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CAS NO.: 9049-76-7
EC/LIST NO.: 618-565-2
Hydroxypropyl starch is a type of modified starch used as a food additive.
Hydroxypropyl starch has the E number E1440.
Hydroxylpropyl starch is not absorbed intact by the gut, but are significantly hydrolyzed by intestinal enzymes and then fermented by intestinal microbiota.
Hydroxypropyl starch phosphate is a modified sugar.
More precisely, it is a naturally obtained, pre-gelatinized sugar and its gluten-free as well.
Hydroxypropyl starch is isolated from starch granules of corn and wheat when reacted with propylene and phosphoric acid.
Due to its non-ionic character, it has excellent compatibility with wide variety of ingredients including salts.
Hydroxypropyl starch comes as an off-white powder, which is quite free-flowing.
Similar to main starch preparation the Hydroxypropyl starch phosphate also tends to swell in normal or cold water.
This characteristic is particularly helpful in case of providing immediate viscosity and can provide body to formulas.
Sometimes, certain ingredients provide a greasy feeling in the formula, which is aesthetically unacceptable.
In that case, it helps cut down on grease and rather provides conditioning after-feel.
When this starch phosphate is used in any formulas, it reduces the processing time by simplifying emulsion procedure.
As mentioned earlier, it is a free-flowing powder, thus, it can be used in powders and makeup.
Hydroxypropyl starch is used in all types of creams and lotions, foundations, color cosmetics, shampoos and conditioners, liquid makeups, liquid talc, sunscreen products, antiperspirants, and mascara.
Starch is a carbohydrate polymer consisting of alarge number of glucose units linked together primarily by alpha 1-4 glucosidic bonds.
The starch polymers come in two forms: linear (amylose)and branchedthrough alpha 1-6 glucosidic bonds (amylopectin), with each glucose unit possessing a maximum of three hydroxyls that can undergo chemical substitution.
Hydroxypropyl starch is a modified starch.
Hydroxypropyl starch is obtained by etherification of food starch with propylene oxide, in accordance with good manufact uring practice.
Hydroxypropylation results in substitution of hydroxyl groups with 2-hydroxypropyl ether.
Hydroxypropyl starch may additionally be subjected to acid, alkali, enzyme, or bleaching treatment in accordance with good manufacturing practice.
HYDROXYPROPYL STARCH belongs to the class of organic compounds known as oligosaccharides.
These are carbohydrates made up of 3 to 10 monosaccharide units linked to each other through glycosidic bonds.
Based on a literature review a small amount of articles have been published on HYDROXYPROPYL STARCH.
Hydroxypropyl Starch Ether(HPS) is unfamiliar to many people, and thought to be a little different from common starch, but that’s not the case.
Hydroxypropyl starch has a very small amount used in mortar products, and a very low addition amount enables to achieve very good quality effects.
Hydroxypropyl starch is a white fine powder free from plasticizers, prepared from natural plants, which are modified, highly etherified, and spray dried.
Hydroxypropyl starch is totally different from common or modified starch.
Hydroxypropyl methyl cellulose (HPMC for short), also known as hypromellose or hydroxypropyl methyl cellulose ether, is prepared from selection of highly pure cotton cellulose, treated in 35-40℃ alkali liquor for 0.5h, squeezed to smash cellulose, and properly aged at 35℃ to make average polymerization degree of alkali fiberobtained within the required range.
Put alkali fiber into the reaction kettle, then add propylene oxide and methyl chloride in order for 5h etherification at 50-80℃, with the maximum pressure of 1.8MP.
Afterwards, add an appropriate amount of hydrochloric acid and oxalic acid into 90℃ hot water for washing the materials and expanding the volume.
Then use the centrifugal machine for dehydration and finally become neutral with repeated washings.
Hydroxypropyl starch is widely used in building, chemical, coatings, pharmaceutical and military industries, respectively as a film former, binder, dispersant, stabilizer and thickener.
Hydroxypropyl starch is a Starch etherified with propylene oxide, rendering it more resist.
to thermal degradation and bacterial attack Hydroxypropyl starch uses and applications include:
Emulsifier, thickener, binder, stabilizer in foods; fluid loss control agent in drilling muds, completion and workover fluids; adhesives
Hydroxypropyl starch is a derivative of natural starch, used primarily for fluid-loss control in drilling muds, drill-in, completion and workover fluids.
Being nonionic, it is only slightly affected by salinity and hardness in fluids.
Linear and branched carbohydrate polymers in natural starch have three reactive OH groups on each glucose unit.
During manufacture, these polymers are reacted with propylene oxide, adding hydroxypropyl (CH(OH)CH2CH3) groups at the OH positions by an ether linkage.
By adding the hydroxypropyl groups, the HP starch becomes more resistant to thermal degradation and bacterial attack.
Hydroxypropyl starch is a modified starch with E-number 1440.
The modification consists of treating the starch with a hydroxyl group (OH).
