• Title/Summary/Keyword: white wine

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Comparison of Quality Characteristics of 'Cheonghyang' Wine fermented with Different Commercial Yeasts (시판 효모의 종류를 달리하여 제조한 '청향' 와인의 품질 특성)

  • Lee, Hyo-Young;Lee, Ha-Yeon;Kwon, Hye-Jeong;Park, Ji-Seon;Ahn, Moon-Sub;Jeong, Seok-Tae;Yi, Jae-Hyoung
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.6
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    • pp.543-549
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    • 2016
  • The objective of this study was to investigate quality properties of 'Cheonghyang' wine using different commercial yeast strains. Soluble solid content, pH level and total acidity of 'Cheonghyang' grape were $20^{\circ}Bx$, pH 3.5 and 0.66%, respectively. Total acidity ranged from 0.91~1.06% in the middle stage of fermentation and decreased to 0.77~0.82% when alcoholic fermentation finished. Alcohol content in wines ranged from 12.5% to 12.9% showing no significant difference in yeast strains. Wine fermented with Red Fruit had high volatile acid content (189.0 mg/L) whereas wine fermented with Fermivin indicated low volatile acid content (77.7 mg/L). Wines made with Montrachet, Fermivin and Aroma White had low brightness (L-value) compared to others. Results from sensory evaluation demonstrated that commercial wine yeasts, Montrachet and Fermivin, can be applied to improve sensory properties of 'Cheonghyang' wine such as aroma, acidity and transperency. On the other hand, preferences of wine fermented with EC-1118 strain containing lots of tannins and total polyphenols were significantly reduced.

Quality Properties of Wines Fermented with Domestic New Different Grapes (국내산 양조용 신품종으로 제조한 포도주의 품질특성)

  • Yook, Cheol;Seo, Myeong-Hyeon;Lee, Jae-Wung;Kim, Young-Ho;Lee, Ki-Yeol
    • Korean Journal of Food Science and Technology
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    • v.40 no.6
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    • pp.633-642
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    • 2008
  • Several domestic new varieties of grapes were utilized for the fermentation of wines, including Cabernet Sauvignon, NY 21576, Canner, SV 18315, Agawan, and Black Bagal red wines, and Naples, Aligote, and Alicante white wines. The oBx values of the grapes ranged between 17 and $20^{\circ}Bx$. Soluble solid content was adjusted to $21^{\circ}Bx$ by adding sugar for all grapes and fermented at $20^{\circ}C$ for 2 weeks. Black Bagal and Cabernet Sauvignon were relatively slower than other grapes with regard to alcohol production rate. The L value of wine made from Agawan and NY 21576 were lower and darker than those of wines prepared from other grapes. Wine made from NY 21576 grapes had a polyphenol concentration of 1.40 mg/mL, which was higher than that of any other wine, whereas wines made from MBA and all white wines evidenced value of only 0.55 mg/mL and 0.15 mg/mL, respectively, after 2 weeks of fermentation. The sensory evaluations demonstrated that the quality of red wines made from NY 21576, Cabernet Sauvignon, Black Bagal, and that of white wines made from Naples grapes were favorable among the different grape variants.

Wine, Madness and Bad Blood: Re-Reading Imperialism in Jane Eyre (포도주, 광기 그리고 나쁜 피 -『제인 에어』 속 제국주의 다시 읽기)

  • Kim, Kyoung-sook
    • Journal of English Language & Literature
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    • v.57 no.2
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    • pp.339-365
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    • 2011
  • Charlotte $Bront{\ddot{e}}^{\prime}s$ novel Jane Eyre has long been doted on as one of the canonized texts of British literature since its publication. Seemingly, this romantic novel has nothing to do with plantation based on slave trade. However, paying a keen attention to the fact that Jane's enormous inheritance results from wine plantation at a colony, this essay re-interprets Bertha's drinking and madness as evidence of imperialism. For the porter/jin Bertha and Grace Poole enjoy might have some suspicious connection with wine, the very root of Jane's great expectations. Jean Ryes' Wide Sargasso Sea, writing Jane Eyre back, records Bertha as "a white resident of the West Indies, a colonizer of European descent" (326). However, Jane Eyre, in my interpretation, describes Bertha pretty much as a black Creole. At any rate, the view that the white West Indians are tainted by miscegenation proves contemporary racism and is reflected in the text through Bertha and her mother's intemperate drinking and madness. Drinking and madness are stigmatized as the evidence of the so-called "bad blood"; embodying the stereotypes of drinking, madness, and sexual corruption, Creoles, the very inescapable product of imperialism, provide a convenient excuse for justifying imperialism for purity, civilization, and moral cleanness. In this way, Jane Eyre needs to be re-interpreted politically and historically in the context of colonialism. British imperialism pursues a tremendous amount of profits through grape plantation and wine trades; however, it cleverly leaves in the colony the associated images such as intemperate drinking and madness. Bertha, transferred from Jamaica to Britain, takes in these negative images of "savageness." Transcending the narrow confines of feminist criticism obsessed with doubling between Bertha and Jane, this essay, accordingly, reads Bertha the prisoner in the attic as the captive for perpetuating imperialism. This reading hinges upon interpreting Rochester and St John as colonizers bearing the so-called "white men's burden" to cultivate and civilize savages much like crops such as grapes and sugarcane in the colonial plantation.

