期刊
BIORESOURCE TECHNOLOGY
卷 170, 期 -, 页码 144-151出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.07.096
关键词
Lipids; Fatty acids; Waste utilization; Nutrient recovery; Food waste hydrolysate
资金
- Innovation and Technology Commission in Hong Kong [ITS/353/12]
Heterotrophic cultivation of Chlorella vulgaris was investigated in food waste hydrolysate. The highest exponential growth rate in terms of biomass of 0.8 day(-1) was obtained in a hydrolysate consisting of 17.9 g L-1 glucose, 0.1 g L-1 free amino nitrogen, 0.3 g L-1 phosphate and 4.8 mg L-1 nitrate, while the growth rate was reduced in higher concentrated hydrolysates. C. vulgaris utilized the nutrients recovered from food waste for the formation of biomass and 0.9 g biomass was produced per gram glucose consumed. The microalgal biomass produced in nutrient sufficient batch cultures consisted of around 400 mg g(-1) carbohydrates, 200 mg g(-1) proteins and 200 mg g(-1) lipids. The conversion of nutrients derived from food waste and the balanced biomass composition make C. vulgaris a promising strain for the recycling of food waste in food, feed and fuel productions. (C) 2014 Elsevier Ltd. All rights reserved.
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