נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Bioconversion of Aflatoxin G 1 to Aflatoxin B 3 by selected fungi
Year:
1990
Source of publication :
Mycotoxin Research
Authors :
Lisker, Norberto
;
.
Volume :
6
Co-Authors:
Lisker, N., Department of Agronomy and Natural Resources Agricultural Research Organization, The Volcani Center, Bet Dagan, 50250, Israel
Zhang, G.S., Food Research Institute and Department of Food Microbiology and Toxicology, University of Wisconsin, Madison, 53706, WI, United States
Chu, F.S., Food Research Institute and Department of Food Microbiology and Toxicology, University of Wisconsin, Madison, 53706, WI, United States
Facilitators :
From page:
67
To page:
72
(
Total pages:
6
)
Abstract:
Aflatoxin G 1 (AFG 1) was transformed into aflatoxin B 3 (AFB 3) by the fungi Rhodotorula sp, Sporobolomyces sp, Rhizopus oryzae NRRL395, Pythium ultimum, Aspergillus terreus, A clavatus and Penicillium frequentans grown in a medium containing AFG 1, Difco potato dextrose broth, yeast extract, and peptone both in liquid shaken cultures and in solid static cultures at 25°C in the dark. A maximum rate of transformation of 10 % was obtained after 2 to 3 weeks of incubation. The transformation was correlated with an increase in the pH of the media from 5.7 -5.9 to 8.3 - 8.8. Saccharomyces cerevisiae also transformed AFG 1 into AFB 3, but at a slower rate; the pH of the media did not reach above 8.0 until 5 weeks after incubation. No transformation was observed when A niger and P chrysogenum were tested; in both cases, no increase in pH was noticed. However, some transformation of AFG 1 to AFB 3 by both fungi was observed when the initial pH of the media was adjusted to 9.0. The rate of transformation increased to 15 - 20% in the static culture where the same medium was adsorbed onto vermiculite and Rhizopus and Aspergilli gave the highest increase in AFB 3 yield. © 1990 Society of Mycotoxin Research and Springer.
Note:
Related Files :
Show More
Related Content
More details
DOI :
10.1007/BF03192145
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19619
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:30
Scientific Publication
Bioconversion of Aflatoxin G 1 to Aflatoxin B 3 by selected fungi
6
Lisker, N., Department of Agronomy and Natural Resources Agricultural Research Organization, The Volcani Center, Bet Dagan, 50250, Israel
Zhang, G.S., Food Research Institute and Department of Food Microbiology and Toxicology, University of Wisconsin, Madison, 53706, WI, United States
Chu, F.S., Food Research Institute and Department of Food Microbiology and Toxicology, University of Wisconsin, Madison, 53706, WI, United States
Bioconversion of Aflatoxin G 1 to Aflatoxin B 3 by selected fungi
Aflatoxin G 1 (AFG 1) was transformed into aflatoxin B 3 (AFB 3) by the fungi Rhodotorula sp, Sporobolomyces sp, Rhizopus oryzae NRRL395, Pythium ultimum, Aspergillus terreus, A clavatus and Penicillium frequentans grown in a medium containing AFG 1, Difco potato dextrose broth, yeast extract, and peptone both in liquid shaken cultures and in solid static cultures at 25°C in the dark. A maximum rate of transformation of 10 % was obtained after 2 to 3 weeks of incubation. The transformation was correlated with an increase in the pH of the media from 5.7 -5.9 to 8.3 - 8.8. Saccharomyces cerevisiae also transformed AFG 1 into AFB 3, but at a slower rate; the pH of the media did not reach above 8.0 until 5 weeks after incubation. No transformation was observed when A niger and P chrysogenum were tested; in both cases, no increase in pH was noticed. However, some transformation of AFG 1 to AFB 3 by both fungi was observed when the initial pH of the media was adjusted to 9.0. The rate of transformation increased to 15 - 20% in the static culture where the same medium was adsorbed onto vermiculite and Rhizopus and Aspergilli gave the highest increase in AFB 3 yield. © 1990 Society of Mycotoxin Research and Springer.
Scientific Publication
You may also be interested in