Sản xuất butanol từ vỏ lúa mì bằng Clostridium beijerinckii ATCC 55025

Oxford University Press (OUP) - Tập 37 - Trang 495-501 - 2010
Ziyong Liu1, Yu Ying1,2, Fuli Li1, Cuiqing Ma, Ping Xu3
1Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, People’s Republic of China
2Graduate University of Chinese Academy of Sciences, Beijing, People’s Republic of China
3State Key Laboratory of Microbial Technology, Shandong University, Jinan, People’s Republic of China

Tóm tắt

Vỏ lúa mì, một sản phẩm phụ của ngành xay xát lúa mì, chủ yếu bao gồm hemicellulose, tinh bột và protein. Trong nghiên cứu này, dịch thủy phân của vỏ lúa mì được xử lý bằng axit sulfuric pha loãng được sử dụng làm cơ chất để sản xuất ABE (axeton, butanol và ethanol) bằng cách sử dụng Clostridium beijerinckii ATCC 55025. Dịch thủy phân vỏ lúa mì chứa 53,1 g/l tổng lượng đường giảm, bao gồm 21,3 g/l glucose, 17,4 g/l xylose và 10,6 g/l arabinose. C. beijerinckii ATCC 55025 có thể sử dụng đồng thời hexose và pentose trong dịch thủy phân để sản xuất ABE. Sau 72 giờ lên men, tổng lượng ABE trong hệ thống là 11,8 g/l, trong đó axeton, butanol và ethanol lần lượt là 2,2, 8,8 và 0,8 g/l. Quá trình lên men đã tạo ra năng suất ABE là 0,32 và năng suất 0,16 g l−1 h−1. Nghiên cứu này gợi ý rằng vỏ lúa mì có thể là một nguồn tài nguyên tái tạo tiềm năng cho quá trình lên men ABE.

Từ khóa

#vỏ lúa mì #Clostridium beijerinckii #thủy phân #ABE #lên men #axeton #butanol #ethanol

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Oxford University Press (OUP)

Tập 37

495-501

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