혐기처리 녹차의 품질 변화 억제에 적합한 포장방법

• 영문명: Optimum Packaging Techniques for Quality Control of Anaerobic Treated Green Teas
• 발행기관: 한국차학회
• 저자명: 박장현(Jang Hyun Park) 남승희(Seung Hee Nam) 송장훈(Seung Hee Nam) 조영식(Young Sik Cho) 임순희(Sun Hee Yim) 최장전(Jang Jeon Choi) 이한찬(Han Chan Lee)
• 간행물 정보: 『한국차학회지』제17권 제2호, 75~82쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2011.06.30

영문 초록

Green tea was stored at aluminum bags after N2 gas exposure for anaerobic packing. by addition of silica bag or vacuum treatment at room temperature. From on fourth month, N2 gas treated green tea showed lower amount of nitrogen, amino acids, tannins, caffeines, chlorophyll vitamin C or fatty acid, compared to that of starting green tea. In aluminum packing, green tea with silica bag was kept its original quality for one month but was not kept from 2nd months. However, green tea treated vacuum was kept its original quality for 6 months. On 6th month storage, the a-color values of green tea treated N2 gas did not show any difference either with (-10.22) or without silica bag (-10.18). These color values was similar with that of green tea treated vacuum stored for 10 month with -10.15. As result of sensory evaluation, green tea in aluminum packing for 6 months received 74 points or 73 points with or without silica bag but green tea for 12 months received 53 points or 57 points with or without silica bag. Interestingly, when green tea in aluminum packing was treated vacuum, it received 75 points with 10th months product. This results indicated that green tea in aluminum packing could be kept its quality 4 months more by vacuum treatment whether silica bag is added or not. In this study, we concluded that green tea should be stored at aluminum bags after N2 gas exposure and vacuum treatment at room temperature.

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N2 gas treated green tea stored packing method favorite quality