• Title/Summary/Keyword: sake

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Clarification and Aging of Fermented Honey Wine (벌꿀 발효주의 청징과 숙성)

  • Kim, Dong-Han;Rhim, Jong-Whan;Jung, Soon-Teck
    • Korean Journal of Food Science and Technology
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    • v.31 no.5
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    • pp.1330-1336
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    • 1999
  • Effects of clarification and aging of honey wine(mead) and fruit honey wine(melomel) were investigated. Among the clarifiers tested, 'kaki shibu' and 'sake light' were effective in clearing honey wine. Clear honey wine with more than 90% light transmittance was obtained by treatment with $0.05{\sim}0.1%$ of 'kaki shibu' and 'sake light' for 2 days. Higher concentration of these clarifying agents was needed for the clarification of fruit honey wines. Treatment with 0.5% of 'sake light' and $0.05{\sim}0.1%$ of 'kaki shibu' for 4 days was effective for clearing Tangerine honey wine and Japanese apricot honey wine. Though Hunter L-values of honey wines decreased a little bit by using clarifiers, their light transmittance became more than 98% after ultrafiltration. As the content of soluble solid in mash at the beginning of fermentation increased, the content of acetaldehyde, n-propyl alcohol, n-butyl alcohol and iso-amyl alcohol of honey wine increased during aging, while the content of iso-propyl alcohol decreased. During the aging of honey wines, the sensory quality of them became milder as the amount of acetaldehyde and fusel oil decreased. Among more than twenty different volatile flavor components detected from honey wines, 1-phenyl ethyl alcohol, benzyl alcohol, 2-phenyl ethyl alcohol, octacosane and triacotane were identified as the major components for the flavor of honey wines. Sensory evaluation of the honey wines indicated that the melomel made with Japanese apricot was better than the Tangerine melomel in the aspects of taste, flavor, color and the overall acceptability. Tangerine melomel was even inferior to honey wine(mead).

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Studies on the Yeasts for the Brewing of Soy sauce ( I ) -Isolation, identification and classification of the Yeasts in the soy sauce koji- (간장발효에 관여하는 효모에 관한 연구(제 1보) -제국중에 생육하는 효모에 대하여-)

  • Lee, Taik-Soo;Lee, Suk-Kun
    • Applied Biological Chemistry
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    • v.13 no.1
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    • pp.97-103
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    • 1970
  • This experiment was carried out to investigate the yeasts for the brewing of soy sauce. The yeasts in the soy sauce koji were isolated and identified. And they were classified by coloring with the treatment of TTC(2, 3, 5 triphenyltetrazolium chloride) agar and counted. The result, obtained was as follows; a) The number of the yeasts in the Koji was increased in process of incubation time: about $97{\times}10^3$ per gram of Koji incubated for 3 days, $135{\times}10^3$ 4 days and $179{\times}10^3$ 5days. b) They were classified as 53.6-71.9 per cent of TTC while yeasts for the most, 5.6-11.1 per cent of red yeasts, 6.8-19.5 per cent of red pink yeasts and 11.1-22.6 per cent of pink yeasts. c) 30 strains of yeasts were isolated from the Koji optionally, and they were identified as 6 genera and 11 species: 5 strains of Saccharomyces rouxii, 2 strains of Saccharomyces fermentati, 1 strain of Saccharomyces rosei, 6 strains of Saccharomyces rosei, 6 strains of Hansenula anomala, 1 strain of Hansenula suaveolens, 6 strains of Pichia polymorpha, 2 strains of Debaryomyces hansenii, 2 strains of Debaryomyces nicotianae, 2 strains of Torulopsis candida 2 strains of Torulopsis sake and 1 strains of Torulopsis sake and 1 strain of Candida pelliculosa. d) The yeasts belonging to Hansenula suaveolens, Hansenula anomala Candida pelliculosa, Debaryomyces nicotianae and Pichia polymorplza were classified as TTC white yeasts, Saccharomyces rouxii and Sacharomyces rosei were red, Saccharomyces fermentati and Debaryomyces hancenii were red pink, and Torulopsis candida and Torulopsis sake were pink. e) Generally the growth of the yeasts isolated were rapid on the media containing none or 10 per cent of sodium chloride but almost restrained on the media containing 15-18 per cent of sodium chloride.

