• 제목/요약/키워드: Korean cheese

검색결과 574건 처리시간 0.026초

Camembert Cheese 숙성 중 Casein의 변화에 관한 연구 (Changes in Caseins during the Ripening of Camembert Cheese)

  • 이지환;이수원;정재홍;양융
    • 한국식품과학회지
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    • 제22권3호
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    • pp.337-342
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    • 1990
  • P. caseicolum V.B.와 복합유산균을 사용하여 제조한 Camembert cheese를 45일간 숙성시키면서 카제인 변화와 그에 따른 기호성을 조사하였다. 숙성과정 중 수용성 질소, 비카제인태 질소, 비단백태 질소량은 증가하였다. pH 4.6-insoluble casein의 전기영동 결과 숙성 10일에는 4개의 band에서 45일에 12개의 band로 분리되었는데 ${\alpha}_{s1}-casein$은 숙성 17일에 완전히 분해되었으며, ${\beta}-casein$도 숙성 45일 동안 거의 대부분이 분해되었다. 또한 pH 4.6-soluble casein fragments의 gel filtration에서 숙성 10일에는 3개의 fraction, 24일까지는 4개의 fraction이 나타났고 31일부터는 5개의 fraction으로 분별되었다. 관능검사 결과 숙성 31일된 Camembert cheese의 기호성이 제일 높았으며, 숙성이 진행됨에 따라 hardness는 감소하였고 관능적 기호성과는 0.1%의 유의수준으로 높은 상관관계를 나타냈다.

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Characteristics of Gouda cheese supplemented with fruit liquors

  • Choi, Hee Young;Yang, Chul Ju;Choi, Kap Seong;Bae, Inhyu
    • Journal of Animal Science and Technology
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    • 제57권3호
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    • pp.15.1-15.6
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    • 2015
  • This study was conducted in order to evaluate the quality characteristics of Gouda cheeses supplemented with fruit liquor (Prunusmume or Cornus officinalis). Fruit liquor was supplemented to Gouda cheeses during preparation. Changes in chemical composition, lactic acid bacterial population, pH, water-soluble nitrogen, sensory characteristics, and proteolysis were monitored in the prepared ripened cheese. The electrophoresis patterns of cheese proteins, fruit liquor functional component concentrations, and the flavonoid content of the cheeses were also determined. The addition of fruit liquor did not affect (p> 0.05) the appearance or sensory characteristics of the cheeses. Higher amounts of crude ash, mineral, and flavonoids (p< 0.05) were observed in the liquor supplemented cheese than in the control cheese. Findings from this study suggest that wine supplemented Gouda could provide additional nutrients while maintaining flavor and quality.

체다 치즈의 맛의 개발 (Flavor development in cheddar cheese)

  • 정청송;유상훈
    • 한국관광식음료학회:학술대회논문집
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    • 한국관광식음료학회 2003년도 학술논문발표집
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    • pp.19-35
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    • 2003
  • This study was carried out to find a cholesterol removal rate, flavor development, and bitter amino acid productions in Cheddar cheese treated with -cyclodextrin (${\beta}-CD$): 1) Control (no homogenization, no ${\beta}--CD$), and 2) Milk treatment (1000 psi milk homogenization, 1% ${\beta}-CD$). The cholesterol removal of the cheese were 79.3%. The production of short-chain free fatty acids (FFA) increased with a ripening time in both control and milk treated cheese. The releasing quantity of short-chain FFA was higher din milk treated cheese than control at 5 and 7 mo ripening. Not much difference was found in neutral volatile compounds production between samples. In bitter-tasted amino acids, milk treatment group produced much higher than control. In sensory analysis, texture score of control Cheddar cheese significantly increased, however, that in cholesterol-reduced cheese decreased dramatically with ripening time.

