• 한국식품과학회지
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• 제20권2호
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• pp.218-224
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• 1988

두유제조공정 중 열처리 공정을 최적화 하기 위하여, 두유에서 4균주의 열저항성이 큰 flat-sour 변질균을 분리하였다. 분리균주들은 호기성 포자형성간균으로서 $-65^{\circ}C$에서도 성장하였으며, 형태학적 및 생리학적인 특징들로부터 모두 Bacillus stearothermophilus로 동정할 수 있었다. 3분리균주 및 Bacillus stearothermophilus ATCC 12980의 두유(pH 7.0) 및 pH 7.0 완충용액 내 에서의 열저항성을 측정하기 위하여, 각각의 균주에 대한 110, 115, 121 및 $125^{\circ}C$에서의 열치사에 관한 직선회귀식을 구하였다. 두유의 구성성분이 포자의 열저항성을 증가시킨다는 점은 뚜렷하게 확인되지 않았으며, 균주간에 있어서도 D값의 대소관계가 온도에 따라 변화하여, 주어진 모든 온도에서 일관성있게 가장 큰 열 저항성을 보인 균주는 없었다. 4균주의 평균 D값은 110, 115, 121 및 $125^{\circ}C$에서 각각 77.27, 20.20, 2.76 및 1.39분이었으며, 평균 z값은 $8.36^{\circ}C$이었다.

• 복식
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• 제58권9호
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• pp.68-80
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• 2008

The purpose of this study is, as a prior stage to produce manufactured medical goods, to examine literature on the medicinal efficacy of natural dyes that can be used to produce medical goods, and to experiment the possibility of dyeing of some medicinal ingredients that have not been used as natural dyes until now. For this study, 44 types of medicinal ingredients such as Gyomaekchil(buckwheat), Nohoiyeob(aloe), Pogongyounng(dandelion), and Jibooja(broom cypress) were used. First, they were classified by a thermal sensation such as hot, warm, neutral, cool, and cold feeling, and by their characteristics of complex tastes such as sweet, sour, bitter, salty, pungent, astringent, and flat tastes. And then they were dyed with two types of mordant, resulting to a total of 132 types of dyed cloths. The 132 dyed cloths could be classified as five types of colors: 89 types(67.42%) of yellow series, 25 types(18.94%) of yellow-red series, 6 types(4.55%) of green-yellow series, 6 types(4.55%) of purple series, and 6 types(4.55%) of purple-blue series. The results of this study found that there were various medicinal ingredients that had efficacy to cure skin disorders and also could be used as natural dyes.