| dc.description.abstract | Profenofos an organophosphate class of pesticide that are often used to
protect chilies and tomatoes from pests, which will leave residues on crop.
The purpose of study was to determine residue levels of pesticide in chilies
and tomatoes, to determine the effect of washing on pesticide residues in chilies
and tomatoes as well as to determine the most effective method of removing
pesticide residues.
Methods of washing were done was soaking in water, soaking in warm
water, wash with running water, and soaking in a soap solution of washing fruit
and vegetables each performed for 15 minutes. Chilies and tomatoes that had
been treated, extracted and their profenofos residue levels to determined by a gas
chromatograph equipped with a flame photometric detector (GC-FPD). Samples
of chilies and tomatoes are used in this study were obtained directly from farmers
in Tanjung Anom who sprayed one day before harvest.
The results of study indicated that chilies has not been washed containing
profenofos residue of 1.4809 mg/kg, which was still below the maximum limits
for profenofos residue is allowed, while tomatoes contain residues of profenofos
residues that exceed the maximum residue limits of 7.9223 mg/kg. All of the
treatment effect on the reduction profenofos residues chilies and tomatoes.
Profenofos residues in chilies after soaking in water, soaking in warm water,
wash with running water and soaking with a soap solution of washing fruit and
vegetables decreased to 35.37, 35.39, 60.10, and 38.22%, respectively, while in
tomatoes respectively is 14.87, 46.90, 76.44 and 62.82%. Method of washing
with running water was the most effective to reduced profenofos residues in
chilies and tomatoes, with interval confidence 95% and p-value < 0.05 | en_US |
