文献类型：期刊文献

英文题名：Development and evaluation of a sustainable film based on Polygonatum sibiricum polysaccharide and polylactic acid for enhancing fruit preservation

作者：Yang, Le Wang, Ziyi Ma, Jiahao Li, Yang Liu, Wei Qin, Yin

第一作者：杨亮

通信作者：Qin, Y[1];Qin, Y[2]

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550025, Peoples R China;[2]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550025, Peoples R China;[3]Guizhou Med Univ, Nat Prod Res Ctr Guizhou Prov, Sch Pharmaceut Sci, State Key Lab Discovery & Utilizat Funct Component, Guiyang 550014, Guizhou, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550025, Peoples R China;corresponding author), Guizhou Med Univ, Nat Prod Res Ctr Guizhou Prov, Sch Pharmaceut Sci, State Key Lab Discovery & Utilizat Funct Component, Guiyang 550014, Guizhou, Peoples R China.|贵州理工学院食品药品制造工程学院;贵州理工学院;

年份：2026

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20262721038553);Scopus(收录号：2-s2.0-105043532923);WOS:【SCI-EXPANDED(收录号:WOS:001816633800001)】；

基金：This work was financially supported by the Major Science and Technology Special Project of Guizhou Province (Qiankehe Rencai XKBF [2025]007), the Science and Technology Plan Project of Guiyang City (Zhu Ke Contract No. [2024] 2-1), the National Natural Science Foundation of China (52463003) and the Science and Technology Plan Project of Guizhou Province (Qiankehe JiChu ZK [2023]136). The materials and characterization of this work were also supported by the High-level talents start-up funding project of Guizhou Institute of Technology (2023GCC006 and 2025GCC037).

语种：英文

外文关键词：Decomposition - Electrospinning - Extraction - Food preservation - Hydrogen bonds - Packaging - Packaging materials - Plastic films - Wood preservation

摘要：Fully degradable polylactic acid (PLA), characterized by its green, non-toxic, and ecological attributes, has emerged as a prominent material for food packaging applications. Polysaccharides, naturally derived compounds, exhibit antibacterial and preservative characteristics, rendering them highly suitable for the manufacturing of food packaging films and preservation bags. In this work, three distinct extraction methodologies were utilized to obtain Polygonatum sibiricum polysaccharides (PSPs) from the rhizomes of Polygonatum. Subsequently, these PSPs were incorporated into PLA to fabricate PLA/PSP fiber films by utilizing an electrospinning apparatus. The resultant films were rigorously evaluated for their bacterial resistance properties and potential utility in food packaging and preservation. The findings revealed that the incorporation of PSPs, particularly those obtained through water extraction, significantly enhanced the visible light barrier properties of the PLA film (p < 0.05), thereby providing beneficial protection to food from light radiation. The addition of PSP had minimal impact on the thermal decomposition behavior of the PLA film. Furthermore, the films exhibited a low degree of crystallinity, exhibiting flexibility and adaptability to various food shapes. PSP-WE/PLA demonstrated the highest surface density of 10.44 & times; 10(-6) g cm(-2), attributed to the abundant polysaccharide molecular chains with diverse compositions and lengths, which augmented the scope and spatial extent of interactions between PSP-WE and PLA molecules, including the formation of long-range hydrogen bonds. Additionally, the antibacterial properties of the films were investigated, showcasing potential inhibitory effects on the growth of microorganisms.