کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
604435 | 880309 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study of conformational properties of cereal β-glucans by computer modeling Study of conformational properties of cereal β-glucans by computer modeling](/preview/png/604435.png)
Molecular modelling was used to study the conformational properties of cereal β-glucans and compared with experimental results. Followed the steps of exploring global minima of β 1-4 and β 1-3 linked disaccharides and building up the repeating units, the consecutive cellotriosyl units, which are considered as reaction sites of β-glucan chains, were created and then characterized as a three fold helix with a pitch of 41.35 Å. Mostly importantly, the 3D molecular model of cereal β-glucans was created and the moderately extended sinuous chain conformation was first visualized. The conformational parameters of cereal β-glucans were calculated by RMMC simulation, which are in good agreement with experimental results. The calculated parameters also revealed that the chain stiffness of β-glucans increased with the tri/tetra ratio.
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Journal: Food Hydrocolloids - Volume 26, Issue 2, March 2012, Pages 377–382