• Title/Summary/Keyword: brewing

Search Result 343, Processing Time 0.024 seconds

Soju brewing characteristics of yeast strains N4 and N9 isolated from Korean traditional Nuruk (재래누룩에서 분리한 N4와 N9 효모의 증류식 소주 양조특성)

  • Choi, Han-Seok;Kang, Ji-Eun;Jeong, Seok-Tae;Kim, Chan-Woo;Baek, Seong-Yeol;Yeo, Soo-Hwan
    • Food Science and Preservation
    • /
    • v.24 no.5
    • /
    • pp.714-724
    • /
    • 2017
  • Soju is a Korean traditional distilled alcoholic beverage produced from mashes various crops and Nuruk which is cultured with wild microorganisms. This study was conducted to investigate rice-Soju brewing characteristics of yeasts isolated from Korean traditional Nuruk. The general components of rice (Hanarumbyeo) raw materials were 14.7 g of water, 6.8 g of crude protein, 0.9 g of crude lipid, 0.4 g of crude ash, and 76.5 g of carbohydrate in 100 g. Saccharifying and proteolytic activities in Hanarumbyeo ipguk (solid-state culture of Aspergillus luchuensis) were also determined. The alcohol content of the fermented wash from isolates was 15.37-16.58% (v/v), which is 16.7-36.0% higher than that of industrial yeasts (12.33-13.19%). Reducing sugar contents were 2.04-3.92 and 7.92-8.78 g/100 mL in the isolates and industrial yeasts, respectively. The isolated yeasts showed 25.2-52.7% higher yield of distillates (41% alcohol) compared to industrial yeasts. Forty-one components were detected in the rice distillated Soju (25% alcohol) and principal component analysis revealed differences between the isolated and industrial yeasts with respect to the contents of i-BuOH, isobutanal diethyl acetal, ethyl caprate, and tetradecanoic acid.

Screen of a Novel Yeast for Brewing of Gugija Leaf Makgeolli and Optimal Alcohol Fermentation Condition (구기자 잎 막걸리 제조용 효모의 선발 및 최적 알코올 발효조건)

  • Kim, Young-Hun;Joo, Jeong-Il;Lee, Bong-Chun;Kim, Hyun-Ho;Lee, Jong-Soo
    • The Korean Journal of Mycology
    • /
    • v.41 no.3
    • /
    • pp.167-171
    • /
    • 2013
  • The goal of this study was to screen a useful alcohol fermentative yeast for Gugija leaf makgeolli (Gl makgeolli) brewing and establish its optimal fermentation condition. Gugija leaves with various alcohol fermentative yeasts were added into the mixture of cooked non-glutinous rice and koji, and then fermented at $25^{\circ}C$ for 7 days. Among several Gl makgeolli, ethanol contents was the highest in Gl makgeolli made by S. cerevisiae F-1. Therefore, we selected S. cerevisiae F-1 as suitable yeast for brewing of Gl makgeolli. Gl makgelli with the best total acceptability and high antihypertensive action was obtained when cooked non-glutinous rice (120 g), boiled D.W (100 mL) and JJ koji (60.5 g/300 sp) were mixed and fermented for 2 days at $30^{\circ}C$ with S. cerevisiae F-1 (5%), and added again cooked non-glutinous rice (150 g), glutinous rice (100 g), D.W (500 mL) and Gugija leave (0.1%/cooked rice) and further fermented for 5 days at $25^{\circ}C$.

Studies on a Pumpkin Wine (호박술에 관한 연구)

  • 안용근;이석건
    • The Korean Journal of Food And Nutrition
    • /
    • v.9 no.2
    • /
    • pp.160-166
    • /
    • 1996
  • In order to develop a pumpkin wine, the brewing conditions and sensory evalution of the wine were studied. The pumpkin can be made into wine by ethanol fermentation with Saccharomyces cerevisae. When the mash was adjusted 15aA pumpkin and 25% sugar and fermented for 15 days, the product was highly evaluted in color, flavor and taste. Contents of the refined pumpkin wine were 80mg/ml of total sugar, 70mg/ml of reducing sugar, 2.1 of acidity and 12% of ethanol, and it's pH was 3.6.

  • PDF

녹맥아에서 추출한 Endo-$\beta$-1,3-glucanase의 정제와 효소학적 성질

  • 손봉수;성낙계
    • Proceedings of the Korean Society for Applied Microbiology Conference
    • /
    • 1986.12a
    • /
    • pp.520.1-520
    • /
    • 1986
  • Endo-$\beta$-1,3-glucanase는 barley glucan, laminarin등에 특이적으로 작용하는 효소로서 Malting process, Brewing process에 중요한 효소이다. 본 연구에서는 산업적으로 이용하기 위한 기초자료를 얻기 위하여 국산맥주맥으로 발아한 Green Malt를 Sample로 하여 Endo-$\beta$-1,3-glucanase를 추출하여 (DEAE Sephadex A-50, CM sephadex C- 50 Sephadex G-75)등을 이용하여 정제하여 이들 정제효소의 효소학적 성질등을 검토하였다.

