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.
S2004
Starch from potato
Soluble
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500 G
112,00 €
1 KG
207,00 €
About This Item
Fórmula lineal:
(C6H10O5)n
Número de CAS:
Número CE:
Número MDL:
Código UNSPSC:
12352201
ID de la sustancia en PubChem:
NACRES:
NA.21
Productos recomendados
origen biológico
potato
Nivel de calidad
Formulario
powder
color
white
intervalo de pH útil
5.0-7.5 (2% in water)
temp. de almacenamiento
room temp
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Descripción general
Starch is a carbohydrate reserve in plants and a major source of energy for humans. In plants, starch is found in chloroplasts of leaf and in the amyloplasts of tuber and seeds.[1][2] Structurally, starch consists of two major polysaccharides, namely amylose and amylopectin. Both consists of chains of -(1,4)-linked D-glucose residues interconnected through -(1,6)-glycosidic linkages.[2] Potato starch is superior to others, functionally, because of its low lipid level.[1] Nutritional composition of starch comprises of rapidly digestible starch, slowly digestible starch, and resistant starch (RS). Amylases are the starch degrading enzymes.[3] Starch digestibility affects the blood glucose levels and is controlled by factors like carbohydrate contents of foods, nutritional composition of starch and cooking foods.[4] Inhibition of pancreatic amylase is of therapeutic importance for delaying starch digestion, to prevent postprandial hyperglycemia.[4][5] Food industries use starch as thickening agent.[6]
Aplicación
Otras notas
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
nwg
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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Certificados de análisis (COA)
Lot/Batch Number
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Journal of Experimental Botany, 49(320), 481-502 (1998)
Protocolos
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.
Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.
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Is S2004 soluble starch native or modified?
1 respuesta-
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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.pdf¿Le ha resultado útil?
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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?
1 respuesta-
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?
1 respuesta-
We have not found S2004 to be suitable for this application.
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