원문정보
초록
영어
A strain producing biosurfactant, GBM 3309 was isolated from the soil sample of Kyebang Mountain by the antifungal and emulsification assessment. From 16s rDNA analysis, strain GBM 3309 was related to Bacillus subtilis. The growth, surface tension, emulsifying activity and stability of the isolate were investigated by physical and chemical tests. The emulsifying
stability reached a highest degree when tributyrin was used as a substrate, suggesting that its function was similar to Tween 20 and Tween 40, compared with a variety of synthetic surfactant. The high emulsifying activity was also obtained when soybean oil and crude oil were used as the substrate. The biosurfactant substance from Bacillus subtilis. GBM 3309 were also analyzed
by ESI-MS, GC-MS and MALDI-TOF mass spectra, respectively.