スクラロースの生分解について

概要

論文の詳細を見る
The biodegradability of sucralose, a non-calorie high-intensity sweetener, in an activated sludge collected in Japan was investigated by analytical methods. HPLC revealed that sucralose was biodegraded via dechlorination in the Japanese activated sludge. 1,6-Dichlorofructose (1,6-DCF) and 6-chlorofructose (6-CF) were identified as degradation intermediates of sucralose by LC/MS and LC/MS/MS. It was found by HPLC that they were also biodegraded via dechlorination in the Japanese activated sludge. These results suggest that sucralose and its degradation intermediates, 1,6-DCF and 6-CF, are biodegradable in a natural environment in Japan. Aerobic enrichment culture of a mixture of sucralose and the activated sludge was made to identify sucralose-degrading bacteria. Bacteria belonging to the Bacteroides-Flavobacterium family as well as Sphingomonas (Sphingopyxis) and Xanthomonas genera were predominantly detected in the culture solution by 16S rDNA analysis and quinone profiling. These results suggest that these bacteria are involved in the biodegradation of sucralose.
2009-08-24