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Acacia

In addition, by functionalizing them with target drug we can use them as drug delivery vehicles in nano-drug delivery applications. [Pg.227]

The strength retention of a homogeneous blend of PLA in admixture with an additive in a certain amount can be represented as follows  [Pg.227]

o is the initial molecular weight of the polymer, Mn,s is the molecular weight of the polymer at that it looses strength, Acid is the molecular weight of the acid, t is the duration in weeks within that strength retention is required, and /ci, k2 are some kinetic constants. [Pg.227]

The degradation rates of the additives employed as 2% component in a PLA blend are shown in Table 8.4. [Pg.228]

The degradation rate in Table 8.4 is the slope of a graph of ln(M ) against the degradation time in weeks. A preferred additive for use is lauric add. This may be employed as the acid per se or, as a derivative, for example in the form of lauric acid anhydride. [Pg.228]


A wide variety of plant exudates have been used ia foods and medicines for centuries, including acacia, karaya, and ghatti. Plant gums derived from seeds iaclude arabic, guar, locust bean, tamatind, and tara. AH play a role ia fat replacement either singly or ia mixtures. [Pg.119]

Gum Arabic. Gum arabic [9000-01-5] is an exudate of the Acacia tree, found in the Middle East. It dissolves readily in water to produce low viscosity solutions. It is used in confectionery products, bakery toppings, beverages, fro2en dairy products, and dry drink mixes (86). [Pg.443]

Coa.cerva.tlon, A phenomenon associated with coUoids wherein dispersed particles separate from solution to form a second Hquid phase is termed coacervation. Gelatin solutions form coacervates with the addition of salt such as sodium sulfate [7757-82-6] especially at pH below the isoionic point. In addition, gelatin solutions coacervate with solutions of oppositely charged polymers or macromolecules such as acacia. This property is useful for microencapsulation and photographic apphcations (56—61). [Pg.207]

Gum Arabic. Gum arable [9000-01-5] is a dried exudate from a species of the acacia tree found in various tropical and semitropical areas of the world. Most of the commercial gum comes from a single species, Jicacia Senegal. The largest producers are the RepubHc of Sudan and several other West African countries, with over 75% of the world s production coming from the Sudan. The best grade comes from Jicacia Senegal and about 90% of the Sudan s production is from this source the remainder comes Jicacia sejal... [Pg.434]

The acacia trees produce gum arable only under adverse conditions, lack of moisture, poor nutrition, and hot temperatures. Gum arable is produced at wounded surfaces of the acacia trees. The wounds are generally produced deUberately in cultivated trees by stripping bark during the dry season. The gum is collected by hand over a period of several weeks with average yields of 250 grams per tree per year. Cmde exudates are hand sorted and exported before processing and milling to various specifications. [Pg.434]

Gum arable comes from various species of Acacia. The gum exudes through cracks, injuries, and incisions in the bark and is collected by hand as dried tears. Gum arable is unique among gums because of its high solubiUty and the low viscosity and Newtonian flow of its solutions. While other gums form highly viscous solutions at 1—2% concentration, 20% solutions of gum arable resemble a thin sugar symp in body and flow properties. [Pg.488]

In 1959 a new non-protein L-a-amino acid was isolated from the seeds of Acacia willardiana and later from other species of Acacia-, it proved to be l-/3-amino-/3-carboxyethyluracil (977) (59ZPC(316)164). The structure was confirmed by at least four syntheses in the next few years. The most important involves a Shaw synthesis (Section 2.13.3.1.2e) of the acetal (975) and hydrolysis to the aldyhyde (976) followed by a Strecker reaction (potassium cyanide, ammonia and ammonium chloride) to give DL-willardiine (977) after resolution, the L-isomer was identical with natural material (62JCS583). Although not unambiguous, a Principal Synthesis from the ureido acid (978) and ethyl formylacetate is the most direct route (64ZOB407). [Pg.146]

It has become customary to call the principal members of this group the lupin alkaloids, but in view of their wide distribution in the Papilionaceae, a better title is that suggested above, since they appear to be the characteristic alkaloids of this leguminous sub-family. This is not the only type of alkaloid found in the Leguminosae other types occur, e.g., in Acacia (p. 631), Crotalaria (p. 601), Erythrina (p. 386), Mimosa (p. 4) and Pentaclethra (p. 776). [Pg.116]

Acacia spp. According to White, the tops of A. floribunda Sieb., A. longifolia Willd. and A. pruinosa Cunn. contain tryptamine (3-association with j3-phenylethylamine (N.Z. Journ. Sci. Tech., 1944, 25, B, 157). [Pg.771]

