국내 분리 방선균의 항균활성 특성 = Evaluation of Antimicrobial Activities of Domestic Actinomycete Strains

국문 초록 (Abstract)

제주도지역, 충청남도 서해안지역, 강원도 및 충청북도 자연 동굴지역, 그리고 충청북도 청원군 등지에서 채집한 205점의 토양시료로부터 분리된 총 1,322주의 방선균을 대상으로 Eschericia coli KCTC 1924, Salmonella typhimurium KCTC 1926, Staphylococcus aureus KCTC 1926, Staphylococcus aureus KCTC 1928, Candida albicans KCTC 1940등 5종의 시험균주에 대하여 항균활성을 조사하였다. 액체배양을 위해서는 G.S.S(glucose-soybean meal-starch) 배지와 fish meal 배지등 2종류의 배지를 사용하였으며 그 결과를 균분리원 지역별, 배지별, 시험균주별, 그리고 방선균 종류별로 비교하였다.

다국어 초록 (Multilingual Abstract)

It is well known that actinomycetes would be useful for screening of biologically active compounds. Not only to isolate diverse actinomycete strains but to ferment those strains effectively would be important. Seven hundred and forty six strains were isolated from Cheju province, 216 strains were from Chungnam province, 158 strains were from the natural caves at Chungbuk and Kangwon provinces and 202 strains were from Chungwon area at Chungbuk province. All of these 1,322 strains were fermented on a small scale using two different media and tested for their antimicrobial activities against four bacterial strains and one yeast strain. As the result, 12.3% of those isolates were active against Staphylococcus aureus KCTC 1916, 7.6% were Staphylococcus aureus KCTC 1928, 3.9% were Eschericia coli KCTC 1924, 3.0% were Canida albicans KCTC 1940, and 2.2% were Salmonella typhimurium KCTC 1926. About 40% of those isolates showed antimicrobial activities at both two media but the others showed at either one. According to the genus of isolated strains, Streptomyces and Micromonospora showed activities with higher frequencies than others.