리기다소나무 잎추출물의 항균력을 조사한 결과, 이상의 농도에서 뚜렷한 항균활성을 보였고, 광역의 병원성 및 부패성 미생물들에 대하여 항균활성을 나타내었다. 특히, 리기다소나무 알코올 추출물에서는 의 낮은 처리농도에서도 뚜렷한 항균력을 나타내었다. 또한 추출물의 농도가 증가함에 따라 미생물의 생육저해환의 직경도 커졌으며, 알코올추출물에서 좀 더 뚜렷한 항균력을 관찰할 수 있었다. 또한, 리기다소나무 잎추출물은 넓은 범위의 열 및 pH에서 안정성을

Pinus rigida Miller leaf extract (PRLE) showed antimicrobial activity remarkably against food pathogenic and spoilage bacteria at concentrations of . Alcohol-soluble PRLE had higher antimicrobial activity against Staphylococcus aureus and E-coli than any other-soluble PRLE such as butanol, ethyl acetate, ether and water. As PRLE concentration increased alcohol-soluble PRLE increased the remarkable inhibitory zone of microbial growth on the microbial media. PRLE showed good stability against temperature and pH in the range of and , respectively. This may indicate that PRLE can be a potential anti-microbial agent for industrial application. In addition, SEM of Listeria monocytogenes suggested that it antimicrobial component would perturb the functions of microbial cell membranes synergistically. In the feeding experiment the formaldehyde content in the serum of formalin-fed and PRLE-treated me decreased remarkably due to the lysis of formaldehyde and the rate of hemoglobin biosynthesis was recovered to the orignal state within a short breeding time.

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