Determination of heavy metals in sugar
1986
Bungorn Nuanchan
Analyses of lead, copper, cadmium and arsenic in 262 samples of sugar produced in Thailand indicated that the average concentrations of lead, copper and cadmium found in centrifungal raw sugar were 0.48, 0.32 and 0.13 mg/kg respectively, average concentrations of lead, copper and cadmium in mill white sugar were 0.35, 0.32 and 0.07 mg/kg and average concentrations of lead, copper and cadmium in refined sugar, 0.43, 0.18 and 0.01 mg/kg were also found. For centrifugal raw sugar the maximum amounts of lead and cadmium at 1.94 and 0.33 mg/kg respectively were observed in the samples collected from the Northern region. The maximum amount of copper, 1.62 mg/kg was found in the samples collected from the Central region. All samples of mill white sugar collected from the Central region showed that the maximum amounts of lead, copper and cadmium contaminated were 1.89, 1.42 and 0.32 mg/kg respectively. The maximum amounts of lead and copper in refined sugar sample collected from the Northern region were 1.22 and 0.67 mg/kg while the maximum amount of cadmium, 0.17 mg/kg was found in the sample collected from the Eastern region. Results obtained also indicated that 62.59 % of samples collected were contaminated by lead, 59.92 % by copper and 45.80 % by cadmium. Determination of arsenic in all samples collected were undetected.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Thai National AGRIS Centre, Kasetsart University
