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서해정 ( Hae Jung Seo ),한서영 ( Seo Young Han ),최혜선 ( Hyesun Choi ),한귀정 ( Gwijung Han ),박혜영 ( Hye Young Park ) 한국식품조리과학회(구 한국조리과학회) 2012 한국식품조리과학회지 Vol.28 No.2
In this study, cabbage ( Brassica oleracea var. capitata) Kimchi was made packed into four kinds of packaging materials, PET vessel, PP tray, OPP/AL/PE film and Nylon/PE/LLDP film, and the effects of these packaging materials on Kimchi quality characteristics, such as lactic acid bacteria counts, salinity, sugar contents, pH, total acidity, electron donating ability were examine as well as their effects on the sensory qualities after storage at a temperature of 4℃. The pH change ranged from pH 6.24 to 6.43 shortly after manufacture, and did not significantly change until 7 days of storage. However, it began to decrease rapidly after 14 days. On the 35th day of storage, the acidity was 0.79% in the PET vessel and 0.83% in OPP/AL/PE. Therefore, the PET vessel and OPP/AL/PE were considered appropriate packaging materials for Kimchi storage. The salinity did not change significantly during the storage period, and the sugar content generally increased in the four kinds of packaging materials, but decreasing after the 7th day of storage. After 14 days of storage, the Kimchi stored in the OPP/AL/PE film showed the highest lactic acid bacteria counts. Although the electron donating ability was the highest after proper time for fermentation, it decreased in all the packaging materials after the proper time for fermentation. However, the OPP/AL/PE film had an antioxidant potential of up to 93.18%. In the sensory evaluation, fermented Kimchi was found to be superior unfermented Kimchi. In addition, the Kimchi stored in the OPP/AL/PE film for 14 days showed the high score of 6.70 and 6.60 in overall preference. Therefore, the results of this study provide basic knowledge on the fermentation level and packaging material`s condition for commercialization of small packed cabbage Kimchi. Henceforth, industrialization must include a variety of studies under these conditions to increase the merchantability.
Hayun Kim,Hye-Lim Shin,Bo-Ram Park,Gwijung Han 한국산업식품공학회 2016 학술대회 및 심포지엄 Vol.2016 No.04
The purpose of this study is to evaluate the quality characteristics of blanched Capsella Bursa-pastoris with quick freezing, and thawing methods. Blanched Capsella bursa-pastoris was packed by vacuum packing (VP) and air containing packing (AP). After then, they were frozen at -20, -40, and 60℃ (immersion freezing). Then, they were stored at -20℃ during 1 week. They were thawed with normal (room temperature), running water and high frequency method. The pH and color of Capsella bursa-pastoris were not different before and after freezing. Likewise, total bacterial counts were shown without variation among them. The amount of drip from thawed Capsella bursa-pastoris was generally more in VP than AP. The cutting intensity of immersion freezing wes higher than that of other freezing methods (P<0.05). Therefore, we selected AP, immersion freezing and high frequency thawing methods for the high quality according to above results