Physical properties and antimicrobial activity of chilled meat pads containing sodium carboxymethyl cellulose

An improved chilled meat pad consisting of nonwoven fabric containing essential oils or active powders, coated by a sodium carboxymethylcellulose (CMCNa) layer was prepared successfully. In the formation of CMCNa film, effects of four acids and pH were examined to obtain optimal results in terms of...

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Bibliographic Details
Published in:Journal of applied polymer science 2013-01, Vol.127 (1), p.612-619
Main Authors: Wang, Shishuai, Kuang, Xuan, Li, Bin, Wu, Xiaofang, Huang, Ting
Format: Article
Language:English
Subjects:
Application fields
Applied sciences
Bacteria
Biological and medical sciences
Chilled
CMC film
crosslinking
essential oil
Essential oils
essential powder
Exact sciences and technology
Food industries
Fundamental and applied biological sciences. Psychology
Materials science
Meat
Polymer industry, paints, wood
Polymers
Reproduction
Sodium
Sugar industries
swelling
Technology of polymers
Water loss
water sorption
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Summary:An improved chilled meat pad consisting of nonwoven fabric containing essential oils or active powders, coated by a sodium carboxymethylcellulose (CMCNa) layer was prepared successfully. In the formation of CMCNa film, effects of four acids and pH were examined to obtain optimal results in terms of water, saline, and simulative blood sorption. Fourier Transform Infrared spectroscopy, scanning electron microscopy, and differential scanning calorimetry were used to evaluate the CMCNa film. Also, antimicrobial activities were examined in relation to water loss, aerobic bacterial count, and pH. When the pH value was 4.6 adjusted by citric acid, CMCNa film had the largest absorbent capacity. In the first 6 days, pads with essential oils were superior to pads with powders but inhibiting effect decreased with essential oil releasing. The pad with clove powder gained the best inhibiting effect and could extend the shelf life of chilled meat to 10 days. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
ISSN:0021-8995
1097-4628
DOI:10.1002/app.37828