将食物垃圾回收作为小球藻培养中的营养物质。
Recycling of food waste as nutrients in Chlorella vulgaris cultivation.
机构信息
School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
出版信息
Bioresour Technol. 2014 Oct;170:144-151. doi: 10.1016/j.biortech.2014.07.096. Epub 2014 Aug 1.
Heterotrophic cultivation of Chlorella vulgaris was investigated in food waste hydrolysate. The highest exponential growth rate in terms of biomass of 0.8day(-1) was obtained in a hydrolysate consisting of 17.9gL(-1) glucose, 0.1gL(-1) free amino nitrogen, 0.3gL(-1) phosphate and 4.8mgL(-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 0.9g biomass was produced per gram glucose consumed. The microalgal biomass produced in nutrient sufficient batch cultures consisted of around 400mgg(-1) carbohydrates, 200mgg(-1) proteins and 200mgg(-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.
研究了在食物废物水解物中培养小球藻的异养培养。在含有 17.9gL(-1)葡萄糖、0.1gL(-1)游离氨基酸氮、0.3gL(-1)磷酸盐和 4.8mgL(-1)硝酸盐的水解物中，小球藻的生物量以 0.8 天(-1)的最高指数增长率生长，而在浓度较高的水解物中，生长速度降低。小球藻利用从食物废物中回收的营养物质形成生物量，每消耗 1 克葡萄糖可产生 0.9 克生物量。在营养充足的分批培养中生产的微藻生物质含有约 400mgg(-1)碳水化合物、200mgg(-1)蛋白质和 200mgg(-1)脂质。来自食物废物的营养物质的转化和平衡的生物质组成使小球藻成为在食品、饲料和燃料生产中回收食物废物的有前途的菌株。
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