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主要文件

10120

Sigma-Aldrich

支链淀粉 来源于玉米

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About This Item

CAS号:
9037-22-3
EC 号:
232-911-6
MDL编号:
MFCD00130510
UNSPSC代码:
12352201
NACRES:
NA.25
价格与库存信息目前不能提供

生物来源

maize (





)

表单

powder

灼烧残渣

≤0.1%

颜色

white to off-white

SMILES字符串

O1[C@@H]([C@@H]([C@H]([C@@H]([C@H]1CO[C@H]4O[C@@H]([C@H]([C@@H]([C@H]4O)O)O[C@H]5O[C@@H]([C@H]([C@@H]([C@H]5O)O)O)CO)CO)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/C30H52O26/c31-1-6-11(35)13(37)19(43)28(50-6)55-24-9(4-34)52-27(21(45)16(24)40)48-5-10-25(56-29-20(44)14(38)12(36)7(2-32)51-29)17(41)22(46)30(53-10)54-23-8(3-33)49-26(47)18(42)15(23)39/h6-47H,1-5H2/t6-,7-,8-,9-,10-,11-,12-,13+,14+,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26+,27+,28-,29-,30-/m1/s1

InChI key

WMGFVAGNIYUEEP-WUYNJSITSA-N

相关类别

一般描述

α;-含 α-1,4-葡聚糖-1,6-交联；每 25 个葡萄糖单位一个末端组

应用

支链淀粉是一种以葡萄糖为基础的高度支链多糖，它与直链淀粉共同形成淀粉。支链淀粉的糖苷键为 α-葡聚糖链中的 α- 1,4 和分支点的α-1，6。玉米中的支链淀粉在结构上与其他植物中的支链淀粉不同，可用于淀粉发育的研究。

其他说明

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。
支链淀粉的结构表征[1]

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCL7769
BCCL0192
BCCK0063
BCCJ5946
BCCF5959

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T. Baba et al.
Agricultural and Biological Chemistry, 48, 1763-1763 (1984)
Fan Zhu et al.
Carbohydrate research, 346(18), 2913-2925 (2011-11-11)
φ,β-Limit dextrins of domains and clusters of sweetpotato amylopectin were subjected to extensive hydrolysis by Bacillus amyloliquefaciens α-amylase to release building blocks and reveal the internal structures of clusters. The composition of building blocks was analyzed by size-fractionation, gel permeation
David A Johnston et al.
Carbohydrate research, 346(17), 2777-2784 (2011-11-08)
Seven different starches from potato, rice, maize, waxymaize, amylomaize-VII, shoti, and tapioca, and potato amylose and potato amylopectin have been reacted with benzaldehyde, catalyzed by ZnCl(2), to give new water-soluble starches and water soluble-amylose and soluble-amylopectin. In contrast to the
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
Shazia Juna et al.
Journal of chromatography. A, 1219, 161-172 (2011-12-07)
A detailed study of the elution behaviour, apparent molecular characteristics and hydrodynamic properties of amylopectin-type fraction (isolated from normal corn starch) in aqueous media employing asymmetrical flow field-flow fractionation (AF4) was undertaken by systematically varying the channel flow (F(ch)), cross
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Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. I want to know how many monomers compose one polymer in average.

    1 answer

    1. Unfortunately, the average molecular weight of this product is not determined, therefore the number of monomeric subunits comprising the polymer cannot be estimated.

      Helpful?

  4. what is the molecular weight of amylopectin from maize?

    1 answer

    1. The molecular weight of this product has not been determined. However, a number of references suggest a molecular weight of 828.7.
      See the link below to the ChemBK listing: https://www.chembk.com/en/chem/9037-22-3

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