Lipids, fatty acids and hydroxy-fatty acids of Euphausia pacifica

被引：18

作者：

Yamada, Hidetoshi ^{[1
]}

Yamazaki, Yuya ^{[2
]}

Koike, Seiji ^{[2
]}

Hakozaki, Mayuka ^{[1
]}

Nagahora, Nozomi ^{[1
]}

Yuki, Sayaka ^{[1
]}

Yano, Akira ^{[1
]}

Tsurumi, Koichiro ^{[3
]}

Okumura, Takuji ^{[4
]}

机构：

[1] Iwate Biotechnol Res Ctr, 22-174-4 Narita, Kitakami, Iwate 0240003, Japan

[2] ADEKA Corp, Life Sci Mat Lab, 7-2-34 Higashiogu, Tokyo 1168553, Japan

[3] Hachinohe Gakuin Univ, 13-98 Mihono, Hachinohe, Aomori 0318588, Japan

[4] Japan Fisheries Res & Educ Agcy, Natl Res Inst Aquaculture, 422-1 Nakatsuhamaura, Minamiise, Mie 5160193, Japan

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

日本科学技术振兴机构;

关键词：

KRILL OIL; IDENTIFICATION;

D O I：

10.1038/s41598-017-09637-9

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：

Euphausia pacifica is a good candidate for a resource of marine n-3 PUFA. However, few reports exist of the lipid and fatty acid composition of E. pacifica. To examine the potential of E. pacifica as a resource of marine n-3 PUFA, we analyzed E. pacifica oil. We extracted lipids from E. pacifica harvested from the Pacific Ocean near Sanriku, Japan. Lipid classes of E. pacifica oil were analyzed by TLC-FID and the fatty acid composition of the oil was analyzed by GC/MS. Free fatty acids and hydroxy-fatty acids were analyzed by LC/QTOFMS. The lipid content of E. pacifica ranged from 1.30% to 3.57%. The ratios of triacylglycerols, phosphatidylcholine, phosphatidylethanolamine and free fatty acids in E. pacifica lipids were 5.3-23.0%, 32.6-53.4%, 8.5-25.4% and 2.5-7.0%, respectively. The content of n-3 PUFA in E. pacifica lipids was 38.6-46.5%. We also showed that E. pacifica contains unusual fatty acids and derivatives: C16-PUFAs (9,12-hexadecadienoic acid, 6,9,12-hexadecatrienoic acid and 6,9,12,15-hexadecatetraenoic acid) and hydroxy-PUFAs (8-HETE and 10-HDoHE). E. pacifica is a good resource of marine n-3 PUFA. Moreover, E. pacifica can provide C16-PUFA and hydroxy-PUFAs.

引用

页数：10

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