Anticariogenic Activity and Glucosyltransferase Inhibitory Effects of Extracts from Pine Needle and Twig

솔잎 및 소나무 가지 추출물의 항충치 활성 및 glucosyltransferase 억제 효과

  • Published : 2007.06.30

Abstract

To investigate anticariogenic effects of extracts from pine needles and twigs, we measured the extracts' antimicrobial activities against Streptococcus mutans, their glucosyltransferase (GTase) inhibitory effects and their stabilities under various conditions of heat and pH. The 70% ethanol extracts of pine needles and twigs showed greater antimicrobial activities against S. mutans than the hot water extracts, and the pine twig extracts showed greater antimicrobial activity than the pine needle extracts. More specifically, the n-hexane fractions of the pine needles and twigs had the greatest effects against S. mutans, and their minimal inhibition concentration (MIC) was 0.6 mg/mL. The results of the extracts' GTase inhibitory effects indicated that the 70% ethanol extracts had greater effects than hot water extracts, and the pine twig extracts showed greater effects than the pine needle extracts. The antimicrobial activity against S. mutans for the pine needle n-hexane traction was greatly reduced as temperature increased, and was also largely affected by changes in pH. These results suggest that extracts from pine needles and twigs have anticariogenic effects and could be used as anticariogenic food additives.

솔잎과 소나무 가지의 항충치 효과와 기능성 소재로서의 활용 가능성을 조사하기 위하여 추출물과 용매 분획의 S. mutans에 대한 항균효과, GTase 활성 억제효과 그리고 열과 pH 에 대한 안정성을 측정하였다. 열수추출물 보다는 70% EtOH 추출물이, 솔잎보다는 가지 추출물이 S. mutans에 대한 생육저해 효과가 큰 것으로 나타났으며, 특히 n-hexane 분획의 MIC 는 0.6 mg/mL로서 S. mutans에 대해 가장 높은 항균효과를 나타내었다. 그리고 솔잎과 가지 추출물의 GTase 활성 억제 효과는 S. mutans에 대한 생육억제 효과 결과와 마찬가지로 열수추출물 보다는 70% EtOH 추출물이, 솔잎 보다는 가지 추출물이 GTase 활성 억제 효과가 큰 것으로 나타났다. 한편 솔잎의 n-hexane은 열처리 온도가 증가함에 따라 S. mutans에 대한 항균력이 크게 감소하였고 pH의 변화에도 크게 영향받는 것으로 나타났다.

Keywords

References

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