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Traditional Honey Wine Prepared with Nuruk-Yeast Mixture (누룩과 효모의 혼합사용에 의한 벌꿀주의 제조)

  • Kim, Sul-Hee;Kim, Seon-Jae;Kim, Bo-Hee;Kang, Seong-Gook;Jung, Soon-Teck
    • Korean Journal of Food Science and Technology
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    • v.32 no.5
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    • pp.1168-1172
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    • 2000
  • Fermentation characteristics for the production of honey wine with Saccharomyces sake, Saccharomyces bayanus and nuruk were investigated. Among the yeast strains and the mixture with nuruk tested, nuruk-Sacch. sake mixture and nuruk-Sacch. bayanus mixture showed higher alcohol production and better fermentability than the single strains. Total acid and pH did not change considerably during the whole period of fermentation. As the fermentation progressed, reducing sugar decreased rapidly until the 6 days of fermentation, while alcohol content increased rapidly during the same period. In fermentation of 6 days, honey wine consisted of about $7.5{\sim}8.1^{\circ}Brix$ of soluble solid, $22.7{\sim}31.8%$ of reducing sugar. Alcohol content were reached up to 12.5 and 13.1% for honey wine manufactured with nuruk-Sacch. sake mixture and nuruk-Sacch. bayanus mixture, respectively, relative to $5.2{\sim}7.2%$ of the single strains. Generally, honey wines prepared with the mixture of nuruk-yeast strains were fermented more efficiently than those with the single yeast.

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Effect of Radish Extract on the Growth of Food-born Microorganisms (무 추출물이 식품관련 미생물의 증식에 미치는 영향)

  • 곽희진;계수경;곽희선;이경혜
    • Journal of the East Asian Society of Dietary Life
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    • v.10 no.4
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    • pp.288-297
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    • 2000
  • To understand the effect of radish on growth of food born microorganisms, mashedflesh radishes were extracted by using acetone and distilled water. Their effect was assayed by measuring the optical density of cultural broth of food born microorganisms. In the experiment, seven strains of yeast were used as the test organism. Acetone extract inhibited growth of the cells of L. plantarum, L. sake and Danmuji film yeast. Growth of the film yeast was drastically inhibited in the concomitant presence of 0.03% extract, while other microbes such as L. faecalis, P. pentosaceus, B/ subtilis and E. coli grew by succeeding cultivation for 4 to 8 hour after addition of the extract. Water extract, on contrast to acetone extract, at he concentrations of 0.1∼1.5% stimulated the growth of lactic acid bacteria. Culture of L. faecalis and L. sake showed an optical density higher than that of control by 40∼50 times. The effect was not so apparent against E. coli, S. aureus and Danmuji film yeast.

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A Study on Requirements for the Automation of Standardized Rebar Shop Drawing (표준화된 철근배근도 작성 자동화를 위한 필요 사항에 관한 연구)

  • Kang, Pyeong-Doo;Ye, Sang-Min;Park, Kwang-Seob;Kim, Yun-Tae
    • Journal of Korean Association for Spatial Structures
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    • v.13 no.1
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    • pp.105-112
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    • 2013
  • An automation of standardized rebar shop drawing is necessary for easy application by improving workability, prompt preparation to field change request and easy revisions of shop drawing. Through investigating problem of current rebar shop drawing, we found that standardization of reinforcing detail, standardization of rebar expression and automation of rebar shop drawing program for the sake of designer is needed. We will investigate disagreement of reinforcing detail between building code and how worker build structure for standardization of reinforcing detail, demands of companies participated in rebar process for standardization of rebar expression and proper algorithm with selectable level of inputting data for automation of rebar shop drawing program for the sake of designer.

Purification and Properties of Extracellular Esterases of Aspergillus oryzae which synthesize Ethyl Caproate

  • Lee, Jong-Hoon;Sato, Toshitsugu;Kawai, Yuri;Enei, Hitoshi
    • Journal of Microbiology and Biotechnology
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    • v.5 no.5
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    • pp.274-279
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    • 1995
  • Ethyl caproate, one of the major flavor compounds deciding the quality of sake (Japanese wine), is produced during the brewing by the action of alcohol acyltransferase and esterases of sake yeast and koji mold. Extracellular esterases of Aspergillus oryzae required for ethyl caproate synthesis were purified partially. The enzymes had different optimum pH and affinity toward substrates. Substrate preferences and inhibition features showed the three enzymes to be B-type esterases or carboxylesterases (EC 3.1.1.1).

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A Study on Design Trends of the Contemporary School Architecture -Focused on School Buildings since the Second Half of the 1980's- (동시대(同時代) 학교건축(學校建築)의 디자인 경향(傾向)에 관한 연구(硏究) -1980년대 후반이후 학교건물을 중심으로-)

  • Lee, Hwa-Ryong
    • Journal of the Korean Institute of Educational Facilities
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    • v.14 no.1
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    • pp.5-13
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    • 2007
  • An architectural practice cannot help involving a social art as its own concept. Especially school buildings are subjected to the influence of not only the educational philosophy and the national curriculum, but also the sociocultural context with the change of the times. This study aims to explore the contemporary trends of school architecture and give new inspiration to the school design practice. After it establishes the 'contemporary' school architecture as school buildings built from the second half of the 1980's to the present time, this paper classifies them into 4 categories : popularist trend, traditional and regional tendency, revival of classicism and the pursuit of art for art's sake.