{"title":"基于聚乙烯醇/疏水改性魔芋葡甘露聚糖基质的复合薄膜肉桂醛乳液：降解性和抑菌特性","authors":"Shuangfeng Guo, Danyang Liang, Qing Liu, Haiyu Luo, Wei Liang, Wenhao Li","doi":"10.1016/j.fpsl.2024.101318","DOIUrl":null,"url":null,"abstract":"<div><p>Biodegradable polyvinyl alcohol (PVA) and hydrophobically modified deacetyl konjac glucomannan (DK) films loaded with cinnamaldehyde (CA) emulsion were developed and characterized. The particle size of 957.4 nm and encapsulation rate of 91.23 % confirmed that CA had been embedded in the O/W emulsion system. SEM and AFM analysis showed that the PVA/DK film was more compatible, while the CA emulsion provoked bubbles and bumps on the surface, significantly gaining roughness (Ra). Besides, the water absorbency and water vapors permeability of DK after acetylation modification was lower. Meanwhile, PVA and DK had complementary roles, blending the two to enhance the water resistance of PVA and ameliorate the fragile defects of DK while accelerating the degradation of the film. Above all, the CA emulsion film possesses a vigorous antibacterial effect on <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>, and the PVA/DK/CA film has a potential application in food packaging.</p></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":null,"pages":null},"PeriodicalIF":8.5000,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cinnamaldehyde emulsions for a composite film based on polyvinyl alcohol/hydrophobically modified konjac glucomannan matrix: Degradability and bacteriostatic properties\",\"authors\":\"Shuangfeng Guo, Danyang Liang, Qing Liu, Haiyu Luo, Wei Liang, Wenhao Li\",\"doi\":\"10.1016/j.fpsl.2024.101318\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Biodegradable polyvinyl alcohol (PVA) and hydrophobically modified deacetyl konjac glucomannan (DK) films loaded with cinnamaldehyde (CA) emulsion were developed and characterized. The particle size of 957.4 nm and encapsulation rate of 91.23 % confirmed that CA had been embedded in the O/W emulsion system. SEM and AFM analysis showed that the PVA/DK film was more compatible, while the CA emulsion provoked bubbles and bumps on the surface, significantly gaining roughness (Ra). Besides, the water absorbency and water vapors permeability of DK after acetylation modification was lower. Meanwhile, PVA and DK had complementary roles, blending the two to enhance the water resistance of PVA and ameliorate the fragile defects of DK while accelerating the degradation of the film. Above all, the CA emulsion film possesses a vigorous antibacterial effect on <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>, and the PVA/DK/CA film has a potential application in food packaging.</p></div>\",\"PeriodicalId\":12377,\"journal\":{\"name\":\"Food Packaging and Shelf Life\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.5000,\"publicationDate\":\"2024-06-20\",\"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/S2214289424000838\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Packaging and Shelf Life","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214289424000838","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}
Cinnamaldehyde emulsions for a composite film based on polyvinyl alcohol/hydrophobically modified konjac glucomannan matrix: Degradability and bacteriostatic properties
Biodegradable polyvinyl alcohol (PVA) and hydrophobically modified deacetyl konjac glucomannan (DK) films loaded with cinnamaldehyde (CA) emulsion were developed and characterized. The particle size of 957.4 nm and encapsulation rate of 91.23 % confirmed that CA had been embedded in the O/W emulsion system. SEM and AFM analysis showed that the PVA/DK film was more compatible, while the CA emulsion provoked bubbles and bumps on the surface, significantly gaining roughness (Ra). Besides, the water absorbency and water vapors permeability of DK after acetylation modification was lower. Meanwhile, PVA and DK had complementary roles, blending the two to enhance the water resistance of PVA and ameliorate the fragile defects of DK while accelerating the degradation of the film. Above all, the CA emulsion film possesses a vigorous antibacterial effect on Escherichia coli and Staphylococcus aureus, and the PVA/DK/CA film has a potential application in food packaging.
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.
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