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纳他霉素-羟丙基-β-环糊精包合物的制备及其抑菌性能研究.pdf

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纳他霉素·羟丙基一13一环糊精包合物的制备 及其抑菌性能研究 李飞,毛勇4,王燕,张美丽,邓媛 (陕西省微生物研究所,西安710043) 摘要:纳他霉素(Natamycin)是一种多烯大环内酯类抗生素,为了提高其在水中的溶解度和稳定性, 增加其生物利用度,以羟丙基一13一环糊精为包合剂,采用冷冻干燥法制备纳他霉素一羟丙基一13一环糊精包 合物。通过差热分析法和紫外光谱分析法验证,说明纳他霉素已经被羟丙基一B一环糊精完全包合。研究结 和对照均对白色念珠菌、酵母菌、黑曲霉、绿色木霉、镰刀菌比较敏感,MIC值为2mg/kg,对米曲霉的抑菌 效果最差,MIC值为12mg/kg。由此说明包合物的形成可以明显改善纳他霉素的水溶性和稳定性,且包合后 不影响其对真菌的抑制效果。 关键词:纳他霉素;包合物;羟丙基一B一环糊精; 中图分类号:TS202.3 文献标识码:A 文章编号:1006—2513(2013)03—0127—05 on inclusion Studies andbacteriostaticof preparation properties of and complexnatamycin LI Yuan Fei,MAOYong+,WANGYan,ZHANGMei-li,DENG 7 (ShaanxiMicrobiologyInstitute,Xi’an10043) isa macrolideantibiotic.Theisto its and inthe study solubilitystabilitywater, Abstract:Natamyeinpolyene improve andincreasethe wasusedastheraw inclusioncom· bioavailability.Hydroxypropyl—B—cyclo—dextrinmaterial,the of was method.Theultraviolet plexnatamycin—hydroxypropyl—B—eyelodextrinpreparedbyfreeze—drying spectrum anddifferentialthermal showedthat Was includedintothe andtheinclusion analysis analysis Natamycintotally complex rate Wasmorethan concentrationwas28.31 after60d.Underthe103efu/mL Was 100%,Solubility 609/L;the mg/L bacteria inclusion andthecontrolweresensitivetoCandida concentration,thecomplex trichodermavirideandsickle valueWas Bac
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