Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of Heating Temperature on Antimicrobial Activities of Garlic Juice

가열온도가 마늘즙의 항균활성에 미치는 영향

  • Ko, Myung-Soo (Department of Food Science and Biotechnology, Dongnam Health College) ;
  • Yang, Jong-Beom (Department of Food Science and Biotechnology, Dongnam Health College)
  • 고명수 (동남보건대학 식품생명과학과) ;
  • 양종범 (동남보건대학 식품생명과학과)
  • Published : 2008.08.30
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Abstract

The antimicrobial activities of raw garlic and garlic juice heated for 30 min at $65^{\circ}C,\;80^{\circ}C,\;and\;95^{\circ}C$ were investigated. Activities against food poisoning bacteria were measured. Raw garlic and garlic juice heated at $65^{\circ}C$ showed strong antimicrobial activities, but the antimicrobial activity of garlic juice heated at $80^{\circ}C$ was much less, and no antimicrobial activity was seen in garlic juice heated at $95^{\circ}C$. Raw garlic and garlic juice heated at $65^{\circ}C$ completely inhibited the growth of Bacillus subtilis, Bacillus cereus, Staphylococcus aureus, Salmonella typhymurium, and Salmonella enteritidis at levels below 0.2%(w/v) of garlic solids. The inhibitory effects of garlic juice heated at $80^{\circ}C$ were much lower, against all bacteria tested.

본 연구에서는 가열온도를 달리하여 마늘즙을 열처리한 후 생마늘즙과 열처리 마늘즙의 식중독세균에 대한 항균활성을 조사하였다. 생마늘즙과 $65^{\circ}C$에서 30분간 열처리된 마늘즙은 공시된 모든 균주에 대해 강한 항균활성을 나타내었으나, 가열온도가 높을수록 항균활성이 낮아져 $80^{\circ}C$에서 30분간 열처리된 마늘즙은 항균활성이 크게 저하되었고, $95^{\circ}C$에서 30분간 열처리된 마늘즙은 모든 균주에 대해 항균활성을 보이지 않았다. 생마늘즙은 Bacillus subtilis, Bacillus cereus, Staphylococcus aureus 및 Vibrio parahaemolyticus에 대해 고형분 함량 0.1%의 농도에서, Salmonella typhymurium과 Salmonella enteritidis에 대해서는 고형분 함량 0.2%의 농도에서 생육을 완전히 억제시켜 강한 생육저해효과를 나타내었고, Listeria monocytogenes와 Escherichia coli에 대해서는 고형분 함량 0.8%의 농도에서 생육을 완전히 억제시켜 이 균들은 다른 균들에 비해 마늘즙에 대한 감수성이 상대적으로 낮았다. $65^{\circ}C$로 열처리된 마늘즙은 생마늘즙에 비하여 Bacillus subtilis와 Vibrio parahaemolyticus에 대해 최소저해농도가 0.1%에서 각각 0.2% 및 0.4%의 농도로 다소 높게 나타나 마늘즙을 $65^{\circ}C$에서 30분간 열처리할 경우 일부의 균에 대해 생육저해효과가 다소 저하되었으나, $80^{\circ}C$로 열처리된 마늘즙에서는 생육저해효과가 크게 저하되어 공시된 모든 균주에 대한 최소저해농도가 크게 증가되었다.

Keywords

References

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