Polydatin-fatty acid conjugates are effective antioxidants for stabilizing omega 3-containing bulk fish oil and fish oil emulsions

Food Chemistry
Taiwo Olusesan AkanbiColin James Barrow

Abstract

Candida antarctica lipase B-catalysed synthesis of lipophilic esters of polydatin was investigated along with their antioxidant activities. The effects of synthesis parameters such as solvent, substrate molar ratio, enzyme concentration, addition of molecular sieves, reaction temperature and time on the production of ester were studied and optimised. The highest production of esters was obtained with acetone as the reaction solvent. The antioxidant activities of the esters were compared with those of commercial butylated hydroxytoluene (BHT) and α-tocopherol. All polydatin esters inhibited the oxidative destruction of β-carotene more effectively than did BHT and α-tocopherol. Results of thiobarbituric acid tests showed that in bulk fish oil, all esters were more effective than α-tocopherol at 2 mmol/kg concentration but were not as effective as BHT. In fish oil-emulsions, all esters were more effective than both BHT and α-tocopherol at 2 mmol/kg concentration. The synthesized polydatin esters are promising antioxidants for oil/fat-based foods.

Citations

Oct 1, 2020·Journal of Food Biochemistry·Taiwo O AkanbiDominic Agyei
Jan 21, 2020·European Journal of Pharmacology·Michał JóźwiakMarta Struga
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Daniela Soto-MadridSilvia Matiacevich
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Selene Yadira Gonzalez Toledo, Jianping Wu
Oct 28, 2021·Journal of Agricultural and Food Chemistry·Haixia XuGuanglei Zhao

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