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KMID : 0380619940260030283
Korean Journal of Food Science and Technology
1994 Volume.26 No. 3 p.283 ~ p.287
Quality Changes of Salted Chinese Cabbage by Packaging Methods during Storage


Abstract
The effects of packaging methods on the storage properities of salted Chinese cabbage were examinined during 3-week storage. The weights of salted Chinese cabbage decreased to 69-77% by water loss and salinities decreased from 2.6% to 2.0%, respectively. The pH decreased from 6.4 to 6.2 for 1- week storage in all cases, but the pH increased to 6.6 in non packaging(Non-P), maintained at 6.2 in PVC container packaging(PVC), and decreased continuously to 5.5 and 5.7 in LDPE packaging (LDPE) and HDPE packaging(HDPE), repectively for 3-week storage. Reducing sugars increased slightly for 1-week storage for the relative concentration effect by water loss, but decreased to 1.8% for 3-week storage because of the microbial fermentation. Cutting force increased in LDPE for the continuous osmosis phenomena but decreased in Non-P for the putrefaction. As the results, LDPE was found to be the most effective packaging method.
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