Blue-Red LED wavelength shifting strategy for enhancing beta-carotene production from halotolerant microalga, Dunaliella salina

被引：49

作者：

Han, Sang-Il ^{[1
]}

Kim, Sok ^{[1
]}

Lee, Changsu ^{[2
]}

Choi, Yoon-E ^{[1
]}

机构：

[1] Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea

[2] World Inst Kimchi, Microbiol & Funct Res Grp, Gwangju 61755, South Korea

来源：

JOURNAL OF MICROBIOLOGY | 2019年 / 57卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Dunaliella salina; beta-carotene; light-emitting diode; wavelength shift; adaptive laboratory evolution; FATTY-ACID-METABOLISM; ENHANCEMENT;

D O I：

10.1007/s12275-019-8420-4

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

In the present study, to improve the photosynthetic betacarotene productivity of Dunaliella salina, a blue-red LED wavelength-shifting system (B-R system) was investigated. Dunaliella salina under the B-R system showed enhanced density and beta-carotene productivity compared to D. salina cultivated under single light-emitting diode light wavelengths (blue, white, and red light-emitting diode). Additionally, we developed blue light-adapted D. salina (ALE-D. salina) using an adaptive laboratory evolution (ALE) approach. In combination with the B-R system applied to ALE-D. salina (ALE B-R system), the beta-carotene concentration (33.94 +/- 0.52 M) was enhanced by 19.7% compared to that observed for the non-ALE-treated wild-type of D. salina (intact D. salina) under the B-R system (28.34 +/- 0.24 M).

引用

页码：101 / 106

页数：6

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