Gulnur S. Tatykhanova, Nargiz N. Gizatullina, Gulnar M. Kudaibergenova, Ramza Zh. Berzhanova, Togzhan D. Mukasheva, Sarkyt E. Kudaibergenov
{"title":"Comparative Study of Gellan Gum Derived from Domestic Raw Materials of Kazakhstan and Commercial Gellan","authors":"Gulnur S. Tatykhanova, Nargiz N. Gizatullina, Gulnar M. Kudaibergenova, Ramza Zh. Berzhanova, Togzhan D. Mukasheva, Sarkyt E. Kudaibergenov","doi":"10.1002/masy.202400004","DOIUrl":null,"url":null,"abstract":"<p>Gellan gum prepared from the domestic raw materials of Kazakhstan is studied by methods of <sup>1</sup>H NMR spectroscopy, FTIR, GPC, TGA, and compared with characteristics of commercial gellan gum. Fermentation on glucose-fructose syrup of Zharkent and Burunday corn starch plants (Kazakhstan) by <i>Sphingomonas paucimobilis</i> ATCC 31461 produces a biomass containing a high acyl gellan gum (HAG). The average molecular weights, <i>M</i><sub>w</sub>, <i>M</i><sub>n</sub>, <i>M</i><sub>z</sub>, and polydispersity index (PDI) of HAG are determined by GPC. Low acyl gellan (LAG) is obtained by treatment of HAG with alkaline solution. It is shown that the spectral and thermal characteristics of HAG and LAG produced from the glucose-fructose syrup and commercial gellan gum are similar.</p>","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"413 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Symposia","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/masy.202400004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Materials Science","Score":null,"Total":0}
引用次数: 0
Abstract
Gellan gum prepared from the domestic raw materials of Kazakhstan is studied by methods of 1H NMR spectroscopy, FTIR, GPC, TGA, and compared with characteristics of commercial gellan gum. Fermentation on glucose-fructose syrup of Zharkent and Burunday corn starch plants (Kazakhstan) by Sphingomonas paucimobilis ATCC 31461 produces a biomass containing a high acyl gellan gum (HAG). The average molecular weights, Mw, Mn, Mz, and polydispersity index (PDI) of HAG are determined by GPC. Low acyl gellan (LAG) is obtained by treatment of HAG with alkaline solution. It is shown that the spectral and thermal characteristics of HAG and LAG produced from the glucose-fructose syrup and commercial gellan gum are similar.
期刊介绍：
Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.
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