Towards sustainable food packaging: Optimization of suitable sorbitan surfactant for the development of PLA-based antifog film

IF 8.5 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2024-10-13 DOI:10.1016/j.fpsl.2024.101368

Pallivathukkal Raju Aksalamol , Johnsy George , Mahammad Riyaz Guthige , Muhammed Navaf , Kappat Valiyapeediyekkal Sunooj , Ranganathan Kumar , Anil Dutt Semwal

{"title":"Towards sustainable food packaging: Optimization of suitable sorbitan surfactant for the development of PLA-based antifog film","authors":"Pallivathukkal Raju Aksalamol , Johnsy George , Mahammad Riyaz Guthige , Muhammed Navaf , Kappat Valiyapeediyekkal Sunooj , Ranganathan Kumar , Anil Dutt Semwal","doi":"10.1016/j.fpsl.2024.101368","DOIUrl":null,"url":null,"abstract":"<div><div>The demand for sustainable and biodegradable materials for food packaging applications is on the rise due to the environmental issues caused by plastic pollution. Sustainability and compostability, coupled with transparency and film-forming ability, make polylactic acid (PLA) a suitable material for antifog film applications. However, large-scale use of PLA as antifog film remains a challenge due to its inability to prevent the formation of water droplets on its surface. Here, we attempt to overcome this issue by blending PLA with a suitable sorbitan-based non-ionic surfactant, which increases its surface-free energy and wettability. Among various sorbitan-based surfactants, sorbitan monopalmitate (Span 40) was found to be more efficient in promoting good wetting and, thereby, preventing the formation of foggy droplets. The additive concentration and extrusion film-blowing parameters for PLA were optimized. The increase in surface free energy of these films was confirmed by measuring contact angle and fog testing. The results revealed that the incorporation of Span 40 significantly improved the antifogging performance of PLA films without affecting transparency, making them suitable for environmentally friendly antifog film applications. The findings presented here could pave the way for developing and commercializing PLA-based antifog films without any additional coating or surface modification requirements.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"46 ","pages":"Article 101368"},"PeriodicalIF":8.5000,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Packaging and Shelf Life","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214289424001339","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The demand for sustainable and biodegradable materials for food packaging applications is on the rise due to the environmental issues caused by plastic pollution. Sustainability and compostability, coupled with transparency and film-forming ability, make polylactic acid (PLA) a suitable material for antifog film applications. However, large-scale use of PLA as antifog film remains a challenge due to its inability to prevent the formation of water droplets on its surface. Here, we attempt to overcome this issue by blending PLA with a suitable sorbitan-based non-ionic surfactant, which increases its surface-free energy and wettability. Among various sorbitan-based surfactants, sorbitan monopalmitate (Span 40) was found to be more efficient in promoting good wetting and, thereby, preventing the formation of foggy droplets. The additive concentration and extrusion film-blowing parameters for PLA were optimized. The increase in surface free energy of these films was confirmed by measuring contact angle and fog testing. The results revealed that the incorporation of Span 40 significantly improved the antifogging performance of PLA films without affecting transparency, making them suitable for environmentally friendly antifog film applications. The findings presented here could pave the way for developing and commercializing PLA-based antifog films without any additional coating or surface modification requirements.

查看原文本刊更多论文

实现可持续食品包装：优化合适的山梨醇酐表面活性剂以开发聚乳酸基防雾膜

由于塑料污染造成的环境问题，食品包装应用对可持续和可生物降解材料的需求不断增加。可持续性和可堆肥性，加上透明度和成膜能力，使聚乳酸（PLA）成为防雾膜应用的合适材料。然而，由于聚乳酸无法阻止水滴在其表面形成，因此大规模使用聚乳酸作为防雾膜仍是一项挑战。在此，我们尝试将聚乳酸与合适的山梨糖醇类非离子表面活性剂混合，以提高其表面自由能和润湿性，从而克服这一问题。在各种山梨糖醇基表面活性剂中，我们发现山梨糖醇单棕榈酸酯（Span 40）能更有效地促进良好的润湿，从而防止雾状液滴的形成。对聚乳酸的添加剂浓度和挤出吹膜参数进行了优化。通过测量接触角和雾测试，证实了这些薄膜表面自由能的增加。结果表明，Span 40 的加入显著提高了聚乳酸薄膜的防雾性能，且不影响透明度，使其适用于环保型防雾薄膜的应用。本文介绍的研究结果可为开发基于聚乳酸的防雾薄膜并将其商业化铺平道路，而无需额外的涂层或表面改性要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science

CiteScore

14.00

自引率

8.80%

发文量

214

审稿时长

70 days

期刊介绍： Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.