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Determination of Microbial Diversity in Gouda Cheese via Pyrosequencing Analysis

  • Oh, Sangnam;Kim, Younghoon
    • Journal of Dairy Science and Biotechnology
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    • 제36권2호
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    • pp.125-131
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    • 2018
  • The present study aimed to investigate the microbial diversity in Gouda cheese within the four months of ripening, via next-generation sequencing (NGS). Lactococcus (96.03%), and Leuconostoc (3.83%), used as starter cultures, constituted the majority of bacteria upon 454 pyrosequencing based on 16S rDNA sequences. However, no drastic differences were observed among other populations between the center and the surface portions of Gouda cheese during ripening. Although the proportion of subdominant species was <1%, slight differences in bacterial populations were observed in both the center and the surface portions. Taken together, our results suggest that environmental and processing variables of cheese manufacturing including pasteurization, starter, ripening conditions are important factors influencing the bacterial diversity in cheese and they can be used to alter nutrient profiles and metabolism and the flavor during ripening.

김치 분리 유산균의 치즈 곰팡이 항진균 활성 (Antifungal activity against cheese fungi by lactic acid bacteria isolated from kimchi)

  • 최하늘;오현희;양희선;허창기;배인휴;이재성;정용섭;정은정;정후길
    • 한국식품저장유통학회지
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    • 제20권5호
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    • pp.727-734
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    • 2013
  • 본 연구는 치즈 숙성 중 오염원인 곰팡이균 제거기술 개발의 일환으로 수행하였다. 치즈 및 치즈 숙성실에서 자생하는 곰팡이를 분리하고, 지역별 김치로부터 유산균을 분리하여 치즈 곰팡이에 대한 항진균 활성을 측정한 결과는 다음과 같다. 치즈와 치즈 숙성실에 분리된 곰팡이는 총 8종으로Penicillium과 Cladosporium으로 동정되었다. 지역별 김치로부터 분리된 유산균은 총 44종이고 이 중 항진균 활성을 보인 유산균 22종을 동정한 결과 Lactobacillus와 Pediococcus로 확인되었다. 동정된 김치 분리 유산균 22종 중 항진균 활성도가 높은 유산균 6종(L. sakei subsp. ALJ011, L. sakei subsp. ALI033, L. sakei subsp. ALGy039, P. pentosaceus ALJ015, P. pentosaceus ALJ024, P. pentosaceus ALJ026)을 선발하여, 치즈 곰팡이균 8종에 대하여 항진균 활성을 측정한 결과 전주지역 김치에서 분리한 유산균인 P. pentosaceus ALJ015, P. pentosaceus ALJ024과 임실지역 김치에서 분리한 유산균인 L. sakei subsp. ALI033 균주가 치즈 곰팡이에 대한 항진균 활성이 높게 나타났다. 치즈 곰팡이에 대한 유산균 배양액의 최소저해 농도를 측정해 본 결과, 생육저지환으로 알아본 항균활성 실험과 동일하게 분리 곰팡이균 8종에 대하여L. sakei subsp. ALI033 유산균의 항진균 활성이 가장 크게 나타났다.

Cheddar Cheese의 Cholesterol 감소에 관한 연구 (A Development of Cholesterol Decrease in Cheddar Cheese)

