文献类型：期刊文献

英文题名：An insect lac blanket-mimetic and degradable shellac hydrogel/chitosan packaging film with controllable gas permeation for fresh-cut vegetables preservation

作者：Ma, Jinju[1,2] Liu, Yupeng[3] Xu, Juan[1,4] Chen, Youqing[1] Liu, Lanxiang[1,5] Zhang, Hong[1]

第一作者：Ma, Jinju

通信作者：Chen, YQ[1];Zhang, H[1]

机构：[1]Chinese Acad Forestry, Inst Highland Forest Sci, Kunming 650233, Peoples R China;[2]Nanjing Forestry Univ, Nanjing 210037, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[4]Natl Forestry & Grassland Adm, Key Lab Breeding & Utilizat Resource Insects, Kunming 650233, Peoples R China;[5]Natl Forestry & Grassland Adm, Res Ctr Engn & Technol Characterist Forest Resourc, Kunming 650233, Peoples R China

年份：2024

卷号：275

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20242916713222);Scopus(收录号：2-s2.0-85198522673);WOS:【SCI-EXPANDED(收录号:WOS:001288910700001)】；

基金：This study was financially supported by the National Natural Science Foundation of China (grant NO. 32201507) and Yunnan Fundamental Research Projects (grant NO. 202301AT070176) .

语种：英文

外文关键词：Biomimetic-shellac hydrogel/chitosan film; Gas permeability regulation; Fresh-cut vegetables preservation

摘要：Fresh-cut products are extremely perishable due to the processing operations, and the atmosphere environment, especially CO2, 2 , O2 2 and H2O, 2 O, could profoundly affect their shelf life. Herein, an insect "lac blanket"-mimetic and facile strategy was proposed for fresh-cut vegetables preservation, employing porous shellac hydrogel micro- particles as gas "switches" in chitosan film to regulate CO2, 2 , O2 2 and H2O 2 O vapor permeability. Thus, the shellac hydrogel/chitosan hybrid film presented the controllable and wide range of gas permeability, compared with the chitosan film. The shellac-COOH nanoscale vesicles aggregated to form shellac hydrogel network via hydrophobic binding. The shellac hydrogel microparticles played a certain lubricating effect on the hybrid film casting solution. The hydrogen bond network between shellac hydrogel and chitosan contributed to the excellent mechanical properties of the hybrid film. The hybrid film also exhibited remarkable water-resistant, antifogging properties, optical transparency and degradability. The hybrid packaging films prepared through this strategy could adjust the internal gas (CO2, 2 , O2, 2 , H2O 2 O and ethylene) contents within the packages, and further exhibited admirable preservation performance on three fresh-cut vegetables with different respiratory metabolisms. This gas permeation-controlled strategy has great potential in fresh food preservation and various other applications that need a modified atmosphere.