Preparation and characterization of carboxymethylated gum from pilliostigama reticulatum seeds gum

Ali, Khawla Abd Elwahab Elawad; Supervisor, -Essa Esmail Mohammad Ahmad

dc.contributor.author	Ali, Khawla Abd Elwahab Elawad
dc.contributor.author	Supervisor, -Essa Esmail Mohammad Ahmad
dc.date.accessioned	2021-05-23T13:58:39Z
dc.date.available	2021-05-23T13:58:39Z
dc.date.issued	2019-12-01
dc.identifier.citation	Ali,Khawla Abd Elwahab Elawad.Preparation and characterization of carboxymethylated gum from pilliostigama reticulatum seeds gum/Khawla Abd Elwahab Elawad Ali;Essa Esmail Mohammad Ahmad.-khartoum:Sudan University Of Science & Technology,College Of Science, 2019.-143p:ill ;28cm.-Msc.	en_US
dc.identifier.uri	http://repository.sustech.edu/handle/123456789/26156
dc.description	Thesis	en_US
dc.description.abstract	Carboxymethylated Piliostigama reticulatum seed gum (CM-PRSG) was prepared by treating the PRSG seed gum with monochloroacetic acid (MCA) in the presence of sodium hydroxide (NaOH). Various reaction conditions were optimized. The influence of the reaction temperatures and times, concentrations of sodium hydroxide and MCA on the degree of substitution (DS) were investigated. The result shows that Optimum preparation conditions for a CM-PRSG with DS of 0.0453 are: reaction temperature, 35оC; reaction time, 30 min; NaOH concentration was 4.15 mmol and MCA concentration was 4.15 mmol. The yield was 6.5 grams. Fourier-transform infrared analysis of the products indicates the successful carboxymethylation by the presence of the characteristics absorption bands at 1741 and 1000-1100 cm-1.	en_US
dc.description.sponsorship	Sudan University Of Science & Technology	en_US
dc.language.iso	en_US	en_US
dc.publisher	Sudan University Of Science & Technology	en_US
dc.subject	carboxymethylated	en_US
dc.subject	Preparation and characterization	en_US
dc.title	Preparation and characterization of carboxymethylated gum from pilliostigama reticulatum seeds gum	en_US
dc.type	Thesis	en_US