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publication name Grape Seed Extract as Natural Antioxidant and Antibacterial in Minced Beef
Authors Reham, A. Amin, Shimaa, N. Edris
year 2017
keywords Natural Antioxidant, Antioxidant Activity, Lipid Oxidation, Antibacterial Activity, BHT, Grape Seed Extract
journal PSM Biological Research
volume 2
issue 2
pages 89-96
publisher Pakistan Science Mission
Local/International International
Paper Link Not Available
Full paper download
Supplementary materials Not Available
Abstract

This study aimed to investigate the effect of grape seed extract (GSE) on sensory attributes, delaying lipid oxidation and bacterial growth in raw fresh minced beef during refrigerated storage at 4°C for 10 days. In addition, a synthetic antioxidant (BHT 0.01%) and a control group were used, thus there were five groups of minced beef: Control, BHT 0.01%, GSE 50, GSE200 and GSE1000. Overall acceptability, pH and total bacterial counts (TBC) of the control and treated minced beef samples were determined every 48 hr s during refrigerated storage. Development in lipid oxidation was measured by thiobarbituric acid -reactive substances (TBARs) and antioxidant activity (AOA %). Scores of overall acceptability of all treated minced beef samples were more acceptable than untreated controls. GSE reduced pH values significantly (p GSE50 > BHT > Control. Our findings suggest that grape seeds, as a natural agro-waste, could be very effective in extending shelf life and delaying lipid oxidation of minced beef during chilling without affecting sensory attributes, providing the consumer with more healthf ul food containing a natural antioxidant and antibacterial additive, as an alternative to synthetic additives.

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