日度归档：2024年7月9日

ALD-PEG-acryloyl 2k 丙醛聚乙二醇丙烯酰 分子量MW 2000

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上海金畔生物科技有限公司提供ALD-PEG-acryloyl 2k 丙醛聚乙二醇丙烯酰 分子量MW 2000

品牌：
货号：JPB-03730
中文名：丙醛聚乙二醇丙烯酰 分子量MW 2000
英文名：ALD-PEG-acryloyl 2k
端基取代率：》95%
纯度：》95%
分子量：2k/2000
分散度：《1.05
包装：1克/5克/10克

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槲皮素的性质及应用领域总结-技术文章

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槲皮素的性质及应用领域总结

槲皮素属黄酮类化合物，存在于许多植物的花、叶、果实中，多以甙的形式存在，如芦丁(芸香甙)、槲皮甙、金丝桃甙等，经酸水解可得到槲皮素。槲皮素易溶于热乙醇（1:23），可溶于甲醇、乙酸乙酯、冰醋酸、吡啶、丙酮等，不溶于水、苯、乙醚、氯仿、石油醚等，碱性水溶液呈黄色，几乎不溶于水，乙醇溶液味很苦。

槲皮素的性质：

1.其外观呈黄色针状结晶性粉末状。

2.对热稳定，分解温度314℃。能提高食品中色素的耐光性，防止食品香味的改变。遇金属离子会变色。

3.微溶于水，易溶于碱性水溶液。栎皮酮及其衍生物是广泛存在于各种蔬菜和水果中的一类黄酮化合物。如洋葱、沙棘、山楂、槐、茶叶等。

4.具有抗自由基、抗氧化、抗菌、抗病毒、抗过敏等作用。用于猪油等时，各种抗氧指标与BHA或PG相似。

5.因其2、3位间有双键，3′、4′处有2个羟基，具有能作为金属螯合作用或油脂等氧化过程中产生的游离基团接受体的功能，因而能作为抗坏血酸或油脂的抗氧化剂，有利尿作用。

槲皮素的应用：

1.抗氧化剂。主要用于油脂、饮料、冷饮、肉类加工制品。

2.一种天然染料。可用作介质染料。用于羊毛和棉，用铝盐得黄色，用铬盐得橄榄黄色，用锡盐得橙色，用铁盐得橄榄绿。耐皂洗很好，耐晒中等。

Magazyme试剂盒endo-1-4-beta-Xylanase M1 Trichoderma viride E-XYTR1

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上海金畔生物科技有限公司代理Mezazyme酶试剂盒全线产品，欢迎访问Megazyme试剂盒官网了解更多信息
endo-1,4-β-Xylanase M1 (Trichoderma viride) endo-1-4-beta-Xylanase M1 Trichoderma viride E-XYTR1 endo-1-4-beta-Xylanase M1 Trichoderma viride E-XYTR1

Product code: E-XYTR1
€0.00

8,000 Units

Prices exclude VAT

  • Data Sheet
  • SDS
  • COAs
    • Content: 8,000 Units
    Shipping Temperature: Ambient
    Storage Temperature: 2-8oC
    Formulation: In 3.2 M ammonium sulphate
    Physical Form: Suspension
    Stability: > 4 years at 4oC
    Enzyme Activity: endo-1,4-β-Xylanase
    EC Number: 3.2.1.8
    CAZy Family: GH11
    CAS Number: 9025-57-4
    Synonyms: endo-1,4-beta-xylanase; 4-beta-D-xylan xylanohydrolase
    Source: Trichoderma viride
    Molecular Weight: 20,500,
    14,000
    Concentration: Supplied at ~ 1,700 U/mL
    Expression: Purified from Trichoderma viride
    Specificity: endo-hydrolysis of (1,4)-β-D-xylosidic linkages in xylans.
    Specific Activity: ~ 230 U/mg (40oC, pH 4.5 on wheat arabinoxylan)
    Unit Definition: One Unit of xylanase activity is defined as the amount of enzyme required to release one µmole of xylose reducing-sugar equivalents per minute from wheat arabinoxylan (10 mg/mL) in sodium acetate buffer (100 mM), pH 4.5 at 40oC.
    Temperature Optima: 50oC
    pH Optima: 4.5
    Application examples: Applications in carbohydrate and biofuels research and in the food and feeds and paper pulping industries.

