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Physico-chemical Characterization, Profiling of Total Lipids and Triacylglycerol Molecular Species of Omega-3 Fatty Acid Rich B. arvensis Seed Oil from India.

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Relation http://ir.cftri.com/13952/
https://dx.doi.org/10.5650/jos.ess18219
 
Title Physico-chemical Characterization, Profiling of Total
Lipids and Triacylglycerol Molecular Species of Omega-3
Fatty Acid Rich B. arvensis Seed Oil from India.
 
Creator Prasad, P.
Savyasachi, S.
Prasanna Anjaneya Reddy, Lebaka
Sreedhar, R. V.
 
Subject 11 Lipid Biochemistry
01 Oilseeds
 
Description Buglossoides arvensis is indigenous to India and its seed oil is rich in unique and nutritionally
important omega-3 fatty acid namely, stearidonic acid (SDA). It is a non-conventional oil seed plant and
needs to be agronomically adapt for commercial utilization. In the present study, oil extracted from the
agronomically adapted high yielding cultivar of B. arvensis seeds was analyzed for its oil content, fatty acid
(FA) composition, physico-chemical characteristics, total lipids and triacylglycerol molecular species. The
oil content, peroxide, acid, iodine, p-anisidine values and tocopherol content of the oil were 18.53% (w/w),
2.06 meq of active oxygen / kg of oil, 2.55 mg KOH/g oil, 217.2 g I2/100g oil, 10.7 and 774.8 mg/kg oil
respectively. Oxidative stability as determined by the induction period was found to be 3.1 h.
Polyunsaturated fatty acid (PUFA) content of the oil was 81.3% (of total FA), comprising of α-linolenic acid
(ALA; 48.5%), SDA (18.6%), linoleic acid (LA; 10.3%) and γ-linolenic acid (GLA; 3.9%). Profiling of lipid
classes showed neutral lipids (89.3%, w/w) as most abundant lipid class followed by glycolipids (7.4%, w/w)
and phospholipids (3.3%, w/w). High resolution mass spectrometric analysis of triacylglycerol (TAG)
molecular species showed TAGs with C54 carbons in the acyl chain as most abundant. Positional
distribution analysis showed GLA and SDA predominantly at the sn-2 position of triacylglycerol. FTIR
analysis revealed common characteristics molecular features similar to PUFA rich oils. Overall, the results
suggest that B. arvensis seed oil is an excellent ω3-ω6-ω3 or ALA-SDA-GLA source for food and
nutraceutical industries.
 
Date 2019
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/13952/1/Journal%20of%20Oleo%20Science%202019.pdf
Prasad, P. and Savyasachi, S. and Prasanna Anjaneya Reddy, Lebaka and Sreedhar, R. V. (2019) Physico-chemical Characterization, Profiling of Total Lipids and Triacylglycerol Molecular Species of Omega-3 Fatty Acid Rich B. arvensis Seed Oil from India. Journal of Oleo Science, 68 (3). pp. 209-223.