Resumo O objetivo deste trabalho foi selecionar genótipos de batata-doce (Ipomoea batatas) com folhas com potencial para serem usadas para consumo humano. Vinte e seis genótipos experimentais e quatro cultivares comerciais foram testados em delineamento de blocos ao acaso, com três repetições e dez plantas por parcela. O ensaio foi realizado no município de Lavras, no estado de Minas Gerais, Brasil. Foram avaliados formato e lóbulo da folha, produção da parte aérea, produção de folhas comestíveis, percentagem de folha comestível, massa seca de folha comestível e produção de látex, bem como clorofila total, pH, conteúdo de sólidos solúveis, acidez titulável, compostos fenólicos totais e teor de antocianinas das folhas. As raízes foram caracterizadas quanto às cores da sua polpa e casca. Quinze genótipos apresentaram as maiores produtividades de parte aérea (29,6 a 51,8 Mg ha-1) e de folhas comestíveis (7,8 a 12,7 Mg ha-1). Nas análises bioquímicas, foram observados altos teores de clorofila, compostos fenólicos totais e antocianinas. Além disso, pH, sólidos solúveis e acidez titulável foliar não diferiram significativamente entre os genótipos avaliados. As folhas de dez genótipos são recomendadas para alimentação humana. batatadoce batata doce Ipomoea batatas humano acaso parcela Lavras Gerais Brasil látex total pH casca 29,6 296 29 6 (29, 518 51 8 51, ha1 ha 1 ha-1 7,8 78 7 (7, 127 12 12, ha1. . bioquímicas disso humana 29, 2 (29 5 ha- 7, (7 (2 (

Abstract The objective of this work was to select sweet potato (Ipomoea batatas) genotypes with leaves with potential to be used for human consumption. Twenty-six experimental genotypes and four commercial cultivars were tested in a randomized complete block design with three replicates and ten plants per plot. The trial was carried out in the municipality of Lavras, in the state of Minas Gerais, Brazil. Leaf shape and lobe, aerial-part yield, edible-leaf yield, edible-leaf percentage, edible-leaf dry mass, and latex production, as well as leaf total chlorophyll, pH, soluble solids contents, titratable acidity, total phenolic compounds, and anthocyanin contents, were evaluated. Roots were characterized as to their pulp and peel colors. Fifteen genotypes presented the highest aerial-part (29.6 to 51.8 Mg ha-1) and edible leaf (7.8 to 12.7 Mg ha-1) yields. In the biochemical analysis, high contents of chlorophyll, total phenolics, and anthocyanins were observed. In addition, pH, soluble solids, and leaf titratable acidity did not differ significantly among the evaluated genotypes. Leaves of ten genotypes are recommended for human consumption. Ipomoea batatas consumption Twentysix Twenty six plot Lavras Gerais Brazil lobe aerialpart aerial part yield edibleleaf percentage mass production chlorophyll pH compounds colors 29.6 296 29 6 (29. 518 51 8 51. ha1 ha 1 ha-1 7.8 78 7 (7. 127 12 12. yields analysis phenolics observed addition 29. 2 (29 5 ha- 7. (7 (2 (

Abstract The guapeva (Pouteria cf. gardneriana Radlk.) is a Brazilian fruit that belongs to the Sapotaceae family and is considered a source of natural antioxidants and phenolic compounds; Thus, the objective of this work was to investigate the use of guapeva in the form of jam stored at different temperatures (25 °C and 35 °C) and to evaluate the degradation kinetics regarding the physicochemical parameters, bioactive compounds, and volatile profile, during the storage period of 150 days, in low-density polypropylene packaging’s. The stored jams were mainly influenced by the storage time variable, with significant reductions in titratable acidity, pH, color, vitamin C, carotenoids, ABTS●+, DPPH, and volatile profile. The temperatures studied were not able to significantly affect the shelf life determined for the jams; however, the best temperature for storage stability of the guapeva jams was 25 °C since the most significant degradation of the compounds occurs with the use of 35 °C. The correlation between time and temperature had no significant effect on carotenoid content.

