• 동아시아식생활학회지
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• 제20권4호
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• pp.531-535
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• 2010

This study investigated the effects of different commercial yeast strains on the characteristics of peach wine. Peach fruit was inoculated with Fermivin, K1-V1116, EC-1118, D-47 and AR2. Peach wines fermented with the D-47, K1-V1116, and AR2 strains showed faster fermentation than wines fermented with the other strains. Wine fermented with EC-1118 had the lowest titratable acidity and highest pH. The ethanol content of wines fermented with different commercial yeast strains was in the range of 13~14%. In sensory evaluation, the wine made with EC-1118 showed the highest overall scores in color and acceptability.

• 한국식품영양과학회지
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• 제38권12호
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• pp.1740-1745
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• 2009

본 연구에서는 한국에서 시판되고 있는 14종의 포도주를 포도주 생산 연도별(2003, 2006, 2007), 포도 품종별(Malbec, Carmenere, Merlot, Syrah, Cabernet Sauvignon, Chardonnay), 포도주 생산 지역별(남아프리카 공화국, 아르헨티나, 호주, 미국, 칠레)로 준비하여 각 포도주의 resveratrol 함량을 HPLC로 분석하였다. 분석을 통하여 동일 회사, 동종 포도주라도 연도에 따라서 resveratrol 함량이 다르고, 같은 품종이라도 지역에 따라, 같은 자연환경이라도 품종에 따라 resveratrol 함량의 차이를 확인하고자 하였다. 그리고 포도주 생산 연도별(2003, 2006, 2007), 포도주를 제조할 때 사용한 포도 품종별(Malbec, Carmenere, Merlot, Syrah, Cabernet Sauvignon, Chardonnay), 포도주를 생산한 나라별(남아프리카 공화국, 아르헨티나, 호주, 미국, 칠레)로 관능평가를 실시하여 resveratrol 함량이 포도주에서 향(나무냄새, 페놀향), 맛(떫은맛), 색(붉은색, 황금색), 수렴성(쓴맛)과 무게감 등에 영향을 주는지 알아보고자 하였다. 연구결과, 대부분의 적포도주는 resveratrol 평균 함량 0.2-5.8 mg/L 범주에 있었고, 백포도주는 대부분의 적포도주보다 낮은 함량으로 확인되었다. Resveratrol 함량의 분석 결과와 관능평가를 비교한 결과 phenol 화합물의 한 종류인 resveratrol 함량이 높을 수록 관능평가의 점수도 평균적으로 높이 평가되었다. 14종의 포도주를 관능평가에서 백포도주는 대부분의 적포도주 보다 모든 항목에서 낮은 점수를 얻었고, 적포도주는 껍질이 두껍고 씨가 굵고 많은 품종일수록 관능평가의 각 항목에서 평균적으로 높은 점수로 평가되었다. Resveratrol를 포함하는 포도주의 각종 phenol 화합물 성분은 포도껍질에 많이 존재하며, 포도주 제조 시 발효로 생성된 에탄올에 의하여 포도주에 용출되어, 적포도주는 백포도주보다 그 함량이 많고, 일반적으로 포도주는 1700-1900 mg/L의 농도를 가지고 있는데, 본 연구 결과 resveratrol 농도 비례관계에 있는 phenol계 물질들은 주로 적포도주에서 붉은 색깔과 씁쓸하고 텁텁한 맛의 평가에 영향을 주고, 포도주의 숙성에 많은 영향을 미칠 뿐 아니라 포도주의 향중 나무 냄새, 페놀 향에 영향을 주며, 수렴성과 무게감 등 관능평가에 긍정적인 영향을 주는 것으로 확인되었다.

