• Title/Summary/Keyword: wine quality

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Manufacture and Quality Characteristics of Wild Grape Wine (머루 발효주의 제조 및 품질 특성)

  • Cho, Chang-Ho;Song, Jung-Hwa;Lee, Eun-Na;Lee, Jong-Soo
    • The Journal of Natural Sciences
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    • v.19 no.1
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    • pp.37-44
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    • 2008
  • To develop a new functional wine, manufacture and quality characteristics of wild grape wine were investigated. Ethanol contents of wild grape wine was 11.0%, and total acidity and volatile acid content were 0.63% and 0.0402%, respectively. Antioxidant activity of the wild grape wine which is related in anti-aging functionality, was 41.6%. From this results, we concluded that the wild grape wine is a high valuable wine.

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Study on The Wine Mini-bar Design Using Chinese 卍 Shape Window-pattern (중국의 전통 만(卍)자 문창살이 적용된 와인장 디자인 연구)

  • Cai, Quan;Kim, Chung-Ho
    • Journal of the Korea Furniture Society
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    • v.28 no.1
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    • pp.47-52
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    • 2017
  • With the rapid economical and technological progress in China, the demand for wine increased tremendously along with the need for wine storage furniture and wine related products. Although demand for furniture increased, consumers' emotional need toward high quality design product has not been met properly. As the quality of people's life improves, they pursue better materials providing them with higher mental satisfaction. To meet the specific demand of Chinese market stated above, the direction of this report is set as to study pattern elements of Chinese traditional lattice and combine them with wine storage furniture design and crafting, which is originated from western culture. By doing that, the study is aimed to suggest a new direction of Chinese modern design and to improve the fundamental notion of Chinese furniture design. Although wine and wine racks are from western world, the wine mini-bar designed in this study stands out for its beauty and taste of eastern culture. It not only fits perfectly to the habits and taste of wine lovers, but also goes very well with fusion style interior design trend in modern China. The furniture carries the charm of eastern cultural tradition and elegance of modern furniture design in one.

Qualitative Characteristics of Fermentation Periods in Muscat of Alexandria Wine Having Different Fermentation·Maceration Periods (발효·침용 기간을 달리한 Muscat of Alexandria 와인의 발효 기간별 품질 특성)

  • Park, Hyejin;Park, Eunha;Shin, Hyerim;Park, Eui Kwang;Choi, Sungyeol;Kim, Min-Ja
    • The Korean Journal of Food And Nutrition
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    • v.34 no.6
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    • pp.621-630
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    • 2021
  • In this study, we attempted to compare the maceration processes in the white wine made of Muscat of Alexandria grape having different the fermentation· maceration periods. These wine were sampled and analyzed by fermentation periods. The pH of wines ranged from 3.25 to 3.27 and the total acidity of wines ranged from 0.85~0.91% (w/v) on the 12th day of fermentation period. The ethanol concentration in these wines increased during the alcoholic fermentation period, on the other hand, the soluble solid concentrations (°Brix) decreased. The b value (yellowness) of Muscat of Alexandria wine was the highest at 8.31 in C treatment, which is a wine with a long maceration period, and B (7.19) and A (5.27) were significantly decreased as the maceration period was shorter. The total polyphenol and tannin content of wine increased with the period of maceration. Total polyphenol and tannin contents had the highest values (64.20 and 67.11 mg%, respectively) in the C treatment, which is a wine with a long maceration period on the 12th day of fermentation period. The physiological activities of Alexandria wine were highest level in the treatment with a long maceration period. As a result, this study provides useful scientific information that quality characteristics and physiological activities in white wine.

Manufacturing of Wine with Korean Figs(Ficus carica L.) and Quality Improvement by Adding Fig Leaves (국내산 무화과를 이용한 와인 제조 및 품질 개선 효과)

  • Jeong Mi-Ran;Cha Jeong-Dan;Yun Sun-Il;Han Jong-Hyeun;Lee Young-Eun
    • Journal of the East Asian Society of Dietary Life
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    • v.15 no.1
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    • pp.112-118
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    • 2005
  • Fig(Ficus carica L.) which belongs to Moraceae family has been used as digestion promoter, cure for ulcerative inflammation and eruption in Korea. Figs have very short preservation period and can be kept only 1 week even in the refrigeration system. The possibility of wine-making from Korean figs was tested by analyzing the fermentation characteristics, proximate analysis and free sugar contents of wine made of slices with 20% sugar addition. Ethanol fermentation of the figs by Saccharomyces cerevisiae was done rapidly. The ethanol contents, pH, total acidity and sugar content were 12.1%, 3.91, 0.42% and 9.9 °Brix, respectively. The results from the sensory evaluation were as follows. The wine made from the sliced figs were better than that from fig juices in their sensory scores. The wine made with frozen figs was not different from that made with fresh ones. To improve the quality of wine, the addition of dried leaf powder in the concentration of 100 ppm were tried and found it was superior to the one made without leaf.

