Thermo-/pH-responsive preservative delivery based on TEMPO cellulose nanofiber/cationic copolymer hydrogel film in fruit packaging

被引：49

作者：

Shaghaleh, Hiba ^{[1
,2
]}

Hamoud, Yousef Alhaj ^{[3
]}

Xu, Xu ^{[1
]}

Liu, He ^{[2
]}

Wang, Shifa ^{[1
]}

Sheteiwy, Mohamed ^{[4
,5
]}

Dong, Fuhao ^{[1
]}

Guo, Lizhen ^{[1
]}

Qian, Yuehan ^{[1
]}

Li, Pengfei ^{[6
]}

Zhang, Shuangsheng ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Jiangsu Key Lab Biomass Based Green Fuels & Chem, Jiangsu Prov Key Lab Chem & Utilizat Agroforest B, Coll Chem Engn,Coinnovat Ctr Efficient Proc & Uti, Nanjing 210037, Peoples R China

[2] Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China

[3] Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China

[4] Mansoura Univ, Fac Agr, Dept Agron, Mansoura 35516, Egypt

[5] Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

[6] Guangxi Univ Nationalities, Guangxi Collaborat Innovat Ctr Chem & Engn Forest, Guangxi Key Lab Chem & Engn Forest Prod, Nanning 530006, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2021年 / 183卷

基金：

中国国家自然科学基金;

关键词：

Carboxyl-nanofibrillated cellulose; Poly(N-isopropyl acrylamide-co-acrylamide); Stimuli-responsive delivery; Natamycin release mechanism; Climacteric fruit; Emerging active packaging; CONTROLLED-RELEASE; POLY(N-ISOPROPYLACRYLAMIDE) NANOHYDROGELS; SENSITIVE HYDROGEL; FOOD; NATAMYCIN; PH;

D O I：

10.1016/j.ijbiomac.2021.05.208

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Hydrogels have great potential in food packaging. However, stimuli-responsive preservative delivery-based hydrogels for emerging active packaging have not yet been explored. Herein, Unprecedented pH/temperatureresponsive hydrogel films for emerging active climacteric fruit packaging were developed based on TEMPOoxidized nanofibrillated cellulose (TOCNFs) from wheat straw with food-grade cationic-modified poly(Nisopropyl acrylamide-co-acrylamide) (CPNIPAM-AM). TOCNF incorporation into CPNIPAM-AM revealed desirable enhancement of characterization, antimicrobial properties, and pH/thermal-responsive behaviour. In-vitro delivery and release mechanism studies with natamycin revealed the fastest release rates in preferred low pH media, up to 32.1 times higher than that under neutral conditions via anomalous diffusion. Applying a thermal stimulus increased natamycin release rates, providing 1.5-21% gradual-additional pulses by Fickian diffusion. The final hydrogel film showed efficient decay control in response to stimuli of the climacteric fruit environment with safe, recyclable, and feasible application demonstrating the significant potential to be used as an alternative-sustainable material for stimuli-triggered preservative delivery in climacteric fruit packaging.

引用

页码：1911 / 1924

页数：14

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