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A Novel Niosome-Encapsulated Essential Oil Formulation to Prevent Aspergillus flavus Growth and Aflatoxin Contamination of Maize Grains During Storage

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García-Díaz, Marta and Patiño Álvarez, Belén and Vázquez, Covadonga and Gil-Serna, Jessica (2019) A Novel Niosome-Encapsulated Essential Oil Formulation to Prevent Aspergillus flavus Growth and Aflatoxin Contamination of Maize Grains During Storage. Toxins, 11 (11). p. 646. ISSN 2072-6651

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Official URL: https://www.mdpi.com/2072-6651/11/11/646



Abstract

Aflatoxin (AF) contamination of maize is a major concern for food safety. The use of chemical fungicides is controversial, and it is necessary to develop new effective methods to control Aspergillus flavus growth and, therefore, to avoid the presence of AFs in grains. In this work, we tested in vitro the effect of six essential oils (EOs) extracted from aromatic plants. We selected those from Satureja montana and Origanum virens because they show high levels of antifungal and antitoxigenic activity at low concentrations against A. flavus. EOs are highly volatile compounds and we have developed a new niosome-based encapsulation method to extend their shelf life and activity. These new formulations have been successfully applied to reduce fungal growth and AF accumulation in maize grains in a small-scale test, as well as placing the maize into polypropylene woven bags to simulate common storage conditions. In this latter case, the antifungal properties lasted up to 75 days after the first application


Item Type:Article
Uncontrolled Keywords:essential oils; Satureja montana; Origanum virens; Aspergillus flavus; aflatoxin; corn; nanoparticles
Subjects:Medical sciences > Biology > Genetics
Medical sciences > Biology > Microbiology
ID Code:61342
Deposited On:03 Jul 2020 18:24
Last Modified:03 Jul 2020 18:24

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