• 동아시아식생활학회지
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• 제17권2호
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• pp.234-241
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• 2007

The aim of this study was to investigate the effects of the addition of red wine of pork patties during frozen storage on their water holding capacity, thawing loss, cooking loss, diameter change, thickness change, surface color, pH, VBN (volatile basic nitrogen) and TBARS (2-thiobarbituric acid reactive substances). Four types of pork patty were prepared; pork patty without red wine (control), and with the addition of 1%, 3% and 5% red wine (RWP-1, 3 -and t respectively). The pork patties were stored for 5 months at $-20^{\circ}C$. The water holding capacity was significantly decreased during frozen storage, which was not influenced by the addition of red wine (p<0.05). The thawing loss and cooking loss were significantly increased during frozen storage, which also was not influenced by the addition of red wine (p<0.05). There were no significant differences in the diameter and thickness changes during frozen storage, which was not influenced by the addition of red wine (p<0.05). There were no significant differences in the $L^*\;and\;b^*$ values, but the a value was significantly decreased during frozen storage. The $L^*,\;a^*\;and\;b^*$ values of the pork patties containing red wine were lower than those of the control patties (p<0.05). There were no significant differences in the pH and VBN content during the frozen storage period or on the addition of red wine to the patties. The TBARS value of the pork patties tended to increased with increasing in frozen storage period, but were decreased with increasing amount of red wine addition (p<0.05).

• 한국식품영양학회지
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• 제31권5호
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• pp.696-702
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• 2018

This study investigated the quality characteristics of jujube wines produced from various fruits (Campbell Early, aronia, apply). Before the preparation of jujube wine, jujube juice was extracted using hot water ($100^{\circ}C$, 2 hr). Different blends of jujube wines were produced by blending jujube juice with various fruits using Saccharomyces cerevisiae. After 18 days of fermentation, the alcohol content of jujube wines ranged between 11.5~12.7%. The pH of the wine ranged from 3.31 to 3.53 and the total acid content from 0.47 to 0.68%. The hue value of jujube wines ranged from 0.88 to 2.21 and the color intensity ranged from 0.93 to 6.29. The brightness of jujube wines ranged from 32.35 to 92.47, the redness from 0.85 to 59.05, and the yellowness from 17.35 to 51.02. By combining aronia with jujube juice, a significant increase in the total polyphenol content and the antioxidant activity (the DPPH radical scavenging activity) of the wine was observed. The total polyphenol content (401.77 mg%) and the antioxidant activity (76.29%) were the highest in the jujube wine blended with aronia. The total anthocyanin content of jujube wines ranged from 81.66 to 135.98 mg% and the tannic acid content from 42.48 to 316.36 mg%. Based on the results of the present study, we suggest that jujube wine produced by blending jujube juice with aronia had excellent quality as well as quality characteristics of the wine.

• 한국식품영양학회지
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• 제34권5호
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• pp.516-525
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• 2021

In this study, vin chaud were manufactured with eight types of vin chaud-bomb containing different amounts of ingredients, and Campbell Early wine. Samples were analyzed for pH, total acidity, volatile acidity, ethanol content, total polyphenol, and anthocyanins, and radical scavenging activities for antioxidant effect. Based on the results of this study the pH of the samples ranged from 3.34 to 3.41 and the total acidity of wines ranged from 0.55 to 1.00%. The alcohol contents of the vin chaud samples ranged from 3.8~5.8% to and the color intensity of the vin chaud samples was higher than that of the wine. Total polyphenol content was 145.90~262.98 mg% and the tannin content of the C-1 (236.90 mg%) was the highest among the samples. The ABTS and DPPH radical scavenging activity of the samples were 57.39~75.10% and 63.71~80.00% respectively. α-Glucosidase inhibitory activity ranged from 21.54 to 33.49%, on the other hand, wine was not detected and tyrosinase inhibitory activity had the highest values (39.26%) in the C-1 sample. The findings of the present study provide insightful scientific information on vin chaud, and forms a basis for further innovations in the food and wine industry.

