CAJ | 학술논문

目的　研究19种氨基酸对大肠杆菌、金黄色葡萄球菌和枯草芽孢杆菌的抑菌作用。方法　用氨基酸饱和液滤纸片分别对上述菌的每个混菌液培养基平板做定性抑菌实验；将有抑菌作用的氨基酸不同浓度对此三种菌的LB培养基混菌液做定量抑菌实验。结果　半胱氨酸对金黄色葡萄球菌有较强的抑制作用，最佳抑菌时间为6 h，最适抑菌浓度为0.625%，此条件下抑菌率为92.62%。结论　半胱氨酸可以抑制金黄色葡萄球菌。
목적　연구19충안기산대대장간균、금황색포도 구균 화고초아포간균적억균작용。방법　용안기산포화액려지편분 별대상 술균적매개혼균액배양기평판주정성억균실험；장유억균작용적안기산불동농도대차삼충균 적LB배양기혼균액주정량억균실험。결과　반광안산대금황색 포도구균유교강적억제작용，최가억균시간위6 h，최괄억균농도위0.625%，차조건하억균 솔위92.62%。결론　반광안산가이억제금황색포도구균。
Purpose　The aim is to study the inhibiting effect s of nineteen amino acids to E.coli,St.aureus and B.Subtilis.Metho ds　The qualitative inhibition of nineteen amino acids on E.coli ,St.aureus and B.Subtilis was determined using filter papers treated by saturated amino acids placed on the bacteria medium dish.The quantitative inhibi ting effects of the amino acids which were proved to have inhibition to these th ree bacteria were determined in the bacteria LB medium with different concentrations of amin o acids.Results　It was indicated that cysteine was used to in hibit St.aureus.The best inhibiting time was 6 hours,and the optimum of concentrat ion was 0.625% in which the inhibiting rate was 92.62%.Conclusion　 Cysteine could inhibit St. aureus.