香蕉假茎制备抗菌敷料的性能分析  

Performance analysis of the antibacterial wound dressing using banana pseudostem

作　　者：张美玲[1] 邵建皓 孙亚虎 郭凝廷 刘倩倩 苏慧莹 王瑞[1] 王占刚[1] 郑广伟 庄旭品[1] Zhang Meiling;Shao Jianhao;Sun Yahu;Guo Ningting;Liu Qianqian;Su Huiying;Wang Rui;Wang Zhangang;Zheng Guangwei;Zhuang Xupin(Tiangong University,Tianjin 300387,China;Henan Bangwei Hi-Tech Special Textiles Co.,Hebi 456761,China)

机构地区：[1]天津工业大学,天津300387 [2]河南邦维高科特种纺织品有限公司,鹤壁456761

出　　处：《农业工程学报》2022年第21期180-187,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：天津市科技计划项目(20YDTPJC01380);企业委托项目(2019-1200-24-001150)。

摘　　要：为探究香蕉假茎制备为抗菌敷料的可行性,该研究以香蕉假茎为原料,提取香蕉纤维素,经超声粉碎获得香蕉纳米纤维素。经冷冻干燥制成5种浓度的香蕉纳米纤维素气凝胶敷料,探讨气凝胶敷料的性能。结果表明,当香蕉纳米纤维素悬浮液浓度为10 g/L时,所制备气凝胶敷料的溶胀率为3080%,保水率为1590%,水蒸汽透过率为810 g/(m^(2)·24 h),有利于吸收伤口处的组织液和维持湿度平衡。在抗菌性的测试中,所制备的气凝胶敷料对大肠杆菌和金黄色葡萄球菌有抑制作用。研究表明香蕉假茎在生物医学方面的应用具有潜力。More than 100 million tons of banana pseudostem can be produced in the world every year.A great challenge has been posed on the waste pollution of banana pseudostem.Conventional treatments(such as burying or burning)have wasted land resources or polluted the environment.New solutions are of great significance to protect the environment.The main component of banana pseudostem is cellulose,one of the most abundant natural polymers in wound dressings in recent years.Antibacterial dressings can be expected to prepare from the banana pseudostem for less waste pollution.The ideal wound dressing is characterized by its low cost,stable antibacterial properties,absorbing excess tissue fluid,and maintaining the humidity of the wound.Nanocellulose aerogel can be used as a dressing to accelerate wound healing,due to its low density,high porosity,and surface area.In this study,the banana nanocellulose was extracted from the banana pseudostem to prepare the aerogel dressing.The full utilization was realized on the natural antibacterial properties and excellent biocompatibility of banana cellulose,as well as the adsorption ability of aerogel.Banana cellulose was first fabricated by crushing,benzyl alcohol extraction,bleaching,and alkali treatment from raw banana fiber.The ultrasonication was then used to gain the banana nanocellulose.Finally,the aerogels with different banana nanocellulose concentrations were prepared by freeze-drying.The structure and composition were analyzed by the SEM(Scanning Electron Microscope),TEM(Transmission Electron Microscope),FTIR(Fourier Transformation Infrared Spectra),XRD(X-Ray Diffractometer),whereas,the TG was for the raw banana fiber,banana cellulose,and banana nanocellulose.The test was carried out to analyze the structure of the aerogel and the swelling rate,water retention rate,water vapor transmission rate,and antibacterial properties of the aerogel dressings.The results showed that the hemicellulose and lignin were removed from the raw banana fiber.The fiber diameter was reduced from 135

关 键 词：纤维 环境工程 纳米 香蕉假茎 气凝胶 医用敷料 

分 类 号：S563.9[农业科学—作物学]