Antioxidant Activity of Soybean Oil Containing 4-Vinylsyringol Obtained from Decarboxylated Sinapic Acid

作者：Wang Xiang Yu; Yang Dan; Zhang Hua; Jia Cai Hua; Shin Jung Ah; Hong Soon Taek; Lee Yong Hwa; Jang Young Seok; Lee Ki Teak^*

来源：Journal of the American Oil Chemists' Society, 2014, 91(9): 1543-1550.

DOI：10.1007/s11746-014-2492-4

• H-1 NMR
• 4-Vinylsyringol
• Decarboxylation
• Sinapic acid
• Oxidative

4-Vinylsyringol was produced by decarboxylation from sinapic acid. To evaluate the antioxidant activity of 4-vinylsyringol, 500 ppm of 4-vinylsyringol, sinapic acid, or alpha-tocopherol was added to soybean oil and the oxidation processes were monitored by the peroxide value (PV), the thiobarbituric acid reactive substances value (TBARS) assay, and H-1-NMR spectroscopy. The results obtained by PV and TBARS indicated that soybean oil containing 4-vinylsyringol (SBO-VS) showed the highest oxidative stability. H-1-NMR analysis also showed concurring results. After 19 days of oxidation, the degradation rates of linoleic acid (4.2 %) and linolenic acid (4.4 %) in SBO-VS were significantly lower than those in other oils. Secondary oxidation products (i.e. aldehydes) were undetectable in SBO-VS by H-1 NMR, whereas concentrations of such compounds in soybean oils containing alpha-tocopherol or sinapic acid were 38.0 +/- A 0.4 and 2.75 +/- A 0.2 mM oil, respectively. In addition, synergistic antioxidant effect between any two antioxidants was not observed.

• 出版日期2014-9
• 单位延边大学