哈尔滨商业大学学报（自然科学版）2011，Vol.27Issue(4)：581-586,6.
绒白乳菇发酵液提取物的抑茵活性及稳定性研究
Antimicrobial activity and stability of extraction from Lactarius vellereus fermenting liquor
摘要
Abstract
The inhibition activities of extraction from Lactarius vellereus fermenting liquor to some food polluted microorganisms and Altemaria alternata were studied. Simultaneously, the effects of factors on anti-A. Alternata activities were discussed. The results showed that the extraction had stronger inhibition on bacteria than that on epiphyte, that is, the inhibition ability on Staphylococcus aureus was the strongest, then was Bacillus subtilis and Escherichia coli, and then was Saccharomyces cerevisiae, the weakest was on Rhizopus nigricans and As-pergillus niger. The inhibition on the growth of A. Alternata was strong, and the LC50 on mycelium growth and spore germination was 0.912 mg/mL and 0. 609 mg/mL, respectively. The inhibition ability of the extraction did not change significantly within the wider range of pH value, and the extraction had certain ability of anti-oxidation and anti-deoxidization. The extraction had good thermo-stability. Lower concentration of Fe3+ , Fe2+ and Zn2 + had no destructive effects on the extract, while Cu2 + and Al3+ had strong destruction. The inhibition ability of extraction was not affected with the change of macro-elements ( Na + , K+ , Mg2 +,Ca2+), ultraviolet radiation and storage-time.关键词
绒白乳菇/发酵液/提取物/抑茵活性/稳定性Key words
Lactarius vellereus/ fermenting liquor/ extraction/ antimicrobial activities/ stability分类
轻工纺织引用本文复制引用
计红芳,张令文,王青,张慧蓉,宋瑞清..绒白乳菇发酵液提取物的抑茵活性及稳定性研究[J].哈尔滨商业大学学报（自然科学版）,2011,27(4):581-586,6.基金项目
国家自然科学基金资助项目(30271083)和黑龙江省国际合作项目(WC05CO1). （30271083）
