Abstract
Factors like variety, rootstock, bunch and berry parameters, growing conditions, and biochemical constituents of juice affect adaptability of particular grape variety by the growers. In the present study, grape varieties grown at Pune were evaluated for physico, chemical and sensory quality characteristics. Maximum bunch weight (455.2 g) was noted in Hy 23-14-23 followed by Medika and Pusa Navrang. Hy 23-14-23 was also noted for highest values of berries per bunch (72), 50 berry weight (175 g) and berry length (16.50 mm). However, maximum juice recovery (73%) was found in Bangalore Purple × Gulabi followed by Country Bangalore. The juice of Pusa Navrang was noted with maximum TSS followed by Country Bangalore and Medika. Total acid content in grape juice from different varieties varied from 6.3 g/L in Medika to 9.4 g/L in Bangalore Purple × Gulabi. Minimum volatile acidity was noted in Medika (0.01 g/L) which shows more microbial stability. Maximum phenolics were estimated in juice of Arka Shyam followed by Medika. Based on organoleptic studies, Arka Shyam was highly acceptable followed by Medika. Considering yield, bunch and berry parameters, juice recovery, biochemical and nutritional parameters of juices and score obtained during organoleptic study, Medika was found better than other varieties.
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More From: Proceedings of the National Academy of Sciences, India Section B: Biological Sciences
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