scholarly journals Antimicrobial Packaging

Author(s):  
Diana Merchan ◽  
Mercy Agila ◽  
Marina Arteaga ◽  
Monica Criollo

Food Codex requires safe products and packaging is an important factor to comply with this consumer right, so developing packaging with antimicrobial properties that protect the product by eliminating or inhibiting bacteria or pathogens that cause damage to health is important in the food industry. The objective of this work was to perform a bibliographic analysis of some additives that generate antimicrobial properties in packaging by reviewing some studies that have developed antimicrobial films or also called smart films. Microbial agents have become an important factor in maintaining food quality over time. Biopolymers are an excellent alternative due to their availability, low cost, biodegradability and their origin are from renewable sources.

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Shipra Tripathi ◽  
G. K. Mehrotra ◽  
P. K. Dutta

AbstractAntimicrobial packaging is one of the most promising active packaging systems. Antimicrobial packaging is the packaging system that is able to kill or inhibit spoilage and pathogenic microorganisms that are contaminating foods. A tremendous effort has been made over the last decade to develop and test films with antimicrobial properties to improve food safety and shelf life. For food preservation, chitosan films are very effective. Chitosan has widely been used in antimicrobial films, to provide edible protective coating, dipping and spraying for the food products due to its antimicrobial properties. Chitosan can be formed into fibers, films, gels, sponges, beads or nanoparticles. Chitosan films have been used as a packaging material for the quality preservation of a variety of food. Chitosan has great potential for a wide range of applications due to its biodegradability, biocompatibility, antimicrobial activity, non-toxicity and versatile chemical and physical properties. The present review outlines the preparation and antimicrobial activity of chitosan based films.


2021 ◽  
pp. 1-10
Author(s):  
Sze Lin Yoong ◽  
Jacklyn Jackson ◽  
Courtney Barnes ◽  
Nicole Pearson ◽  
Taren Swindle ◽  
...  

Abstract Objective: The current study sought to describe and compare study type, research design and translation phase of published research in nutrition and dietetic journals in 1998 and 2018. Design: This was a repeat cross-sectional bibliographic analysis of Nutrition and Dietetics research. All eligible studies in the top eight Nutrition and Dietetics indexed journals in 1998 and 2018 were included. Two independent reviewers coded each study for research design (study type and study design) and translation phase (T0-T4) of the research using seminal texts in the field. Setting: Not relevant. Participants: Not relevant. Results: The number of publications (1998, n 1030; 2018, n 1016) has not changed over time, but the research type, design and translation phases have. The proportion of intervention studies in 1998 (43·8 %) was significantly higher than 2018 (19·4 %). In 2018, more reviews (46·9 % v. 15·6 % in 1998) and less randomised trials (14·3 % v. 37·8 % in 1998) were published. In regard to translation phase, there was a higher proportion of T2–T4 research in 2018 (18·3 % v. 3·8 % in 1998); however, the proportion of T3/T4 (dissemination, implementation and population-level research) research was still low (<3 %). Our sensitivity analysis with the four journals that remained in the top eight journal across the two time periods found no differences in the research type, design and translation phases across time. Conclusions: There was a reduction in intervention and T0 publications, alongside higher publication of clinical study designs over time; however, published T3/T4 research in Nutrition and Dietetics is low. A greater focus on publishing interventions and dissemination and implementation may be needed.


2021 ◽  
Vol 13 (12) ◽  
pp. 6921
Author(s):  
Laura Sisti ◽  
Annamaria Celli ◽  
Grazia Totaro ◽  
Patrizia Cinelli ◽  
Francesca Signori ◽  
...  

In recent years, the circular economy and sustainability have gained attention in the food industry aimed at recycling food industrial waste and residues. For example, several plant-based materials are nowadays used in packaging and biofuel production. Among them, by-products and waste from coffee processing constitute a largely available, low cost, good quality resource. Coffee production includes many steps, in which by-products are generated including coffee pulp, coffee husks, silver skin and spent coffee. This review aims to analyze the reasons why coffee waste can be considered as a valuable source in recycling strategies for the sustainable production of bio-based chemicals, materials and fuels. It addresses the most recent advances in monomer, polymer and plastic filler productions and applications based on the development of viable biorefinery technologies. The exploration of strategies to unlock the potential of this biomass for fuel productions is also revised. Coffee by-products valorization is a clear example of waste biorefinery. Future applications in areas such as biomedicine, food packaging and material technology should be taken into consideration. However, further efforts in techno-economic analysis and the assessment of the feasibility of valorization processes on an industrial scale are needed.


e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 154-161 ◽  
Author(s):  
Gao Yurong ◽  
Li Dapeng

AbstractCorn starch/polyvinyl alcohol (PVA)/glycerol composite films incorporated with ε-polylysine were prepared, and their properties were investigated. The Fourier-transform infrared (FTIR) spectroscopy indicated that the interactions happened between the amino group of ε-polylysine and hydroxyl group starch/PVA composite films. X-ray diffraction (XRD) analysis showed that the addition of ε-polylysine decreased the intensity of all crystal peaks. Thermogravimetric (TGA) analysis suggested that ε-polylysine improved the thermal stability of composite films. Scanning electron microscopic (SEM) analysis showed that the upper surface of composite films incorporated with ε-polylysine presented more compact and flat surface. The antimicrobial activity of the composite film progressively increased with the increasing of ε-polylysine concentration (P < 0.05). The tensile strength, elongation at break and water absorption significantly increased, whereas water solubility decreased with the increasing of ε-polylysine concentration (P < 0.05). Therefore, the corn starch/PVA/glycerol composite films incorporated with ε-polylysine had good mechanical, physical and antimicrobial properties and could have potential application as a novel antimicrobial packaging material.


Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 646
Author(s):  
Victor Gomes Lauriano Souza ◽  
Marta M. Alves ◽  
Catarina F. Santos ◽  
Isabel A. C. Ribeiro ◽  
Carolina Rodrigues ◽  
...  

This work aimed to produce bionanocomposites of chitosan incorporated with zinc oxide nanoparticles (ZnO NPs) synthesized using food industry by-products and to characterize them. Such nanoparticles are highlighted due to their low cost, antimicrobial activity, accessibility, and sustainability synthesis. Four different levels of ZnO NPs (0, 0.5, 1.0, and 2.0% w/w of chitosan) were tested, and the bionanocomposites were characterized in terms of their hydrophobicity, mechanical, optical, and barrier properties. Overall, the incorporation of ZnO NPs changed the composites from brittle to ductile, with enhanced elongation at break and reduced Young Modulus and tensile strength. Thus, ZnO NPs acted as plasticizer, turning the films more flexible, due to the presence of organic compounds on the NPs. This also favored permeability of oxygen and of water vapor, but the good barrier properties were maintained. Optical properties did not change statistically with the ZnO NPs incorporation. Thus, the characterization presented in this paper may contribute to support a decision on the choice of the material’s final application.


2015 ◽  
Vol 69 (1) ◽  
Author(s):  
Jana Šefčovičová ◽  
Jan Tkac

AbstractMicrobial cell biosensors, where cells are in direct connection with a transducer enabling quantitative and qualitative detection of an analyte, are very promising analytical tools applied mainly for assays in the environmental field, food industry or biomedicine. Microbial cell biosensors are an excellent alternative to conventional analytical methods due to their specificity, rapid detection and low cost of analysis. Nowadays, nanomaterials are often used in the construction of biosensors to improve their sensitivity and stability. In this review, the combination of microbial and other individual cells with different nanomaterials (carbon nanotubes, graphene, gold nanoparticles, etc.) for the construction of biosensors is described and their applications are provided as well.


2009 ◽  
Author(s):  
Marie-Luise Bauersfeld ◽  
Carolin Peter ◽  
Juergen Woellenstein ◽  
Mark Buecking ◽  
Joerg Bruckert ◽  
...  

2020 ◽  
Vol 14 (2) ◽  
pp. 287
Author(s):  
Hilda Rahmah ◽  
Hanry Harlen Tapotubun

This paper aims to find out how non-Muslim countries such as Japan and Germany develop the halal tourism industry and highlight the narratives of halal tourism in both non-Muslim countries. This study has been done qualitatively in focus on the literature review and discourse analysis method as the main approach. Over time, the halal label has been led to be an inseparable aspect of lifestyle segment in certain society. It did not occur only in the food industry, but also been penetrated into various other industries, one of those is known as halal tourism. According to Global Muslim Tourist Index (GMTI), this phenomenon is not only the Muslim countries Phenomenon, but also increase in the non-Muslim countries. The halal tourism business is expanding and start to be the main economical income by Muslim minority countries, including Japan and Germany. The presence of these two countries in developing halal tourism is unique, because it is not a country with a Muslim majority, but it is precisely the target of foreign Muslim tourists, including Indonesians. Although Indonesia has been named the best halal destination according to GMTI, in fact the interest in halal tourism developed by Japan and Germany is far more promising. No doubt this has become a challenge for Indonesia to enter the this global market competition. Therefore, compared to following the market trend with profit oriented, Indonesia as a Muslim-majority country should deliver halal tourism towards the target of justice and welfare of the people.Tulisan ini bertujuan untuk memahami wacana dan kepentingan yang mengiringi perkembangan wisata halal di Jepang dan Jerman, sebagai negara non-muslim. Hal ini dikarenakan, meskipun berstatus negara non-muslim, keduanya mengalami peningkatan yang cukup signifikan dalam hal pengembangan dan tingkat kedatangan turis muslim. Dengan menggunakan pendekatan teori hegemoni oleh Laclau dan Mouffe yang menekankan pada aspek logic of difference dan chain of equivalent sebagai kunci utama internalisasi wacana hegemonik, tulisan ini dimaksudkan untuk melihat beragam wacana dan kepentingan mengiringi perkembangan wisata halal, baik yang tersirat maupun tersurat. Untuk mancapai tujuan tersebut, metode pengumpulan data akan dilakukan dengan studi kepustakaan yang fokus pada beragam artikel, berita, serta laporan-laporan terkait perkembangan industri pariwisata halal di Jepang dan Jerman. Dari berbagai data dan analisa, tampak jelas bahwa meskipun ada beragam wacana dan kepentingan, perbedaan tersebut berada dalam wacana besar neoliberalisme. Sehingga, wisata halal di negara non-muslim dapat dipahami sebagai sebuah wacana hegemonik yang hanya menguntungkan negara dan pasar tetapi mengesampingkan masyarakat. Dengan belajar dari temuan tersebut, Indonesia sebagai negara dengan populasi muslim terbesar diharapkan mampu mengembangkan industri wisata halal yang ramah, bukan hanya kepada turis dan pemodal, melainkan juga pada masyarakat sebagai garda terdepan industri wisata halal. 


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