  • 장혁래;정청송
    • 한국관광식음료학회지:관광식음료경영연구
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    • 제13권1호
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    • pp.1-27
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    • 2002
  • 본 실험은 $\beta$-cyclodextrin을 사용하여 cholesterol을 제거한 균질우유로부터 cholesterol이 제거된 치즈 제조의 조건을 규명하고, 그 조건에 따라 제조된 Cheddar cheese의 특성 및 관능 검사를 함으로써 cholesterol이 제거된 Cheddar cheese의 개발 가능성을 조사하는데 그 목적을 두고 있다. 따라서 균질온도는 $70^{\circ}$로 정하고, 균질압력을 750, 1000, 13009si(52.5, 70, 91kg/$cm^2$)로, $\beta$-cyclodextrin 첨가량을 1과 2%로 처리하여 제조한 6가지의 Cheddar cheese와 균질을 하지 않고 $\beta$-cyclodextrin의 처리를 하지 알은 control 치즈간의 수율, cholesterol 제거율, 용해성, 팽창성, 지방축소, 조직검사, 관능검사 등의 실험을 실시하여 control 치즈와 가장 유사한 cholesterol이 제거된 Cheddar cheese 개발의 가능성을 시도하였고, 그 결과는 다음과 같다. 1. Cholesterol을 제거한 Cheddar cheese의 제조에서 최적조건은 균질압력 1000psi (70kg/$cm^2$), 균질온도 $70^{\circ}$, $\beta$-cyclodextrin 침가량 1.5%였으며, 이때 우유의 cholesterol의 제거율이 86.05%로 가장 높게 나타났다. 2. 유지방 함량 23.80%인 control 치즈의 cholesterol 함량은 81.4 Cheddar cheese에서는 cholesterol 함량이 20.15mg/100g으로 cholesterol 제거율이 75.27%로 가장 높게 나타났다. 3. 용해성은 균질압력 1300psi(91kg/$cm^2$)에 $\beta$-cyclodextrin 1과 2%로 처리한 치즈에서 2.25cm(control 3.34cm)로 가장 낮았으며, 균질압력이 증가할수록 용해성이 감소하여 치즈의 품질을 저하시켰다. 4. Hardness, gumminess, chewiness는 균질압력 1200psi(91kg/$cm^2$)에 $\beta$-cyclodextrin 1%로 처리한 치즈에서 각각 가장 낮은 2.03kg/c$m^2$, 2.18kg, 2.24kg/cm(control 5.46kg/$cm^2$, 5.24kg, 4.87kg/cm)를 나타내었으며, control과 cholesterol을 제거한 치즈들 사이에 유의적(p<0.05) 차이를 보이며 큰 감소를 나타내었다. 5. 이 실험결과, 균질압력 1300psi(91kg/$cm^2$)에 $\beta$-cyclodextrin 1.5% 첨가한 Cheddar cheese에서 cholesterol 축소율이 75.27%로 가장 높았으며, 균질 처리가 Cheddar cheese의 수율, oiling off, appearance score, flavor scope 등을 향상시켰고, 용해성과 팽창성이 hardness, gumminess, chewiness, texture score를 저하시키는 것으로 나타나 cholesterol이 상당부분 축소 제거된Cheddar cheese의 개발 가능성이 관찰되었다.

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Processed cheese 제조에 있어 polyphosphates 대체에 관한 연구 (Studies on the Replacement of Polyphophates in the Processed Cheese)

  • 안효일;이부웅
    • 한국식품영양과학회지
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    • 제11권1호
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    • pp.45-49
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    • 1982
  • 이상의 실험 결과에서 유화제나 증점제가 polyphosphates의 용도처럼 목적에 따라 다양한 경도의 변화를 가져오지 않는 것은 이들 화합물이 Bonell의 제시처럼 polyphosphates가 cheese내에서 단백질과의 완충 작용 및 원하는 texture형성을 하지 못하는 것으로 보인다. 더욱 중요한 것은 polyphosphates가 주는 특유한 processed cheese맛을 내지 못하는 것이다. 모래알같은 조직감을 주는 것은 균일하게 분산되지 않은 단백질이 화합되거나 결정화되기 때문인 것으로 보인다. 증점제나 유화제의 부분적 대치는 물성적으로 좋은 제품을 만들 수 있다. 이러한 결과는 체내에 흡수되어야 할 polyphosphates의 완전 대치는 process cheese의 전형적인 질을 고려한다면 불가능한 것으로 보여진다. 적은 비율의 유지방 cheese 제조에 있어 polyphosphate대치가 이러한 제품에선 현저한 영향을 미치지 않는 것으로 보인다.

