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Article

Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam

1
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
2
Thai Nguyen University of Agriculture and Forestry, Thai Nguyen 24118, Vietnam
3
Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
4
NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
5
Center of Excellence for Biochemistry and Natural Products, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
6
Working Group for Lipid Research, Department of Safety and Quality of Cereals, Max Rubner-Institut, 76131 Karlsruhe, Germany
*
Authors to whom correspondence should be addressed.
Processes 2020, 8(5), 542; https://doi.org/10.3390/pr8050542
Received: 3 March 2020 / Revised: 19 April 2020 / Accepted: 21 April 2020 / Published: 5 May 2020
This research aimed to investigate the chemical composition of seed oils extracted from three Vietnamese Dalbergia species (D. tonkinensis, D. mammosa, and D. entadoides). The fatty acid profiles and contents of tocopherols and sterols of the seed oils, and total phenolic compounds extracted from the fresh seeds were characterized using different methods. Among the examined samples, D. tonkinensis seed oils showed high contents of linoleic acid (64.7%), whereas in D. mammosa, oleic acid (51.2%) was predominant. In addition, α- and γ-tocopherol and β-sitosterol were major ingredients in the seed oils, whereas ferulic acid and rosmarinic acid are usually predominant in the seeds of these species. Regarding sterol composition, the D. entadoides seed oil figured for remarkably high content of Δ5,23-stigmastadienol (1735 mg/kg) and Δ7-stigmastenol (1298 mg/kg). In addition, extracts with methanol/water (80:20, v/v) of seeds displayed significant in vitro antioxidant activity which was determined by DPPH free radical scavenging assay. View Full-Text
Keywords: Dalbergia species; DPPH free radical scavenging assay; fatty acid; phytosterol; tocopherol; total phenolic compound composition Dalbergia species; DPPH free radical scavenging assay; fatty acid; phytosterol; tocopherol; total phenolic compound composition
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MDPI and ACS Style

Nguyen, T.T.; Doan, L.P.; Trinh Thi, T.H.; Tran, H.H.; Pham, Q.L.; Pham Thi, H.H.; Bach, L.G.; Matthäus, B.; Tran, Q.T. Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam. Processes 2020, 8, 542. https://doi.org/10.3390/pr8050542

AMA Style

Nguyen TT, Doan LP, Trinh Thi TH, Tran HH, Pham QL, Pham Thi HH, Bach LG, Matthäus B, Tran QT. Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam. Processes. 2020; 8(5):542. https://doi.org/10.3390/pr8050542

Chicago/Turabian Style

Nguyen, Thi T., Lan P. Doan, Thu H. Trinh Thi, Hong H. Tran, Quoc L. Pham, Hai H. Pham Thi, Long G. Bach, Bertrand Matthäus, and Quoc T. Tran 2020. "Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam" Processes 8, no. 5: 542. https://doi.org/10.3390/pr8050542

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