Vietnam is among the countries with favorable conditions for the cultivation of the cocoa tree intercropping with other industrial plants. Besides increasing the planting area, the improvement of the quality of cocoa and cocoa products is equally important. Fermented cocoa seeds is one of the most important production brings the flavor of cocoa products. In the cocoa bean fermentation microorganisms have very important role, the role of yeast for fermentation process, enabling the other microbes grow and develop. Improvement of the fermentation of cocoa help raise economic value. From practical that we made the subject "join yeast strains in the fermentation of cocoa by the method of molecular biology" that aims to identify, store yeast strains and production of micro-organisms for cocoa bean fermentation.The experiment was done including the main content as follows: isolated pure, biochemical test done and identify the yeast strains from natural fermented cocoa seeds in Dak Lak Province. To survey the physical characteristics (pH value, mucous and rice kernel weight) of seeds are naturally fermented compost. Then we bring human biomass the yeast strains have a selection on solid sales environment. Finally obtained results isolated and identified four strains of the Yeast Saccharomyces ceverisiae Hanseniaspora uvarum, Pichia, manshurica, Hanseniaspora opuntiae. 85% corn and environment 15% rice bran, fermented in 72 hours for optimal results, the Yeast Saccharomyces ceverisiae number security is 7.48 x 109 Cfu/g.
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