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.

Effect of emulsifier type and homogenization temperature and pressure on physical properties of peanut extract

Abstract: Summary Peanut extract (90.4% moisture, 3% protein and 4.5% fat, w/w) was homogenized using a two-valve homogenizer and the effects of emulsifier and homogenization temperature and pressure on the physical properties were studied. Homogenization without emulsifier at 72°C increased the emulsion stability (ES) and sedimentation index (SI) by 5–11% and 15% respectively, compared to homogenization at 60°C. Homogenization with gum arabic increased the ES and viscosity by 17–22% and 127–176% respectively, and decreased SI by 26–38%. Homogenization with soya lecithin increased the ES and viscosity by 28–33% and 16–18% respectively, and decreased SI by 35–44%. Homogenization with Recodan EMS® (monodiglycerides + glycerol monostearates + soya lecithin) or Recodan CM® (monodiglycerides + glycerol monostearates + guar gum + carrageenan) increased the ES and colour lightness (L*) by 43–60% and 12% respectively, and decreased SI by 44–48%. Addition of Recodan CM® increased the viscosity by 482%. ES and L* increased with pressure. Extracts homogenized without emulsifier, with gum arabic, soya lecithin or Recodan EMS® were Newtonian whereas the extract homogenized with Recodan CM® was pseudoplastic.

Synthesis of quinoxalines using Gum Arabic as a nontoxic metal-free biocatalyst at room temperature in aqueous media

Abstract: In the present study, Gum Arabic was used as a metal-free biocatalyst in the synthesis of quinoxaline derivatives through condensation of 1,2-diamines and 1,2-dicarbonyl compounds at room temperature under aqueous media. The advantages of the present protocol included the appropriate reaction times, high yields, and environmental friendliness. The structure of products was approved by FT-IR and 1H-NMR spectroscopy.

Examining disadoption of gum arabic production in Sudan

Abstract: Gum arabic production in Sudan has developed over the years in a well-established traditional bush-fallow system in which the gum tree (Acacia senegal) is rotated with annual crops. Following the Sahel drought, the gum area has suffered from deforestation and gum production has declined. Several programs have been developed to stimulate gum production; however, many original adopters have disadopted gum production and the bush-fallow system. In this paper we apply a logit model to study the decision-making behavior of farmers in west Sudan and to identify the socio-economic factors influencing disadoption of gum production and gum agroforestry system. Variables that measure farmer’s wealth were found significant in explaining the disadoption behavior. Off-farm work was also found to positively influence the disadoption decision. Results show that a higher level of income from annual crops decreases the probability of disadoption, which suggests that annual crops and gum production do not compete but rather complement each other within the farm household economy. Therefore, policy measures aiming to boost the production of annual crops in the region might reduce seasonal labor migration and accordingly stimulate gum production.

Effect of gum arabic coating on antioxidative enzyme activities and quality of apricot (Prunus armeniaca L.) fruit during ambient storage.

Abstract: The effect of gum arabic (GA) coating was studied on apricot fruit at 20 ± 1°C for 8 days. GA coating substantially reduced weight loss, disease incidence, malondialdehyde concentration, and hydrogen peroxide compared to the control. GA coating resulted in significantly higher total phenols, ascorbic acid, and antioxidant activity in contrast to the control. GA coating also suppressed cellulase, pectin methylesterase, and polygalacturonase activity in contrast to the non-coated fruit. In addition, GA-coated apricot fruit had substantially higher catalase, peroxidase, ascorbate peroxidase, and superoxide dismutase enzymes activities in contrast with the control. Similarly, GA coating inhibited soluble solids content increase and inhibited the reduction in titratable acidity in coated fruit. The fruit coated with GA coating also had significantly better sensory and overall eating quality compared to the control apricots. In conclusion, GA could be considered an appropriate edible coating for quality conservation of apricots. PRACTICAL APPLICATIONS: Apricot is a well renowned and nutrients rich fruit. However, apricot has comparatively short shelf life potential due to its susceptibility to rapid senescence and deterioration under ambient conditions. GA is an eco-friendly and biodegradable coating which is considered relatively cheap as compared with other coating types. In our present work, application of gum arabic [GA (10%)] edible coating maintained significantly higher quality of harvested apricot fruit as compared with the control. The outcomes of the present work are of global significance with respect to apricot industry. So, GA coating could be considered an appropriate edible coating for quality conservation of the harvested apricot fruit.

Stable liquid red beet color and chewing gum containing same

Abstract: STABLE LIQUID RED BEET COLOR AND CHEWING GUM CONTAINING SAME Abstract of the Disclosure A stable liquid red beet color is provided which may be stored at room temperature and which is formed of spray dried liquid red beet color carried on a solid mediu, such as gum arabic, or maltodextrin, which is dispersed in a liquid medium, such as glycerin, hydrogenated vegetable oil or propylene glycol A chewing gum containing the above stable liquid red beet color is also provided