Survey on ochratoxin A in Indian green coffee destined for export.
Ochratoxin A (OTA) is a toxic metabolite, produced by Aspergillus spp. and Penicillium verrucosum, that is nephrotoxic and possibly carcinogenic to humans. The aim of this study was to evaluate OTA contamination in batches of green coffee destined for export. Analysis of 80 green coffee samples indicated that, although a high incidence (74%) of OTA contamination (0.2-13.5 ng g⁻¹) was recorded, the overall mean OTA level (2.17 ± 2.45 ng g⁻¹) was low. The highest recorded OTA concentration was 13.5 ng g⁻¹ in a robusta cherry sample and only five samples had OTA above 5 ng g⁻¹ level. The mean OTA level was higher in cherry (range: 1.63 ± 0.97-4.8 ± 3.90) than parchment (0.56 ± 0.35-1.10 ± 0.28), indicating a correlation between processing method and OTA contamination.
a Analytical Laboratory , Coffee Board, No. 1 Dr. B.R. Ambedkar Veedhi , Bangalore-560 001 , Karnataka , India.
T N
TN
Gopinandhan
G S
GS
Kannan
P
P
Panneerselvam
K
K
Velmourougane
Y
Y
Raghuramulu
J
J
Jayarama
D053000:Analytic Sample Preparation Methods; D002273:Carcinogens / Q000032:analysis*; D002846:Chromatography, Affinity; D002851:Chromatography, High Pressure Liquid; D056148:Chromatography, Reverse-Phase; D040503:Coffea / Q000737:chemistry*; D003069:Coffee / Q000737:chemistry / Q000191:economics / Q000592:standards; D005506:Food Contamination; D005511:Food Handling; D005513:Food Inspection; D019983:Guideline Adherence; D007194:India; D057230:Limit of Detection; D009793:Ochratoxins / Q000032:analysis*; D011042:Poisons / Q000032:analysis*; D015203:Reproducibility of Results; D012639:Seeds / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D002273:Carcinogens; D003069:Coffee; D009793:Ochratoxins; D011042:Poisons; C025589:ochratoxin A
Aspergillus; coffee; high performance liquid chromatography; ochratoxin A