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KMID : 0613820220320110847
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Journal of Life Science
2022 Volume.32 No. 11 p.847 ~ p.854
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Quality Properties Depending on Aging of Deabong Persimmon-fermented Liquor
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Cho Kwang-Keun
Gal Sang-Won
Lee Sang-Won
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Abstract
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The purpose of this study was to prepare Daebong persimmon-fermented liquor supplemented with Prunus mume fruit to promote the consumption of Daebong persimmon and to develop local specialties. As fermentation progressed, the alcohol content rapidly increased, whereas the sugar content decreased. With the production of CO2 from the second day of fermentation, the epidermis and flesh solids of the Daebong persimmons began mixing together and rose to the surface of the fermentation container. This phenomenon continued until the fourth and fifth days of fermentation; on the fifth
day, the ethanol and sugar contents were 11.4% and 9.8°Brix, respectively. A concentration of 6 to 9% (w/w) P. mume fruit was found to be the optimal amount during Daebong persimmon fermentation. When the fermented liquor was stored for 60 days at 5℃, the pH and ethanol content showed no significant change during the aging period. As aging progressed, the content of sugar slowly decreased in both the control sample and in the one to which P. mume was added, showing
9.8 and 10.4 mg/ml at the eighth week post-aging, respectively. The total acid content was 0.79~0.81% at the beginning of aging but slightly increased to 0.84~0.86% in the second week of aging. As a result of the sensory test, the sour taste, sweetness, and flavor were slightly stronger in the P. mume fruit group than in the control group.
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KEYWORD
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Aging period, alcohol fermentation, Daebong persimmon, P. mume fruit
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