Ultrasonication significantly enhances grafting efficiency of chitosan-ferulic acid conjugate and improves its film properties under Fenton system
文献类型： 外文期刊
作者： Xu, Haishan 1 ; Fu, Xincheng 1 ; Kong, Hui 1 ; Chen, Fei 3 ; Chang, Xia 1 ; Ding, Zemin 1 ; Wang, Rongrong 3 ; Shan, Yang 1 ; Ding, Shenghua 1 ;
作者机构： 1.Hunan Univ, Coll Biol, Longping Branch, Changsha 410125, Peoples R China
2.Hunan Acad Agr Sci, Hunan Agr Prod Proc Inst, Hunan Prov Key Lab Fruits & Vegetables Storage Pro, Changsha 410125, Peoples R China
3.Hunan Agr Univ, Coll Food Sci & Technol, Changsha 410128, Peoples R China
关键词： Ultrasonication; Fenton; Graft; Chitosan; Ferulic acid; Film properties
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）
ISSN： 0963-9969
年卷期： 2023 年 164 卷
页码：
收录情况： SCI
摘要： Ultrasonication (US)-assisted Fenton-system (US-Fenton) with different US time was developed for synthesizing chitosan (CS)-ferulic acid (FA) conjugates. The optimal US-Fenton for a suitable time was selected for preparing a film with CS-FA conjugate and its structural, functional, rheological, and physical properties were also investi-gated. Compared with Fenton-system, US-Fenton enhanced the grafting ratio of the conjugates, which increased firstly and then decreased as US time. The conjugate obtained by US-Fenton for 1 min (FUS1) possessed the highest grafting ratio (121.28 mg FA/g) and its grafting time was also shortened from 12 h to 1 min contrasted with Fenton grafted method. Structural characterization results showed that FA was conjugated on CS via ester and amide bonds with decreased crystallinity. Scanning electron microscopy and molecular weight analysis indicated that the degradation degree of CS-FA conjugates increased with US time. The DPPH and ABTS radical-scavenging activities of FUS1 were the closest to ascorbic acid, and it also showed the best antibacterial effect among the test conjugates. Accordingly, FUS1 was selected to obtain the film for contrasting with CS film. FUS1 film solution exhibited a decreased viscosity. In comparison to CS film, UV transmittance of FUS1 film approached zero, and its moisture, oxygen, and carbon dioxide permeabilities significantly decreased (P < 0.05). Moreover, its water solubility and tensile strength increased by 58.09% and 25.72% than those of CS film, respectively. Therefore, US-Fenton for 1 min could be a promising method for efficiently preparing active food package materials and FUS1 film possessed broad application prospects.
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