摘要
目的构建荷载紫苏醛的递送体系,降低紫苏醛的刺激性,提高其亲水性应用。方法利用液-液分散法制备荷载紫苏醛的玉米醇溶蛋白(zein)纳米粒,加入稳定剂酪蛋白酸钠(casein sodium,NaCas),再结合壳聚糖(chitosan,CTS)制得递送体系。体系构建后对纳米粒的粒径、电位、包封率、冻干复溶性等进行表征评价。在此基础上,通过分析黄曲霉的菌丝生长、生物量、孢子萌发和次级代谢产物黄曲霉毒素B1(aflatoxin B1,AFB1)含量,以比较游离紫苏醛和荷载紫苏醛的zein-NaCas-CTS纳米粒的抑菌效果。结果当zein/NaCas/CTS添加量比为1.00:1.00:2.00时,荷载紫苏醛的zein-NaCas-CTS纳米粒粒径为342.27 nm,电位为+49.37 mV,包封率达到98.18%。荷载紫苏醛质量浓度为1/3 mg/mL的zein-NaCas-CTS纳米粒对菌丝生长、生物量和AFB1的抑制效果显著高于相同质量浓度的游离紫苏醛,而孢子萌发率无显著差异。结论基于zein-NaCas-CTS的递送体系可显著提升紫苏醛的物理特性和抑菌效果。
Objective To construct a delivery system loaded with perillaldehyde,reduce the irritation of perillaldehyde and improve its hydrophilic application.Methods Perillaldehyde-loaded zein-casein sodium(NaCas)nanoparticles were prepared by liquid-liquid dispersion method,along with chitosan(CTS)was added to stabilize NaCas.The particle size,potential,encapsulation rate and resolubility of the nanoparticles were evaluated after the system was constructed.Furthermore,the antifungal effects of free perillaldehyde and zein-NaCas-CTS nanoparticles loaded with perillaldehyde were compared by analyzing the mycelial growth,biomass,spore germination and secondary metabolite aflatoxin B1(AFB1)content of Aspergillus flavus.Results The particle size of zein-NaCas-CTS nanoparticles loaded with perillaldehyde was 342.27 nm,the potential was+49.37 mV,and the encapsulation rate reached 98.18%when the zein/NaCas/CTS mass ratio was 1.00:1.00:2.00.The inhibitory effect of zein-NaCas-CTS nanoparticles loaded with 1/3 mg/mL perillaldehyde on mycelial growth,biomass and AFB1 content was significantly higher than that of free perillaldehyde at the same concentration,while had no effects on the spore germination rate.Conclusion zein-NaCas-CTS system can improve the physical characteristics and antifungal effects of perillaldehyde.
作者
孙悦
唐冬青
余建梅
庞欣
朱闻蕊
秦雨昕
田俊
刘曼
SUN Yue;TANG Dong-Qing;YU Jian-Mei;PANG Xin;ZHU Wen-Rui;QIN Yu-Xin;TIAN Jun;LIU Man(School of Life Sciences,Jiangsu Normal University,Xuzhou 221116,China;Jiangsu University International Joint Laboratory of Food Safety and Microbial Functional Genomics,Xuzhou 221116,China)
出处
《食品安全质量检测学报》
CAS
2024年第8期199-207,共9页
Journal of Food Safety and Quality
基金
国家自然科学基金项目(32202180)
江苏省高等学校大学生创新创业训练计划项目(202310320073Y)。