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Structural Relationships between Online Wine Store Quality, Trust, and Perceived Risk (온라인 와인 매장 품질, 신뢰와 지각된 위험간의 구조적 관계)

  • Kim, Yoo-Jung;Kang, Sora;Hang, Soo-Jin
    • Journal of Digital Convergence
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    • v.11 no.12
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    • pp.169-183
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    • 2013
  • As the issue of selling wine online has been raised in an attempt to implement FTA programs in a more effective way, wine will be available online in the near future in Korea. Thus, this study aimed at identifying key factors which will contribute to reduce various kinds of risks perceived by online customers, and investigating the structural relationships between those factors and perceived risks. Site quality of online wine shop(information quality, system quality), trust in online wine shop were selected as key predictors of perceived risks and research model was established using those factors. Data were collected from those who have experienced in using online wine store, and the research model was tested using valid data. Results of testing research hypotheses using data from survey respondents showed that information and system quality exerted an impact on trust in online wine shop. It was proven that information and system quality posited an impact on time risk whereas they was not related to performance and psychological risk. In addition, trust in online wine shop was shown to be related to time risk, performance risk, and psychological risk.

Aging Effect of Red Wine on the Quality Properties and Sensory Score of Cooked Seasoned Pork (가열 양념돈육의 품질 및 기호성에 미치는 적포도주 숙성효과)

  • Park, Kyung-Sook;Lee, Kyung-Soo;Choi, Young-Jun;Park, Hyun-Suk;Moon, Yoon-Hee;Jung, In-Chul
    • Korean journal of food and cookery science
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    • v.27 no.3
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    • pp.95-104
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    • 2011
  • This study was conducted to investigate the effect of red wine on the quality properties and sensory score of seasoned pork meat. Pork meat was treated with 25% water (control), 20% water and 5% red wine (RW5), 15% water and 10% red wine (RW10), or 10% water and 15% red wine (RW15). The moisture, crude protein, crude fat, $L^*$ value, springiness, cohesiveness, gumminess, chewiness, and VBN content were not significantly different among the samples. Cooking yield, moisture retention, and fat retention were significantly higher in the RW5, RW10, and RW15 (p < 0.05) compared to those in the control. The $a^*$ value of RW5 was the highest among the samples, and the $b^*$ value increased significantly in the control and RW5 (p < 0.05). The hardness of the control was the highest among all samples (p < 0.05). The pH was significantly lower in RW5, RW10 and RW15 (p < 0.05) compared to that in the control. The TBARS value and total bacteria were significantly lower in RW5, RW10, and RW15 (p < 0.05) compared to those in the control. Adding red wine altered the fatty acid and free amino acid of cooked seasoned pork. These results suggest the possibility that red wine could be used an additive to improve the quality of cooked seasoned pork.

The Effects of Skin Contact Time and Suspended Solid on The White Wine Quality (Skin Contact와 Suspended Solid가 백포도주 품질에 미치는 영향)

  • Rho, Tae-Uk;Kim, Chanjo;Sung, Chang;Moon, Youngja;Kim, Bong-Nan;Oh, Manjin
    • Korean Journal of Agricultural Science
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    • v.24 no.2
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    • pp.290-297
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    • 1997
  • Danored is considered as the most favorable grape variety for national wine manufacturing in terms of sugar, organic acid contents, annual production amount, as well as quality control convenience after harvest. This study was canied out to know the influence of suspended solid(SS) and skin contact time(SCT) with Danored variety on the white wine quality. The results are summarized as follows; 1. Suspended solid and skin contact time did not greatly influence on the chemical composition of Danored juice. But skin contact time provided slightly increaseness to the content of phenol compounds 2. Suspended solid accelerated fermentation rate of white wine manufacturing. Although the content of suspended solid are less amount than 0.3% in must, wine fermentation was completed to dryness in concentration of sugar. 3. When the content of suspended solid was around 3%, higher alcohol in white wine was increased by the 20%. This result is relatively small increasement compared to the other reported results. 4. Because Danored contained less amount of phenol compounds comparison with other grape varieties, browning capacity in white wine was much favorable to quite low concentration. Especially, phenolic compounds was decreased remarkably as one of fermentation characteristics of Danored variety. 5. As a result of sensory evaluation, wine quality was A-1> B-1> A-2> B-2 in its favorable ranking orders. It was so concluded that A-1 might be the most acceptable one from this study.

