção dos carotenoides, tenderam a ser concentrados, elevando também a atividade antioxidante total. Em conclusão, o genótipo e a coloração da batata-doce foram parâmetros que exerceram influência sob a sua composição química. Cultivares como Amélia e Beauregard se destacaram pela quantidade de sólidos solúveis totais e carotenoides, respectivamente. Como fonte de antocianinas, as seleções ILS 16 e ILS 56 são recomendadas. O processo térmico influenciou a concentração de compostos antioxidantes e alterou algumas características físico-químicas.

ABSTRACT: Sweet potato ( Ipomoea batatas (L.) Lam) is one of the most popular and ancient roots of Brazil and it can be consumed at different forms such as boiled, roasted or as sweets. Its cooking can lead to physicochemical transformations altering the nutritional properties. The objective of this study was to evaluate the physicochemical characteristics, bioactive compounds and antioxidant capacity of twelve sweet potato genotypes of varying pulp color in natura and roasted. Soluble solids, acidity, sugars, carotenoids, anthocyanins, phenolic compounds and antioxidant capacity were analyzed in the following sweet potatoes genotypes: cream pulp (Rubissol, Cuia, ILS03, ILS10, ILS12, ILS24 and ILS44); orange pulp (Amelia and Beauregard); and purple pulp (ILS56, ILS16 and ILS71). According to the results, it was observed a wide variation among the sweet potato genotypes for all analyzed parameters, in both preparation forms. The antioxidant capacity was a parameter with wide variation among genotypes, 210.29 to 7870.57µg trolox equivalent/g in in natura form and 673.26 to 17306.22µg trolox equivalent/g in roasted form. Soluble solids, acidity, sugars and bioactive compounds, with the exception of carotenoids, tended to be concentrated, also increases the total antioxidant capacity, in roasted sweet potatoes. In conclusion, genotype and the color of sweet potatoes were parameters that had an influence on its chemical composition. Cultivars such as Amelia and Beauregard stood out by the amounts of total soluble solids and carotenoids, respectively. The selections ILS 16 and ILS 56 are recommended as sources of anthocyanins. Thermal process influenced the concentration of antioxidant compounds and changed some physicochemical characteristics.

https://doi.org/10.1590/0103-8478cr20151385 4236 downloads

15.

PRODUCTION, PHYSICAL-CHEMICAL QUALITY AND BIOATIVE COMPOUNDS OF MISTY BLUEBERRY FRUIT UNDER DIFFERENT PRUNING INTENSITIES
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MOURA, GISELY CORREA DE

; VIZZOTTO, MARCIA

; PICOLOTTO, LUCIANO

; ANTUNES, LUIS EDUARDO CORRÊA

Revista Brasileira de Fruticultura

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2017, Volume 39 N. spe elocation e-158

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O objetivo do presente trabalho foi avaliar o efeito de intensidades de poda na produção e na qualidade dos frutos de mirtileiro. O material vegetal utilizado foi mirtileiro da cultivar Misty. O fator estudado foi poda, em diferentes intensidades: sem poda; poda leve; poda-testemunha e poda drástica. O delineamento experimental foi em blocos ao acaso, com 4 repetições. Foram avaliadas a produção total de frutos, o tamanho de frutos, as características fisico-químicas como: pH, teor de sólidos solúveis totais (SST) e acidez total titulável (ATT), os compostos bioativos como: compostos fenólicos, antocianinas totais e atividade antioxidante. As plantas que receberam poda drástica apresentaram maiores médias em produção e tamanho de frutos. As maiores concentrações de compostos fitoquímicos no mirtilo ocorreram à medida que a poda foi mais drástica. O uso de diferentes intensidades de poda pode modificar o comportamento produtivo e a qualidade pós-colheita dos frutos.

ABSTRACT The objective of this study was to evaluate the effect of pruning intensity on yield and quality of blueberries fruits. It was evaluated the cultivar Misty. The treatments were: absence of pruning; light pruning; regular pruning and drastic pruning. The experimental design was randomized blocks with four replications. The variables analyzed were fruit production, fruit size, pH, total soluble solids (TSS) and total titratable acidity (TTA), and the bioactive compounds such as phenolic compounds, anthocyanins and antioxidant activity. The plants that received drastic pruning showed higher averages of production and fruit size. The highest concentrations of phytochemical compounds in blueberry fruits occurred as pruning was more drastic. The use of different intensity of pruning can modify the productive behavior and postharvest quality of fruits.

https://doi.org/10.1590/0100-29452017158 943 downloads

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