Effects of 6-Benzylaminopurine on soybean sprouts growth and determination of its residue

ObjectiveThe effects of different concentrations of 6-Benzylaminopurine(6-BA) treatments on soybean sprouts growth were evaluated and the safety was measured by detecting the residues of 6-BA in soybean sprouts.MethodSpraying and soaking methods were respectively used to cultivate soybean sprouts , and fresh weight , axis length, axis diameter, germination rate and yield were measured after cultivation. 6-BA residues were determined with reference to DB S22/003-2012 in bean sprouts and nutrient solution of 6-BA. ResultThe results showed that the best yield was 6.96 for 1.0 mg/L group in spraying method and the best yield in soaking method was 7.15 for 5.0 mg/L group. No 6-BA residue was detected in each group of bean sprouts. 6-BA was in downtrend in 3.0 mg/L group nutri-ent solution and no 6-BA residue was detected since the third day. ConclusionSuitable concentration of 6-BA has an positive effect on soybean sprouts growth. 6-BA could be degraded and eliminated in nurturing process of soybean sprouts, hence 6-BA is proved to be of high safety.