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Enhancing Haematococcus pluvialis biomass and γ-aminobutyric acid accumulation by two-step cultivation and salt supplementation by Wei Ding; Jing Cui; Yongteng Zhao; Benyong Han; Tao Li; Peng Zhao; Jun-Wei Xu; Xuya Yu is a Engineering article available to read on EtoBox.
What is Enhancing Haematococcus pluvialis biomass and γ-aminobutyric acid accumulation by two-step cultivation and salt supplementation about?
The primary goal of this study was to assess the roles of chemical factors and bioprocess strategies on a mixotrophic culture of the microalga Haematococcus pluvialis during γ-aminobutyric acid (GABA) production. A two-stage strategy was used to increase the biomass and GABA accumulation of H. pluvialis. In stage I, mixotrophic growth of H. pluvialis in the presence of fulvic acid (FA) produced a high biomass (1.84 g L) with a GABA content of 25.45 mg g. Furthermore, a maximum GABA content of 38.57 mg g was obtained when cells were cultured with 0.4 g L NaCl under photoautotrophic conditions in stage II, whereas the carbohydrate content of cells sharply decreased from 26.68 to 18.22%. In addition, salt stress upregulated the expression of the gad and cam genes. The results of this study demonstrate an efficient strategy to produce GABA from the microalga H. pluvialis.
Who reads Enhancing Haematococcus pluvialis biomass and γ-aminobutyric acid accumulation by two-step cultivation and salt supplementation?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Wei Ding; Jing Cui; Yongteng Zhao; Benyong Han; Tao Li; Peng Zhao; Jun-Wei Xu; Xuya Yu
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0960-8524)
- Published
- 2019
- Language
- EN
- Field
- Engineering (Physical Sciences)