Abstract This study evaluated the impact of processing, packages (amber and transparent glass jars), and storage time on the stability of the bioactive compounds (total phenolic compounds and vitamin C), and antioxidant activity of mangaba jelly. Jelly processing, significantly (p < 0.05) decreased the bioactive compounds and antioxidant activity. The storage time, significantly (p < 0.05) influenced all the variables studied in this work, although they were not affected by packages. A significant decrease of the bioactive compounds and antioxidant activity was observed during the jelly storage. HPLC-DAD/UV-Vis analyses allowed to identify 10 phenolic compounds, including flavonoids and non-flavonoids, and among these, quercetin and catechin were the major compounds. After processing, all these compounds decreased significantly (p < 0.05), except for the gallic acid and the p-coumaric acid, which presented an increasing tendency. During jelly storage, only gallic acid, caffeic acid, catechin, and rutin were affected. Despite the reduction in the antioxidant activity and bioactive compounds studied, mangaba jelly retained good levels of them and may be considered a potential novel functional food.

Resumo A utilização de plantas alimentícias não convencionais na alimentação humana tem crescido nos últimos anos, impulsionada principalmente pelos pratos gourmet. Entretanto, estudos comprovando as propriedades alimentícias destas espécies ainda são incipientes. Sendo assim, objetivou-se com este trabalho avaliar as propriedades nutricionais, bioativas e antinutricionais das partes comestíveis da dália roxa (raiz tuberosa e flor), para elucidar seu potencial e a segurança no seu consumo. Foram, dessa forma, analisados: composição centesimal, valor calórico, pH, sólidos solúveis totais, acidez total titulável, ratio, antocianinas, carotenoides, vitamina C, fenólicos totais, taninos, nitratos e minerais para a raiz e a flor, além da avaliação do teor de inulina na raiz. Os resultados foram analisados pelas médias e desvio padrão, e foi realizada a análise fatorial exploratória. Ambas as partes avaliadas possuem constituintes requeridos para uma boa alimentação em concentrações semelhantes às das hortaliças convencionais, enquanto os componentes antinutricionais também são compatíveis aos de alimentos comumente consumidos, com valores aceitáveis na alimentação. Desse modo, é evidenciado que flor e raiz de dália roxa apresentam potencial para uso na alimentação humana, podendo ser consideradas como boas opções para incrementar e diversificar uma dieta saudável. anos gourmet Entretanto incipientes assim objetivouse objetivou se nutricionais , flor) consumo Foram forma centesimal calórico pH totais titulável ratio antocianinas carotenoides C taninos padrão exploratória consumidos modo saudável

Abstract The use of unconventional edible plants in human food has grown more widespread in recent years, driven mainly by gourmet dishes. Evidence of the food properties of these species is still scarce. Aiming to obtain more in-depth knowledge of dahlia plants, this study aimed to evaluate the nutritional, bioactive, and antinutritional properties of the edible parts of purple dahlia (tuberous root and flower) to elucidate their value and safety as foods. The percent composition, caloric value, pH, Total Soluble Solids (TSS), Total Titratable Acidity (TTA), ratio of TSS to TTA, anthocyanins, carotenoids, vitamin C, total phenolics, tannins, nitrates, and minerals of the roots and flowers were analyzed. The inulin content in the root and the color of the flower were also evaluated. The results were reported as mean and standard deviation, and exploratory factor analysis was performed. Both parts of the dahlia had constituents that contribute to a good diet at concentrations like those in conventional vegetables, whereas the antinutritional components were also compatible with those of commonly consumed foods, with acceptable dietary values. Thus, it is evident that purple dahlia flowers and roots have potential for use in human food and can be considered good options to improve and diversify a healthy diet. years dishes scarce indepth depth nutritional bioactive tuberous foods composition pH TSS, , (TSS) TTA (TTA) anthocyanins carotenoids C phenolics tannins nitrates analyzed evaluated deviation performed vegetables values Thus (TSS (TTA

