| Title: | Biocontrol potential of native yeast strains against Aspergillus flavus and aflatoxin production in pistachio |
| Author(s): | Moradi M; Rohani M; Fani SR; Mosavian MTH; Probst C; Khodaygan P; |
| Address: | "Department of Production Technology and Management, Pistachio Research Center, Horticultural Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO) , Rafsanjan, Iran. Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad , Mashhad, Iran. Plant Protection Research Department, Yazd Agricultural and Natural Resources Research and Education Center, AREEO , Yazd, Iran. Department of Agricultural Technology and Management, University of Applied Sciences, School of Engineering , Wels, Austria. Department of Plant Protection, Faculty of Agriculture, Vali-E-Asr University of Rafsanjan , Iran" |
| Journal Title: | Food Addit Contam Part A Chem Anal Control Expo Risk Assess |
| DOI: | 10.1080/19440049.2020.1811901 |
| ISSN/ISBN: | 1944-0057 (Electronic) 1944-0057 (Linking) |
| Abstract: | "is the main aflatoxin producer in food and feed and has wide ecological niches. Contamination of food products such as pistachio nuts and aflatoxin secretion directly affects food safety and international food product trades. Abilities of 13 yeast strains isolated from 200 soil and pistachio nut samples collected in Iranian orchards to reduce the growth of A. flavus as well as aflatoxin production were assessed in dual culture, volatile and non-volatile compounds tests. The growth of A. flavus was reduced by 32-60%, 13-31% and 40-61% in dual culture, volatile and non-volatile compounds, respectively, while aflatoxin B1 production was diminished by 90.6-98.3%. Based on these assays, five yeast strains were selected for co-inoculation experiments using soil, pistachio hulls and leaf. A significant reduction in colony-forming units (CFU) ranging from 23% to 110% (p < .05) was observed. Molecular, physiological and morphological identification revealed these were strains of Pichia kudriavzevii and Lachansea thermotolerans. Aflatoxin biocontrol with yeast strains possesses many advantages including the ease of commercial production and organic application which is an environmental approach. More investigation is required to understand the efficiency of selective strains to inhibit A. flavus and aflatoxin production as well as withstand predominant abiotic stress in pistachio orchards and mass production in field application" |
| Keywords: | Aflatoxins/*chemistry Antifungal Agents/*metabolism Aspergillus flavus/*metabolism Biological Control Agents/*metabolism Food Contamination/prevention & control Iran Nuts/microbiology Pichia/metabolism Pistacia/*metabolism Plant Pathology Saccharomyces ce; |
| Notes: | "MedlineMoradi, Mohammad Rohani, Maryam Fani, Seyed Reza Mosavian, Mohammad Taghi Hamed Probst, Claudia Khodaygan, Pejman eng England 2020/09/09 Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2020 Nov; 37(11):1963-1973. doi: 10.1080/19440049.2020.1811901. Epub 2020 Sep 8" |
