데침 조건과 해동 방법이 머위대의 품질 특성에 미치는 영향
(주)코리아스칼라
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- 2016.04.02
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서지정보
ㆍ발행기관 : 한국산업식품공학회
ㆍ수록지정보 : 산업식품공학 / 19권 / 3호
ㆍ저자명 : 이상윤, 최수영, 한혜민, 유선미, 최미정
영어 초록
The pre-treatment conditions of butterbur stem such as blanching, freezing, and thawing were studied to optimize it for producing frozen butterbur stem to improve its storage ability. Butterbur stems were hot water blanched at 100oC for 3, 5, or 7 min respectively and then soaked in cold water. After peeling out and cutting into blocks (4.5×1.0×0.5 cm), butterbur stems were air-dried for 5, 10, or 15 min respectively. Dried samples were analyzed for their physicochemical properties. With blanching, the hardness value increased from 2.91 kg to 3.64 kg (p>0.05); however, adhesiveness decreased drastically after 5 min of blanching (p<0.05), which changed to a crisp texture. In addition, considering other physicochemical properties, it was assumed that 5-min blanching was optimal pre-treatment to maintain the original quality of butterbur stem for freezing. Five-minute blanched butterbur stems were airdried 5 min, frozen and thawed with several methods, and analyzed for their properties. Considering the thawing loss, hardness, and color change, the fastest freezing and thawing method had the lowest changes on the quality of frozen butterbur stem. Therefore, to produce frozen butterbur stem, it was assumed that immersion freezing and running water or room temperature thawing (25oC) were the best process.
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