Resumo A classificação precisa da qualidade é um dos requisitos do mercado de flores, que está se tornando cada vez mais sofisticado e exigente. No entanto, há uma falta de informações sobre como essa classificação é realizada, e muitas vezes é conduzida de maneira menos empírica e mais subjetiva. Portanto, este trabalho teve como objetivo comparar a eficiência da classificação pessoal (in-person) e usando imagens digitais para determinar a qualidade de flores de antúrio ‘Tropical’. Foram realizados três experimentos quanto ao registro das imagens e ao modo de exibição das imagens e comparando três métodos de classificação da qualidade pós-colheita do antúrio. Concluiu-se que as medidas dos parâmetros colorimétricos podem ser realizadas em qualquer lugar da espata, mas o período em que os parâmetros medidos são afetados pela senescência. Os avaliadores diferem na precisão com que atribuem notas e não há necessidade de conhecimento prévio para avaliar a qualidade usando imagens. O parâmetro L* medido pelo colorímetro apresentou maior correlação com a avaliação da qualidade pós-colheita de Anthurium andraeanum Lind. ‘Tropical’. A classificação por imagens pode ser realizada usando diferentes dispositivos eletrônicos, e a classificação in-person é mais rigorosa do que a classificação realizada com imagens digitais.

Abstract Accurate quality classification is one of the requirements of the flower market, which is becoming increasing more sophisticated and demanding. However, there is a lack of information regarding how such classification is performed, and it is often conducted in a less empirical and more subjective way. Therefore, this work aimed to compare the efficiency of personal classification (in-person) and using digital images to determine the quality of anthurium cv. Tropical (Anthurium andraeanum Lind.). Three experiments were performed regarding the recording of the images and the display mode of the images and comparing three methods of classifying postharvest quality of anthurium. It was concluded that measurements of colorimetric parameters can be performed anywhere on the spathe, but the period in which the parameters are measured does affect. Evaluators differ in the thoroughness with which they assign grades, and there is no need for prior knowledge to assess quality using images. The L* parameter measured by the colorimeter presented higher correlation with the evaluation of postharvest quality of Anthurium andraeanum Lind. ‘Tropical’. Classification by images can be performed using different electronic devices, and in-person classification is more rigorous than classification conducted using digital images.

Abstract Endophytic fungi belonging to the genus Muscodor now transferred to Induratia are known producers of bioactive volatile organic compounds (VOCs) with many industrial applications. However, the members of this genus have rarely been reported to produce non-volatile metabolites including enzyme. Enzymes of the endophytes are degraders of the polysaccharides available in the host plants and the knowledge of enzyme production by Induratia spp. may provide insights into their possible biotechnological applications. The aim of this study was to evaluate the activity of amylase, cellulase, lipase, pectinase, phytase, protease, endo β-1,4 glucanase and exo β-1,4 glucanase enzymes produced by fungi of the species Induratia coffeana, Induratia yucatanensis and Induratia sp. isolated from organic coffee plants. All Induratia spp. were able to produce the extracellular enzymes cellulase, pectinase, protease, and phytase. Eight fungi were able to produce lipase and four produced amylase. The specific activity of endo β-1, 4 glucanase and exo β-1,4 glucanase enzymes were detected for 9 and 8 endophytic fungi, respectively. This work demonstrated for the first time, the array of enzymes produced by Induratia spp. isolated from Coffea arabica in organic systems in Brazil.