Abstract The objective herein was to evaluate the effect of processing, packaging type (with and without exposure to light) and storage time on the quality of functional attributes of jelly prepared from curriola pulp. The experimental design was a completely randomized 2 × 5 factorial design, with two levels of packaging (transparent and amber) and five storage periods (0, 3, 6, 9 and 12 months). In general, the processing of curriola pulp determined a slight increase in phenolic compounds and antioxidant activity and a reduction in vitamin C content of freshly prepared jelly. The amber package and storage time promoted higher retention of bioactive compounds, mainly gallic acid, besides reducing the percentage of jelly oxidation, determined by the β-carotene / linoleic acid antioxidant method. A reduction in phenolic compounds and vitamin C was observed, which caused a reduction in the antioxidant capacity of curriola jelly. Of the five phenolic compounds identified in freshly prepared curriola jelly, gallic acid was identified as the major compound. In addition, the use of amber packaging, which prevents the incidence of light, may favor the maintenance of bioactive compounds during storage period of curriola jelly under environmental conditions.

Resumo Cruá vermelho é um fruto aromático ainda pouco conhecido, originário da América Tropical, provavelmente do Brasil. É utilizado para fins alimentar, medicinal, repelente de insetos e aromatização de ambientes. Pouco se sabe acerca de suas características nutricionais. Diante do exposto, o presente trabalho visou realizar a caracterização física, físico-química e nutricional do fruto cruá vermelho. Os frutos foram caracterizados quanto a composição centesimal, pH, sólidos solúveis (SS), acidez titulável (AT), cálculo da ingestão diária recomendada (IDR), antocianinas, carotenoides totais, vitamina C e atividade antioxidante da polpa. A estabilidade dos carotenoides, da vitamina C e da cor dos frutos foi acompanhada durante 21 dias de armazenamento sob congelamento a -18 °C. Os carotenoides, a vitamina C e a cor do fruto foram afetados pelo congelamento durante o armazenamento. O fruto apresenta características apreciáveis do ponto de vista nutricional e funcional, uma vez que o consumo diário de 100 g de sua polpa fornece uma apreciável fração de nutrientes recomendados para ingestão diária por um indivíduo adulto. O fruto apresenta um baixo valor calórico, fato interessante para preparações dietéticas, além de apresentar capacidade antioxidante e compostos fitoquímicos de interesse para a saúde humana, como carotenoides e antocianinas. Em relação à preservação dos compostos bioativos apresentados pelo fruto, verificou-se que o congelamento não foi eficaz para a preservação de carotenoides e vitamina C. Diante de todas as características apresentadas, cruá vermelho se apresenta como uma excelente alternativa para inclusão na alimentação humana.

Abstract Musk cucumber (Sicana odorifera Naudin) is a still little-known aromatic fruit native of Tropical America, probably Brazil. It is used as food and insect repellent, for medicinal purposes, and to flavor environments. Little is known about its nutritional characteristics. In this context, this study aimed to perform the physical, physicochemical and nutritional characterization of musk cucumber. The fruits were characterized according to their chemical composition, pH, soluble solids (SS), titratable acidity (TA), recommended daily intake (RDI), anthocyanins, total carotenoids, vitamin C, and antioxidant activity of the pulp. The stability of carotenoids, vitamin C, and fruit color was monitored for 21 days of frozen storage (-18 °C). Carotenoids, vitamin C, and fruit color were affected by freezing during storage. The fruit has appreciable characteristics from a nutritional and functional point of view, since the daily consumption of 100 g of its pulp provides a significant fraction of nutrients recommended for daily intake by an adult. The fruit presents low caloric value - an interesting fact for dietary preparations, in addition to having antioxidant capacity and phytochemicals of interest to human health, such as carotenoids and anthocyanins. Regarding the bioactive compounds present in the fruit, it was found that freezing was not effective to preserve carotenoids and vitamin C. Given all the characteristics presented, musk cucumber is an excellent alternative for inclusion in human diet.

Abstract The purpose of this study was to determine the effect of thermal vacuum processing and thermal processing without vacuum on the content of bioactive compounds and the antioxidant activity of low-calorie mixed Brazilian cerrado fruit jam. The mixed jam consisted of 60% of mixed pulp of Marolo, soursop and sweet passion fruit, and 40% other ingredients. This jam was utilized a completely randomized design to evaluate the antioxidant activity, total phenolic profile and content, carotenoid profile, and ascorbic acid content. The results showed that there was a reduction in bioactive compounds in the jam of 44.37% for total phenolics, 50.56% for ascorbic acid, 78.40% total carotenoids, and 65.14% for antioxidant activity when compared with the mixed pulps. In the carotenoid profile, reduction was observed for all compounds in relation to the mixed pulps, especially β-carotene (average loss of 81.89%). Independent of the processing, there was a significant increase in m-coumaric acid in the jam compared with the mixed pulp. The concentrations of other phenolic compounds decreased after processing. These results suggest that thermal vacuum processing is most suitable for the production of jam with higher nutritional value.

