Preparation of an agar-silver nanoparticles (A-AgNp) film for increasing the shelf-life of fruits
- Author(s): Janhavi A. Gudadhe 1 ; Alka Yadav 1 ; Aniket Gade 1 ; Priscyla D. Marcato 2 ; Nelson Durán 3, 4 ; Mahendra Rai 1, 3
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View affiliations
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Affiliations:
1:
Department of Biotechnology, SGB Amravati University, Amravati 444602, Maharashtra, India;
2: Faculty of Pharmaceutical Sciences of Riberão Preto, Universidade de São, Butantã, São Paulo, Brazil;
3: Instituto de Química, Biological Chemistry Laboratory, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil;
4: Centre of Natural and Human Science, Universidade Federal do ABC, Santo Andre, São Paulo, Brazil
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Affiliations:
1:
Department of Biotechnology, SGB Amravati University, Amravati 444602, Maharashtra, India;
- Source:
Volume 8, Issue 4,
December 2014,
p.
190 – 195
DOI: 10.1049/iet-nbt.2013.0010 , Print ISSN 1751-8741, Online ISSN 1751-875X
Preparation of protective coating possessing antimicrobial properties is present day need as they increase the shelf life of fruits and vegetables. In the present study, preparation of agar-silver nanoparticle film for increasing the shelf life of fruits is reported. Silver nanoparticles (Ag-NPs) biosynthesised using an extract of Ocimum sanctum leaves, were mixed with agar–agar to prepare an agar-silver nanoparticles (A-AgNp) film. This film was surface-coated over the fruits, Citrus aurantifolium (Thornless lime) and Pyrus malus (Apple), and evaluated for the determination of antimicrobial activity of A-AgNp films using disc diffusion method, weight loss and shelf life of fruits. This study demonstrates that these A-AgNp films possess antimicrobial activity and also increase the shelf life of fruits.
Inspec keywords: agricultural products; protective coatings; food products; silver; antibacterial activity; nanoparticles; organic compounds; food preservation; nanobiotechnology; thin films; diffusion
Other keywords: disc diffusion method; Pyrusmalus; Thornless lime; antimicrobial activity; agar-silver nanoparticle film preparation; fruit shelf life; A-AgNp film; Ag; protective coating preparation; Citrus aurantifolium; surface-coating; Ocimum sanctum leaf; Apple; biosynthesis
Subjects: Agriculture; Biotechnology industry; Engineering materials; Products and commodities; Surface treatment and coating techniques; Industrial processes
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