کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7622676 | 1494526 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of leucrose production by dextransucrase from Streptococcus mutans and its application as an adipogenesis regulator
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Leucrose is a sucrose isomer which has an α-1,5-linkage, and slowly hydrolyzed to glucose and fructose by small intestinal α-glucosidases. Leucrose can be produced by an isomerization reaction of dextransucrase on a sucrose substrate. In this study, the recombinant dextransucrase from Streptococcus mutans (SmDS) was applied to optimize the reaction conditions for leucrose production. With a substrate mixture of 0.5 M sucrose + 1.0 M fructose, the greatest yield (ca. 24.5%) of leucrose was obtained by SmDS treatment at 30 °C for 120 h. When preadipocyte 3T3-L1 cells were treated with leucrose, this disaccharide inhibited intracellular lipid accumulation in a dose-dependent manner and significantly suppressed mRNA levels of major adipogenic genes, including CCAT/enhancer-binding protein α (C/EBPα), peroxisome proliferator-activated receptor-γ (PPARγ), fatty acid synthase (FAS), and sterol regulatory element-binding protein-1C (SREBP-1C). Phosphorylation of PI3 kinase/Akt/mTOR was also reduced with leucrose treatment. These results suggest that leucrose has a potential in regulating adipogenesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Functional Foods - Volume 39, December 2017, Pages 238-244
Journal: Journal of Functional Foods - Volume 39, December 2017, Pages 238-244
نویسندگان
Daeyeon Lee, Jihye Lee, Moon-Gi Hong, Byung-Hoo Lee, Young-Min Kim, Pahn-Shick Chang, Yuri Kim, Sang-Ho Yoo,