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Merck
CN

A0512

直链淀粉 来源于马铃薯

used as amylase substrate

别名:

α-Amylose

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关于此项目

线性分子式:
(C6H10O5)n
化学文摘社编号:
UNSPSC Code:
12352201
PubChem Substance ID:
NACRES:
NA.25
MDL number:
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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

SMILES string

O1[C@@H]([C@@H]([C@H]([C@@H]([C@H]1CO)O[C@H]3O[C@@H]([C@H]([C@@H]([C@H]3O)O)O)CO)O)O)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO

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

General description

直链淀粉是淀粉中普遍存在的碳水化合物聚合物,由一条长α-1,4-链的线性链和罕见的α-1,6链分支点构成。它通常存在颗粒的非晶区。它具有左旋α螺旋结构,且螺旋结构的一圈由六到八个脱水葡萄糖基组成。
血清淀粉酶的底物。

Application

马铃薯中的直链淀粉已用作标准品,以通过碘结合比色法测定大米淀粉的表观直链淀粉含量(AAC)。

Biochem/physiol Actions

直链淀粉是一种多聚葡萄糖多糖,与支链淀粉一起生成淀粉。 支链淀粉的糖苷键为是α-1,4键。直链淀粉用于鉴定、鉴别和表征淀粉酶。直链淀粉用作增稠剂、胶凝剂和乳液稳定剂。直链淀粉用于制备具有药物释放潜力的薄膜和膜。

Other Notes

为了全面了解我们针对客户研究提供的各种多糖产品,建议您访问我们的碳水化合物分类页面。

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Shujun Wang et al.
Scientific reports, 6, 28271-28271 (2016-06-21)
A thorough understanding of starch gelatinization is extremely important for precise control of starch functional properties for food processing and human nutrition. Here we reveal the molecular mechanism of starch gelatinization by differential scanning calorimetry (DSC) in conjunction with a
Xingli Liu et al.
Carbohydrate polymers, 283, 119148-119148 (2022-02-15)
In order to provide a theoretical basis on how germination treatment modulated the pasting behaviors of starches from native and germinated waxy brown rice, impacts of germination on the molecular and supramolecular structures and pasting behaviors were evaluated. Multiple analytical
Caili Li et al.
Carbohydrate polymers, 245, 116557-116557 (2020-07-29)
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
Shujun Wang et al.
Scientific reports, 6, 20965-20965 (2016-02-11)
Starch retrogradation is a term used to define the process in which gelatinized starch undergoes a disorder-to-order transition. A thorough understanding of starch retrogradation behavior plays an important role in maintaining the quality of starchy foods during storage. By means
Jun Shen et al.
Journal of chromatography. A, 1286, 41-46 (2013-03-20)
Six ortho- and six meta-substituted phenylcarbamate derivatives of amylose were prepared and their chiral recognition abilities were evaluated as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). The substitution at the meta-position on the aromatic ring was more preferable

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全球贸易项目编号

货号GTIN
A0512-250MG04061833334027
A0512-1G04061835365944
A0512-25G04061833334034
A0512-5G04061833334041

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