TY - JOUR
T1 - Evaluation of enhanced hygroscopicity, bifidogenicity, and anticariogenicity of enzymatically synthesized β-galactosyl-trehalose oligosaccharides
AU - Ryu, Soo In
AU - Kim, Bong Gwan
AU - Park, Myung Soo
AU - Lee, Yoon Bok
AU - Lee, Soo Bok
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2007/5/16
Y1 - 2007/5/16
N2 - β-Galactosyl-trehalose oligosaccharides (β-GTOs) were enzymatically prepared as a mixture of 6-β-galactosyl-trehalose (1) and 4-β-galactosyl-trehalose (2) with a 9:1 ratio (w/w). The β-GTO mixture showed a highly enhanced hygroscopicity as compared to those of trehalose and other sugars used. At 72 h of incubation under 90% relative humidity and room temperature, it had a large increase in weight due to its moisture absorption, which was five times larger than that of trehalose, 1.9 times larger than that of sucrose, and 1.5 times larger than that of maltotriose. It was very effective in the growth promotion of Bifidobacteria, such as Bifidobacterium longum and Bifidobacterium bifidum, which was better than the growth promotion in the cases of trehalose and galactooligosaccharide. It also showed a highly anticariogenic property; it had only 10% cell proliferation of Streptococcus sobrinus for that of the sucrose control and 60% inhibition of insoluble glucan synthesis. Its effectiveness of inhibition was two and 1.5 times better than that of trehalose and one and two times than xylitol, respectively, against cell growth and glucan synthesis. Conclusively, the functionality of the β-GTO in terms of hygroscopicity, bifidogenicity, and anticariogenicity was considerably improved as compared to that of trehalose. It is thus suggested that the β-GTO might be applied as an effective humectant and prebiotic substitute with enhanced noncariogenicity in food applications.
AB - β-Galactosyl-trehalose oligosaccharides (β-GTOs) were enzymatically prepared as a mixture of 6-β-galactosyl-trehalose (1) and 4-β-galactosyl-trehalose (2) with a 9:1 ratio (w/w). The β-GTO mixture showed a highly enhanced hygroscopicity as compared to those of trehalose and other sugars used. At 72 h of incubation under 90% relative humidity and room temperature, it had a large increase in weight due to its moisture absorption, which was five times larger than that of trehalose, 1.9 times larger than that of sucrose, and 1.5 times larger than that of maltotriose. It was very effective in the growth promotion of Bifidobacteria, such as Bifidobacterium longum and Bifidobacterium bifidum, which was better than the growth promotion in the cases of trehalose and galactooligosaccharide. It also showed a highly anticariogenic property; it had only 10% cell proliferation of Streptococcus sobrinus for that of the sucrose control and 60% inhibition of insoluble glucan synthesis. Its effectiveness of inhibition was two and 1.5 times better than that of trehalose and one and two times than xylitol, respectively, against cell growth and glucan synthesis. Conclusively, the functionality of the β-GTO in terms of hygroscopicity, bifidogenicity, and anticariogenicity was considerably improved as compared to that of trehalose. It is thus suggested that the β-GTO might be applied as an effective humectant and prebiotic substitute with enhanced noncariogenicity in food applications.
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U2 - 10.1021/jf0636115
DO - 10.1021/jf0636115
M3 - Article
C2 - 17429983
AN - SCOPUS:34249875437
VL - 55
SP - 4184
EP - 4188
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
SN - 0021-8561
IS - 10
ER -