Food Waste Fermentation to Fumaric Acid by Rhizopus arrhizus RH7-13 |
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| Authors: | Huan Liu Jingyuan Ma Meng Wang Weinan Wang Li Deng Kaili Nie Xuemin Yue Fang Wang Tianwei Tan |
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| Affiliation: | 1.Beijing Bioprocess Key Laboratory,College of Life Science and Technology, Beijing University of Chemical Technology,Beijing,People’s Republic of China;2.State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing,People’s Republic of China |
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| Abstract: | Fumaric acid as a four-carbon unsaturated dicarboxylic acid is widely used in the food and chemical industries. Food waste (FW), rich in carbohydrates and protein, is a promising potential feedstock for renewable bio-based chemicals. In this research, we investigated the capability of Rhizopus arrhizus RH7-13 in producing fumaric acid from FW. The liquid fraction of the FW (L-FW) was proven to be the best seed culture medium in our research. When it was however used to be fermentation medium, the yield of fumaric acid reached 32.68 g/L, at a volumetric production of 0.34 g/L h. The solid fraction of FW mixed with water (S-FW) could also be used as fermentation medium when a certain amount of glucose was added, and the yield of fumaric acid reached 31.26 g/L. The results indicated that both fractions of FW could be well utilized in fermentation process and it could replace a part of common carbon, nitrogen, and nutrient. The process has an application potential since reducing the costs of raw materials. |
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