Journal
BIORESOURCE TECHNOLOGY
Volume 152, Issue -, Pages 471-476Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.11.047
Keywords
Monosodium glutamate wastewater; Mixotrophic cultivation; Chlorella vulgaris; Specific growth rate; Biochemical composition
Funding
- Natural Science Foundation of China [51078221]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-12-0341]
- Science and Technology Development Planning of Shandong Province [2012GGE27027]
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Monosodium glutamate wastewater (MSGW) is a potential medium for microbial cultivation because of containing abundant organic nutrient. This paper seeks to evaluate the feasibility of growing Chlorella vulgaris with MSGW and assess the influence of MSGW concentration on the biomass productivity and biochemical compositions. The MSGW diluted in different concentrations was prepared for microalga cultivation. C. vulgaris growth was greatly promoted with MSGW compared with the inorganic BG11 medium. C. vulgaris obtained the maximum biomass concentration (1.02 g/L) and biomass productivity (61.47 mg/L d) with 100-time diluted MSGW. The harvested biomass was rich in protein (36.01-50.64%) and low in lipid (13.47-25.4%) and carbohydrate (8.94-20.1%). The protein nutritional quality and unsaturated fatty acids content of algal increased significantly with diluted MSGW. These results indicated that the MSGW is a feasible alternative for mass cultivation of C. vulgaris. (C) 2013 Elsevier Ltd. All rights reserved.
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