Abstract The objective of this study was to prepare a jelly with the pulp of curriola as raw material and evaluate the effect of processing, type of glass packaging (transparent and amber) and storage time on the quality of the jelly by means of physical (color), chemical (proximal composition, total soluble solids, titratable acidity and pH), microbiological (coliforms at 35 °C and 45 °C, filamentous fungi and Salmonella sp.) and sensorial analyses (sensory acceptance and purchase intent). For this, the raw material and the freshly prepared jelly were compared and a completely randomized design in factorial 2 x 5 was used. There were two levels of light exposure (transparent packaging and amber packaging) and five storage times (0, 3, 6, 9 and 12 months), with four replicates. Processing affected all physical, chemical and microbiological characteristics of the freshly prepared jelly. Between the two factors studied, only the storage time significantly influenced the jelly quality, except protein, ash, dietary fiber content and taste and purchase intention. According to the microbiological analysis, the product is within the legislated recommendations. It was well accepted sensorially and can be kept under ambient conditions and still maintain its durability for up to twelve months.

Resumo Compostos fenólicos são antioxidantes naturais e podem ser encontrados com abundância em frutas e hortaliças. Um dos primeiros métodos criados para análise de compostos fenólicos foi o método Folin-Denis; posteriormente, foi criado o método Folin Ciocalteu e um dos mais recentes é o método Fast Blue. Pela importância desses compostos nos alimentos, este trabalho teve o objetivo principal de determinar os compostos fenólicos totais em três frutas: maracujá, manga e laranja, por três diferentes métodos de determinação. Além disso, foram avaliados o teor de vitamina C, sólidos solúveis, acidez titulável e pH dessas frutas. Diante dos resultados, verificou-se que não houve diferença nos valores de vitamina C, sólidos solúveis e acidez titulável em relação aos valores encontrados na literatura. Ao comparar os três métodos (Fast Blue BB, Folin Ciocalteu e Folin-Denis), verificou-se diferença nos teores de compostos fenólicos, que pode estar relacionada com os distintos reagentes utilizados em cada método e seus vários modos de ação.

Abstract Phenolic compounds are natural antioxidants and can be found with abundance in fruits and vegetables. One of the first methods created for analyzing phenolic compounds was the Folin-Denis method; and hereafter, the Folin Ciocalteu method was developed and recently, one of the most recent method is the Fast Blue. Due to the importance of these compounds in food, this work aimed to determine the total phenolic compounds in three fruits, such as: Passion Fruit, “Palmer” mango and “Pera” orange. In addition, these fruits were analyzed through three different determination methods. Furthermore, the content of vitamin C, soluble solids, titratable acidity and pH of these fruits were evaluated. Based on the results, it was verified that there was no difference among the values of vitamin C, soluble solids and TA in relation to those found in the literature. When comparing the three methods (Fast Blue BB, Folin-Ciocalteu Reagent and Folin-Denis Reagent), the results showed a difference in the phenolic compounds that may be related to the distinct reagents used in each method and its different action.

RESUMO A Mangaba, fruto exótico do cerrado brasileiro, é muito apreciada por suas características sensoriais peculiares. Aqui, objetivamos avaliar o perfil sensorial da polpa de mangaba submetida a três tratamentos (polpas não pasteurizadas e pasteurizadas; congeladas por ar estático e ar forçado; armazenadas congeladas por zero, 4, 8 e 12 meses). Foram aplicados os seguintes testes sensoriais: dominância temporal das sensações (TDS) (identificar sensações dominantes do sabor ao longo do tempo de consumo), escala ideal (identificar a concentração ideal de sacarose a ser adicionada ao néctar) e teste de aceitação (avaliar o efeito dos tratamentos na aceitação do consumidor). O TDS, identificou o gosto ácido na maioria dos tratamentos, combinado com a identificação de um sabor ruim na maioria das polpas a partir de 8 meses de armazenamento congelado. A escala ideal determinou que 87,8 g / L de sacarose seja adicionada ao néctar de mangaba. Os métodos de congelamentos não influenciaram a aceitação das polpas. A pasteurização favorece maior aceitação da polpa de mangaba por até 8 meses, no entanto, aos 12 meses de armazenamento, os tratamentos ainda apresentam boa aceitação sensorial.