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융합주에 의한 치즈 숙성시 성분변화와 조직 특성 (Changes of Cheese Components and Texture Characteristics in Cheese Ripening by Fusant Developed by Lactic Acid Bacteria)

  • 송재철;김정순;박현정;신환철
    • 한국식품영양과학회지
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    • 제26권6호
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    • pp.1077-1085
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    • 1997
  • This study was carried out to elucidate the utilization of the fusant for shortening the ripening time by making an observation of the microstructure and the profile of component change. In ripening cheese, moisture content of the sample treated with tested strain is not a remarkable difference among the test samples. With an increase of the ripening time, L. helveticus showed the highest increase in protein content, followed by fusant, and then L. bulgaricus. The fat content of all starters was gradually decreased while it was it was rapidly decreased after 7 days. The pH of all starters was gradually decreased when the ripening time increased. The titratable acidity was greatly increased between a 9th day and a 15th day ripening. In investigating the light microscopic microstructure of ripened cheese samples, the sample treated with fusant indicated little difference from the other starters in decomposition of protein and fat components by microbial enzymes. In SEM observation, the structure of all cheese samples was uniform and the rough texture was converted into smooth texture by the interaction of cheese components and the abscission of single bond in casein matrix when the ripening time is increased. The fusant showed similar results in the examination of component change and its microstructure compared with the other starters. Therefore, it was revealed that the fusant can be partially used as a cheese starter instead of conventional starters by replacing them or combining them together with the other starters for shortening the ripening time.

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Evaluation of Natural Food Preservatives in Domestic and Imported Cheese

  • Park, Sun-Young;Han, Noori;Kim, Sun-Young;Yoo, Mi-Young;Paik, Hyun-Dong;Lim, Sang-Dong
    • 한국축산식품학회지
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    • 제36권4호
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    • pp.531-537
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    • 2016
  • In milk and milk products, a number of organic acids naturally occur. We investigated the contents of some naturally occurred food preservatives (sorbic acid, benzoic acid, propionic acid, nitrite, and nitrate) contained in domestic and imported cheeses to establish the standard for the allowable range of food preservatives content in cheese. 8 kinds of domestic precheeses (n=104), 16 kinds of domestic cured cheeses (n=204) and 40 kinds of imported cheeses (n=74) were collected. Each domestic cheese was aged for a suitable number of months and stored for 2 mon at 5℃ and 10℃. No preservatives were detected in domestic soft and fresh cheeses, except cream cheese. In case of semi-hard cheeses, 2-5 mg/kg of benzoic acid was detected after 1-2 mon of aging. In imported cheeses, only benzoic acid and propionic acid were detected. The average benzoic acid and propionic acid contents in semi-hard cheese were 8.73 mg/kg and 18.78 mg/kg, respectively. Specifically, 1.16 mg/kg and 6.80 mg/kg of benzoic acid and propionic acid, respectively, were contained in soft cheese, 3.27 mg/kg and 2.84 mg/kg, respectively, in fresh cheese, 1.87 mg/kg and not detected, respectively, in hard cheese, and 2.07 mg/kg and 182.26 mg/kg, respectively, in blended processed cheese.

한국 목장형 치즈 생산 교육, 창업 현황 (Current State of the Education, Starting Business of Farmstead Natural Cheese in Korea)

  • 조성균;배인휴
    • Journal of Dairy Science and Biotechnology
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    • 제24권2호
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    • pp.11-20
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    • 2006
  • Korea dairy industry has a long and chronic problems to consume raw milk , those are surplus milk and decline the market milk consumption continued about 10 years. This study was aim to propose and to find the solution for dairy industry problems. After WTO system, with the importation of dairy products, domestic milk production has fell into the situation of excess supply and huge inventory of dried milk, the milk powder stocks have increased since 2002. That made a chronic decline milk consumption in Korea. The core of chronic problem of Korea dairy industry is the decreasing in market milk consumption. If they have a settlement of any other way using their raw milk to process and consumption to market milk, there will be a solution to solve the chronic problems in this situation. Especially, that will be a development of small farm scale natural cheese production and consume. This may be lead a situation of increase the raw milk consumption, because natural cheese making needs much of raw milk more than market milk. But there are very low technical level of farmers cheese making status, so they need a cheese making educational program for their commercial level of cheese products. Under these situation, there are needed a way out of educational system for the dairy farmers to obtain the high level of cheese making technology from the trustable and scientific organization. The natural cheese making technique of dairy farmers should be accumulated to get the consumers' solid recognition of high quality of natural cheese as LOHAS(Lifestyle Of Health And Sustainability) foods.

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