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Physicochemical Characteristics Based on Fining and Filtering of Muscat Bailey A Grape Wine (Muscat Bailey A 품종 포도주의 청징과 여과에 따른 이화학적 특성)

  • Bang, Byung-Ho;Paik, Jean Kyung;Lee, Seung-Wook;Jeong, Eun-Ja;Rhee, Moon-Soo;Yi, Dong-Heui
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.11
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    • pp.1687-1692
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    • 2015
  • Since the domestic grape wine industry has been stagnant, the quality of Korean wine must be improved to compete with imported wines. For improving the quality of domestic wine up to 'unfined' or 'unfiltered' wine, this study investigated the possibility of producing 'unfined' or 'unfiltered' wine and their physicochemical characteristics. Muscat Bailey A as a domestic grape was selected to make wine. Prior to refining process after alcohol fermentation, the wine samples were divided into three specimens depending on the treatment of bentonite for clarification and filter (sample A treated with both bentonite and filter, sample B treated with bentonite only, and sample C treated without bentonite and filter). The physicochemical characteristics of each specimen after one week matureness were then investigated. Sample C showed highest values in total phenol and organic acid content among others. Samples B and C showed more stability in intensity, hue, and color. Although it is hard to compare domestic wine with imported wine, it may be possible to improve the quality of domestic wine and contribute to the development of the domestic wine industry when further studies are conducted on in-depth fermentation of wine and improvement of microbiological stability.

Effect on Wine Quality of Pre-treatment of Grapes prior to Alcohol Fermentation (포도주 품질에 미치는 알코올 발효전 포도 전처리 효과)

  • Chang, Eun-Ha;Jeong, Seok-Tae;Roh, Jeong-Ho;Yun, Hae-Keun;Park, Kyo-Sun;Choi, Jong-Uck
    • Food Science and Preservation
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    • v.15 no.6
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    • pp.824-831
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    • 2008
  • This study was conducted to determine the influence of heating and carbonic maceration (CM) pre-treatments prior to alcohol fermentation on wine quality from the main Korean grape variety, Campbell Early. Wine fermented with CM treatment had lower total acidity than control and heated wines. Wine fermented with heat treatment contained higher concentrations of anthocyanin and tannin than control wines, while CM-treated wine had the lowest concentrations. The red coloration of the wine was highly correlated with the polyphenol content, as a high content of anthocyanin and tannin resulted in increased red color intensity. The significant differences found in wine quality as a consequence of the use of pre-treatment techniques (heating and CM treatments) suggest their potential application in wine making.

Quality Characteristics of Korean Domestic Commercial Meoru Wines (국산 시판 머루 와인의 품질 특성)

  • Park, Hyejin;Park, Jung-Mi;Han, Bongtae;Choi, Wonil;Noh, Jaegwan
    • The Korean Journal of Food And Nutrition
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    • v.31 no.5
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    • pp.703-711
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    • 2018
  • This study was carried out to investigate quality characteristics of Korean domestic commercial meoru wines, 8 kinds of wines were purchased from the Korea Wine Festival in 2016 and we compared the characteristics and physiological activity of 8 domestic wine. The results of this study have shown that the alcohol contents of wines ranged from 9.8 to 14.3%, pH of wines ranged from 3.86 to 4.22 and the total acidity of wines ranged from 0.56~0.75%. The hue value of meoru wines ranged from 0.81 to 1.02, The brightness of meoru wines ranged from 0.77 to 5.55, the redness from 3.97 to 31.16, and the yellowness from 0.99 to 5.63. The organic acid analysis of wine revealed lactic acid content at 4.281~9.606 mg/mL, followed by malic acid, tartaric acid, and acetic acid. The concentrations of total polyphenol and anthocyanin contents in the samples were investigated by spectrophotometric methods. Total polyphenol contents of the M8 (172.24 mg%) wine was higher than those of the other wines and total anthocyanin contents represented from 356.69 to 601.33 mg/mL. The DPPH radical scavenging activity of meoru wines was between 57.23 to 73.98%. Volatile flavor component analysis of meoru wines identified 7 alcohols, 16 esters, 5 acids, 3 terpenes and 4 other compounds.