School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea.
Food Chem Toxicol. 2011 Feb;49(2):403-7. doi: 10.1016/j.fct.2010.11.015. Epub 2010 Nov 18.
This study was carried out to evaluate the anticandidal effects of bioconverted product, obtained from the microbial conversion of cabbage (Brassica oleracea) by a bacterial strain Pseudomonas syringe pv. T1 (Ps-T1) against various isolates of Candida species. The diameters of zones of inhibition of bioconverted product of cabbage (10 μl, corresponding to 500 μg/disc) against Candida albicans KACC 30003 and 30062, Candida geochares KACC 30061, Candida saitoana KACC 41238 and Candida glabrata P00368 were found between 10±1 and 16±0.8 mm. The bioconverted product was tested for the minimum inhibitory and minimum fungicidal concentration values against the tested pathogens which were found in the range of 125-500 and 125-500 μg/ml, respectively. On the viable counts of the tested fungal pathogens, the bioconverted product showed a remarkable anticandidal effect. Also the study of using scanning electron microscopy on the morphology of C.albicans KACC 30062 revealed potential detrimental effect of bioconverted product at MIC concentration. The results of this study suggest that bioconverted product of cabbage by Ps-T1 holds potential therapeutic value and medicinal significance to control Candida species.
本研究旨在评估由细菌菌株 Pseudomonas syringe pv. T1(Ps-T1)通过微生物转化白菜(Brassica oleracea)获得的生物转化产物对各种念珠菌属分离株的抗真菌作用。白菜生物转化产物(10 μl,相当于 500 μg/disc)对白色念珠菌 KACC 30003 和 30062、格氏念珠菌 KACC 30061、司氏念珠菌 KACC 41238 和光滑念珠菌 P00368 的抑菌圈直径为 10±1 至 16±0.8mm。生物转化产物对测试病原体的最低抑菌浓度和最低杀菌浓度值进行了测试,结果分别在 125-500 和 125-500 μg/ml 范围内。在测试真菌病原体的活菌计数中,生物转化产物显示出显著的抗真菌作用。此外,通过扫描电子显微镜观察白色念珠菌 KACC 30062 的形态,发现生物转化产物在 MIC 浓度下具有潜在的有害作用。本研究结果表明,Ps-T1 转化的白菜生物转化产物具有控制念珠菌属的潜在治疗价值和药用意义。