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.

Improvements relating to the Manufacture of Non-putrefying Adhesive Paste.

Abstract: 14,844. VallÞs, V. June 27. Adhesives.-An adhesive paste which does not putrefy consists of water, fecula, white dextrin. alum, starch, borax, white gelatine, cornflour. gum arabic, essence of winter-green, and hydrochloric acid. All the ingredients, except the starch, are mixed together and brought to the boil, preferably in a copper vessel provided with a heating-coil. The starch, dissolved in water without having been brought to the boil, is then stirred in.

Genetic Characterisation of Kenyan Acacia Senegal for Possible Improvement in Gum Arabic Quality and Production

Abstract: Acacia senegal (L.) Willd is an arid and semi arid lands (ASALs), leguminous multipurpose tree species belonging to the subfamily Mimosoideae, family Fabaceae and subgenus Aculeiferum.

Valuation of the Environmental Role of Acacia senegal Tree in the Gum Belt of Kordofan and the Blue Nile Sectors, Sudan

Abstract: Cultivation of Acacia senegal is a key component of sedentary farming systems ac ross the gum belt in Sudan, which comprises in addition to fores try component, crop farming and livestock raising. Gum arabic from Acacia senegal tree is a major product of rainfed agricultural se ctor; it is well perceived for its significant contribution to household income of gum farmers and to foreign exchange earnings of the country. Gum trees provide in addition, a wide range of valuable environmental benefits in form of anti-des ertification insurance. They provide also fodder and fuel wood and contribute to increase in crop yield through nitrogen fixation. The study focused on environmental benefits of gum tree s within most important producing areas of the gum belt in Kordofan and the Blue Nile Sectors aiming mainly to finding out values for nonmarketable goods and services provided by such a tr ee in terms of soil protection and restoration of soil fertility. Contingent valuation method, hed onic price and replacement cost technique using market-oriented prices were chosen to value e nvironmental effects of gum trees on land quality and to determine share of the tree in carbo n sequestration. The valuation process was based on estimating cost of the fertiliser equivale nt to the amount of nitrogen provided by gum stands. The internal rate of return (IRR) for a 16 -year rotation gum stand was calculated to be approximately 15.2 percent. It was found that gum s tands can save considerable cost of supplying ammonia nitrate fertilizer equals to appr oximately US$ 78 per hectare annually. When ecological benefits and social values associated wi th gum tree cultivation were considered, the recalculated IRR for 16-year rotation gum stands ju mped from 15.2% to approximately 61 percent .

Evaluation of mixtures of maltodextrin and gum Arabic for the encapsulation of Andean blueberry ( Vaccinium meridionale ) juice by freeze‐drying

Abstract: Andean blueberry fruit is considered a source of bioactive compounds. However, its industrial applications as an ingredient are limited due to its low stability. In this work, Andean blueberry juice powders were obtained via freeze–drying. The effects of maltodextrin (MD) and gum Arabic (GA) as encapsulating agents were evaluated on the morphological, physicochemical, and rheological quality of the products, as well as in terms of the recovery of phenolic compounds. All the freeze–dried powders featured typical macroscopic and microscopic morphology, low moisture content (<5%) and water activity (aw < 0.3), high water solubility (>91%) and good flowability. The encapsulation with MD overall favoured higher water activity, solubility and flowability, and a significant increase of total phenolics recovery in the juice powders, compared with GA or GA:MD mixtures. The results showed that encapsulation by freeze–drying enables the production of Andean blueberry juice powders with suitable technological characteristics and potential as bioactive ingredients.