Biochemical features and bioethanol production of microalgae from coastal waters of Pearl River Delta
Biochemical features and bioethanol production of microalgae from coastal waters of Pearl River Delta
复制标题
珠江三角洲近海微藻的生化特征及生物乙醇生产
DOI：
10.1016/j.biortech.2012.10.006
复制
发表时间：
2013-01-01
影响因子：
11.4
通讯作者：
Wang, Guangyi
中科院分区：
文献类型：
--
作者：
Guo, Hui;Daroch, Maurycy;Wang, Guangyi
对珠江三角洲沿海沃茨的微藻菌株进行了鉴定、培养、碳水化合物积累和生物乙醇生产的研究。18个菌株分别属于小球藻科、散囊藻科、新绿球藻科、月牙藻科和风景藻科。从分离的菌株中选择Mychonastes afer PKUAC 9和Scenedesmus abundans PKUAC 12用于进一步的生物量和乙醇生产分析。比较三种培养模式（静止、振荡和通气），通气培养获得的生物量生产率最高，M每天每升培养基产生0.09 g和0.11 g干重。在PKUAC 9和S. abundans PKUAC 12。通过FTIR监测的碳水化合物积累表明，早期稳定期是生物量收获的最佳时期。微藻生物质被成功地用作发酵生产生物乙醇的碳水化合物原料。S.当用稀酸处理和纤维素酶组合预处理时，abundans PKUAC 12是用于生物乙醇生产的优良上级原料。(c)2012爱思唯尔有限公司保留所有权利。
This study describes identification, cultivation, monitoring of carbohydrate accumulation and bioethanol production from microalgal strains from the coastal waters of Pearl River Delta. Eighteen identified strains belong to the families Chlorellaceae, Scotiellocystoidaceae, Neochloridaceae, Selenastraceae and Scenedesmaceae. Of isolated strains Mychonastes afer PKUAC 9 and Scenedesmus abundans PKUAC 12 were selected for further biomass and ethanol production analysis. Comparison of three cultivation modes (stationary, shaken and aerated) resulted in the highest biomass productivity obtained for aerated cultures that yielded 0.09 g and 0.11 g dry weight per day per litre of medium for M. afer PKUAC 9 and S. abundans PKUAC 12, respectively. Carbohydrate accumulation monitored by FTIR showed that early stationary phase is optimal for biomass harvest. Microalgal biomass was successfully used as a carbohydrate feedstock for fermentative bioethanol production. S. abundans PKUAC 12 was superior feedstock for bioethanol production when pre-treated with the combination of dilute acid treatment and cellulase. (c) 2012 Elsevier Ltd. All rights reserved.