National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The study was conducted to develop carrot based antioxidant rich RTS beverages with and without added preservative stored at different temperatures (refrigeration, ambient and accelerated). The antioxidant rich RTS beverages were developed by using carrot, beetroot, aonla and ginger juice blends in the different proportion i.e. 100:0:0:0, 80:15:2.5:2.5 (T1), 70:25:2.5:2.5 (T2), 60:35:2.5:2.5 (T3) and 50:45:2.5:2.5 (T4) respectively, adjusted 20% juice, 15% TSS and 0.3% acidity at the time of preparation. The carrot based RTS beverages were assessed for the quality attributes at zero day and stored to assess the antioxidant stability of RTS beverages during storage. The RTS beverages treated with and without preservative were evaluated for chemical properties (TSS, pH, acidity and total antioxidant activity) at the interval of 15 days up to 3 months of storage. It was observed that TSS and acidity were increased slightly but non-significantly (from 14.48 to 14.49°Brix) and (from 14.48 to 14.55°Brix), respectively of treatments containing preservative and no preservatives during storage at refrigeration temperature. At ambient temperature, the carrot based RTS beverages resulted non-significant increase in TSS (from 14.48 to 14.74 Brix) and (from 14.48 to 14.75 Brix), respectively of treatments containing preservative and of treatments having no preservatives at the end of storage. At refrigeration, antioxidant activity was significantly (P≤0.05) decreased from 39.50 to 32.55% and 39.04 to 30.60% in RTS beverages containing preservative and without preservatives, respectively whereas from 39.50 to 30.77% and 39.04 to 27.47%, respectively at ambient temperature during three months of storage. It was inferred that chemical attributes of the RTS beverages stored at accelerated temperature were destroyed within 15 days of storage and are not safe for the consumption. The RTS beverages were found most acceptable chemically when stored at refrigeration temperature as compared to ambient temperature and are recommended for commercial production.
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