Quality Characteristics of Radish Pickle added with Different Amounts of White Wine (백포도주 첨가량에 따른 무 피클의 품질특성)

  • Kim, Ki-Bbeum;An, Dong-Gi;Hwang, Su-Young;Nam, Jung-Suk;Choi, Soo-Keun
    • Culinary science and hospitality research
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    • v.21 no.4
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    • pp.72-85
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    • 2015
  • This study was conducted to examine the quality characteristics of radish pickle added with different amounts of white wine (0, 3.75, 7.24, 10.48, and 13.50%), stored for 0, 1, 2, 3, and 4 weeks. The sugar content of the pickle solution decreased significantly(p<0.001) as the concentration of white wine increased, and decreased significantly(p<0.001) as the period of storage lengthened. The pH value of the pickle solution increased significantly(p<0.001) as the concentration levels of white wine rose. And a period storage decreased significantly(p<0.001) during the period of storage from week 0 to week 4 [makes no sense; recommend deletion]. The L-value of the solution increased significantly(p<0.001) with increasing concentrations of white wine, while the a-value and b-value both decreased. In addition, the L-value of radish pickle decreased significantly(p<0.001) as white wine concentrations increased, while the a-value and b-value increased. The hardness of the radish pickle increased significantly(p<0.001) when white wine concentrations were increased after 1 week. Hardness decreased significantly(p<0.001) during the period of storage. According to the results of sensory tests, appearance, taste, and overall preference were higher in the 30% additional sample[I can't find what this refers to]. These results are expected to be useful in producing radish pickle of optimal quality and to contribute to the development of various foods and the advancement of the food industry.

A Study on Preferences of Watermelon-Wine Manufactured with Different Kinds of Yeasts and Different Starting Sugar Contents (효모와 초기 당도를 달리하여 개발한 수박 양조주의 기호도에 관한 연구)

  • Byun, Ji-Sub;Lee, Kyung-Hee;Ha, Tae-Youl
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.4
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    • pp.547-553
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    • 2008
  • The principal objective of this study was to prepare watermelon wine with watermelon juice. For the manufacture of watermelon wine, we determined the contents of starting sugar content ($20^{\circ}Brix$, $25^{\circ}Brix$, $30^{\circ}Brix$, $35^{\circ}Brix$) and three different kinds of yeasts (EC-1118, K1-V1116, D-47). The main additives of the watermelon wine included $K_2S_2O_5$, $NH_4H_2PO_4$, bentonite, yeasts, sugar, mixed acid, and $C_6H_8O_2$. The watermelon wine was fermented at $15^{\circ}C$ until the remaining alcohol content was 5%. We assessed customers' preference regarding the manufactured watermelon wine via sensory evaluation. Three yeasts were shown to result in significantly different alcohol fermentation, among which K2-V1116 was selected for the preparation of the watermelon wine. In our sensory evaluation, the preference of the starting sugar contents was highest in the watermelon wine with $25^{\circ}Brix$ of sugar content. The preference of alcohol content was found to be higher in the watermelon wines prepared with sugar contents of 5% and 7%. The preference test between watermelon wines and purchased white wines demonstrated that the watermelon wine with an alcohol content of 5% was the most preferred wine, and the Chilean Late Harvest wine was the second most preferred.

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Phenolics Content and Browning Capacity during the White Winemaking (백포도주 양조중 페놀류의 함량과 갈변도)

