This standard specifies the terms and definitions, technical requirements, test method, inspection rules, marking, packaging, transportation and storage requirements of thermostable α-amylase preparation.
This standard is applicable to the thermostable α-amylase preparation produced by bacillus licheniformis (or other dissociants) via deep fermentation culture and purification.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions listed are valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB 601-1988 Chemical reagent - Preparations of standard volumetric solutions
GB 4789-1994 Microbiological examination of food hygiene
GB/T 5009.11-1996 Method for determination of total arsenic in food
GB/T 5009.12-1996 Method for determination of lead in food
GB 8451-1987 Method for limit test of heavy metals in food additives
QB/T 1803-1993 General methods of determination for industrial enzymes
QB/T 1804-1993 General principles of inspection and mark, packing, transport and storage for industrial enzymes
3 Terms and definitions
3.1 thermostable α-amylase
α-amylase preparation with higher thermostability, produced by selected bacillus licheniformis via fermentation and purification
3.2 enzyme active unit
amount of enzyme required to liquefy 1mg of soluble starch into dextrin in 1min under the condition of 60℃ and pH=6.0, i.e. one enzyme active unit, expressed in u/mL (or u/g)
4 Technical requirements
4.1 Appearance requirements
Liquid dosage form: brown liquid with the characteristic odor of the enzyme, allowing a small amount of condensation.
1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Test method 6 Inspection rules 7 Marking, packaging, transportation and storage Annex A (Normative)
Thermostable α-amylase preparation
1 Scope
This standard specifies the terms and definitions, technical requirements, test method, inspection rules, marking, packaging, transportation and storage requirements of thermostable α-amylase preparation.
This standard is applicable to the thermostable α-amylase preparation produced by bacillus licheniformis (or other dissociants) via deep fermentation culture and purification.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions listed are valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB 601-1988 Chemical reagent - Preparations of standard volumetric solutions
GB 4789-1994 Microbiological examination of food hygiene
GB/T 5009.11-1996 Method for determination of total arsenic in food
GB/T 5009.12-1996 Method for determination of lead in food
GB 8451-1987 Method for limit test of heavy metals in food additives
QB/T 1803-1993 General methods of determination for industrial enzymes
QB/T 1804-1993 General principles of inspection and mark, packing, transport and storage for industrial enzymes
3 Terms and definitions
3.1 thermostable α-amylase
α-amylase preparation with higher thermostability, produced by selected bacillus licheniformis via fermentation and purification
3.2 enzyme active unit
amount of enzyme required to liquefy 1mg of soluble starch into dextrin in 1min under the condition of 60℃ and pH=6.0, i.e. one enzyme active unit, expressed in u/mL (or u/g)
4 Technical requirements
4.1 Appearance requirements
Liquid dosage form: brown liquid with the characteristic odor of the enzyme, allowing a small amount of condensation.
Contents of QB/T 2306-1997
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
7 Marking, packaging, transportation and storage
Annex A (Normative)
