Antioxidant films based on poly(lactic acid) incorporated with crude extract from Malpighia emarginata DC pomace for use in food packaging

IF 2.8 4区工程技术 Q2 ENGINEERING, MANUFACTURING

Packaging Technology and Science Pub Date : 2023-10-03 DOI:10.1002/pts.2778

Esther Emily Silva Freitas, Êuder Reis Dias, Mara Márcia Sampaio Albuquerque, Ilka Borges Biondi, Carla Rodrigues Cardoso Branco, Renato Souza Cruz, Alexsandro Branco, Geany Peruch Camilloto

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Abstract

Abstract The interest in natural antioxidants for the development of active food packaging is increasing, since lipid oxidation has a negative impact on food quality and people's living standards are changing. The aim of this work was to obtain Malpighia emarginata DC pomace extract (MEPE), as well as to develop poly(lactic acid) (PLA)‐based films with antioxidant activity, through the incorporation of MEPE. MEPE showed antioxidant activity through the DPPH and ABTS assays, 127.16 ± 9.70 μmol TEAC g −1 extract and 322.84 ± 19.38 μmol TEAC g −1 extract, respectively. The HPLC quantification revealed that quercetin and isorhamnetin were found at concentrations of 244.77 ± 8.42 and 707.20 ± 23.17 μg g −1 , respectively. The properties of the films were influenced by the presence of MEPE, which caused a plasticizing effect on the PLA film, reducing the tensile strength and Young's modulus and increasing the elongation at break and water vapour permeability. The antioxidant property test (DPPH and ABTS) of the films was shown to be improved with the addition of MEPE. Despite changes in the film properties, they have potential for application as active food packaging. This work showed the potential utilization of agriculture pomace to produce antioxidant additive and its application as antioxidant in active food packaging, since they showed excellent antioxidant activity in radical scavenging activity tests.

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以聚乳酸为基础的抗氧化膜，加入玛氏马渣粗提取物，用于食品包装

摘要由于脂质氧化对食品质量的负面影响以及人们生活水平的不断变化，人们对开发天然抗氧化剂用于活性食品包装的兴趣越来越大。本研究的目的是获得马皮蝇DC渣提取物(MEPE)，并通过加入MEPE制备具有抗氧化活性的聚乳酸(PLA)基薄膜。通过DPPH和ABTS测定，MEPE提取物的抗氧化活性分别为127.16±9.70 μmol TEAC g - 1和322.84±19.38 μmol TEAC g - 1。HPLC测定结果显示槲皮素和异鼠李素的浓度分别为244.77±8.42和707.20±23.17 μg−1。MEPE的存在影响了薄膜的性能，对PLA薄膜产生了塑化作用，降低了拉伸强度和杨氏模量，增加了断裂伸长率和透气性。MEPE的加入提高了膜的抗氧化性能(DPPH和ABTS)。尽管薄膜性能发生了变化，但它们具有作为活性食品包装的应用潜力。研究表明，农业渣渣具有良好的抗氧化活性，可用于生产抗氧化添加剂，并可作为活性食品包装中的抗氧化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Packaging Technology and Science 工程技术-工程：制造

CiteScore

4.90

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： Packaging Technology & Science publishes original research, applications and review papers describing significant, novel developments in its field. The Journal welcomes contributions in a wide range of areas in packaging technology and science, including: -Active packaging -Aseptic and sterile packaging -Barrier packaging -Design methodology -Environmental factors and sustainability -Ergonomics -Food packaging -Machinery and engineering for packaging -Marketing aspects of packaging -Materials -Migration -New manufacturing processes and techniques -Testing, analysis and quality control -Transport packaging