  • PDF

Studies on Sensory Evaluation -[Part II] Trio Paired Comparison- (관능검사(官能檢査)에 관(關)한 연구(硏究) -[제2보(第2報)] 3각1대비교법(3角1對比較法)에 대하여-)

  • Hong, Jin
    • Applied Biological Chemistry
    • /
    • v.20 no.3
    • /
    • pp.270-278
    • /
    • 1977
  • In case of sensory evaluation with multi-samples and long-period, in spite of using method with good sensitivity, quality differences among samples could net be detected well because of panel's fatigue and tiredness. So new method to reduce panel's sense of psychological and physiological responsibility, "Trio Paired Comparison", is designed, and New Modified Scheffe's Method 2 as the statistical method for a test of "Trio Paired Comparison" is proposed. And also in this paper problems and countermeasures in applicating "Trio Paired Comparison" are considered.

  • PDF

On-line monitoring & control system in brewing process (맥주 공정의 자동계측 및 제어)

  • 백운화;고의찬;이광순;심정우
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1986.10a
    • /
    • pp.471-473
    • /
    • 1986
  • 맥주 제조 공정은 다음과 같이 이루어 진다. 담금공정-발효공정-저장공정-여과공정-제품공정, 이중 발효 및 저장 공정은 미생물이 관여하므로 균체의 생육과 제품 생산과의 관계등이 아주 예민하고 복잡하므르 Computer에 의한 자동 계측 및 제어는 효과적인 공정관리 수단이 되며, 또한 품질 향상과 균일화를 기대 할 수 있다. 이에 발효 및 저장조의 128 채널의 공정치 On-line monitoring, graphic display, disk 저장, 프린터로의 reporting 및 제어를 위한 hardware system 구성과 software를 개발하였다.

  • PDF

On the Production of L-Glautamic Acid from Acetate by Some Microbes (빙초산을 탄소원으로 한 글루타민산 생성에 관한 연구)

  • 유영진;박계인;김기주;한덕봉;김요성
    • Korean Journal of Microbiology
    • /
    • v.11 no.2
    • /
    • pp.59-62
    • /
    • 1973
  • Bacterium strain, K-173-10, which was isolated from waste soil of Korean brewing factories, could grow on acetate as the sole carbone source and accumulate a considerable amount of L-glutamic acid (24g/l) in the liguid culture medium. This strain was named by Brevibacterium ammoniagenes sp. by the standard method of taxonomy procedures given in the Manual of Microbiogical Methods.

  • PDF

Improvement in the Quality of Takju by the Combined Use of Aspergillus kawachii and Aspergillus oryzae (Aspergillus kawachii와 Aspergillus oryzae의 병용에 의한 탁주의 품질개선)

  • 소명환
    • The Korean Journal of Food And Nutrition
    • /
    • v.4 no.2
    • /
    • pp.115-124
    • /
    • 1991
  • In order to improve the quality of Takju, the effect of combined use of Aspergillus oryzae and Aspergillus kawachii in brewing was investigated. The quality of Takju which was brewed by the combined use of Aspergillus oryzae CF7-koji and Aspergillus kawachii CF1-koji in equal amount was better as cmapared with that brewed by existing method using Aspergillus kawachii-koji only as koji. But the good result did not obtained when the koji was made by mixed culture of Aspergillus oryzae CF7 and Aspergillus kawachii CF1.

  • PDF

Electrofusion (세포융합-전기적 세포융합)

  • 조문구
    • The Microorganisms and Industry
    • /
    • v.26 no.1
    • /
    • pp.2-7
    • /
    • 2000
  • Bacterium strain, K-173-10, which was isolated from waste soil of Korean brewing factories, could grow on acetate as the sole carbone source and accumulate a considerable amount of L-glutamic acid (24g/l) in the liguid culture medium. This strain was named by Brevibacterium ammoniagenes sp. by the standard method of taxonomy procedures given in the Manual of Microbiogical Methods.

  • PDF

Characteristics of Proteases from Stomachless Aquatic Organisms

  • Jeong, Yoonhwa
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2001.10a
    • /
    • pp.22-22
    • /
    • 2001
  • Enzymes have been used in practical applications as diverse as brewing and industrial fermentations, detergent, analytical determinations and recombinant DAN technology. As processing aids, enzymes have been used in the manufacture of food products to improve their quality, solubility and stability for centuries. About 50% of the enzyme used as industrial processing aids are pretenses which have been used in a number of industrial applications including laundry detergents, chill proofing, meat tenderizing, fermented sauces, and the production of pharmaceuticals. (omitted)

  • PDF