Occurrence of Naphtho-Gamma-Pyrones- and Ochratoxin A-Producing Fungi in French Grapes and Characterization of New Naphtho-Gamma-Pyrone Polyketide (Aurasperone G) Isolated fromAspergillus nigerC-4331

2007 ◽  
Vol 55 (22) ◽  
pp. 8920-8927 ◽  
Author(s):  
Noureddine Bouras ◽  
Florence Mathieu ◽  
Yannick Coppel ◽  
Stephen E. Strelkov ◽  
Ahmed Lebrihi
Keyword(s):  
Ochratoxin A

Identification and characterization of the polyketide synthase involved in ochratoxin A biosynthesis in Aspergillus carbonarius

2014 ◽  
Vol 179 ◽  
pp. 10-17 ◽  
Author(s):  
Antonia Gallo ◽  
Benjamin P. Knox ◽  
Kenneth S. Bruno ◽  
Michele Solfrizzo ◽  
Scott E. Baker ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Polyketide Synthase ◽  
Aspergillus Carbonarius ◽  
Identification And Characterization

ITS-RFLP characterization of black Aspergillus isolates responsible for ochratoxin A contamination in cocoa beans

2009 ◽  
Vol 229 (5) ◽  
pp. 751-755 ◽  
Author(s):  
Fatima Bisbal ◽  
Jose Vicente Gil ◽  
Daniel Ramón ◽  
Pedro Vicente Martínez-Culebras
Keyword(s):  
Ochratoxin A ◽  
Cocoa Beans

Dietary exposure and health risk characterization of aflatoxin B1, ochratoxin A, fumonisin B1, and zearalenone in food from different provinces in Northern Vietnam

Food Control ◽  
2020 ◽  
Vol 112 ◽  
pp. 107108 ◽  
Author(s):  
Tuan Huu Do ◽  
Son Cao Tran ◽  
Chi Dinh Le ◽  
Ha-Binh Thi Nguyen ◽  
Phuong-Thao Thi Le ◽  
...  
Keyword(s):  
Health Risk ◽  
Ochratoxin A ◽  
Aflatoxin B1 ◽  
Fumonisin B1 ◽  
Dietary Exposure ◽  
Risk Characterization ◽  
Northern Vietnam

Detection and Characterization of a Glutathione Conjugate of Ochratoxin A

2002 ◽  
Vol 15 (12) ◽  
pp. 1581-1588 ◽  
Author(s):  
Jian Dai ◽  
Gyungse Park ◽  
Marcus W. Wright ◽  
Marissa Adams ◽  
Steven A. Akman ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Glutathione Conjugate

scholarly journals Selection and Characterization of a Novel DNA Aptamer for Label-Free Fluorescence Biosensing of Ochratoxin A

Toxins ◽  
2014 ◽  
Vol 6 (8) ◽  
pp. 2435-2452 ◽  
Author(s):  
Maureen McKeague ◽  
Ranganathan Velu ◽  
Kayla Hill ◽  
Viola Bardóczy ◽  
Tamás Mészáros ◽  
...  
Keyword(s):  
Ochratoxin A ◽  
Dna Aptamer ◽  
Label Free

Dietary exposure assessment and risk characterization of citrinin and ochratoxin A in Belgium

2021 ◽  
Vol 147 ◽  
pp. 111914
Author(s):  
Celine Meerpoel ◽  
Arnau Vidal ◽  
Mirjana Andjelkovic ◽  
Marthe De Boevre ◽  
Emmanuel K. Tangni ◽  
...  
Keyword(s):  
Exposure Assessment ◽  
Ochratoxin A ◽  
Dietary Exposure ◽  
Risk Characterization

scholarly journals Biochemical Characterization of Ochratoxin A-Producing Strains of the Genus Penicillium

2001 ◽  
Vol 67 (8) ◽  
pp. 3630-3635 ◽  
Author(s):  
Thomas Ostenfeld Larsen ◽  
Anne Svendsen ◽  
Jørn Smedsgaard
Keyword(s):  
Ochratoxin A ◽  
Yeast Extract ◽  
Biochemical Characterization ◽  
Agar Medium ◽  
Meat Products ◽  
Penicillium Verrucosum ◽  
Array Detection ◽  
Almost All ◽  
Yeast Extract Sucrose

ABSTRACT In order to explore the biochemical scope of ochratoxin A-producing penicillia, we screened 48 Penicillium verrucosumisolates for the production of secondary metabolites. Fungal metabolites were analyzed by high-pressure liquid or gas chromatography coupled to diode array detection or mass spectrometry. The following metabolites were identified: ochratoxins A and B, citrinin, verrucolones, verrucines, anacines, sclerotigenin, lumpidin, fumiquinazolines, alantrypinones, daldinin D, dipodazine, penigequinolines A and B, 2-pentanone, and 2-methyl-isoborneol. By use of average linking clustering based on binary (nonvolatile) metabolite data, the 48 isolates could be grouped into two large and clearly separated groups and a small outlying group of four non-ochratoxin-producing isolates. The largest group, containing 24 isolates, mainly originating from plant sources, included the type culture of P. verrucosum. These isolates produced ochratoxin A, verrucolones, citrinin, and verrucines and had a characteristic dark brown reverse color on yeast extract-sucrose agar medium. Almost all of a group of 20 isolates mainly originating from cheese and meat products had a pale cream reverse color on yeast extract-sucrose agar medium and produced ochratoxin A, verrucolones, anacines, and sclerotigenin. This group included the former type culture of P. nordicum. We also found that P. verrucosum isolates and threeP. nordicum isolates incorporated phenylalanine into verrucine and lumpidin metabolites, a finding which could explain why those isolates produced relatively lower levels of ochratoxins than did most isolates of P. nordicum.

Sign in / Sign up

Export Citation Format

Share Document