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| ABREU, G. F. de; ROSA, S. D. V. F. da; MALTA, M. R.; CLEMENTE, A. da C. S.; VILELA, A. L.; PEREIRA, R. W.. |
| Post-harvest phases may cause biochemical and physiological changes with direct effects on coffee (Coffea sp.) grains quality during its storage. The aim of this study was to determine the relevance of antioxidant isoenzyme expression on the coffee grains quality undergoing different types of processing and storage conditions. Coffea arabica L. ripe fruits was harvested, part of them was dry processed and another part was wet processing. Immediately, the coffee was dried. After drying, some of the grains were hulled and the other part was maintained unhulled. After that, the grains were stored under refrigerate controlled conditions (10 ºC and 50% relative humidity) or at 25 ºC without relative humidity control for a period of 12 months. Enzymatic... |
| Tipo: Artigo de periódico |
Palavras-chave: Alcohol deshidrogenasa; Catalasa; Esterasa; Peroxidasa; Alcohol dehydrogenase; Esterases; Peroxidases. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108915 |
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| SOUZA, J. M. L. de; FREIRE, V. A. P.; RUTZ, D.; RUIZ, W. A.; TORALLES, R. P.; ELIAS, M. C.. |
| Estudou-se os parâmetros que caracterizam os principais processos bioquímicos de transformação de substratos no período pós-colheita de frutas. Como matéria-prima utilizou-se maçãs (Mallus communis) da cultivar Fuji e pera (Pyrus communis L.) da cultivar Willians, obtidos no comércio de Pelotas, RS. Analisou-se acidez total, sólidos solúveis, açúcares redutores, fenóis totais, atividades de PPO e POD. Confirmou-se a influência do pH, da temperatura e do ácido ascórbico na atividade das enzimas PPO e POD, as quais demosntraram especificidade para os substratos catecol 1% (p/v) e para guaiacol, 0,4% (p/v), respectivamente. |
| Tipo: Parte de livro |
Palavras-chave: Calidad de la fruta; Pérdidas postcosecha; Manzanas; Polyphenoloxidase; Catecol oxidasa; Peroxidasa; Fruta; Qualidade; Pós-Colheita; Maçã; Malus Communis; Pêra; Pyrus Communis; Polifenoloxidase; Peroxidase; Fruit quality; Postharvest losses; Apples; Pears; Catechol oxidase. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104481 |
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| CAVALCANTE, M. de J. B.; ESCOUTE, J.; MADEIRA, J. P.; ROMERO, R. E.; NICOLE, M. R.; OLIVEIRA, L. C. de; HAMELIN, C.; LARTAUD, M.; VERDEIL, J. L.. |
| Globally, the banana plant (Musa spp) is the fourth most important crop after rice, wheat and corn (based on production in tons). It is cultivated in more than 100 tropical and subtropical countries, mainly by small producers and is a fundamental food source for millions of people. Black leaf streak disease (BLSD), caused by Mycosphaerella fijiensis Morelet (sexual phase) or Paracercospora fijiensis (Morelet) Deighton (asexual phase), is the main disease affecting the world's banana culture. This disease has a wide geographical distribution accounting for losses exceeding 50% of global banana production. We conducted a comparative histocytological study on the kinetics of the infection process using three banana genotypes with phenotypes that differ in... |
| Tipo: Artigo de periódico |
Palavras-chave: Peroxidasa; Enfermedades y desórdenes de las plantas; Bananos; Técnicas y protocolos genéticos.; Doença de planta; Banana; Musa sp; Fungo; Sigatoka negra; Mycosphaerella fijiensis; Interação genética; Musa acuminata; Variedade resistente; Análise comparativa; Peroxidase; Plant diseases and disorders; Bananas; Fungi; Black sigatoka; Genetic techniques and protocols.. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/873336 |
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