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A0512

Sigma-Aldrich

Amylose from potato

used as amylase substrate

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Synonym(s):
α-Amylose
Linear Formula:
(C6H10O5)n
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

biological source

potato

Quality Level

form

powder

impurities

amylopectin, essentially free
≤10% ethanol
≤2% butanol

color

white to off-white

solubility

0.05 M NaOH: 1 mg/mL, clear to slightly hazy, colorless

storage temp.

room temp

InChI

1S/C18H32O16/c19-1-4-7(22)8(23)12(27)17(31-4)34-15-6(3-21)32-18(13(28)10(15)25)33-14-5(2-20)30-16(29)11(26)9(14)24/h4-29H,1-3H2/t4-,5-,6-,7-,8+,9-,10-,11-,12-,13-,14-,15-,16+,17-,18-/m1/s1

InChI key

FYGDTMLNYKFZSV-PXXRMHSHSA-N

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1 of 4

This Item
A6237A7005A3176
vibrant-m

A0512

Amylose from potato

vibrant-m

A6237

Apyrase from potato

vibrant-m

A7005

β-Amylase from sweet potato

vibrant-m

A3176

α-Amylase from porcine pancreas

biological source

potato

biological source

-

biological source

sweet potato

biological source

Porcine pancreas

solubility

0.05 M NaOH: 1 mg/mL, clear to slightly hazy, colorless

solubility

-

solubility

-

solubility

-

impurities

amylopectin, essentially free, ≤2% butanol, ≤10% ethanol

impurities

-

impurities

-

impurities

-

color

white to off-white

color

-

color

-

color

-

storage temp.

room temp

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

General description

Amylose, a ubiquitous carbohydrate polymer in starch, is made up of a long α-1,4-linked linear chain with rare α-1,6-linked branch points. It is usually seen in the amorphous regions of the granule. It has a left-handed α-helical structure with one turn of the helix consisting of six to eight anhydroglucose units.

Application

Amylose from potatoes has been used as a standard to determine the apparent amylose content (AAC) of rice starch by the iodine-binding colorimetric method.

Biochem/physiol Actions

Amylose is a polyglucose polysaccharide that makes starch(s) together with amylopectin. The glucosidic bonds of amylopectin are α-1,4 linkages. Amylose is used to identify, differentiate and characterize amylase(s). Amylose is used as a thickening and gelling agent, and emulsion stabilizer. Amylose is used to prepare films and membranes with potential use in drug delivery.

Substrates

A substrate for serum amylase.

Other Notes

To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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High-amylose wheat starch (HAWS) and flour (HAWF) have the potential to deliver food products with enhanced nutritional functionality, but structure/function relationships are not well understood. We report the structural bases for differences in water absorption and pasting properties for HAWS
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Several methods were used to investigate the possibility of preparing inclusion complexes between amylose and polytetrahydrofurans (PTHF) via direct mixing. Potato amylose (M(v) ∼ 200 kg/mol) and synthetic amylose (M(n) 42 kg/mol) were complexed with PTHF having different molecular weights
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