A Study on Incorporation of Natural Antioxidants For the Shelf Life Extension of Ghee

摘要

Natural antioxidants were extracted through aqueous and alcoholic methods from Psidium guajava (guava) leaves and incorporated in ghee for shelf life extension. Total antioxidant content of guava leaves powder, alcoholic and aqueous extract were 51.56. 63.67 and 91.21 respectively. 0.25% and 1% were optimized levels for alcoholic and aqueous extract respectively. optimized alcoholic and aqueous extract treatment samples packed in glass bottles and stored at 60±2oC for 2 months and evaluated for 10 days interval. Both extract treatments were superior in Peroxide value, TBA, free fatty acids value and RSA then control thus Guava leaves extract could be used as potential natural antioxidants.Guava leaves extracts can be used as potential natural antioxidants to retard auto-oxidation in ghee.