Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
680455 | Bioresource Technology | 2014 | 8 Pages |
Abstract
Heterotrophic cultivation of Chlorella vulgaris was investigated in food waste hydrolysate. The highest exponential growth rate in terms of biomass of 0.8 dayâ1 was obtained in a hydrolysate consisting of 17.9 g Lâ1 glucose, 0.1 g Lâ1 free amino nitrogen, 0.3 g Lâ1 phosphate and 4.8 mg Lâ1 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 gâ1 carbohydrates, 200 mg gâ1 proteins and 200 mg gâ1 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.
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Authors
Kin Yan Lau, Daniel Pleissner, Carol Sze Ki Lin,