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EVALUATION OF MUSKMELON (Cucumis melo L.) VARIETIES FOR PREPARATION OF AN ALCOHOLIC BEVERAGE

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Title EVALUATION OF MUSKMELON (Cucumis melo L.) VARIETIES FOR PREPARATION OF AN ALCOHOLIC BEVERAGE
 
Creator Jyoti Bala
 
Subject biological phenomena
extraction
 
Description Three cultivars of Muskmelon (Cucumis melo L.) (cv. Punjab Sunheri, Punjab Hybrid
and Hara Madhu) were evaluated for preparation of their alcoholic beverage. Muskmelon
juice was optimized for pre-fermentative sterilization using combination of KMS (0.1% v/v)
+Pasteurization which revealed decrease of more than 98.5% of fungal and 99% of bacterial
counts. Prefermentative enzymatic treatment of muskmelon juice (50 units/100ml pectinase)
resulted in 73.44±0.261, 31.61±0.791 and 59.04±2.04% clarification in case of Punjab
Sunheri, Punjab Hybrid and Hara Madhu, respectively in 6 h of incubation at 45°C and thus
Punjab Sunheri was selected for fermentation experiments. The ethanolic fermentation of
muskmelon juice was optimized for fermentation parameters using Response Surface
Methodology (RSM). The ethanolic fermentation carried out under the optimized conditions
i.e. temperature (20°C), Sugar concentration (15°B), Inoculum size (6.25% v/v) and DAHP
(0.15% w/v) by Saccharomyces cerevisae strain 35 in 3 days of fermentation produced 9.2%
(v/v) of ethanol. The supplementation of Juice with additional sugar revealed 21°B as
optimum which produced 12.8% (v/v) of ethanol in 5 days of fermentation at 5L scale. Post
fermentative storage of wine (at 10°C) for 60 days revealed absence of yeast count after 30
days, significant decrease in ethanol and phenols, total and Free SO2 of 102.4 and 10.24
ppm , respectively at 60 days of storage. The qualitative analysis of wine carried out by Thin
Layer Chromatography revealed the presence of histidine, arginine, lysine, proline/ threonine,
methionine/ alanine/ valine/ tyrosine and tryptophan. Sensory analysis of the mature wine (at
60 days) on the basis of Modified Davis Score Card by 7 panelists reflected a mean score
60.1±5.84 and was categorized as of standard quality
 
Date 2017-01-03T15:37:10Z
2017-01-03T15:37:10Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94221
 
Language en
 
Format application/pdf
 
Publisher Punjab Agricultural University