Double-high in palmitic and oleic acids accumulation in a non-model green microalga, Messastrum gracile SE-MC4 under nitrate-repletion and -starvation cultivations

被引：22

作者：

Afifudeen, Che-Lah Wan ^{[2
,3
]}

Loh, Saw Hong ^{[1
,2
]}

Aziz, Ahmad ^{[1
,2
]}

Takahashi, Kazutaka ^{[4
]}

Effendy, Abd Wahid Mohd ^{[2
,3
]}

Cha, Thye San ^{[1
,2
,3
]}

机构：

[1] Univ Malaysia Terengganu, Fac Sci & Marine Environm, Terengganu 21030, Malaysia

[2] Univ Malaysia Terengganu, Cent Lab Complex, Satreps Cosmos Lab, Terengganu 21030, Malaysia

[3] Univ Malaysia Terengganu, Inst Marine Biotechnol, Terengganu 21030, Malaysia

[4] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Aquat Biosci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan

来源：

SCIENTIFIC REPORTS | 2021年 / 11卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1038/s41598-020-79711-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Bioprospecting for biodiesel potential in microalgae primarily involves a few model species of microalgae and rarely on non-model microalgae species. Therefore, the present study determined changes in physiology, oil accumulation, fatty acid composition and biodiesel properties of a non-model microalga Messastrum gracile SE-MC4 in response to 12 continuous days of nitrate-starve (NS) and nitrate-replete (NR) conditions respectively. Under NS, the highest oil content (57.9%) was achieved despite reductions in chlorophyll content, biomass productivity and lipid productivity. However, under both NS and NR, palmitic acid and oleic acid remained as dominant fatty acids thus suggesting high potential of M. gracile for biodiesel feedstock consideration. Biodiesel properties analysis returned high values of cetane number (CN 61.9-64.4) and degree of unsaturation (DU 45.3-57.4) in both treatments. The current findings show the possibility of a non-model microalga to inherit superior ability over model species in oil accumulation for biodiesel development.

引用

页数：14

共 53 条

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[2]

Anne-marie K., 2019, APPL BIOCHEM BIOTECH, V28, P1

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