Alternating temperatures and photoperiod effects on fungal growth and Ochratoxin A production by Aspergillus carbonarius isolated from Tunisian grapes

被引：18
作者：
Oueslati, Souheib
Lasram, Salma
Ramos, Antonio J. [1 ]
Marin, Sonia [1 ]
Mliki, Ahmed
Sanchis, Vicente [1 ]
Ghorbel, Abdelwahed
机构：
[1] Univ Lleida, CeRTA UTPV, Dept Food Technol, Lleida 25198, Spain
来源：
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY | 2010年 / 139卷 / 03期
关键词：
Aspergillus carbonarius; Ochratoxin A; Growth; Alternating temperature; Photoperiod; Light; Darkness; A PRODUCTION; SECTION NIGRI; WATER ACTIVITY; AFLATOXIN; STRAINS; COFFEE; LIGHT; WINE;
D O I：
10.1016/j.ijfoodmicro.2010.02.003
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The effect of three alternating temperatures cycles (20/30, 20/37 and 25/42 degrees C) and photoperiod on growth and Ochratoxin A (OTA) production of six isolates of Aspergillus carbonarius on synthetic nutrient medium were investigated. The different temperature regimes affected significantly both the mycelial growth and the OTA production. The best growth and OTA production were recorded at 20/30 degrees C. The isolates from the region of Baddar produced the highest OTA yields. A 24 h light cycle generally enhanced the growth of A. carbonarius. Growth rates cycles of 11 h/13 h light/darkness and 24 h darkness were often similar for individual isolates, such conditions enhanced OTA production in two of the six isolates tested. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：210 / 213
页数：4
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