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.

Water-soluble lubricant for condom, and condom coated with water-soluble lubricant for condom

Abstract: PROBLEM TO BE SOLVED: To obtain a water soluble lubricant for condom, having sliminess which is lacking in silicone oil without causing whitening of condom by water absorption and obtain a condom coated with the water-soluble lubricant for condom. SOLUTION: This lubricant is composed of a water-soluble wetting agent without causing whitening of condom and a water-soluble sliminess-providing agent for applying sliminess to condom, and aqueous solution of one or more kinds of compounds from among sodium lactate, trimethylglycine, dl-sodium malate, di-pyrrolidone-carboxylic acid salts, sugar alcohols and glycerol is used as the water-soluble wetting agent and one or more kinds of compounds from among gum arabic, sodium alginate, propylene glycol alginate, carrageenan, carboxymethyl cellulose sodium, xanthan gum, gellan gum, tamarind gum, dextran, furcellaran, pullulan and sodium polyacrylate are used as the water-soluble sliminess-providing agent.

The use of gum arabic as a lateretic soil stabilizer

Abstract: This research work was conducted to ascertain the suitability of stabilizing lateritic soil with Gum Arabic and to determine the proper economic percentage which could improve the engineering properties of the soil. Sample of the lateritic soil was obtained and the Gum Arabic was purchased and prepared. The laboratory tests were carried out, according to the standards, using 0%, 2%, 4%, 6%, 8%, and 10% of the Gum Arabic by weight. From the result of Atterberg Limit test, 0% and 4% of Gum Arabic recorded the lowest and highest values of 15.93% and 26.25% of plastic limit respectively. The test also showed that the soil was in A-6 class of ASSHTO classification (clayed soils). While for shrinkage limit, 0% and 10% recorded the lowest and highest values of 10.00% and 12.14% respectively. In the compaction test, the MDD values decreased with an increase in the Gum Arabic in which 0% and 8% recorded the highest and lowest values of 1.88g/cm 3 and 1.64g/cm 3 respectively. For the compressive strength, 50% of the cubes tested, met the minimum strength requirement of 1.5N/mm 2 by the Civil Engineering Department of ABU Zaria, in collaboration with Nigeria Building and Road research institute for lateritic blocks. It is recommended, therefore, that the minimum of 2% of Gum Arabic be used to stabilize lateritic soil.

d-ª‡-methylphenethylamides and pharmaceutical preparations containing such amides

Abstract: The invention comprises N-d-a -methyl-phenethylamides of the formula C6H5.CH2.CH(CH3).NH.CO.R in which R is hydrogen, HOCH2-, or CH3.CHOH-, and their preparation by reacting d-a -methylphenethylamine with formic, glycolic or lactic acid, or an ester thereof, refluxing the mixture and separating the product. The products are used therapeutically. In examples, d-a -methylphenethylamine is heated with (1) ethyl lactate; (2) lactide; (3) ethyl formate or ethylene diformate; and (4) ethyl glycollate, to form the corresponding lactic, formic or glycollic amides.ALSO:Nervous stimulant pharmaceutical compositions comprise a N-d-a -methylphenylethylamide of formic, lactic or glycolic acid of the formula C6H5.CH2.CH(CH3).NH.CO.R, wherein R is H, -CH2OH or -CH(OH).CH2, and an excipient. The compounds can be administered parenterally, but are more preferably administered orally in combination with a non-toxic edible excipient. Suitable excipients include lactose, sugar, starch, pre-gelatinized starch, gum arabic, gum tragacanth, gum acacia, magnesium stearate, talc and corn starch. An example describes a preparation suitable for tablets or capsules containing N-d-a -methylphenylethyl, lactamide, sugar, starch, gum acacia, talc, magnesium stearate and stearic acid.

Blackberry pulp microencapsulation with arrowroot starch and gum arabic mixture by spray drying and freeze drying

Abstract: The objective of this research work was to obtain blackberry pulp powder (BL, without encapsulating agent) and microencapsulated blackberry pulp (ML, with encapsulating agent :mixture of starch arrowroot and gum arabic (1:1)) obtained by freeze drying and spray drying and evaluate their physico-chemical properties. The yield of blackberry freeze drying process was higher than the value found for spray drying process. The presence of encapsulating agent and drying method used for producing the powders influenced the average particle size, diameter, hygroscopicity, solubility, wettability and anthocyanin content of the powders. Keywords: process yield; average size; hygroscopicity; solubility; anthocyanin; antioxidant property

Threats to Green Gum Arabic Production in Sudan

Abstract: The rural population of Sudan, and much of its urban population, depends on rests. Trees are the main source of energy and provide...