English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/150271
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Impact of bioactive packaging systems based on EVOH films and essential oils in the control of aflatoxigenic fungi and aflatoxin production in maize

AuthorsMateo, Eva M.; Gómez, José V.; Domínguez, Irene ; Gimeno Adelantado, José V.; Mateo Castro, Rufino; Gavara, Rafael ; Jiménez, Misericordia
KeywordsBioactive ethylene-vinyl alcohol copolymer (EVOH)
Aspergillus flavus
Aspergillus parasiticus
Aflatoxins
Essential oils
Maize
Issue Date11-May-2017
PublisherElsevier
CitationInternational Journal of Food Microbiology 254: 36-46 (2017)
AbstractAspergillus flavus and A. parasiticus are the most common fungal species associated with aflatoxin (AF) contamination of cereals, especially maize, and other agricultural commodities. AFB1, the most frequent and toxic metabolite, is a powerful hepatotoxic, teratogenic and mutagenic compound. Effective strategies to control these fungal species and AFs in food and feed are required. Active packaging film containing essential oils (EO) is one of the most innovative food packaging concepts. In this study, ethylene-vinyl alcohol (EVOH) copolymer films incorporating EO from Origanum vulgare (ORE), Cinnamomum zeylanicum (CIN) or their major active constituents, carvacrol (CAR) and cinnamaldehyde (CINHO), respectively, were developed and assayed to control growth of A. flavus and A. parasiticus and AF production in maize grains under different aw and temperature regimens. EO doses assayed in cultures were in the range 0.25–4.0 mg/Petri dish. The factors aw, temperature, type of EVOH-EO film and fungal species significantly influenced the ED50 values of all assayed films. Growth rate (GR) of both species was usually higher at 0.99 than at 0.96 aw and at 37 °C than at 25 °C. However, the contrary was found with regard to AF production. The order of efficacy of EVOH-EO films to control growth of both species and AF production was EVOH-CINHO > EVOH-CAR > EVOH-ORE > EVOH-CIN. The effective dose (ED50) (mg EO/plate) for EVOH-CINHO and EVOH-CIN films against A. flavus were in the ranges of 0.125 and 2.475–3.500 and against A. parasiticus in the ranges of 0.121–0.133 and 2.275–3.625, respectively. Under the assayed conditions, the ED90 for EVOH-CINHO film were 0.22–0.23 mg/plate for both species. It was the most effective bioactive film to control fungal growth (vapour phase) and AF production, regardless of aw and temperature. This is the first study about the impact that interacting environmental conditions and bioactive EVOH-CINHO, EVOH-ORE, EVOH-CIN EVOH-CAR films have on the growth of aflatoxigenic fungi and on AF production in maize grains.
Publisher version (URL)https://doi.org/10.1016/j.ijfoodmicro.2017.05.007
URIhttp://hdl.handle.net/10261/150271
DOI10.1016/j.ijfoodmicro.2017.05.007
ISSN0168-1605
Appears in Collections:(IATA) Artículos
Files in This Item:
File Description SizeFormat 
IJFM-2017-Mateo.pdfArtículo principal1,23 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.