卡拉胶的修订后的核磁共振化学位移数据。

The revised NMR chemical shift data of carrageenans.

作者信息

van de Velde Fred, Pereira Leonel, Rollema Harry S

机构信息

Wageningen Centre for Food Sciences, PO Box 557, 6700 AN Wageningen, The Netherlands.

出版信息

Carbohydr Res. 2004 Sep 13;339(13):2309-13. doi: 10.1016/j.carres.2004.07.015.

DOI:10.1016/j.carres.2004.07.015

PMID:15337460

Abstract

A new set of (13)C and (1)H NMR chemical shifts of most common carrageenan types is given relative to DSS as the internal standard according to the IUPAC recommendations. Moreover, the chemical shifts of characteristic signals for pyruvate acetal and floridean starch are reported. Additionally, chemical shifts of common internal standards, such as methanol, DMSO and acetone, were measured at different temperatures and pH values.

摘要

根据国际纯粹与应用化学联合会（IUPAC）的建议，给出了相对于DSS作为内标的最常见卡拉胶类型的一组新的（13）C和（1）H NMR化学位移。此外，还报道了丙酮酸缩醛和红藻淀粉特征信号的化学位移。此外，还测量了常见内标物（如甲醇、DMSO和丙酮）在不同温度和pH值下的化学位移。