Abrine, 484 Abrotine, 772 Abrtis precatorius, 484 Abuta spp., 371 Acacia spp., 771 Acetylcholine, 262, 518 Acetylomithine, 170, 171, 172 Achillea spp., 779 Achilleine achilletine, 779 Acolyctine, 686 Aconine, 673, 675, 679, 685 Aconines, nuclear structure, 693 Aconite alkaloids, 673 Aconitine, 673, 674, 775 oxidation products, 676 Aconitines, pharmacological action, 690 Aconitinone, 676 Aconitoline, 675... [Pg.784]

Farnesol, CjsH gO, is an aliphatic sesquiterpene alcohol, which occurs in ambrette seed oil, and flower oils of the type of acacia, lime flowers, mignonette, and lilac flowers. [Pg.124]

Akazien-gummi, n. acacia gum, gum arabic. -holzt n. acacia wood, -dl, n. acacia oil. -rinde,/. wattle bark. [Pg.16]

Erbsen-baum, m. Siberian acacia, -erz, n, pea ore (form of limonite). [Pg.134]

Schoten-dom, m. acacia black locust, -ge-wachse, n.pl. leguminous plants, -pfeffer, m. red pepper, capsicum, -pflanze,/. leguminous plant. [Pg.395]

I chose a French martini to greet my freedom from worry, guilt and doubt—a drink with the pink of health. A French martini is typically a vodka martini, with the addition of Chambord Liqueur Royale de France, a black raspberry Cognac liqueur that also includes citrus, cinnamon, vanilla and French acacia honey. [Pg.204]

Gum acacia gum tragacanth (a similar gum) gum karaya (also a similar gum) gum ghatti (also a similar gum)... [Pg.149]

Gum arabic (gum acacia) is used as the lickable glue on stamps and envelopes, and as a flavor stabilizer (emulsifier) in soft drinks. It has components that bind to water, and components that bind to oils, making it an emulsifier but not a surfactant (because of the high molecular weight). [Pg.150]

Ingredient of various plants and trees ("catechu" from Uncaria gambir and Acacia catechu), obtained by extraction with water or ethyl acetate. [Pg.459]

Gum Arabic (GA) or Acacia gum is an edible biopolymer obtained as exudates of mature trees of Acacia Senegal and Acacia seyal which grow principally in the African region of Sahe in Sudan. The exudate is a non-viscous liquid, rich in soluble fibers, and its emanation from the stems and branches usually occurs under stress conditions such as drought, poor soil fertility, and injury (Williams Phillips, 2000). [Pg.3]

Table 1 presents the chemical composition and some properties of both gums reported by Osman et al., 1993 and Williams Phillips, et al., 2000. Despite having different protein content, amino acid composition is similar in both gums. Recently, Mahendran et al., 2008, reported the GA amino acid composition in Acacia Senegal, being rich in hydroxyproline, serine, threonine, leucine, glycine, histidine. Table 2. [Pg.5]


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ACACIA absolute

Acacia (lowers

Acacia Arabica

Acacia Auriculiformis

Acacia Research Corp

Acacia Senegal

Acacia Senegal powder

Acacia Seyal gum

Acacia auriculiformis triterpenoid saponin from

Acacia baileyana

Acacia berlandieri

Acacia catechu

Acacia confusa

Acacia dealbata

Acacia decurrens

Acacia farnesiana

Acacia fasciculifera

Acacia floribunda

Acacia galpinii

Acacia georginae

Acacia honey

Acacia jacquemontii

Acacia karoo

Acacia longifolia

Acacia maidenii

Acacia mangium

Acacia meamsii

Acacia mearnsii

Acacia melanoxylon

Acacia mimosa

Acacia mollissima

Acacia nemu

Acacia nigrescens

Acacia nilotica

Acacia plantations

Acacia podalyriaefolia

Acacia pycnantha

Acacia pycnantha, gum

Acacia sedillense

Acacia seyal

Acacia sieberiana

Acacia species

Acacia spp

Acacia suspending agents

Acacia sutherlandii

Acacia syrup

Acacia tomentosa

Acacia tortilis

Acacia victoriae

Acacia willardiana

Acacia willardiana [Willardiine

Acaciae flos

Acaciae gummi

Albumin-acacia coacervates

Black acacia

COX/LOX dual inhibitors from Acacia catechu

Calcium acacia

Cholesterol acacia

Demulcent acacia

Emulsifying agents acacia

Excipient, acacia

From Acacia catechu

Galactose from Acacia gums

Gelatin-acacia complex coacervation

Gum acacia

Gum arabic acacia

Gums Acacia Senegal

Next page acacia

Sodium Acacia

Spray-dried acacia

Stabilizing agents acacia

Subject acacia

Sweet acacia

Tragacanth and acacia

Typology of French acacia honeys based on their concentrations in metallic and nonmetallic elements

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