Gum arabic

About: Gum arabic is a research topic. Over the lifetime, 2197 publications have been published within this topic receiving 47782 citations. The topic is also known as: acacia gum.

Potential, Distribution, Ethno-Botany and Tapping Procedures of Gum Producing Acacia Species in the Somali Region, Southeastern Ethiopia

Abstract: A survey study was undertaken in eight districts of the Somali Region, southeastern Ethiopia to identify gum producing species; their distribution and abundance; gum-tapping practices; and local uses. Nine gum producing Acacia species; widely known by pastoralists and agro-pastoralists in the Region were identified. Dihun and Gerbo Districts in Fik Zone were the high potential areas for gum arabic (Acacia Senegal(L.) wild.) and gum talh (Acacia seyal Del.) production based on the abundance of the source species. Degahamedow District in Degahabur Zone was another promising gum production area following the Districts in Fik Zone. However, both A. senegal and A. seyal were abundantly found in all study Districts, with the former being the most abundant and widely distributed throughout the study Zones. The gum resource in the Somali Region appeared under-exploited due to lack of proper tapping and extraction skills in the area. Apart from gum tapping, the woody vegetation of the Region supports livestock production, mitigates desertification, ensures biodiversity maintenance, and provides immense non-wood forest products. Therefore, promotion of gum extraction in the Somali Region both for economic benefit of the community and sustainable management of the fragile ecosystem is recommended. Keywords : Acacia , Bushland; Gum Arabic; Gum Talh; Somali Region East African Journal of Sciences Vol. 1 (1) 2007: pp. 69-78

Wall material selection for microencapsulating glicine max and punica granatum oils by spray drying.

Abstract: Pomegranate seed oil, even though highly sensitive to oxidation, has been extensively studied due to its anti-inflammatory potential. Microencapsulation by spray drying can protect the oil and increase its shelf life. Modified starch, maltodextrin and gum arabic are evaluated by a mixture design to get the better wall material composition. The better response for drying process yield (41%) and oxidative stability (42%) were achieved using modified starch and gum arabic at the same proportion as wall material.

Antimicrobial microparticle and uses thereof

Abstract: The present invention relates to a microparticule having a wall comprising gelatin and gum arabic encapsulating thyme oil, and forming a controlled release system The invention has uses in the pharmaceutical, cosmetic and food industry, and has an antimicrobial action useful for product storage

The Effect of Silicic Acid in the Fountain Solution

Abstract: Silicic acid is a water soluble colloidal resin which can be obtained commercially. The effect of silicic acid as a. desensitizer in fountain solution was studied. The resin of this colloidal solution was compared to gum arabic solution. The study included the investigation of the physical properties of the solution at different concentrations as well as press performance. Comparisons were drawn regarding wettability, viscosity, surface tension, dot size change, minimum dampening rate to clean-up the non-image areas, reso lution, resistance to scum, blinding of image areas, rate of de-inking overrun non-image areas, performance distinction between lithium silicate and sodium silicate, and changes with aging in solubility properties of silicates in fountain solutions. The experiments were carried out under carefully control led conditions; the only variable present was one ingredient of the fountain solution. The concentration of the necessary solution was determined. The effect of concentration was discussed and reported. A considerable number of the results were statistically analyzed by the two factor analysis of variance. The effectiveness of silicic acid solution as a substi tute for gum arabic solution varied. Silicic acid is compar able in regard to the ability of the solution to clean the plate with minimum number of sheets, resistance to scum, reso lution, and blinding of image areas. Performance distinc tions between lithium silicate and sodium silicate and solu bility properties of silicates with aging were noted. Gum arabic produces smaller changes in dot size and does not blind images as quickly as silicic acid does. The advantages of silicic acid are good resistance to bacterial attack, longer shelf life, and better v/etting of the plate than gum arabic when properly diluted. Abstract approved: , thesis advisor , title and department , dateapproved: , thesis advisor , title and department , date

The influence of environmental factors in the production of gum arabic (acacia senegal, fabaceae) – a meta-analysis.

Abstract: The gum Arabic obtained from the trunk and branches of the woody species Acacia senegal and Acacia seyal is a polysaccharide exudate with numerous biochemical properties, whose production can suffer impacts of several environmental factors. Thus, the objective of this work is to evaluate the effect of some environmental factors on the production of this exudate. For this study, we compared the production of the gum in the rainy season and the dry season through a meta-analysis, using for these purpose studies already published in several databases. To complement, a meta-regression was performed to evaluate the influence of environmental variables on the effect of rain on rubber production. We used 13 papers that met the criteria of the meta-analysis. It was possible to observe that the production of gum Arabic is higher in the rainy season when compared to the dry season. In addition, an effect of the minimum temperature and humidity of the air on the best production was noticed.