The extent of pyruvylation and acetylation is not characterized in this product.
价格与库存信息目前不能提供
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生物来源
Xanthomonas campestris
质量水平
表单
powder
颜色
faint yellow to beige
储存温度
room temp
InChI
1S/C13H10O/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-8H,9H2
InChI key
GJCOSYZMQJWQCA-UHFFFAOYSA-N
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应用
黄原胶是一种阴离子多糖，由β-(1→4)-D-吡喃葡萄糖葡聚糖骨架和交替残基上的(1→3)-α-D-吡喃甘露糖-(2→1)-β-D-葡萄糖醛酸-(4→1)-β-D-吡喃甘露糖侧链组成。大约一半的末端甘露糖残基是4,6-丙酮酸，而大多数内部甘露糖残基则是6-乙酰化的。 其特性使其成为有用的药物递送系统基质成分。 它在水性介质和含有刺槐豆胶或瓜尔胶的软凝胶中可形成稳定的药物混悬液。 黄原胶可模拟脂质的质地，在研究小鼠体内由消耗含脂质试剂引发的信号转导途径实验中用作对照。
储存分类代码
11 - Combustible Solids
WGK
WGK 1
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
其他客户在看
M Jain et al.
Phytopathology, 109(10), 1811-1819 (2019-05-16)
'Candidatus Liberibacter' spp. are uncultured insect endosymbionts and phloem-limited bacterial plant pathogens associated with diseases ranging from severe to nearly asymptomatic. 'Ca. L. asiaticus', causal agent of Huanglongbing or citrus "greening," and 'Ca. L. solanacearum', causal agent of potato zebra
Anuj Kumar et al.
Biofabrication, 12(2), 025029-025029 (2020-02-08)
To achieve a three-dimensional (3D) microenvironment for complex tissue regeneration is a great challenge when developing biomaterials as artificial extracellular matrix (ECM) with properties similar to that of native tissue. Polysaccharide-based hydrogel shows great potential as ECM in the regeneration
Manuel Viuda-Martos et al.
Food & function, 9(1), 573-584 (2017-12-22)
The aim of this work was to determine the protective effect of different dietary fibers on (i) the recovery and bioaccessibility indexes, and (ii) the stability of polyphenolic compounds (phenolic acids, flavonoids and anthocyanins) of maqui berry powder subjected to
Yunmei Luo et al.
International journal of biological macromolecules, 144, 967-977 (2019-11-11)
Controlling and delaying the retrogradation of gelatinized rice starch (GRS) can improve the quality of GRS-based foods during storage. Here, we evaluated the influence of corn protein hydrolysates (CPHs), rice protein hydrolysates (RPHs), wheat protein hydrolysates (WPHs), and soybean protein
Marijn M Kool et al.
Carbohydrate polymers, 97(2), 368-375 (2013-08-06)
Differently modified xanthans, varying in degree of acetylation and/or pyruvylation were incubated with the experimental cellulase mixture C1-G1 from Myceliophthora thermophila C1. The ionic strength and/or temperature of the xanthan solutions were varied, to obtain different xanthan conformations. The exact
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What is the degree of pyruvylation and acetylation?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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Is xanthan gum suitable for food applications, is food grade?
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This product is not suitable for food applications and is intended for research use only. Currently, a food grade product option is not available.
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Bonjour, Serait-il possible de connaître la masse molaire estimée de Xanthan gum from Xanthomonas campestris s'il vous plaît? Merci, Cordialement.
1 answer-
Molecular weight has not been determined. However, reported values in the literature suggest a molecular weight greater than 1 million (The Merck Index, 12th Ed., Entry #10191). Other publications may range from 2 million to as high as 50 million.
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What is the number of repeating units for product G1253?
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There is no information available for the number of repeating units.
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Is xanthan gum sterile and suitable for use in cell culture?
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This item is not sterile and has not been tested for use cell culture. At this time, a cell culture tested version of this material is not available.
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What is the molecular weight of the Xanthan gum?
1 answer-
Molecular weight has not been determined. However, reported values in the literature suggest a molecular weight greater than 1 million (The Merck Index, 12th Ed., Entry# 10191). Other publications may range from 2 million to as high as 50 million.
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