  • Song, Dong-Hun;Kim, Chan-Jo;Rho, Tae-Wook;Lee, Jong-Soo
    • Korean Journal of Food Science and Technology
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    • v.20 no.6
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    • pp.787-793
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    • 1988
  • Juices of Golden Queen, Neo-Muscat and Seibell-9110 were prepared with the addition of $SO_2(100ppm)$ in must and juice, of $SO_2(100ppm)$ and pectinase (40mg/l) in must, respectively and then 300mg/1 of Polyclar AT were added on different white wines from grape juices. Phenolics content in grape juices and white wines were determined. and also changes of browning capacity of white wines during the storage periods at $45^{\circ}C$ were investigated by accelerated method. Extraction of total phenol into grape juices was increased significantly in $SO_2-pectinase$ addition lot and content of total phenol of Seibell-9110 juice was two or three times higher than the others. Yield of grape juices was highest in $SO_2-pectinase$ addition lot. Ethanol content of white wines were 11.4-12.0 v/v% , and total acid, fusel oil and methanol content of Neo-Muscat white wine was lower than that of the other white wines. Total phenol content of white wines was 25-50% lower than that of grape juices and 50-80% lower in colour. Browning capacity of white wines was decreased by 25-40% for 18 days at $45^{\circ}C$ with addition of Polyclar AT, but Seibell-9110 white wine prepared from $SO_2-pectinase$ addition lot was not available commercially because of severe browning.

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Wine quality prediction analysis using machine learning (머신러닝을 이용한 와인 품질 예측분석)

  • Kim, Min-Seung;Jeong, Jae-hyeon;Kim, Jong-min
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.690-693
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    • 2022
  • In this study, we used wine data to perform correlation analysis on factors that affect wine quality, and predicted wine quality standards based on the results. The dataset used in this study used data from 1599 red wines and 4898 white wines produced in Vinho verde, Portugal, for a total of 6497. The variable items are 12 kinds of component variables that represent wine components through physical and chemical analysis tests, a total of 1599 observations, and a total of one of the representative wines of the three major wine producing regions in the world (France, Italy, Spain). Added 3 pieces. Analysis was made by applying national climate change data.

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Fermentation Characteristics of Wine Yeast Strains for White Wine Making (백포도주 양조에 있어서 포도주 효모의 발효 특성)

  • Seoktae Jeong;Nami Goto;Park, Jonguck
    • Food Science and Preservation
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    • v.8 no.3
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    • pp.326-330
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    • 2001
  • The characteristics of used wine yeast strains were as follows, S6U showed low fermentation speed than those of other yeast strains, but this strain fermented completely later. The wine fermented by W-3 was very low contents of total acid, 0.75% and the ones fermented by UCD530 and AC- contained much extract, 3.26 mg/L and 3.22 mg/L respectively. The wine fermented by CEG and CS2 were predominant in yellowness, and EC1118 produced large amount of acetaldehyde, 49.9 mg/L than those of other strains. EC1118 and CY3079 displayed low methylene blue dyeing ratio, below 15%, meaning high alcohol tolerance yeast. UCD530 produced extremely high contents of glycerol, succinate and lactate compared with other strains. These properties revealed that UCD530 was a typical Saccharomyces bayanus species. The main organic acids produced by wine yeasts were pyruvate, lactate, succinate and acetate. The concentration of acetate in experimental wine could be divided into two parts, one group had concentration below 170 mg/L (UCD530, EC1118, AC-, CY3079, W-3), and the other had concentration up to 350 mg/L (S6U, CEG, CS2).

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The land of white wine, GERMAN

  • Choe, Won-Yeong
    • 주택과사람들
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    • s.192
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    • pp.40-41
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    • 2006
  • 최근 독일 월드컵에 대한 이목이 집중되면서 독일 와인에 대한 관심도 함께 높아졌다. 사실 우리나라에서는 독일 와인이 다소 생소하겠지만 '리즐링' 품종으로 알려진 화이트 와인의 강국이 바로 독일이다. 와인 애호가들을 사로잡기에 충분한 독일 와인으로의 달콤한 초대

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Quality Characteristics of White Pan Bread added with Red Wine (적포도주를 첨가한 식빵의 품질 특성)

  • Lee, Seon-Ho;Bae, Jong-Ho
    • Journal of the East Asian Society of Dietary Life
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    • v.25 no.2
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    • pp.333-339
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    • 2015
  • This study was conducted to investigate the effect of baking on the physicochemical and sensory properties of white pan bread with red wine (RW). RW was substituted for water at four levels (0, 19, 38 and 63%). For bread crumb color, lightness decreased with increasing levels of RW, whereas redness and yellowness increased (p<0.05), in proportion to RW levels. Compared to control bread, specific volume of breads added with RW was decreased. The degree of dough raising power decreased significantly depending on the amounts of RW. The hardness of control bread was $87.35g/cm^2$ while the hardness of breads with RW ranged from 85.37 to $94.19g/cm^2$. Hardness, cohesiveness, springiness and gumminess of breads added with RW showed higher scores than the control group. In the sensory evaluation, the highest flavor and taste preference scores were observed in bread containing 38% RW, whereas the lowest score was observed in bread with 63% RW. Accordingly, the quality of bread can be improved by addition of 38% RW substituted for water.