ABSTRACT The Mangaba, an exotic fruit of the Brazilian Cerrado, is very appreciated for its peculiar sensory characteristics. Here we aimed to evaluate the sensory profile of mangaba pulp subjected to three treatments (unpasteurized and pasteurized pulps; frozen by static air and forced air; stored frozen for zero, 4, 8 and 12 months). The following sensory tests were applied: temporal dominance of sensations (TDS) (identify and check the dominant sensations of flavor over time of consumption), ideal scale (identify optimal concentration of sucrose to be added in nectar) and acceptance test (to evaluate the effect of treatments on consumer acceptance). By TDS analyses, a sour taste was reported for most treatments, combined with the identification of a bad flavor in most pulps from 8 months of frozen storage. The ideal scale determined that 87.8 g/L sucrose should be added to the mangaba nectar. The frozen methods by static air or forced air did not significantly influence the sensory acceptance of the mangaba pulp. Pasteurization favors high mangaba pulp acceptance for up to 8 months, however, by 12 months of storage, treatments still have good sensory acceptance.

Abstract The wild native species of the Brazilian savannah have attractive flavors and nutritive compounds. Among the Combretaceaes genus, the Buchenavia tomentosa Eichler plays an important role in popular medicine, however, little is known about its chemical composition. Thus, in order to a chemical-biological prospection in fruits of the Tocantins savannah, the aim of this work was to characterize the B. tomentosa fruits collected in the central and southern regions of Tocantins State, about some of its physical, physical-chemical and biochemical properties. The fruits, for this study, were collected in two regions (Palmas and Gurupi) in Tocantins State and analyzed in the parameters: coloration, centesimal composition, pectin, soluble solids, pH and acidity, vitamin C content and phenolic compounds. The study obtained results demonstrate that the fruits are of a light yellow color, are acidic, have high values of °Brix and glycidic fraction (carbohydrates). However, the high levels of vitamin C (1.26 to 3.57 g ascorbic acid per 100 g of pulp) and phenolic compounds (2.93 to 4.20 g GAE 100 g-1) are noteworthy. This study evidences a great nutritional potential for the fruits of B. tomentosa.

Existe pouca informação a respeito do aroma de melancia minimamente processada e das alterações metabólicas que ocorrem com o processamento mínimo. Sabendo-se que há estreita relação entre aroma característico, textura e qualidade torna-se necessário o conhecimento a respeito das alterações do perfil volátil e textura deste produto, que é intensamente comercializado nas redes de supermercados do Brasil. Diante disso, o objetivo deste trabalho foi analisar o perfil volátil utilizando a técnica de microextração em fase sólida (SPME) e as modificações relacionadas à textura de melancia minimamente processada armazenada a 5 °C, por dez dias. A cromatografia associada com análise sensorial ('sniffing') permitiu concluir que os álcoois e aldeídos com nove carbonos (C9) são os principais compostos responsáveis pelo sabor e aroma de melancia minimamente processada armazenada a 5 ± 1 °C/90 ± 5% UR, durante dez dias e que a intensidade desse aroma diminui com o armazenamento, porém, sem comprometer a qualidade final do produto. Observou-se que o teor de líquido drenado, pectina solúvel e perda de massa aumentaram ao longo do armazenamento com concomitante diminuição da firmeza. A atividade de pectinametilesterase permaneceu constante e a de poligalacturonase não foi detectada.

