Table 2. Residual characteristics of buprofezin in the washing stages of rice

Washing method		Brown rice		Polished rice
		Residual level (mg/kg)1)	% loss2)	Residual level (mg/kg)1)	% loss2)
Rice:water ratio	Rice	21.80±0.59a	–	1.73±0.05a	–
	1:1	12.97±0.54b	40.5	0.84±0.02b	51.7
	1:1.5	12.78±0.70bc	41.4	0.75±0.05b	56.6
	1:2	11.73±0.39c	46.2	0.77±0.06b	55.5
Washing times	Rice	21.80±0.59a	–	1.73±0.05a	–
	1	17.10±1.00b	21.6	1.26±0.12b	27.4
	2	16.74±0.26b	23.2	0.94±0.08c	45.9
	3	13.67±0.46c	37.3	0.81±0.03c	53.0
	4	11.65±0.18d	46.5	0.61±0.06d	64.6
	5	9.31±0.29e	57.3	0.57±0.04d	67.2

Mean of triplication concentration±standard deviation.
[(Raw product residue - processing residue) / Raw product residue] × 100.
Values followed by different superscript letters in the same column are significantly different (p<0.05).