The hydroxypropyl starch used by Pharma Nord is extracted from fermented GMO-free corn, potatoes and peas.
Hydroxypropyl starch is digested in the gastrointestinal tract just like ordinary starch and fermented by intestinal bacteria.
Pharma Nord uses hydroxypropyl starch as a surface treatment agent in some vegetable capsules.
The treatment makes the capsule more resistant to thermal degradation and bacterial attack.
Hydroxypropyl starch may be used without quantitative restriction in all foods that may generally contain additives.
Hydroxypropyl and pregelatinized hydroxypropyl starch were evaluated as disintegrant and binder in tablet formulations.
The study showed that the use of pure hydroxypropyl starch showed no advantage as a disintegrant or binder over the actually available tablet ingredients.
Pregelatinized hydroxypropyl starch showed some good disintegrating properties and could be used as a binder in wet granulation.
Hydroxypropyl starch is a derivative of natural starch.
Hydroxypropyl starch is obtained by etherifying starch with propylene oxide, rendering it more resistant to thermal degradation and bacterial attack.
Hydroxypropyl starch is described in the JPE as a hvdroxypropyl ether of corn starch.
Hydroxypropyl starch occurs as a free-owing white to off-white coarse powder.
Hydroxypropyl starch is used as a binding agent; disintegrant; emulsifying agent; thickening agent and viscosity-increasing agent.
Being a modified starch, it has been used in combination with carrageenan in the production of soft capsules.
Hydroxypropyl starch has been used experimentally in hydrophilic matrices, where it was shown to be an effective matrix for tablets designed for controlled-release drug delivery systems.
Hydroxypropyl starch has also been used experimentally in the production of hydrophilic matrices by direct compression.
Hydroxypropyl starch is used in antiseptics and is used widely in cosmetics.
Hydroxypropyl starch is also used analytically as a bio separation aqueous-phase-forming polymer.
Hydroxypropyl starch was synthesized by modified sago starch with hydroxypropylation reaction.
Hydroxypropyl starch nanoparticles with mean particle sizes of 110 nm are obtained by controlled precipitation through the drop-wise addition of dissolved hydroxypropyl starch solution into excess absolute ethanol.
Piperine was loaded onto hydroxypropyl starch nanoparticles and native starch nanoparticles via the in-situ nanoprecipitation process.
Hydroxypropyl starch nanoparticles exhibited higher piperine loading capacity as compared to native starch nanoparticles with the maximum loading capacity of 0.46 and 0.33 mg.mg-1, respectively.
Piperine was release from hydroxypropyl starch nanoparticles in a slow and sustained manner at pH 1.2 over the period of 24 hours.
Whereas piperine was completely released from native starch nanoparticles within 16 hours.
Hydroxypropyl Starch Phosphate is a naturally-derived sugar used in cosmetics and beauty products because of its ability to serve as a surfactant and emulsifier.
Hydroxypropyl starch stabilizes emulsions at any temperature, gives formulas immediate viscosity, reduces the greasiness of products and delivers a smooth, thick feeling.
A hydrolyzate product of hydroxyprophylated starch comprising greater than about 15 % by weight DP 2-6 hydrolyzate polymers and characterized by a DE value of from about 20 to about 45 is disclosed which when combined with a high potency sweetener is useful as a reduced calorie replacement for sucrose and starch hydrolyzate products in food products.
IUPAC NAME:
(3R,4S,5S,6R)-2-[[(2R,4R,5R,6R)-4,5-dihydroxy-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-2-yl]methoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
6-[[3,4-dihydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxymethyl]-2-[4,5-dihydroxy-2-(hydroxymethyl)-6-methyloxan-3-yl]oxy-5-[3-(2,3-dihydroxy-2-methylpropoxy)-4-hydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxyoxane-3,4-diol
STARCH, 2-HYDROXYPROPYL ETHER
Starch, 2-hydroxypropyl ether
SYNONYMS:
α-D-Glucopyranose, O-α-D-glucopyranosyl-(1→4)-O-[α-D-glucopyranosyl-(1→6)]-O-α-D-glucopyranosyl-(1→4)-
α-D-Glucopyranose, O-α-D-glucopyranosyl-(1->4)-O-[α-D-glucopyranosyl-(1->6)]-O-α-D-glucopyranosyl-(1->4)- [ACD/Index Name]
α-D-Glucopyranosyl-(1->4)-[α-D-glucopyranosyl-(1->6)]-α-D-glucopyranosyl-(1->4)-α-D-glucopyranose [ACD/IUPAC Name]
α-D-Glucopyranosyl-(1->4)-[α-D-glucopyranosyl-(1->6)]-α-D-glucopyranosyl-(1->4)-α-D-glucopyranose [German] [ACD/IUPAC Name]
α-D-Glucopyranosyl-(1->4)-[α-D-glucopyranosyl-(1->6)]-α-D-glucopyranosyl-(1->4)-α-D-glucopyranose
