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Characterization of Chlorella sorokiniana growth properties in monosaccharide-supplemented batch culture. 2018

Shuaijie Chai, and Jianan Shi, and Teng Huang, and Yalu Guo, and Jian Wei, and Meicen Guo, and Liyun Li, and Shijuan Dou, and Lijuan Liu, and Guozhen Liu
Institute of Bioenergy, Hebei Agricultural University, Baoding, Hebei Province, China.

To reveal growth properties of Chlorella sorokiniana UTEX 1230, four monosaccharides (glucose, fructose, galactose and xylose) were individually supplemented into medium as carbon sources for the cultivation of C. sorokiniana UTEX 1230. Supplementation with glucose increased OD750, biomass and lipid yield but decreased protein abundance per unit dry weight of biomass under all concentrations examined, the maximum OD750, biomass and lipid yield increased 2.04, 6.78 and 12.43 times, respectively, compared with autotrophic controls. A low concentration of glucose (<4 g/L) simultaneously promoted the biosynthesis of chlorophylls and protein abundance per unit culture volume, but decreased the lipid content per unit dry weight of biomass and all supplemented glucose can be exhausted within 7 days. Higher glucose concentrations (≥4 g/L) decreased the biosynthesis of chlorophylls and protein abundance per unit culture volume, but increased the lipid content per unit dry weight of biomass. In glucose supplemented scenario, C. sorokiniana UTEX 1230 growth was light-independent. Supplementation with fructose promoted C. sorokiniana UTEX 1230 growth to a much lesser extent compared with glucose, whereas supplementation with galactose had no effect and supplementation with xylose even inhibited growth. Our findings represent basic experimental data on the effect of monosaccharides and can serve as the basis for a robust cultivation system to increase biomass and lipid yield.

UI MeSH Term Description Entries
D008027 Light That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range. Light, Visible,Photoradiation,Radiation, Visible,Visible Radiation,Photoradiations,Radiations, Visible,Visible Light,Visible Radiations
D008055 Lipids A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed) Lipid
D009005 Monosaccharides Single chain carbohydrates that are the most basic units of CARBOHYDRATES. They are typically colorless crystalline substances with a sweet taste and have the same general formula CnH2nOn. Monosaccharide,Simple Sugar,Simple Sugars,Sugar, Simple,Sugars, Simple
D009584 Nitrogen An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D002244 Carbon A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous
D002708 Chlorella Nonmotile unicellular green algae potentially valuable as a source of high-grade protein and B-complex vitamins. Chlorellas
D005947 Glucose A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement. Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D061249 Batch Cell Culture Techniques Methods for cultivation of cells, usually on a large-scale, in a closed system for the purpose of producing cells or cellular products to harvest. Batch Culture Techniques,Batch Culture,Continuous Batch Culture,Fed Batch Culture Techniques,Fed-Batch Culture,Fed-Batch Culture Techniques,Shake-Flask Culture,Batch Culture Technique,Batch Culture, Continuous,Batch Cultures,Batch Cultures, Continuous,Continuous Batch Cultures,Culture Technique, Batch,Culture Technique, Fed-Batch,Culture Techniques, Batch,Culture Techniques, Fed-Batch,Culture, Batch,Culture, Continuous Batch,Culture, Fed-Batch,Culture, Shake-Flask,Cultures, Batch,Cultures, Continuous Batch,Cultures, Fed-Batch,Cultures, Shake-Flask,Fed Batch Culture,Fed-Batch Culture Technique,Fed-Batch Cultures,Shake Flask Culture,Shake-Flask Cultures,Technique, Batch Culture,Technique, Fed-Batch Culture,Techniques, Batch Culture,Techniques, Fed-Batch Culture

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