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Influence of Gum Arabic from <i>Acacia Senegal</i>var. <i>kerensis</i>on the Modifications of Pasting and Textural Properties of Cassava and Corn Starches

Influence of Gum Arabic from <i>Acacia Senegal</i>var. <i>kerensis</i>on the Modifications of Pasting and Textural Properties of Cassava and Corn Starches

作     者:Virate Jepkogei Kiprop Mary N. Omwamba Symon M. Mahungu Virate Jepkogei Kiprop;Mary N. Omwamba;Symon M. Mahungu

作者机构:Department of Dairy and Food Science and Technology Egerton University Egerton Kenya Department of Applied Sciences The Eldoret National Polytechnic Eldoret Kenya 

出 版 物:《Food and Nutrition Sciences》 (食品与营养科学(英文))

年 卷 期:2021年第12卷第11期

页      面:1098-1115页

学科分类:09[农学] 0901[农学-作物学] 

主  题:Starch Gum Arabic Pasting Properties Textural Properties Retrogradation 

摘      要:The use of hydrocolloids to modify the properties of native starches has been on the rise in the recent times due to the market demand for natural, safe and economical food ingredients. The objective of this study was to investigate the effect of gum Arabic from Acacia senegal var. kerensis to modify pasting and textural properties of corn and cassava starches, as an alternative to chemical and enzymatic modification. Blends were prepared by substituting the starches with gum at different levels (0%, 0.5%, 2.0%, 4.0%, 6.0% and 8.0%), whereas native corn and cassava starches were used as control. The pasting properties of the starch-gum mixed systems were determined using the Brabender viscograph while the textural properties (firmness, consistency, cohesiveness and work of cohesion) were determined using Texture Analyzer. Results showed that the gum Arabic significantly decreased all the viscosity parameters (peak viscosity, final viscosity, break down and setback values) of both starches at all levels of substitution. However, there was no significant effect of gum Arabic on the pasting temperature (72.05°C - 71.85°C) for corn starch and (68.90°C - 68.65°C)

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