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Gellan gum prepared from the domestic raw materials of Kazakhstan is studied by methods of 1 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 Sphingomonas paucimobilis ATCC 31461 produces a biomass containing a high acyl gellan gum (HAG). The average molecular weights, M w , M n , M z , 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.
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Tatykhanova et al. (2024) studied this question.
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