జర్నల్ ఆఫ్ న్యూట్రిషన్ & ఫుడ్ సైన్సెస్
అందరికి ప్రవేశం

నైరూప్య

Development and Quality Evaluation of RTS (Ready to Serve) Beverages Made from Traditional Indian Medicinal Plants

Harsha Hirdyani

Kinnow juice, Basil extract, ginger and sugar syrup were optimized and blended to form a RTS beverage which was pasteurized at 90°C for 25 sec cooled and stored at refrigerated temperature 5°C for 20 days. Physic-chemical and sensory analysis was done. Marginal changes in pH, total soluble solids, acidity, vitamin C and antioxidant content were observed. The TSS increased during the storage period and was reported to be increased by 2.5°Brix. Addition of basil extract and ginger to know juice greatly increased the antioxidant potential of the juice and also Vitamin C. Vitamin C, pH and subsequently acidity decreased as the storage time increased. Ascorbic acid content was reported to decrease by 10-14 mg/100 gm in all the RTS (Ready to Serve) beverages. The antioxidant potential gradually decreased during the storage period from 54.2 in 10% to 60.1 in 25% RTS. The mean overall acceptability scores of more than 8 for beverage samples up to 20% basil extract incorporation indicated the commercial scope for manufacturing good and nutritious RTS beverage, which will also be helpful in providing good antioxidant and nutraceuticals potential to the consumer. Heat pasteurisation (90°C for 25 sec) and basil and ginger extract were more effective for inactivating the microbial flora. However the shelf life of the RTS was established within 10 days, after this the acceptability decreased. The product is recommended children, youth and elderly persons to be used within 10 days.