Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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The Antimutagenic Activity of Sulfated Alginate and Its Effect on the Growth of Lactobacillus acidophillus

황 흡착 알긴산의 Lactobacillus acidophillus 성장에 미치는 영향 및 항 돌연변이 작용

  • 강경금 (목포대학교 생명공학부 식품생물공학전공) ;
  • 박난희 (목포대학교 생명공학부 식품생물공학전공) ;
  • 김정목 (목포대학교 생명공학부 식품생물공학전공)
  • Published : 2004.04.01
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Abstract

The alginate extracted from Hizikia fusiform by the acid alkali soluble alginate (AASA) extraction method was reacted with Na$_2$SO$_4$. The amount of sulfate absorbed in the 3% alginate solution was determined about 18,435 ppm by inductively coupled plasma-atomic emission spectrometry. Both alginate and S-alginate stimulated the growth of Lactobacillus acidophilus in MRS broth and peptone water medium. The addition of S-alginate to the media showed the higher bacterial numbers than alginate supplement. There was no mutagenic activity of S-alginate in the Ames test using the Salmonella Typhimurium TA98 and TA100 strains. The S-alginate showed suppressive effect against 2-NF and MMS of mutagens.

톳으로부터 산ㆍ알칼리 (AASA) 방법으로 추출한 알긴산에 인위적으로 sulfate를 흡착시킨 후 ICP-AES를 이용해서 확인한 결과 3% alginate용액에서 1843 ppm 농도의 sulfate가 검출되었다. 배지 자체적으로 황을 함유하고 있는 MRS broth와 황이 없는 peptone water배지 에 S-alginate와 alginate를 0.25, 1, 2% 농도별로 첨가하여 Lactobacillus acidophilus를 접종한 후 배양하면서 유산균의 성장에 대한 영향을 살펴 본 결과 모든 농도에서 이들 배지에 S-alginate를 첨가한 것이 유산균의 성장을 증가시키는 것을 알 수 있었다. S-alginate와 alginate를 0.25% 첨가한 경우 유산균의 성장은 비슷한 값을 나타내었으나 농도가 증가할수록 S-alginate를 첨가한 군이 alginate만 첨가한 군보다는 유산균의 성장을 늘리는 것으로 나타났다. Ames test를 통해서 S-alginate는 돌연변이성을 전혀 나타내지 않았으며 항 돌연변이성는 직접변이원에 대하여 TA98균주는 14∼19%, TA100 균주에 대해서는 12∼17%까지의 억제율을 보였으며 2%의 S-alginate가 가장 높은 억제율을 나타내었다.

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