Optimisation of Siberian Larch (Larix sibirica) Galactoglucomannan Sulfation Process with Sulfamic Acid in DMSO

被引：1

作者：

Kazachenko, Aleksandr S. ^{[1
,2
]}

Vasilyeva, Natalya Yu. ^{[1
,2
]}

Malyar, Yury N. ^{[1
,2
]}

Sudakova, Irina G. ^{[1
]}

Chudina, Anna I. ^{[1
]}

Fetisova, Olga Yu. ^{[1
]}

Berezhnaya, Yaroslava D. ^{[1
]}

机构：

[1] Krasnoyarsk Sci Ctr SB RAS, Fed Res Ctr, Inst Chem & Chem Technol SB RAS, Krasnoyarsk, Russia

[2] Siberian Fed Univ, Krasnoyarsk, Russia

来源：

JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY | 2022年 / 15卷 / 03期

关键词：

larch; galactoglucomannan; sulfation; galactoglucomannan sulfates; sulfamic acid; urea; Box-Behnken plan; MOLECULAR-WEIGHT LIGNINS; ARABINOGALACTAN; BINDING; ANTICOAGULANT; CELLULOSE; SITE;

D O I：

10.17516/1998-2836-0307

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of temperature, duration of the process of sulfation of larch wood galactoglucomannan, and the amount of the sulfating complex on the sulfur content (wt %) in galactoglucomannan sulfates during sulfation with sulfamic acid in DMSO in the presence of urea was studied. By mathematical optimization according to the Box-Behnken plan, sulfation conditions were established to achieve a high sulfur content in galactoglucomannan sulfates. The optimal conditions for sulfation of larch wood galactoglucomannan are temperature 89.5 & DEG;C, duration 2.3 hours, amount of sulfating complex per 1 g galactoglucomannan 55.4 mmol. The high quality of the approximation is proved by the high value of R 2adj = 92.9 %, as well as by the values P < 0.0019 (with an allowable range of 0.05). The introduction of a sulfate group into the galactoglucomannan molecule was confirmed by FTIR spectroscopy and elemental analysis.

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页码：440 / 451

页数：12

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