Evaluation of diverse biochemical stimulants to enhance growth, lipid and docosahexaenoic acid (DHA) production of Aurantiochytrium Sp. ATCC PRA-276

被引：5
|
作者：
Hussain, Syed Ammar [1 ]
Sarker, Majher I. [1 ]
Yosief, Hailemichael O. [1 ]
Yadav, Madhav P. [1 ]
机构：
[1] USDA ARS, Eastern Reg Res Ctr, Sustainable Biofuels & Co Prod Res Unit, 600 E Mermaid Lane, Wyndmoor, PA 19038 USA
来源：
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY | 2021年 / 36卷
关键词：
Aurantiochytrium sp; Biochemical stimulants; Functional lipids; Docosahexaenoic acid (DHA); POLYUNSATURATED FATTY-ACIDS; ACCUMULATION; MICROALGA; BIOMASS; 1-METHYLCYCLOPROPENE; IDENTIFICATION; PHYTOHORMONES; METABOLISM; N-3;
D O I：
10.1016/j.bcab.2021.102122
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
In the current investigation, the efficacy of five different biochemical stimulants; 2-phenylacetic acid (PAA), humic acid (HA), spermidine (SPD), 1-methylcyclopropene (1-MCP), and ferric chlorides (FC), as potential stimulant in augmenting the growth/biomass, lipid and docosahexaenoic acid (DHA) production of Aurantiochytrium sp. ATCC PRA-276 were elucidated. After 120 h of cultivation, the individual supplementation of PAA, HA, SPD, 1-MCP, and FC, elevates the biomass, total lipid and DHA production of Aurantiochytrium sp. ATCC PRA-276 by 32%-76%, 23%-34%, and 53%-86% in comparison to the control, respectively. The highest biomass and DHA productivities was observed with the supplementation of PAA and FC achieving 76% and 67% and 86% and 66%, compared to the control, respectively. PAA supplementation may have increased biomass production by reducing the lag period and extending the log phase. While only a marginal increment on biomass and DHA contents of Aurantiochytrium sp. ATCC PRA-276 was observed with the supplementation of 1-MCP. This study suggests the potential application of biochemical stimulants for improved growth, lipid and DHA productivities of Aurantiochytrium sp. ATCC PRA-276.
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页数：5
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