Traditional food packaging films made of plastic have caused serious damage to the environment.Chitosan film is a potential substitute but it is weak in antioxidant activity.In this study,the extract and chitosan from...Traditional food packaging films made of plastic have caused serious damage to the environment.Chitosan film is a potential substitute but it is weak in antioxidant activity.In this study,the extract and chitosan from American cockroach were combined to produce a new environment-friendly chitosan film for food packaging.The chitosan film was easily degraded by water,avoiding accumulation in the environment.The addition of American cockroach extract improved the antioxidant activity of the chitosan film(up to 50 times higher than that of pure chitosan film when considering reducing capacity)and did not weaken its efficient antibacterial activity.In practical application,the packaged food was protected by the chitosan film from fast decay and oxidation for 15 days and 48 h,respectively.These results suggested that the new chitosan film possessed the potential for food packaging and improved the value of American cockroach.展开更多
美洲大蠊(Periplaneta americana L.)是传统的中药材,有活血散瘀、解毒消疳的功效,具有多种活性成分和广泛的药理作用,临床上常用于金创、外伤、烧伤、烫伤、溃疡、褥疮之创面及胃痛出血等疾病。近年来,美洲大蠊在消化系统疾病方面广泛...美洲大蠊(Periplaneta americana L.)是传统的中药材,有活血散瘀、解毒消疳的功效,具有多种活性成分和广泛的药理作用,临床上常用于金创、外伤、烧伤、烫伤、溃疡、褥疮之创面及胃痛出血等疾病。近年来,美洲大蠊在消化系统疾病方面广泛应用,疗效显著。本文对近年来有关美洲大蠊的化学成分、防治消化系统疾病的药理作用及临床作用进行综述,为美洲大蠊药材的进一步研究和开发提供参考。展开更多
基金supported by the National Natural Science Foundation of China(Nos.31830084,32070466&31970440)“the Fundamental Research Funds for the Central Universities”,Nankai University(Nos.96172158,96173250&91822294).
文摘Traditional food packaging films made of plastic have caused serious damage to the environment.Chitosan film is a potential substitute but it is weak in antioxidant activity.In this study,the extract and chitosan from American cockroach were combined to produce a new environment-friendly chitosan film for food packaging.The chitosan film was easily degraded by water,avoiding accumulation in the environment.The addition of American cockroach extract improved the antioxidant activity of the chitosan film(up to 50 times higher than that of pure chitosan film when considering reducing capacity)and did not weaken its efficient antibacterial activity.In practical application,the packaged food was protected by the chitosan film from fast decay and oxidation for 15 days and 48 h,respectively.These results suggested that the new chitosan film possessed the potential for food packaging and improved the value of American cockroach.
基金Supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China(20093401110006)the Natural Science Foundation of the Department of Education of Anhui Province(KJ2010A026)+1 种基金the Introduction Project of Academic and Technology Leaders in Anhui University(32030066)the Innovative Research Team Program of 211 Project in Anhui University~~
文摘美洲大蠊(Periplaneta americana L.)是传统的中药材,有活血散瘀、解毒消疳的功效,具有多种活性成分和广泛的药理作用,临床上常用于金创、外伤、烧伤、烫伤、溃疡、褥疮之创面及胃痛出血等疾病。近年来,美洲大蠊在消化系统疾病方面广泛应用,疗效显著。本文对近年来有关美洲大蠊的化学成分、防治消化系统疾病的药理作用及临床作用进行综述,为美洲大蠊药材的进一步研究和开发提供参考。