• Journal of the Optical Society of Korea
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• 제7권4호
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• pp.234-239
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• 2003

Objective methods to assess quantitatively port wine stain (PWS) blanching in response to laser therapy are needed to improve laser therapeutic outcome. Previous studies have attempted to assess objectively PWS color based on point measurement devices. To date, these approaches have typically been limited by a number of factors such as small test area and need for contact. To address these issues, a polarization spectral imaging system and an image analysis method have been developed to evaluate quantitatively erythema and melanin content distribution in skin. The developed polarization spectral imaging system minimizes artifacts such as glaring, shadowing, and non-uniform illumination that interfere with image fidelity. Furthermore, the image analysis method has been employed to get images of skin melanin and erythema indices from the acquired color images for quantitative analysis. Finally, using PWS patient color image, the effectiveness in laser treatment of PWS was evaluated by calculating relative erythema index image that is the relative erythema index of PWS region to the normal region. The developed device and analysis method appears to be a simple and effective method for quantitative analysis of PWS blanching.

• 한국식품과학회지
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• 제40권2호
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• pp.201-206
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• 2008

쌀에 더덕을 각각 0, 10, 20, 30% 첨가하여 제조한 더덕 약주의 이화학적, 관능적 및 항산화 특성의 변화를 조사하였다. 더덕첨가량의 증가에 따라 pH는 감소되었고 총산의 함량은 증가된 것으로 나타났다. 총당의 함량은 더덕 첨가량의 증가에 따라 증가하였고 알코올 함량은 감소하였다. 색도 중 L값은 더덕 첨가량의 증가에 따른 변화가 없었으나 a와 b값은 증가한 것으로 나타났다. DPPH 자유라디칼 소거 활성은 더덕 첨가 시 증가된 것으로 나타났다. 관능검사 결과 전체적 기호도에서 20% 더덕을 첨가하여 제조한 약주가 제일 우수한 것으로 나타났다. 이화학적,관능적 및 항산화 특성으로 보아 20% 더덕을 첨가하여 약주를 제조하는 것이 적합하다고 생각된다.

• Journal of Applied Biological Chemistry
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• 제49권4호
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• pp.125-130
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• 2006

In order to utilize non-commercial melon as alcoholic beverage material, in this study the optimum fermentation method and manufacture conditions were investigated and thereafter the properties of final product were determined. As for melon wine made with only melon juice, sensorial properties, particularly flavor, were not acceptable as alcoholic beverage. To improve the lack of melon wine, we made mash with cooked rice and Nuruk, and then added melon juice during fermentation. Acceptable sensorial properties were obtained in melon wine when 30% extract juice of oriental melon was added after 4 day of fermentation. The alcoholic beverage added melon juice showed much higher yellowness value than that without melon juice indicating that a clear yellow color similar to melon was actually observed in final product. Adding melon juice led little changes in amount and composition of free sugars, organic acids and amino acids and could improve sensorial properties.

• 한국미생물·생명공학회지
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• 제37권4호
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• pp.413-415
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• 2009

To develop a new traditional rice wine by using Gardenia jasminoides, various fermentation methods such as without cooking, with cooking and with starter seed methods were studied. The condition of alcohol fermentation was investigated by addition of 1% Gardenia jasminoides into mash. Among the fermented methods, the fermentation with starter seed was the best as the alcohol was 19%. The acceptability of the Gardenia jasminoides rice wine with different methods were compared. The starter seed method which was prepared by adding 1% Gardenia jasminoides into mash showed the best acceptability in the sensory evaluation test and color test.

• 한국균학회지
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• 제5권1호
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• pp.27-31
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• 1977

In brewing of apple wine, the effect of maceration of Ralls apple to apple juice quantity and apple wine taste were studied. The results are summerized as follow; 1. The yield of juice was increased by the maceration but maceration decreased acid contents in juice by the action of the enzymes in apple tissues. 2. The quality of apple wine produced from maceration of fresh pulp was found to be equeal or superior to those obtained from none-macereration treatment. 3. During fermentation period, no significant difference in mash components (alcohol, sugar content, acid, pH and color) existed among treatments.