STRUCTURE OF TREHALOSE DERIVATIVES .6. STRUCTURE AND TASTE OF 3,6/3',6'-DIANHYDRO-ALPHA,ALPHA-TREHALOSE MONOHYDRATE

被引：1

作者：

LEE, CK

KOH, LL

XU, Y

机构：

来源：

FOOD CHEMISTRY | 1995年 / 52卷 / 02期

关键词：

D O I：

10.1016/0308-8146(94)P4196-M

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The X-ray diffraction structure of 3,6:3',6'-dianhydro-alpha,alpha-trehalose (3,6-anhydro-alpha-D-glucopyranosyl 3,6-anhydro-alpha-D-glucopyranoside) monohydrate is described. The molecule has exact two-fold symmetry through the anomeric oxygen atom. The pyranosyl ring has a slightly distorted C-1(4) chair conformation and the cis-fused five-membered anhydro ring has a near perfect (4)E envelope conformation. X-ray crystal data show an absence of a sweet AH,B glucophore, which would explain the absence of sweetness. Evidence indicating the importance of hydrophobic character to bitterness is presented.

引用

页码：153 / 156

页数：4

共 30 条

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