PROCESS PROTOCOL FOR THE DEVELOPMENT OF HILL LEMON READY TO SERVE (RTS) BEVERAGES
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Date
2024-01-03
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UHF,NAUNI
Abstract
The present studies entitled "Process protocol for the development of Hill lemon Ready to
Serve (RTS) beverages" was conducted in 2022-23 at Dr. Y S Parmar University of Horticulture and
Forestry, Solan, HP. The study aimed to prepare RTS beverages from Hill lemon juice from both Hill
lemon fruit with peel and without peel, separately. Peel extract was also utilized to prepare Hill lemon
juice and peel extract blended RTS beverages. Extraction of Hill lemon juice from fruit (with & without
peel) was optimized on the basis of sensory and physical characteristics in which screw type extractor
and hydraulic press were selected, respectively, whereas aqueous peel extract was extracted by using
optimized 1:3 ratio of grated Hill lemon peel and water at extraction temperature of 80°C for 15
minutes among all the tried 36 pre-treatments. For the preparation of RTS beverages, six beverages
were made using two kind of sweeteners i.e. sulphur free sugar and mixed floral honey in which 6 per
cent concentration of Hill lemon juice (without peel) for honey and sugar based Hill lemon RTS and 8
per cent of Hill lemon juice (with peel) for honey and sugar-based Hill lemon RTS were optimized on
the basis of best sensory characteristics and desirable acidity. Hill lemon juice and peel extract blended
RTS for sugar based drinks were prepared by using 4 per cent of peel extract, while for honey based
drinks, 5 per cent extract was used and mixed with 6 per cent of Hill lemon juice (without peel) to
prepare blended beverages. Honey based Hill lemon juice and peel extract blended RTS had the highest
ascorbic acid, antioxidant activity, and mineral content, whereas sugar-based Hill lemon juice and peel
extract blended RTS scored best as per sensory evaluation with an overall acceptability rating of 7.53.
Despite minor declines in physical, chemical and sensory aspects, all treatments met acceptable
standards for RTS beverages. Hill lemon RTS beverages can be stored safely for four months with
limited or non-significant alteration in quality. In conclusion, Hill lemon fruit, which is underutilized,
can be used to prepare high quality and functionally enriched beverages at cost-effective price.