用于生产燃料乙醇的腰果苹果汁评估。
Evaluation of cashew apple juice for the production of fuel ethanol.
作者信息
Pinheiro Alvaro Daniel Teles, Rocha Maria Valderez Ponte, Macedo Gorete R, Gonçalves Luciana R B
机构信息
Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, 60455-760, Fortaleza, Ceará, Brazil.
出版信息
Appl Biochem Biotechnol. 2008 Mar;148(1-3):227-34. doi: 10.1007/s12010-007-8118-7. Epub 2008 Feb 26.
A commercial strain of Saccharomyces cerevisiae was used for the production of ethanol by fermentation of cashew apple juice. Growth kinetics and ethanol productivity were calculated for batch fermentation with different initial sugar (glucose + fructose) concentrations. Maximal ethanol, cell, and glycerol concentrations were obtained when 103.1 g L(-1) of initial sugar concentration was used. Cell yield (Y (X/S)) was calculated as 0.24 (g microorganism)/(g glucose + fructose) using cashew apple juice medium with 41.3 g L(-1) of initial sugar concentration. Glucose was exhausted first, followed by fructose. Furthermore, the initial concentration of sugars did not influence ethanol selectivity. These results indicate that cashew apple juice is a suitable substrate for yeast growth and ethanol production.
使用酿酒酵母的一种商业菌株通过发酵腰果苹果汁来生产乙醇。针对不同初始糖（葡萄糖 + 果糖）浓度的分批发酵计算了生长动力学和乙醇生产率。当使用103.1 g L⁻¹的初始糖浓度时，获得了最大乙醇、细胞和甘油浓度。在初始糖浓度为41.3 g L⁻¹的腰果苹果汁培养基中，细胞得率（Y(X/S)）计算为0.24（克微生物）/（克葡萄糖 + 果糖）。葡萄糖首先耗尽，随后是果糖。此外，糖的初始浓度不影响乙醇选择性。这些结果表明腰果苹果汁是酵母生长和乙醇生产的合适底物。
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