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한약재 추출물, 가열 및 코팅 처리가 신선절단 사과의 갈변도에 미치는 영향
정헌식 ( Hun Sik Chung ),이주백 ( Joo Baek Lee ),문광덕 ( Kwang Deog Moon ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2012 한국식품저장유통학회지 Vol.19 No.6
신선절단 ``후지`` 사과의 갈변도에 화학물질(ascorbic acid, cystein, sodium chloride, magnesium chloride, calcium chloride, histidine: 1% d 용액), 한약재(갈근, 당귀, 산약, 오약, 천궁, 황기: 1% 추출액), 가열(절단과실과 원형과실, 40-60℃증류수) 및 코팅(albumin, dextrin, sucrose poly ester, whole soy flour: 0.5-4% 용액) 처리가 미치는 영향을 조사하였다. 각 처리방법별 신선절단 사과의 갈변도는 1% calcium chloride 용액 처리, 황기 추출물 처리, 3% dextrin과 1%whole soy flour 코팅 처리에 의해 가장 낮은 수준을 보였다. 가열처리의 갈변도는 절단과실 처리시에는 50℃에서, 원형과실 처리시에는 45℃에서 각각 처리한 시료에서 가장 낮은 수준을 보였다. 이로써 신선절단 사과의 갈변에 대한 한약재 추출물, 가열 및 코팅 처리의 억제 효과와 조건이 확인되었고, 이러한 방법은 화학물질을 부분적으로 대체할 수 있을 것으로 판단된다. The effects of dip treatments of chemicals (ascorbic acid, cystein, sodium chloride, magnesium chloride, calcium chloride, histidine: 1% solution) and medicinal herbs (Pueraria thunbergiana, Angelica gigas, Dioscorea japonica, Lindera strychifolia, Cnidium officinale, Astragalus membranaceus: 1% extracts), heat shock (40-60℃ water), and edible coating (albumin, dextrin, sucrose poly ester, whole soy flour: 0.5-4% solution) on the browning degree of fresh-cut ``Fuji`` apples were studied. Among the each treatment methods, the surface browning of fresh-cut apples was best retarded by calcium chloride dip, Astragalus membranaceus dip, 45-50℃ heat shock, coating with 3% dextrin or 1% whole soy flour. The results suggest that the treatments of medicinal herbs extracts, heat shock, and edible coating can be used as alternative for the use of chemical agents for the antibrowning of fresh-cut apples
절단방법이 신선절단 사과와 엽채류의 품질에 미치는 영향
정헌식 ( Hun Sik Chung ),정문철 ( Moon Cheol Jeong ),문광덕 ( Kwang Deog Moon ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2012 한국식품저장유통학회지 Vol.19 No.2
Whole apples were cut with a sharp or dull knife, and whole cabbages and crisp lettuce heads were cut into salad or thin strips with a knife or by hand. The fresh-cut apples, cabbages, and lettuce were packed in low-density polyethylene bags and kept at 4°C, and their qualities were investigated. Browning and softening of the apples that were cut with a sharp knife were more delayed than those of the apples that were cut with a dull knife. The soluble solids and pH of the fresh-cut apples were not affected by the sharpness of the cutting blade. The browning indexes of the fresh-cut cabbages and lettuce were significantly lower in the samples that were cut with a knife than by hand and in the samples that were cut into large pieces. The results suggest that the cutting blade sharpness, cutting tools, and cut types affected the quality of the fresh-cut apples and leafy vegetables, and that the cutting methods which minimized the cutting damage should be used to retard the browning and softening of the produce.