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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.


Papers
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Journal ArticleDOI
TL;DR: An inexpensive animal model is described, for investigation of the immunogenicity of substances such as food additives, and Purification of commercially available gum preparations led to a significant (P less than 0.005) reduction of the immune response under in vivo test conditions.

40 citations

Book ChapterDOI
01 Jan 2009
TL;DR: This chapter addresses the manufacture, chemical structure, functional properties, main applications and regulatory issues for three well-established hydrocolloids, namely gum tragacanth, gum karaya and larchwood arabinogalactan along with those of mesquite gum, whose full potential utilization is still to be exploited in several fields of application.
Abstract: The collection, processing and trading of plant exudate gums, other than gum arabic, and the production of arabinogalactan from the heartwood of Western larch tree represent an important economic activity in many regions of the world. What this family of materials shares in common is that they are comprised of highly branched heteropolysaccharide structures. This chapter addresses the manufacture, chemical structure, functional properties, main applications and regulatory issues for three well- established hydrocolloids, namely gum tragacanth, gum karaya and larchwood arabinogalactan along with those of mesquite gum, whose full potential utilization is still to be exploited in several fields of application.

40 citations

Journal ArticleDOI
TL;DR: In this paper, the authors studied the role of gum arabic in Sudan's economy and found that the gum from the Acacia senegal tree has played a large economic role for smallholders for generations.
Abstract: Livelihood diversification can be crucial for poor rural households in the African Sahel. Migration is a common diversification strategy during the dry season, but there are also areas with significant strategies on the farm, such as incomes from gum and resins. Sudan is a country where the income from gum arabic, the gum from the Acacia senegal tree, has played a large economic role for smallholders for generations, but there are signs of a declining production which is detrimental if people have no alternative incomes. The results showed that in parts of the country, the 1984 drought caused an event-driven change resulting in a discontinuation of production. However, in other parts of the country, the agricultural system providing gum arabic proved to be more resilient to the drought and the incomes from gum arabic still play a large role. The results illustrated a complexity of driving forces, regional differences and a large variability in incomes between households. Some causes were indirect such as prices, drought, precipitation and locust, whereas the others were direct and hence more controllable by households. This study underlined the direct causes, such as how labour input is prioritised between livelihood activities, which have not been given as much attention in previous literature. Secondly, the need for a holistic view of livelihoods is underlined in order to understand the future of gum arabic production. Empirical data were collected from extensive fieldwork.

40 citations

Journal ArticleDOI
TL;DR: This work represents the Raman spectra of 15 natural artists' materials that were obtained from local market in Mexico that are not endemic to the region, but are often used in local conservation practice.

40 citations

Journal ArticleDOI
TL;DR: In this paper, a facile and effective nanoparticle synthesis approach based on aqueous solutions of gum acacia (GA), also known as gum arabic without the addition of any toxic reagents either for the reduction or capping for the effective stabilization of palladium (Pd) nanoparticles with a narrow size distribution was presented.
Abstract: This article presents the findings of a facile and effective nanoparticle synthesis approach based on aqueous solutions of gum acacia (GA), also known as gum arabic without the addition of any toxic reagents either for the reduction or capping for the effective stabilization of palladium (Pd) nanoparticles with a narrow size distribution (with a H 2 PdCl 4 /GA ratio of 1:29.411, the solution the average diameter was 9.1 nm, and the standard deviation was ±0.3 nm). In this approach, the particle size was controlled by the manipulation of the temperature, time, and concentration of GA. The synthesized Pd nanoparticles were well characterized by ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, dynamic light scattering, and thermogravimetric analysis. This route was very simple and reproducible, and further study on the application of these nanoparticles for various organic transformations is underway.

40 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023147
2022285
2021120
2020128
2019137
2018127