Title:
METHOD FOR PREPARING CONTROLLED-RELEASE ANTIBACTERIAL PACKAGING FIBER MEMBRANE WITH INTELLIGENT RESPONSE TO PH
Document Type and Number:
WIPO Patent Application WO/2022/141749
Kind Code:
A1
Abstract:
A method for preparing controlled-release antibacterial packaging fiber membrane with intelligent response to pH. The steps thereof comprise: dissolving Eudragit L100-55 in an ethanol-water solution, adding any one of citric acid, sodium citrate, sodium carbonate, sodium dihydrogen phosphate, disodium hydrogen phosphate, potassium dihydrogen phosphate and dipotassium hydrogen phosphate thereto, and blending same to obtain a shell layer solution; then dissolving a plant essential oil in an organic solvent for dilution, and stirring same until uniform to obtain a core layer solution; and by using the shell layer solution and the core layer solution as spinning solutions, carrying out spinning by using a coaxial electrospinning technique, setting the pushing rate of the shell layer solution to be larger than that of the core layer solution, and collecting same by means of a rotary drum by using tin foil paper as a receiving substrate, to obtain a nanofiber membrane, namely the controlled-release antibacterial packaging fiber membrane with intelligent response to pH. The prepared fiber membrane is safe and non-toxic, and can be in direct contact with food; and by means of the "on-demand" release of antibacterial components, the utilization efficiency of the antibacterial components is maximized, and the safety and quality of food are ensured without weakening the antibacterial effect.
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Inventors:
ZHANG JUNJUN (CN)
SHI JIYONG (CN)
ZOU XIAOBO (CN)
HUANG XIAOWEI (CN)
ZHANG CHANGCAI (CN)
LIU LI (CN)
ZHAGN JIANING (CN)
LI JIAHENG (CN)
SHI JIYONG (CN)
ZOU XIAOBO (CN)
HUANG XIAOWEI (CN)
ZHANG CHANGCAI (CN)
LIU LI (CN)
ZHAGN JIANING (CN)
LI JIAHENG (CN)
Application Number:
PCT/CN2021/075461
Publication Date:
July 07, 2022
Filing Date:
February 05, 2021
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
D04H1/728; D01D5/34; D01F1/10; D04H1/4382
Foreign References:
| CN111450078A | 2020-07-28 | |||
| CN101011395A | 2007-08-08 | |||
| CN110541240A | 2019-12-06 | |||
| US10876223B1 | 2020-12-29 |
Other References:
SUN WU-LIANG;LIU XIAO-JUAN;DONG XIN-CHEN;LU ZE-YU;ZHOU ZHI-MIN;WANG PENG-YANG;SUN WEN-XIU: "Preparation of pH-responsive Intelligent Antibacterial Packaging Film and Its Application in Chilled Fresh Mutton", PACKAGING ENGINEERING, vol. 41, no. 5, 10 March 2020 (2020-03-10), pages 66 - 73, XP055948822, ISSN: 1001-3563, DOI: 10.19554/j.cnki.1001-3563.2020.05.009
LIU XIAOJUAN: "Preparation of pH-responsive Core-shell Structure Antibacterial Fiber Mat and Application of Fresh-keeping Mutton in Fresh-keeping Mutton", CHINESE MASTER'S THESES FULL-TEXT DATABASE, 15 January 2020 (2020-01-15), pages 1 - 48, XP055948823, ISSN: 1674-0246, DOI: 10.27229/d.cnki.gnmnu.2019.000132
LI, HEYU: "Preparation and Application of Electrospun pH and Thermo-sensitive Nanofibers", PH.D. THESIS, no. 5, 1 October 2018 (2018-10-01), China, pages 1 - 193, XP009538046
LIU XIAOJUAN: "Preparation of pH-responsive Core-shell Structure Antibacterial Fiber Mat and Application of Fresh-keeping Mutton in Fresh-keeping Mutton", CHINESE MASTER'S THESES FULL-TEXT DATABASE, 15 January 2020 (2020-01-15), pages 1 - 48, XP055948823, ISSN: 1674-0246, DOI: 10.27229/d.cnki.gnmnu.2019.000132
LI, HEYU: "Preparation and Application of Electrospun pH and Thermo-sensitive Nanofibers", PH.D. THESIS, no. 5, 1 October 2018 (2018-10-01), China, pages 1 - 193, XP009538046
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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