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The aim of this study was to evaluate the effects of alcohol-acid degradation on the structural and physicochemical characteristics of guar gum. Guar gum (50wt.%) was treated with methanol, ethanol, 2-propanol, or 1-butanol containing 1 or 2mL 36% hydrochloric acid at 75°C for 30–240min. The linear relationship between 1/Mw and time suggested that alcohol-acid degradation followed first-order kinetics...
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