Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Evaluation of High Molecular Weight of Chitosan as a Replacer of Sodium Nitrite on the Physico-Chemical Properties and Microbial Changes of Low-fat Sausages During Refrigerated Storage

아질산염의 대체제로 고분자 키토산의 첨가가 저지방 소시지의 냉장 저장 중 이화학적 성상 및 미생물의 변화에 미치는 영향

  • Published : 2006.08.31
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Abstract

This study was performed to investigate if high molecular weight(～200kDa) of chitosan can be a potential possibility to replace with the sodium nitrite in low-fat sausages. pH, proximate analysis, Hunter color values, vacuum purge, expressible moisture(EM, %), texture profile analysis(TPA), shelf-life effect were measured. No differences in physico-chemical properties were observed between controls and chitosan treatments(p>0.05). Since Hunter-a-values(redness) were reduced with the addition of chitosan as compared to the sausages containing sodium nitrite and sodium lactate, it could not be replaced by chitosan completely. However, total plate counts(TPC), thiobarbituric acid reactive substance(TBARS), volatile basis nitrogen(VBN) did not differ between chitosan treatments and controls. These results indicated that the addition of chitosan into meat products would be replaced with sodium nitrite partially, but it may not be completely replaced due to the reduced Hunter-a-values. Further research will be continuously performed to screen the natural ingredients which might have a cured pigment in meat products.

본 실험은 아질산염의 대체제로서 키토산과 젖산나트륨을 이용하여 저장성과 발색도 효과를 조사하기 위해 실시하였다. 그 결과 저장성에서는 아질산염의 대체제로서 젖산나트륨과 비교하여 저장 기간 중 차이점은 나타나지 않았지만 색도에서는 아질산염을 첨가한 시료에 비해 키토산과 젖산나트륨을 첨가한 시료의 적색도가 많은 차이를 보임으로써 키토산에 의한 아질산염의 완전대체는 불가한 것으로 판단된다. 하지만 접종한 Listeria monocytogenes는 아질산염 및 젖산나트륨과는 유사한 항균효과를 보여주고 있어서 키토산의 항균효과는 나타난 것으로 평가되며 앞으로 아질산염을 대체할 수 있는 천연소재의 개발이 필요할 것으로 판단된다.

Keywords

References

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