Evaluation of gaseous allyl isothiocyanate against the growth of mycotoxigenic fungi and mycotoxin production in corn stored for 6 months

被引：29
作者：
Nazareth, Tiago M. [1 ]
Correa, Jessica A. F. [1 ]
Pinto, Anne C. S. M. [1 ]
Palma, Juliano B. [1 ]
Meca, Giuseppe [2 ]
Bordin, Keliani [1 ]
Luciano, Fernando B. [1 ]
机构：
[1] Pontificia Univ Catolica Parana, Sch Life Sci, Rua Imaculada Conceicao 1155, BR-80215901 Curitiba, Parana, Brazil
[2] Univ Valencia, Lab Food Chem & Toxicol, Fac Pharm, Burjassot, Spain
来源：
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE | 2018年 / 98卷 / 14期
关键词：
natural antimicrobial; fungal spoilage; mycotoxins reduction; toxigenic fungi; stored grains; ASPERGILLUS-PARASITICUS; PHENYL ISOTHIOCYANATE; NATURAL OCCURRENCE; FUMONISIN B-1; INHIBITION; AFLATOXINS; OCHRATOXIN; TOXICITY; FOOD; ZEARALENONE;
D O I：
10.1002/jsfa.9061
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
BACKGROUNDBrazil produces approximately 63 million tons of corn kernels annually, which is commonly contaminated with fungi and mycotoxins. The objective of this study was to evaluate the efficacy of gaseous allyl isothiocyanate (AITC) to inhibit the growth of Aspergillus parasiticus and Fusarium verticillioides, and mycotoxin production (aflatoxins B-1, B-2, G(1) and G(2), fumonisins B-1 and B-2) in corn during 180days of storage. RESULTSAITC at 50 mu LL-1 resulted in a significant reduction of the fungal population (P<0.05) after 180days, decreasing 3.17log(CFUg(-1)) and 3.9log(CFUg(-1)) of A.parasiticus and F.verticillioides respectively in comparison with the control. In addition, 10 and 50 mu LL-1 treatments prevented the production of fumonisin B-1 for the whole period. Aflatoxins were not detected in either control or treated groups. Residual levels of AITC in corn treated with 10 mu LL-1 and 50 mu LL-1 were detected up to 14days and 30days respectively. CONCLUSIONProphylactic treatment with AITC reduced the fungal population and inhibited fumonisin B-1 production in stored corn, exhibiting great potential to be applied in corn silos to prevent fungi contamination and minimize mycotoxin levels. (c) 2018 Society of Chemical Industry
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页码：5235 / 5241
页数：7
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