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http://dx.doi.org/10.3746/jkfn.2002.31.4.648

Quality Improvement of Retort Oyster Food by the Coating Method  

Hur, Sung-Ho (Dept. of Food and Biotechnology, Dongeui Institute of Technology)
Lee, Ho-Jae (Dept. of Food and Biotechnology, Dongeui Institute of Technology)
Hong, Jeong-Hwa (School of Food Science, Inje University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.31, no.4, 2002 , pp. 648-652 More about this Journal
Abstract
Removing shup from oyster by aeration method and coating with edible coating materials were investigated to improve oyster quality for the retort processing. Aeration rate and pore size of nozzle were critical factors to remove shup by aeration method. Optimum aeration rate and nozzle size were 45 L/min and 0.4 mm, respectively, when aeration was peformed two times and each operation maintained for 1 minute. Sodium alginate (SA) was used for oyster as the basal coating material. However, SA affected mouth-feel when it was applied at high concentrations. Sub-coating materials including skim milk, waxy corn starch, Purity CSC, white corn starch and carboxymethylcellulose (CMC) in decreasing order showed a positive effect on improving coatability and mouth-feel. Therefore, it is suggested that 1.5% SA and 0.9% skim milk should be the optimum composition of coating materials for oyster. Browning and syneresis of the porridge containing the coated oyster were considerably inhibited as compared with the sample without the coated oyster.
Keywords
oyster; retort; coating; shup;
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