Matouskova Petra, Marova Ivana, Bokrova Jitka, Benesova Pavla
Brno University of Technology, Faculty of Chemistry, Department of Food Chemistry and Biotechnology and Materials Research Centre, Purkynova 118, CZ-61200 Brno, Czech Republic.
Food Technol Biotechnol. 2016 Sep;54(3):304-316. doi: 10.17113/ftb.54.03.16.4413.
Resistance of microorganisms to antibiotics has increased. The use of natural components with antimicrobial properties can be of great significance to reduce this problem. The presented work is focused on the study of the effect of encapsulation of selected plant and animal antimicrobial substances (herbs, spices, lysozyme and nisin) on their activity and stability. Antimicrobial components were packaged into liposomes and polysaccharide particles (alginate, chitosan and starch). Antimicrobial activity was tested against two Gram-positive ( and ) and two Gram-negative ( and ) bacteria. Encapsulation was successful in all types of polysaccharide particles and liposomes. The prepared particles exhibited very good long-term stability, especially in aqueous conditions. Antimicrobial activity was retained in all types of particles. Liposomes with encapsulated herb and spice extracts exhibited very good inhibitory effect against all tested bacterial strains. Most of herbal extracts had very good antimicrobial effect against the tested Gram-negative bacterial strains, while Gram-positive bacteria were more sensitive to lysozyme particles. Thus, particles with co-encapsulated herbs and lysozyme are more active against different types of bacteria, and more stable and more effective during long-term storage. Particles with encapsulated mixture of selected plant extracts and lysozyme could be used as complex antimicrobial preparation with controlled release in the production of food and food supplements, pharmaceutical and cosmetic industries.
微生物对抗生素的耐药性有所增加。使用具有抗菌特性的天然成分对于减少这一问题可能具有重要意义。目前的工作重点是研究选定的植物和动物抗菌物质(草药、香料、溶菌酶和乳链菌肽)的包封对其活性和稳定性的影响。抗菌成分被包装到脂质体和多糖颗粒(海藻酸盐、壳聚糖和淀粉)中。针对两种革兰氏阳性菌( 和 )和两种革兰氏阴性菌( 和 )测试了抗菌活性。在所有类型的多糖颗粒和脂质体中包封均成功。制备的颗粒表现出非常好的长期稳定性,尤其是在水性条件下。所有类型的颗粒都保留了抗菌活性。包封有草药和香料提取物的脂质体对所有测试的细菌菌株都表现出非常好的抑制作用。大多数草药提取物对测试的革兰氏阴性细菌菌株有非常好的抗菌效果,而革兰氏阳性细菌对溶菌酶颗粒更敏感。因此,共包封草药和溶菌酶的颗粒对不同类型的细菌更具活性,并且在长期储存期间更稳定、更有效。包封有选定植物提取物和溶菌酶混合物的颗粒可作为具有控释功能的复合抗菌制剂用于食品和食品补充剂、制药和化妆品行业的生产中。