Existing data about the aroma of fresh-cut watermelon and the metabolic changes that occur with minimal processing are scarce. Given the close relationship that exists between aroma, texture, and quality characteristics, it is necessary to investigate the changes in the volatile profile and texture of watermelon, a fruit extensively sold in supermarket chains throughout Brazil. The objective of this work was to analyze the volatile profile using solid phase microextraction (SPME) as well as texture changes in fresh-cut watermelon stored at 5 °C for ten days. Chromatography associated with sensory analysis (sniffing) led us to conclude that 9-carbon (C9) alcohols and aldehydes are the major responsible for the flavor and aroma of minimally processed watermelon stored at 5 ± 1 °C/90 ± 5% RH for ten days, and also that the aroma diminishes in intensity with storage, but it does not affect the final quality of the product. It was noted that the amount of drained liquid, soluble pectin, and weight loss increased during storage concurrently with a reduction in firmness and a structural breakdown of the cells. Pectin methyl esterase activity remained constant and polygalacturonase activity was not detected.

Neste trabalho foram avaliadas as mudanças físico-químicas provocadas pelo tipo de armazenamento do suco de abacaxi 'Pérola', durante de 48 horas após sua elaboração. Foram avaliadas 4 condições de armazenamento, em ambiente refrigerado (4 ±1º C) e em temperatura ambiente (22 ±1º C), ambas com e sem luminosidade. O experimento foi conduzido em delineamento inteiramente casualizado, com os tratamentos dispostos em esquema fatorial 2 x 2 x 6, sendo 2 ambientes de luminosidade (presença e ausência), 2 condições de temperatura (refrigeração e ambiente) e 6 tempos de amostragem (0, 6, 12, 24, 36 e 48 horas) com 3 repetições. Foram analisados, pH, acidez titulável, sólidos solúveis, vitamina C total e cor utilizando-se as variáveis claridade (L*), ângulo de cor (hº) e cromaticidade (C*). O tempo de armazenamento apresentou influência negativa na qualidade do suco provocando a diminuição dos teores de ácido ascórbico e ácido cítrico, alterações na cor, principalmente o escurecimento. Entretanto, quando armazenado em ambiente refrigerado e sem luz, o suco conservou suas características iniciais por mais tempo, sendo estas melhor preservadas pelas baixas temperaturas.

In this work, psycho-chemical changes caused by the storage of homemade 'Pérola' pineapple juice, over 48 hours after its preparation were evaluated. Four storage conditions were evaluated in a refrigerated environment (4 ±1º C) and in room temperature (22 ±1º C) both in the presence and abscence of light. The experiment was conducted with a totally random design, with treatments arranged in a factorial 2 x 2 x 6, with 2 light conditions (presence and absence), 2 temperature conditions (cooling and room temperature) and 6 sampling times (0, 6, 12, 24, 36 and 48 hours) with three replicates. pH, titratable acidity, soluble solids, total vitamin C and color using the variables: luminosity (L*), hue angle (hº) and chromaticity (C*) were analyzed. The period of storage presented a negative influence on the pineapple juice, causing a reduction of ascorbic and citric acid contents and color changes, mainly darkening. However, when stored in refrigerated environment in the abscence of light, the juice conserved its initial features for a longer time, which were better preserved by low temperatures.

O objetivo do presente trabalho foi avaliar a vida útil de mandioquinha-salsa 'Amarela de Senador Amaral' minimamente processada e armazenada em três temperaturas de armazenamento. As raízes foram descascadas manualmente, fatiadas (±1 cm de espessura), imersas em solução de dicloro isocianurato de sódio 100 mg L-1 por 15 minutos e acondicionadas em embalagem rígida de polipropileno (15 x 11,5 x 4,5 cm). As embalagens, contendo cerca de 150 g de raízes minimamente processadas, foram armazenadas a 0±1ºC, 5±1ºC ou 10±1ºC durante 15 dias, sendo realizadas análises a cada 3 dias. O delineamento experimental foi inteiramente casualizado em fatorial 3 x 6, sendo 3 temperaturas de armazenamento e 6 períodos de armazenamento, com 3 repetições. O armazenamento a 0ºC determinou, ao longo do armazenamento, aumento nos valores de L* e b*, menores valores de a*, menor atividade da peroxidase, polifenoloxidase, poligalacturonase, solubilização péctica e taxa respiratória, sendo a temperatura mais indicada para o armazenamento da mandioquinha-salsa 'Amarela de Senador Amaral' minimamente processada.

