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Vol. 26 No. 11 (2014): Vol 26 Issue 11

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Effects of Modified Atmosphere Packaging with Chitosan to the Microbial Diversity Change of Cutlassfish (Trichiurus haumela) During Chilled Storage

https://doi.org/10.14233/ajchem.2014.17506
Wei-Qing Lan
College of Food Science and Technology, Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, P.R. China
Jing Xie
College of Food Science and Technology, Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, P.R. China
Jia-Hui Wu
College of Food Science and Technology, Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, P.R. China
Jian Li
College of Food Science and Technology, Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, P.R. China

Corresponding Author(s) : Jing Xie

jxie@shou.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 11 (2014): Vol 26 Issue 11

Abstract

The microbial diversity changes of cutlassfish (Trichiurus haumela) coated with chitosan in modified atmosphere packaging (50 % CO2 + 20 % O2 + 30 % N2) environment during chilled storage (4 ± 1 ºC) were investigated in this paper. The sensory evaluation, pH value and total viable counts (TVC) were measured in day 0, 2, 4, 6, 8, 10, 12. The strains of samples from different days were separated, purified, DNA extraction and PCR amplification. The results showed that samples coated with 10 g/L chitosan in modified atmosphere packaging environments could be kept in good qualities significantly and inhibited the growth of microorganism. The shelf-life of cutlassfish was prolonged for almost 8-9 days. At the end of spoilage period, the main change of bacteria in control sample (10d) was Pseudomonas fragi 29.5 %, Pseudomonas.fluorescens 33.4 %, Shewanella putrefaciens 32.0 %, Staphylococcus sciuri 5.1 %. The bacteria of sample (12d) with chitosan in modified atmosphere packaging were Pseudomonas fragi 98.8 % and Shewanella putrefaciens 1.2 %. Chitosan in modified atmosphere packaging could inhibit the growth of specific spoilage organism (SSO), the dominant species in controlled were Pseudomonas fragi, Pseudomonas fluorescens and Shewanella putrefaciens.

Keywords

Trichiurus haumela Chitosan Modified atmosphere packaging Microbial diversity Chilled storage
Lan, W.-Q., Xie, J., Wu, J.-H., & Li, J. (2014). Effects of Modified Atmosphere Packaging with Chitosan to the Microbial Diversity Change of Cutlassfish (Trichiurus haumela) During Chilled Storage. Asian Journal of Chemistry, 26(11), 3256–3260. https://doi.org/10.14233/ajchem.2014.17506
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