• Title/Summary/Keyword: Korean beer

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Purification and Utilization of Industrial Waste Water Using Microorganism -(Part 1) Isolation of the yeast strain from organic waste water and its use on waste water treatment- (산업폐수의 처리 및 이용에 관한 연구 -(제 1 보) 효모균주의 분리와 이에 의한 유기성폐수의 처리에 관하여-)

  • Lee, Kang-Heup;Yim, Sung-Sam;Park, Tai-Won
    • Applied Biological Chemistry
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    • v.20 no.2
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    • pp.228-235
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    • 1977
  • The yeast strain was isolated from food industry waste water and its identification and biological characteristics were investigated. The optimum condition for cultivations and its activities for the reduction of B.O.D. on the food industry waste water were also confirmed. The results are as follows; 1) The isolated was identified as Candida curvata. 2) Candida curvata grew well in all of the experimented media, so and it can be regarded as a useful strain in the treatment of food industry waste water. 3) There was only a slight difference in the induction period between sterilized cultivation and unsterilized cultivation. But in the ice cream waste water, the period was considerably longer in unsterilized cultivation. 4) Specific rate of growth of Candida curvata in sugar waste water was 0.50/hr, ice cream waste water 0.50/hr, and beer waste water 1.0/hr. 5) Increasing of innoculum reduced the induction period in unsterilized cultivation. 6) The amount of dried yeast from sugar waste water were $175mg/{\ell}$, ice cream waste water $628mg/{\ell}$, and beer waste water $857mg/{\ell}$. Crude protein content in the dried yeast from sugar waste water were 52%, ice cream waste water 54%, and beer waste water 54%. 7) The rate of BOD reduction in sugar waste water were 49%, ice cream waste water 80%, and beer waste water 64%.

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Objective Aperture Effects for the Quantitative Analysis in Electron Tomography (전자토모그래피의 정량적 분석에서 대물렌즈 조리개의 영향)

  • Kim, Jin-Gyu;Lee, Sang-Hee;Kweon, Hee-Seok;Jeong, Jong-Man;Jeong, Won-Gu;Lee, Su-Jeong;Jou, Hyeong-Tae;Kim, Youn-Joong
    • Applied Microscopy
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    • v.38 no.4
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    • pp.285-291
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    • 2008
  • We have evaluated the effects of experimental factors on transmitted electron beam intensities for quantitative analysis in electron tomography. For the correct application of Beer's law in electron tomography, the transmitted beam intensity should reflect the net effect of mass properties on beam path. So, the any other effects of the objective aperture and the specimen holder on beam path should be removed. The cut-off effects of objective aperture were examined using Quanti-foil holey carbon film and a transmission electron microscope operated at 120 kV. The transmitted beam intensities with $30{\mu}m$ objective aperture dropped about 16.7% compared to electron beam intensities without the objective aperture. Also, the additional losses of about 14.2% at high tilt angles were occurred by cut-off effects of the objective apertures. For the precise quantitative analysis in electron tomography, the effect of the objective aperture on transmitted electron beam intensities should be considered. It is desirable that 2-D tilt series images are obtained without the objective aperture for correct application of Bee's law.

Chillproofing of beer with microbial enzyme

  • 이수오;박무영
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1976.10a
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    • pp.190.1-190
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    • 1976
  • 맥주의 한sod 혼탁방지용으로 널리 사용되고 있는 papain을 미생물 효소로써 대치할 목적으로 토양에서 분리한 148주의 균주가운데서 Bacillus 속이라고 추정되는 한 균주를 선택하여 효소를 생산하였다. 이 효소는 제탁 능력에 있어서 시판의 protesal에 비등하며 저장시에는 pH7-8, 온도 $35^{\circ}C$ 이하에서 안정성이 확인되어 충분히 실용가치가 있는 것으로 본다.

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Antimutagenic and Antigenotoxic Effects of Beer Components and its Mechanisms

  • Arimoto, Sakae
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2003.10b
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    • pp.105-105
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    • 2003
  • Cancer has been important cause of human mortality. It was known that about one third of all deaths from cancer may be ascribed to diet habits. To identify food and drinks which could protect against cancer is important. Antimutagenicity and anticarcinogenicity of dietary components are being studied extensively.(omitted)

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Fermentation properties of beer produced from Korean two-row barley or malt (Gwangmaek) supplemented with Korean red ginseng extracts and Bokbunja (Rubus coreanus Miquel) juice

  • Park, Ji-Won;Kim, Ji Hyeon;Kwon, Young-An;Kim, Wang June
    • Korean Journal of Food Science and Technology
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    • v.51 no.6
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    • pp.596-603
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    • 2019
  • This study involved the production of specialty lager beers supplemented with Korean red ginseng extracts or Bokbunja (Korean black raspberry, Rubus coreanus Miquel) juice. The effects of the Korean red ginseng extracts or Bokbunja juice on the specific gravity, pH, yeast viability, free amino nitrogen content, reducing sugar content, color, alcohol content, turbidity, and sensory evaluation were evaluated. The alcohol content of the beers containing the extracts or juice were within the standard alcohol amounts (3.63-4.0%, v/v). The pH values of the three samples containing Bokbunja juice were lower than that of the control values. The sensory evaluation showed that the addition of Bokbunja juice was superior to the ginseng extracts, and the optimal addition time was before or after the secondary fermentation. These data indicate that the flavor and odor of the Bokbunja juice are more persistent than that of the ginseng extracts.

Consumption of Alcoholic Beverages and Perception of Korean Cheongju (한국형 청주에 대한 소비자의 주류 실태 및 인식 조사)

  • Jeon, Jin-Ah;Ko, Jae-Yoon;Jeong, Seok-Tae
    • Journal of the East Asian Society of Dietary Life
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    • v.27 no.2
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    • pp.215-222
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    • 2017
  • The purpose of this study was to investigate consumer behavior and perception of Korean cheongju (rice-wine). An online survey, conducted from July 24, 2015 to July 31 2015, targeted 500 males and females adults in Seoul, Busan, Daejeon, Gwangju, Daegu, Incheon and Ulsan. Male respondents were more likely to drink more often than female respondents. Male respondents preferred 'beer', 'soju', and 'cheongju/yakju' in that order while female respondents preferred 'beer', 'cheongju/yakju', and 'soju' in that order. The reasons for drinking cheongju were 'taste' and 'flavor' for both males and females. The most important characteristic of Korean cheongju product included 'use of domestic ingredients', followed by 'tradition of brewing'. Both males and females responded that an important element of taste/flavor were 'simple/pure taste' when brewing Korean cheongju. In the survey of image recognition of Korean cheongju, 'tradition' and 'trust' were the most important. Therefore, it is necessary to develop various marketing strategies by understanding consumer preferences and perception of Korean cheongju.