This starch product is purified from Potato. The product has not been intentionally modified. Any modifications that may have occurred during the extraction and purification process have not been investigated.
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一般說明
淀粉是植物中的碳水化合物储备，也是人类能量的主要来源。在植物中，淀粉存在于叶片的叶绿体、块茎和种子的淀粉质体中。[1][2]在结构上，淀粉由两种主要的多糖组成，即直链淀粉和支链淀粉。两者均由-(1,4)-连接 D-葡萄糖残基通过-(1,6)-糖苷键相互连接的链组成。[2]马铃薯淀粉在功能上优于其他淀粉，因为它的脂类级别低。[1]淀粉的营养成分包括快速消化淀粉、慢速消化淀粉和抗性淀粉 (RS)。淀粉酶是淀粉降解酶。[3]淀粉消化率受食物中碳水化合物含量、淀粉营养成分和烹调食物等因素的影响。[4]抑制胰淀粉酶对延缓淀粉消化，防止餐后高血糖有重要的治疗作用。[4][5] 食品工业用淀粉作增稠剂。[6]
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
nwg
閃點（°F）
Not applicable
閃點（°C）
Not applicable
從最近期的版本中選擇一個：
分析證明 (COA)
Lot/Batch Number
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為了測量果膠酶的活性，使用滴定停止反應試驗法。在 25 °C、pH 值為 4.0 的條件下，一個單位的果膠酶每小時可從聚半乳糖醛酸中釋放出 1 μmol 的半乳糖醛酸。
To measure pectinase activity, a titrimetric stop reaction assay is used. One unit of pectinase will liberate 1 μmol of galacturonic acid from poly-galacturonic acid per hour at pH 4.0 at 25 °C.
This procedure may be used for the determination of Amyloglucosidase activity using starch as the substrate.
本程序可用於以澱粉為底物的淀粉葡萄糖苷酶活性的測定。
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Is S2004 soluble starch native or modified?
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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?
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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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Hello, what is the amylose and amylopectin ratio for the s2004 "Starch from Potato"?
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The ratio of amylose and amylopectin is not determined for this product.
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What is the apparent amylose content in soluble potato starch?
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The amylose content of this product is not determined.
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What concentration of Product S2004, soluble starch, would I use for a 50% inhibition with α mannoside?
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50% inhibition is observed at 10 - 25 ng/ml per Australian Journal of Chemistry v. 32, 2257 (1979).
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Is Product S2004, soluble starch, suitable for alpha-Amylase detection?
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We have not found S2004 to be suitable for this application.
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