GB/T 24401-2009Alpha-amylase preparation (English PDF)
α－淀粉酶制剂
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 30, 2009
Implementation date
March 1, 2010
Scope
GB/T 24401-2009 is the English-translated version of α－淀粉酶制剂.
GB/T 24401-2009 is the Chinese standard "Alpha-amylase preparation". Its scope clause reads: This standard specifies the terms and definitions alpha- amylase preparation, product classification, requirements, test methods, inspection rules and signs, packaging, transportation Transport, storage requirements.
This standard applies to starch (or carbohydrate) as raw materials, fermentation, purification of the resulting alpha- amylase enzyme production, testing and marketing Sale.
Mainly for the food industry, textile industry and so on. alpha- amylase enzymes from other sources may refer to the relevant categories of use, used as feed additives alpha- amylase preparation agent can refer to a class A product execution. Its clauses include terms and definitions; products.
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Document preview — GB/T 24401-2009
National Standard of the People's Republic of China
- ICS
- 07.100.30
- Classification
- X 60
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Products
1 Scope
This standard specifies the terms and definitions alpha- amylase preparation, product classification, requirements, test methods, inspection rules and signs, packaging, transportation
Transport, storage requirements.
This standard applies to starch (or carbohydrate) as raw materials, fermentation, purification of the resulting alpha- amylase enzyme production, testing and marketing
Sale. Mainly for the food industry, textile industry and so on. alpha- amylase enzymes from other sources may refer to the relevant categories of use, used as feed additives
alpha- amylase preparation agent can refer to a class A product execution.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 191 Packaging - Pictorial signs
Preparation of GB/T 601 chemical reagent standard titration solution
Laboratory use specifications and test methods GB/T 6682 Analysis
GB 8275 Food additive alpha- amylase enzyme
QB/T 1803-1993 Test method for general industrial enzymes
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
The hydrolysis of starch molecular chain alpha-1,4- glucoside bond, starch chains become cut off a small amount of short chain dextrin and maltose and glucose, so
Starch viscosity decreased rapidly enzyme.
3.2
Under 1g solid enzyme powder (or 1mL liquid enzyme), at 60 °C, pH value 6.0 conditions, 1h 1g soluble starch liquefaction, is an enzyme
Activity unit, "u/g (u/mL)" represented.
3.3
Under 1g solid enzyme powder (or 1mL liquid enzyme), at 70 °C, pH value 6.0 conditions, 1min 1mg soluble starch liquefaction, i.e.
A unit of enzyme activity, with "u/g (u/mL)" indicates.
4 Products
4.1 Applications by product
A category. food/feed industrial enzyme.
Category B. other industrial enzymes.
4.2 Temperature by product
Temperature and high temperature alpha- amylase enzyme alpha- amylase preparation.
QB/T 5189-2017 | GB 31640-2016 | GB/T 18356-2007 | GB/T 23527.4-2025 | GB/T 23527.3-2025 | GB/T 23527.2-2025 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.
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