Natural occurrence of tenuazonic acid and Phoma sorghina in Brazilian sorghum grains at different maturity stages.
Food Chem
; 230: 491-496, 2017 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-28407940
ABSTRACT
A survey of 100 samples of sorghum grains was carried out to determine Phoma spp. and tenuazonic acid (TA) contamination using molecular tools and LC-MS/MS. Sorghum samples were obtained at the following four grain maturity stages milk (S1), soft dough (S2), hard dough (S3), and physiological maturity (S4). The results revealed a good correlation between Phoma and TA occurrence during grain development. The samples showed Phoma contamination with frequencies ranging from 2.4% (S1) to 87.4% (S4), and the molecular identification revealed P. sorghina as the only Phoma specie isolated. Tenuazonic acid was found in sorghum grains at all maturity stages. In S2, S3 and S4, 100% of the samples showed TA contamination with levels ranging from 20 to 1234µg/kg. Low levels of TA were detected in 36% of the samples collected at S1 stage. This is the first report of tenuazonic acid in Brazilian sorghum grains.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Ácido Tenuazónico
/
Sorghum
/
Micotoxinas
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Food Chem
Año:
2017
Tipo del documento:
Article