The shelf life of fresh-cut Peruvian carrots 'Amarela de Senador Amaral', stored under three temperatures, was evaluated. The roots were peeled manually, sliced (±1 cm thick), immersed in a solution of sodium dichloroisocyanurate 100 mg L-1 during 15 minutes and packed in rigid polypropylene package (15 x 11.5 x 4.5 cm). The packages containing around 150 g of fresh cut roots were stored under 0±1ºC, 5±1ºC or 10±1ºC during 15 days. The analyses were performed every 3 days. The experimental design was completely randomized in a 3 x 6 factorial (3 storage temperature) and 6 periods of storage, with three replicates. The storage at 0ºC provided higher L* and b* values, lower a* values, lower peroxidase, polyphenoloxidase and polygalacturonase activity, pectic solubilization and respiration rate. This temperature is the most proper for the storage of the fresh-cut peruvian carrot 'Amarela de Senador Amaral'.

Objetivou-se, neste trabalho, avaliar a eficiência dos sanificantes hipoclorito de sódio, peróxido de hidrogênio e dicloro isocianurato de sódio aplicados antes e após o processamento mínimo de mandioquinha-salsa. Foram utilizadas raízes de mandioquinhasalsa da cultivar Amarela de Senador Amaral adquiridas no comércio local. Para limpeza superficial das raízes foram utilizados detergente e água. Após, as raízes foram divididas em dois grupos: controle (não sanificado) e sanificado, por imersão em dicloro isocianurato de sódio 100 mg.L-1, por 15 minutos. Em seguida foram descascadas, fatiadas em rodelas e imersas nos seguintes sanificantes: hipoclorito de sódio (25, 50 e 100 mg.L-1, por 10 minutos), peróxido de hidrogênio (3 e 6%, por 5 minutos) e dicloro isocianurato de sódio (50, 100 e 200 mg.L-1, por 10 minutos); embaladas e armazenadas em câmara fria ( 5 ± 1ºC e 98% UR), durante 15 dias. As análises realizadas a cada 3 dias foram pH, acidez titulável, sólidos solúveis, colimetria e pesquisa de Salmonella sp.. As variáveis pH, AT e SS não foram influenciadas pelos tratamentos utilizados. A presença de coliformes 45 ºC e Salmonella sp. não foi detectada, durante o armazenamento de mandioquinha-salsa minimamente processada, controle ou sanificada e foram observadas contagens baixas para coliformes 35 ºC. A sanificação do produto antes do processamento com dicloro isocianurato de sódio 100 mg.L-1 e condições higiênico-sanitárias adequadas, durante o processamento, possibilita a obtenção de um produto com padrão microbiológico de acordo com a legislação de alimentos, até o 15º dia de armazenamento.

The objective of this work was to evaluate the efficiency of the sanitizers sodium hypochlorite, hydrogen peroxide and sodium dichloro isocianurate applied before and after the minimum processing of the Peruvian carrot. Peruvian carrots of the cultivar Amarela de Senador Amaral purchased in the local commerce were utilized. Detergent and water were used for the surface cleaning of the roots. Afterwards, the roots were divided into two groups: control (not sanitized) and sanitized, for immersion into 100mg.L-1 sodium dichloro isocyanurate for 15 minutes. They were then peeled, sliced into rings and immersed into the following sanitizers: sodium hypochlorite (25, 50 and 100 mg.L-1 for 10 minutes), hydrogen peroxide (3 and 6%, for 5 minutes) and sodium dichloro isocyanurate (50, 100 and 200 mg.L-1 for 10 minutes); packed and stored in cold chamber ( 5 ± 1ºC and 98% RH) for 15 days. The following analyses were performed every 3 days: pH, titrable acidity, soluble solids, coliforms determination and search for Salmonella. The pH, AT and SS variables were not affected by the used treatments. The presence of coliforms at 45ºC and Salmonella was not detected during the storage of either control or sanitized fresh-cut Peruvian carrots and low counts for coliforms at 35ºC were found. The sanitization of the produce before processing with 100mg.L-1 sodium dichloro isocyanurate and hygienic-sanitary conditions during processing allow obtaining a produce with microbiological standard according to the food legislation until the 15th day of storage.