An Evaluation on Physical Characteristics of Konjac Polysaccharides-Based Film Coating and Its Application for Strawberries Preservation

作     者：Desy Nurliasari Awaly Ilham Dewantoro Muhammad Adly Rahandi Lubis Roni Kastaman Mohamad Djali Efri Mardawati Devi Maulida Rahmah Siti Nurhasanah Akbar Hanif Dawam Abdullah Lukmanul Hakim Zaini 

作者机构：Department of Agricultural Industrial TechnologyFaculty of Agro-Industrial TechnologyUniversitas PadjadjaranJatinangor45363Indonesia Research Center for Biomass and BioproductsNational and Innovation AgencyCibinong1691Indonesia Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas PadjadjaranJatinangor45363Indonesia Research Center for Appropriate TechnologyUniversitas PadjadjaranJatinangor45363Indonesia Department of Food Industrial TechnologyFaculty of Agro-Industrial TechnologyUniversitas PadjadjaranJatinangor45363Indonesia Department of Forest ProductsFaculty of Forestry and EnvironmentIPB UniversityBogor16680Indonesia Institute of Wood Technology and Renewable MaterialsDepartment of Material Sciences and Process EngineeringUniversity of Natural Resources and Life SciencesVienna(BOKU)Vienna1180Austria 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志(英文))

年 卷 期：2025年第13卷第1期

页      面：181-197页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：funded by the Academic Leadership Grant of Universitas Padjadjaran,Bandung,Indonesia,with grant number 1540/UN6.3.1/PT.00/2024 the Research Collaboration Center for Biomass and Biorefinery,Bandung,Indonesia,with grant number B-1723/II.7/HK.01.00/4/2024 

主　　题：Amorphophalus oncophyllus coating performances ediblefilm strawberry preservation 

摘      要：Konjac is an ideal candidate for edible coatings on fruits due to its hydrophilic properties,film-forming ability,barrier properties,safety,and ***,the high market demand for strawberries necessitates post-harvest treatment to extend their shelf life and preserve their quality,as strawberries are known for their fragile skin and soft *** fully utilize konjac and develop high-quality coatingfilms,native konjacflour(NKF)and konjac glucomannan(KGM)were extracted from its corm and used as a coatingfilm for strawberries in the present ***,this study aimed to compare the physical properties of thefilm coatings between NKF and KGM,and evaluate their effects on strawberries preservation over 7 days of storage.A multistage extrac-tion process was employed to isolate NKF and KGM,after which the glucomannan content was *** yield was 31.81%,exceeding KGM yield of 26.42%,and the glucomannan content obtained of NKF(25.93%)was higher than KGM(21.41%).Nuclear magnetic resonance spectroscopy confirmed that both NKF and KGM con-tain glucomannan in their ***,both NKF and KGM were combined with carboxymethyl cel-lulose(CMC)and glycerol to produce eight thin-layerfilms to assess their physical and mechanical *** to the KGM variant,the NKF variant generally exhibited higher moisture content,water vapor trans-mission rate,and tensile ***,NKF was less effective than KGM in extending strawberry storage life,leading to faster color changes and greater weight loss,despite maintaining similar hardness ***,konjac-based coatings were generally effective at maintaining the freshness and quality of strawberries compared to uncoated *** shows promise as an edible coating,improving fresh produce shelf life and appeal,aligning with consumer preferences for natural and sustainable products.