{"title":"Citric acid crosslinked ternary blended (polyvinyl alcohol, lignin, lemongrass essential oil/nanoemulsions) biopolymeric hydrogel films: structural, functional, antioxidant, antifungal and biodegradable properties","authors":"Isha Dudeja, Ramandeep Kaur Mankoo, Arashdeep Singh","doi":"10.1007/s11694-023-01905-9","DOIUrl":null,"url":null,"abstract":"<div><p>Rice straw is chemically constituted of three major biopolymers i.e. cellulose, hemicellulose and lignin which hold immense potential for conversion into various high-value materials. In the present study, attempts were made to valorize lignin, an aromatic phenolic polymer, via fabricaton of biopolymeric films. For this, alkali lignin was extracted from rice straw and lemongrass essential oil nanoemulsions were prepared with mean droplet diameter (spherical shape as revealed by transmission electron micrograph) and polydispersity index, 123.4?nm and 0.125, respectively. Citric acid crosslinked ternary blended i.e. polyvinyl alcohol, lignin, lemongrass essential oil/nanoemulsions biopolymeric hydrogel films were fabricated and their physical, structural and functional properties were assessed. The highest tensile strength and elongation at break were 24.31?MPa and 33.08% for OL<sub>3</sub> (oil with 3000?ppm lignin) and NL<sub>2</sub> (nanoemulsion with 2000?ppm lignin), respectively. NL<sub>2</sub> films exhibited highest %DPPH radical scavenging activity (78.05%), highest % inhibition in size (74%) and number (95.94%) of colony forming units of <i>Aspergillus niger</i>. All the synthesized films showed appreciable biodegradability in soil with maximum % weight loss experienced in NL<sub>2</sub> films (91.11%). These biopolymeric hydrogel films can be explored for use as sustainable alternatives to synthetic plastic wraps used extensively in food packaging industries to minimize plastic consumption.</p><h3>Graphical abstract</h3>\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\n </div>","PeriodicalId":48735,"journal":{"name":"Journal of Food Measurement and Characterization","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Food Measurement and Characterization","FirstCategoryId":"97","ListUrlMain":"https://link.springer.com/article/10.1007/s11694-023-01905-9","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 4
Abstract
Rice straw is chemically constituted of three major biopolymers i.e. cellulose, hemicellulose and lignin which hold immense potential for conversion into various high-value materials. In the present study, attempts were made to valorize lignin, an aromatic phenolic polymer, via fabricaton of biopolymeric films. For this, alkali lignin was extracted from rice straw and lemongrass essential oil nanoemulsions were prepared with mean droplet diameter (spherical shape as revealed by transmission electron micrograph) and polydispersity index, 123.4?nm and 0.125, respectively. Citric acid crosslinked ternary blended i.e. polyvinyl alcohol, lignin, lemongrass essential oil/nanoemulsions biopolymeric hydrogel films were fabricated and their physical, structural and functional properties were assessed. The highest tensile strength and elongation at break were 24.31?MPa and 33.08% for OL3 (oil with 3000?ppm lignin) and NL2 (nanoemulsion with 2000?ppm lignin), respectively. NL2 films exhibited highest %DPPH radical scavenging activity (78.05%), highest % inhibition in size (74%) and number (95.94%) of colony forming units of Aspergillus niger. All the synthesized films showed appreciable biodegradability in soil with maximum % weight loss experienced in NL2 films (91.11%). These biopolymeric hydrogel films can be explored for use as sustainable alternatives to synthetic plastic wraps used extensively in food packaging industries to minimize plastic consumption.
期刊介绍：
This interdisciplinary journal publishes new measurement results, characteristic properties, differentiating patterns, measurement methods and procedures for such purposes as food process innovation, product development, quality control, and safety assurance.
The journal encompasses all topics related to food property measurement and characterization, including all types of measured properties of food and food materials, features and patterns, measurement principles and techniques, development and evaluation of technologies, novel uses and applications, and industrial implementation of systems and procedures.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
