Journal
BIOTECHNOLOGY LETTERS
Volume 29, Issue 12, Pages 1839-1843Publisher
SPRINGER
DOI: 10.1007/s10529-007-9493-4
Keywords
acid; enzymatic hydrolysis; ethanol; agricultural waste; fruit and vegetable residues; reducing sugars
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Acid, alkaline and enzymatic hydrolysis of agricultural crop wastes were compared for yields of total reducing sugars with the hydrolysates being evaluated for ethanol production using a mixed culture of Zymomonas mobilis and Candida tropicalis. Acid hydrolysis of fruit and vegetable residues gave 49-84 g reducing sugars l(-1) and 29-32 g ethanol l(-1) was then obtained. Alkaline hydrolysis did not give significant amount of reducing sugars. Enzymatic hydrolysis of fruit and vegetable residues yielded 36-123 g reducing sugars l(-1) and 11-54 g ethanol l(-1).
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