Synonyms | tapon w-gum trogum w-13stabilizer STARCH INDICATOR STABLE STARCH INDICATOR STARCH INDICATOR SOLUTION WHEAT(TRITICUMVULGARE)STARCH |
CAS | 9005-25-8 |
EINECS | 232-679-6 |
Molecular Formula | (C6H10O5)n |
Density | 1.5 |
Melting Point | 256-258°C |
Solubility | H2O: 20mg/mL, colorless, clear to slightly turbid |
Appearance | Powder |
Color | White |
PH | 4-7 (100g/l, H2O, 25℃)(slurry) |
Storage Condition | Store at 2-8°C |
Physical and Chemical Properties | This product is white, odorless and tasteless powder. It's hygroscopic. Insoluble in cold water, ethanol and ether. |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36 - Irritating to the eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 1 |
RTECS | GM5090000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 11081100 |
Toxicity | LD50 intraperitoneal in mouse: 6600mg/kg |
Reference Show more | 1. [IF=9.147] Yanlei Li et al."Salt reduction in semi-solid food gel via inhomogeneous distribution of sodium-containing coacervate: Effect of gum arabic."Food Hydrocolloid. 2020 Dec;109:106102 2. [IF=4.952] Lei Zhang et al."Efficient hydrolysis of raw starch by a maltohexaose-forming α-amylase from Corallococcus sp. EGB."Lwt Food Sci Technol. 2021 Dec;152:112361 3. [IF=6.475] Jifan Zhang et al."α-Amylase inhibition of a certain dietary polyphenol is predominantly affected by the concentration of α-1, 4-glucosidic bonds in starchy and artificial substrates."Food Res Int. 2022 Jul;157:111210 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | corn starch (corn starch) also known as maize starch. The common name is six grain powder. White microstrip light yellow powder. The corn was prepared by crushing, sieving, precipitating, drying, and grinding after impregnation with 0.3% sulfurous acid. Ordinary products contain a small amount of fat and protein. Strong hygroscopicity, the highest can be more than 30%. |
properties | there is a strange feature of corn starch with water: it will harden by a fast impact, but not by a slow impact. The corn starch and water are mixed in a volume ratio of about 3:2 and stirred uniformly, and the amount of water is increased or decreased depending on the situation. This shear thickening fluid called oobleck is a non-Newtonian fluid. |
Application | first, the application of corn starch sugar industry to produce high maltose syrup, fructose syrup, maltodextrin and other aspects of a wide range of uses. Second, corn starch for modified starch industry production of modified starch in paper, chemical and other industries are widely used. Three, corn starch for fermentation industry production of monosodium glutamate, citric acid and many other products. Fourth, corn starch is also widely used in metallurgy, casting and other industries. |
production process | 2.1 selection of raw materials choose to remove impurities, particle fill, no infestation, no mildew corn as raw materials. 2.2 Preparation of sulfurous acid sulfur dioxide is prepared by burning sulfur, and then dissolved in water to prepare sulfurous acid. It is required that the newly prepared sulfurous acid solution contain S02 0.25 ~ 0.3%. 2.3 The soaking and crushing of corn are soaked by countercurrent method or diffusion method, and the newly prepared sulfurous acid solution is put into group to soak the corn in the tank, and the tank is poured by countercurrent method according to the soaking liquid, in turn to the soaking time is shorter to move (pour pot), with this method, the extract concentration of up to 7 ~ 9%, the extract is further concentrated when the consumption of steam less than static method. After soaking, the corn was separated from the endosperm by the second crushing and separation process. The soaked corn germ contains about 60% water and has great elasticity. At the same time, the connection between the germ, corn bran and endosperm is weakened, and the connection between protein and starch in corn endosperm is weakened, when broken easily isolated from the corn kernel. In addition, when disrupted, the starchy portion of the endosperm is milled into fragments from which about 25% of the starch is released. 2.4 Separation and washing of germ the corn kernel is broken once, most of the germ is separated from the endosperm, the germ is separated by the floating tank, and then enters the second crushing, after two times of crushing and separation, germ was isolated. The separated germ is sprayed with continuous water on the vibrating screen to wash away the starch milk, gluten, etc. adhered to the surface of the germ, and preliminarily dehydrated to a water content of less than 36% by a centrifuge. 2.5 grinding of the slurry the crushed and separated endosperm is composed of starch granules, gluten, seed coat, and endosperm fragments containing a large amount of starch, it needs to be finely milled by primary and secondary impact milling, so as to make the endosperm particle size finer, and at the same time to maximize the release of starch associated with protein and cellulose, and create conditions for the separation of the next step. 2.6 sieving of dregs and washing the suspension formed after grinding of the slurry, containing free starch, fine particles of gluten and cellulose (fine and coarse dregs). The coarse and fine residue was separated from the starch suspension using a seven-stage pressure curved sieve, and the residue was subjected to six-stage countercurrent washing to wash the starch attached thereto. 2.7 Separation of starch and gluten the separation of starch and gluten is carried out in a disc centrifuge, because the particle size and specific gravity of starch granules are larger than those of protein granules, its sedimentation rate in suspension is faster than that of protein particles, and the starch and protein can be separated efficiently by a centrifugal separator. 2.8 washing and mechanical dehydration of starch in order to remove soluble and insoluble proteins, reduce the acidity of starch and increase the concentration of suspension, a ten-stage cyclone was used for countercurrent washing. The washed starch is mechanically dehydrated using a horizontal doctor blade centrifuge until the moisture content of the wet starch is 38-40%. 2.9 The drying of starch is air flow drying, and the screw conveyor is fed into the looser according to the yield requirement (depending on the water content of the finished starch), and the wet starch which has been mechanically dehydrated is fed into the air flow drying system in the looser, at the same time, hot air previously purified and heated to 140 ° C. Was fed for drying. |
uses | pharmaceutical excipients, is the main raw materials of dextrin, maltose, glucose used in aquatic products, food, new pharmaceutical excipients in petroleum and other industries, used as thickeners, stabilizers, fillers, sugar-free drug excipients, etc. Analysis of iodine indicators used as drug excipients and food thickeners, stabilizers, filler, etc. indicator for iodometric titration. Substrate for amylase. |
autoignition temperature | 400°C |