Compuestos volátiles libres y enlazados glicosídicamente en la pulpa de la uva Caimarona (Pourouma cecropiifolia Mart.)

作者: Juliana Constanza Barrios Guio , Diana Cristina Sinuco Leon , Alicia Lucia Morales Perez

DOI: 10.1590/S0044-59672010000100024

关键词:

摘要: Os componentes volateis presentes na polpa da uva Caimarona foram estudados mediante GC-MS. Estes extraidos por tres tecnicas: evaporacao de aroma assistida com solvente (Solvent Assisted Flavour Evaporation SAFE), extracao continua liquido-liquido (LL) e destilacao arraste vapor-extracao simultânea orgânico (DES). Em geral os predominantes alcoois alifaticos terpenicos. As notas olfactivas do extracto SAFE descritas como floral tenue verde herbal similares as exibidas pela fresca. Este extrato apresentou majoritarios o linalol 1,2-propanodiol salicilato metilo. contraste, LL passa vinho moscatel seus acido acetico, metilo 2,6-dimetil-2(Z),7-octadien-1,6-diol. O DES foi descrito fresco, floral, cereal amargo, constituido um numero reduzido mostrando efeito negativo temperatura dos aromas; nesta 1,2-propanodiol, Adicionalmente, liberados hidrolises enzimatica (Rohapect D5L) glicosidos benzoico a vanilina. Se deve destacar que ainda nao esteja entre agliconas volateis, notou-se presenca diois biogeneticamente relacionados: 3,7-dimetil-1,5-octadien-3,7-diol isomeros E y Z 2,6-dimetil-2,7-octadien-1,6-diol.

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