Study on fatty acids composition of <i>Pinna nobilis</i> species collected in the coastal areas of Phan Rang Bay and South Binh Thuan, Vietnam

Thi Phuong Ly Dang; Thi Kim Dung Dao; Thi Nga Nguyen; Thi Minh Tuyet Dang; Thu Trang Ngo; Thi Thu Huong Trinh; Tuan Anh Luu; Valeriia Petrovna Grigorchuk; Quoc Long Pham

doi:10.15625/1859-3097/22217

Author affiliations

Authors

Dang Thi Phuong Ly Institute of Chemistry, VAST, Vietnam; Graduate University of Science and Technology, VAST, Vietnam
Dao Thi Kim Dung Institute of Chemistry, VAST, Vietnam
Nguyen Thi Nga Institute of Chemistry, VAST, Vietnam
Dang Thi Minh Tuyet Institute of Chemistry, VAST, Vietnam
Ngo Thu Trang Vietnam National University of Agriculture, Hanoi, Vietnam
Trinh Thi Thu Huong Institute of Chemistry, VAST, Vietnam; Graduate University of Science and Technology, VAST, Vietnam
Luu Tuan Anh Institute of Chemistry, VAST, Vietnam
Valeriia Petrovna Grigorchuk National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russian Federation
Pham Quoc Long Institute of Chemistry, VAST, Vietnam

DOI:

https://doi.org/10.15625/1859-3097/22217

Keywords:

Pinna nobilis, fatty acids, Phan Rang Bay, South Binh Thuan

Abstract

The fatty acid composition of Pinna nobilis samples collected from Phan Rang Bay and South Binh Thuan, Vietnam, was investigated. A total of 40 fatty acids, with chain lengths ranging from C14 to C24, were identified across the samples. The fatty acid profiles exhibited notable diversity, comprising saturated fatty acids (SFAs), branched-chain saturated fatty acids, monounsaturated fatty acids (MUFAs), and polyunsaturated fatty acids (PUFAs). SFAs accounted for 39.09% of the total fatty acids in the P. nobilis sample from Phan Rang Bay, compared to only 7.50% in the South Binh Thuan sample. The MUFA contents were 7.95% and 13.58%, respectively. Notably, the PUFA content was markedly higher in the South Binh Thuan sample (77.48%) than in the Phan Rang Bay sample (43.73%). The predominant fatty acids included 16:0, 18:1n-7, 18:1n-9, 16:1n-9, eicosapentaenoic acid (EPA, 20:5n-3), docosahexaenoic acid (DHA, 22:6n-3), and arachidonic acid (AA, 20:4n-6). Among these, DHA was the most abundant fatty acid in both samples, representing 16.39% and 29.30%, respectively. The total omega-3 (n-3) fatty acid content ranged from 22.89% to 51.07%, while the omega-6 (n-6) fatty acid content ranged from 20.84% to 26.41%, yielding favorable n-3/n-6 ratios of 1.10 and 1.93. These findings indicate that P. nobilis from these regions is a highly nutritious marine resource rich in essential fatty acids with an optimal n-3/n-6 ratio. Consequently, it holds significant economic value and high potential for future commercial exploitation and functional food development.

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