Food Science and Biotechnology

  • 제14권2호
  • /
  • Pages.275-279
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  • 2005
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  • 1226-7708(pISSN)
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  • 2092-6456(eISSN)
한국식품과학회 (Korean Society of Food Science and Technology)
권호 표지

Evaluation of Sodium Lactate Combined with Chitosans of Various Molecular Weights and Lac Pigment for the Extension of Shelf-life and Color Development of Low-fat Sausages during Refrigerated Storage

  • Chin, Koo-Bok (Department of Animal Science and Biotechnology Research Institute, Chonnam National University) ;
  • Choi, Soon-Hee (Department of Animal Science and Biotechnology Research Institute, Chonnam National University)
  • 발행 : 2005.04.30
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초록

The objective of this study was to investigate the color development and shelf-life effect of low-fat sausages (LFS) during refrigerated storage according to the additions of sodium lactate (SL), chitosan, and lac pigment. The LFS samples had $73{\sim}76%$ moisture, $3{\sim}4%$ fat, and $13{\sim}16%$ protein with a pH range of 6.4-6.6. The addition of chitosan ($MW\;=\;30{\sim}40\;kDa$) to LFS increased most textural properties. Hunter a (redness) values were increased by the addition of 0.05% lac pigment. The microbial growth of Listeria monocytogenes increased with increasing storage time. The addition of 2% SL and 0.3% chitosan with MW higher than $30{\sim}40\;kDa$ effectively inhibited the growth of L. monocytogenes. The microbial growth of L. monocytogenes was further reduced with increasing chitosan MW. These results indicated that the combination of SL with chitosans (MW > 30 kDa, 0.3%) and lac pigment (0.05%) improved shelf-life and color development in LFS during refrigerated storage.

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