    This product has been discontinued (read more).

    High purity endo-1,4-β-Xylanase M1 (Trichoderma viride) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

    See our full CAZymes products listing.

    Related products
    Similar Products
    E-XYLNP – endo-1,4-β-Xylanase (Neocallimastix patriciarum)

    Related Carbohydrates
    P-WAXYL – Arabinoxylan (Wheat Flour; Low Viscosity) P-WAXYM – Arabinoxylan (Wheat Flour; Medium Viscosity) P-WAXYH – Arabinoxylan (Wheat Flour; High Viscosity) P-WAXYRS – Arabinoxylan (Wheat Flour; for Reducing Sugar Assays) P-WAXYI – Arabinoxylan (Wheat Flour; Insoluble) P-XYLNBE-10G – Xylan (Beechwood) P-RAXY – Arabinoxylan (Rye Flour) O-XTR – Xylotriose O-XTE – Xylotetraose O-XPE – Xylopentaose O-XHE – Xylohexaose O-A3X – 32-α-L-Arabinofuranosyl-xylobiose (A3X) O-A2XX – 23-α-L-Arabinofuranosyl-xylotriose (A2XX) O-A23XX-30MG – 23,33-di-α-L-Arabinofuranosyl-xylotriose (A2,3XX) O-XA3XX – 33-α-L-Arabinofuranosyl-xylotetraose (XA3XX)

    Colourimetric Substrates
    K-XylX6-2V – Xylanase Assay Kit (XylX6 Method) K-XYLS – Xylanase Assay Kit (Xylazyme AX) T-XYZ-200T – Xylazyme Tablets T-XAX-200T – Xylazyme AX Tablets S-AWAXL – Azo-Wheat Arabinoxylan (Liquid) S-AWAXP – Azo-Wheat Arabinoxylan (Powder) S-AXBL – Azo-Xylan (Birchwood) (Liquid) S-AXBP – Azo-Xylan (Birchwood) (Powder)

    Associated Enzymes
    E-BXSR-1KU – β-D-Xylosidase (Selenomonas ruminantium)

    Similar Products
    E-XYLNP – endo-1,4-β-Xylanase (Neocallimastix patriciarum)
    Related Carbohydrates
    P-WAXYL – Arabinoxylan (Wheat Flour; Low Viscosity) P-WAXYM – Arabinoxylan (Wheat Flour; Medium Viscosity) P-WAXYH – Arabinoxylan (Wheat Flour; High Viscosity) P-WAXYRS – Arabinoxylan (Wheat Flour; for Reducing Sugar Assays) P-WAXYI – Arabinoxylan (Wheat Flour; Insoluble) P-XYLNBE-10G – Xylan (Beechwood) P-RAXY – Arabinoxylan (Rye Flour) O-XTR – Xylotriose O-XTE – Xylotetraose O-XPE – Xylopentaose O-XHE – Xylohexaose O-A3X – 32-α-L-Arabinofuranosyl-xylobiose (A3X) O-A2XX – 23-α-L-Arabinofuranosyl-xylotriose (A2XX) O-A23XX-30MG – 23,33-di-α-L-Arabinofuranosyl-xylotriose (A2,3XX) O-XA3XX – 33-α-L-Arabinofuranosyl-xylotetraose (XA3XX)
    Colourimetric Substrates
    K-XylX6-2V – Xylanase Assay Kit (XylX6 Method) K-XYLS – Xylanase Assay Kit (Xylazyme AX) T-XYZ-200T – Xylazyme Tablets T-XAX-200T – Xylazyme AX Tablets S-AWAXL – Azo-Wheat Arabinoxylan (Liquid) S-AWAXP – Azo-Wheat Arabinoxylan (Powder) S-AXBL – Azo-Xylan (Birchwood) (Liquid) S-AXBP – Azo-Xylan (Birchwood) (Powder)
    Associated Enzymes
    E-BXSR-1KU – β-D-Xylosidase (Selenomonas ruminantium)

    endo-1-4-beta-Xylanase M1 Trichoderma viride E-XYTR1