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钠蒙脱石与有机改性蒙脱石作为精油纳米载体用于具有可控和长效抗氧化活性的熔融挤出低密度聚乙烯纳米复合活性包装薄膜

Na-Montmorillonite vs. Organically Modified Montmorillonite as Essential Oil Nanocarriers for Melt-Extruded Low-Density Poly-Ethylene Nanocomposite Active Packaging Films with a Controllable and Long-Life Antioxidant Activity.

作者信息

Giannakas Aris

机构信息

Department of Food Science and Technology, University of Patras, 30100 Agrinio, Greece.

出版信息

Nanomaterials (Basel). 2020 May 27;10(6):1027. doi: 10.3390/nano10061027.

DOI:10.3390/nano10061027
PMID:32471304
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7352687/
Abstract

Nowadays, active packaging is becoming significant for the extension of the shelf life of food products via the incorporation of raw nanomaterials such as nanoclays and bioactive compounds such as essential oils (EO). This study aims to study the performance of the sodium montmorillonite (NaMt) and organically modified montmorillonite (OrgMt) as thyme (TO), oregano (OO), and basil (BO) essential oil (EO) control release nanocarriers in low-density poly-ethylene (LDPE) active films. NaMt and OrgMt nanofillers are modified with low (20 wt.%), medium (40 wt.%), and high (80 wt.%) nominal contents of TO, OO, and BO. The novel active packaging films were tested using the X-ray diffraction method (XRD), tensile, water, and oxygen barrier properties, and antioxidant activity tests. For the two most active packaging films, the lipid oxidation of chicken breast fillets estimated by the thiobarbituric-acid-reacting substances (TBARS) method. Overall study shows that both NaMtEO-based and OrgMt-based films exhibited controllable and sustained antioxidant activity. All films retained up to 50-70% of their antioxidant activity after six months of incubation. OrgMtEO-based LDPE films showed more significance applied as active packaging films than NaMtEO-based LDPE films because of their highest tensile and barrier properties.

摘要

如今，通过加入纳米黏土等原始纳米材料和精油（EO）等生物活性化合物，活性包装对于延长食品保质期变得至关重要。本研究旨在研究钠蒙脱石（NaMt）和有机改性蒙脱石（OrgMt）作为百里香（TO）、牛至（OO）和罗勒（BO）精油（EO）控释纳米载体在低密度聚乙烯（LDPE）活性薄膜中的性能。NaMt和OrgMt纳米填料分别用低（20 wt.%）、中（40 wt.%）和高（80 wt.%）标称含量的TO、OO和BO进行改性。采用X射线衍射法（XRD）、拉伸性能、阻水和阻氧性能以及抗氧化活性测试对新型活性包装薄膜进行了检测。对于两种活性最高的包装薄膜，采用硫代巴比妥酸反应物质（TBARS）法评估鸡胸肉的脂质氧化情况。总体研究表明，基于NaMtEO和基于OrgMt的薄膜均表现出可控且持续的抗氧化活性。所有薄膜在孵育六个月后仍保留高达50 - 70%的抗氧化活性。基于OrgMtEO的LDPE薄膜由于其最高的拉伸性能和阻隔性能，作为活性包装薄膜比基于NaMtEO的LDPE薄膜更具优势。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/7a7fadbffb5f/nanomaterials-10-01027-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/6fc2b0b648dc/nanomaterials-10-01027-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/a1790ceb9d03/nanomaterials-10-01027-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/f6aeb0df6e1a/nanomaterials-10-01027-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/30cdd0b3021b/nanomaterials-10-01027-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/a7dc220b376b/nanomaterials-10-01027-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/21e7fa125c1e/nanomaterials-10-01027-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/7a7fadbffb5f/nanomaterials-10-01027-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/6fc2b0b648dc/nanomaterials-10-01027-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/a1790ceb9d03/nanomaterials-10-01027-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/f6aeb0df6e1a/nanomaterials-10-01027-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/30cdd0b3021b/nanomaterials-10-01027-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/a7dc220b376b/nanomaterials-10-01027-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/21e7fa125c1e/nanomaterials-10-01027-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4de7/7352687/7a7fadbffb5f/nanomaterials-10-01027-g007.jpg

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本文引用的文献

[1]
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