Preparation method of casein solution for measuring protease activity

Preparation method of casein solution for measuring protease activity, Total:235 items.

The international standard classification for "Preparation method of casein solution for measuring protease activity" includes: Spices and condiments. Food additives , Biology. Botany. Zoology , Chemical reagents , Sugar and sugar products , Animal feeding stuffs , Oilseeds , Laboratory medicine .

The Chinese standard classification for "Preparation method of casein solution for measuring protease activity" includes: Flavoring materials , Environmental Condition and General Test Method , Biochemical reagent and clinical analysis reagent , Sugar refining , Livestock and poultry feed and additive , Grease and oil processing and products , Medical laboratory equipment .

Professional Standard - Business

SB/T 10317-1999 Measurement of proteinase activity

未注明发布机构

DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
DIN EN ISO 23319 E:2020-10 Gravimetric method for determination of fat content in cheese and processed cheese products, casein and caseinate (draft)
DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
DIN ISO 5544 E:2020-06 Caseins - Determination of "fixed ash" (Reference method)

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

GB/T 35534-2017 Examination methods of pancreatic digest of casein
GB/T 33410-2016 Determination of the activity of protease K in biochemical reagents
GB/T 34800-2017 Detection method of activity and impurity of proteinase K

中华全国供销合作总社

GH/T 1315-2020 Determination of casein in honey—Enzyme-linked immunosorbent assay method

Group Standards of the People's Republic of China

T/NAIA 0279-2024 Determination of protease activity in soil

Jilin Provincial Standard of the People's Republic of China

DB22/T 1819-2013 Spectrophotometric method for the determination of acid protease activity in enzyme preparations for feed

Hebei Provincial Standard of the People's Republic of China

DB13/T 1091-2009 Determination of acid protease activity in enzyme preparations for feed - spectrophotometric method

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 21498-2008 Determination of trypsin inhibitor activity of soya products
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method

国家药品监督管理局

YY/T 1578-2018 Glycated albumin assay kit(enzymatic method)

Professional Standard - Agriculture

NY/T 4362-2023 Feed additives-Determination of keratinase activity-Spectrophotometric method

British Standards Institution (BSI)

BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
BS ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
BS DD ISO/TS 27105:2010 Milk and milk products - Determination of hen's egg white lysozyme by HPLC
BS 6248-11:1987 Caseins and caseinates. Method for determination of nitrate and nitrite contents
BS ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
BS ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (reference method)
BS ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
BS EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates. Determination of fat content. Gravimetric method
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
20/30376375 DC BS ISO 23319. Cheese and processed cheese products, caseins and caseinates. Determination of fat content. Gravimetric method
BS ISO 5547:2008 Caseins - Determination of free acidity (Reference method)

RU-GOST R

GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST R 53974-2010 Enzyme preparations for food industry. Method for determination of proteolitic activity
GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
GOST R 51465-1999 Caseins and caseinates. Determination of scorched particles content
GOST R 51468-1999 Caseins. Method for determination of free acidity
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST 33427-2015 Feeds. Determination of trypsin inhibitor activity of soya products

German Institute for Standardization

DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN 10464:1994-08 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN ISO 5545:2020 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN ISO 5546:2020 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
DIN ISO 5550:2020 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN EN ISO 23319:2023-01 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022); German version EN ISO 23319:2022
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN 58924:2022-05 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN EN ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
DIN 10472:1996-06 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
DIN ISO 5544:2020-12 Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
DIN 10450:1983-03 Determination of free acidity of caseins; reference method

Association Francaise de Normalisation

NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)
NF V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
NF V04-388*NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method.
NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method
NF V04-384:1985 Rennet caseins and caseinates. Determination of ash (reference method).
NF V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF V04-558*NF EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method
NF V04-389:1985 Caseins and caseinates. Determination of scorched particles content.
NF V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
NF V04-382:2008 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method).
NF EN ISO 23319:2022 Cheeses and processed cheeses, caseins and caseinates - Determination of fat content - Gravimetric method
NF ISO 5544:2008 Caseins - Determination of "fixed ashes" (Reference method)
NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-391*NF ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
NF V04-363:1985 Dried milk - Determination of the quantity of instant powder milk in animal feeding stuffs - Method of enzymatic coagulation of paracasein
NF V04-386:1985 Caseins. Determination of free acidity (reference method).
NF V04-391:1985 Caseins. Determination of "fixes ash" (reference method).
NF V04-386*NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-385:1985 Caseins and caseinates. Determination of pH (reference method).

IN-BIS

IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (reference method)
IS 11888-1987 Method for determination of charred particle content in casein and caseinates
IS 11963-1987 Photometric method for determination of lactose content in casein and caseinate

KR-KS

KS H ISO 5545-2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 5546-2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5548-2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5739-2021 Caseins and caseinates — Determination of scorched particles content
KS H ISO 5543-2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS H ISO 5544-2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5547-2021 Caseins — Determination of free acidity(Reference method)

Korean Agency for Technology and Standards (KATS)

KS H ISO 5545-2006(2016) Rennet caseins and caseinates－Determination of ash(Reference method)
KS H ISO 5545:2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5549:2006 Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549-2006(2016) Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5550-2007(2021) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5739:2021 Caseins and caseinates — Determination of scorched particles content
KS H ISO 5550:2007 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5548:2006 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5739-2006(2016) Caseins and caseinates－Determination of scorched particles content
KS H ISO 5550-2021 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5550-2007(2012) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5548:2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5545:2006 Rennet caseins and caseinates－Determination of ash(Reference method)
KS H ISO 5543-2006(2016) Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5543:2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS H ISO 5543:2006 Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5739:2006 Caseins and caseinates－Determination of scorched particles content
KS H ISO 5544:2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5544:2006 Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5544-2006(2016) Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 8195-2006 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H ISO 5547:2021 Caseins — Determination of free acidity(Reference method)

International Organization for Standardization (ISO)

ISO 5545:2008 | IDF 90:2008 Rennet caseins and caseinates — Determination of ash (Reference method)
ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
ISO 5546:2010 | IDF 115:2010 Caseins and caseinates — Determination of pH (Reference method)
ISO 5546:2010|IDF 115:2010 Determination of pH value of casein and caseinate (standard method)
ISO 5546:1979 Caseins and caseinates; Determination of pH (Reference method)
ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
ISO 5550:2006|IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric method
ISO 5548:2004 | IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
ISO 5548:2004|IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
ISO 5550:1978 Caseins and caseinates; Determination of water content (Reference method)
ISO 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric method
ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
ISO 5545:2008|IDF 90:2008 Determination of abomasal casein and caseinate ash (reference method)
ISO 23319:2022 | IDF 250 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5543:2004 | IDF 127:2004 Caseins and caseinates — Determination of fat content — Gravimetric method (Reference method)
ISO 5739:1983 Caseins and caseinates; Determination of scorched particles content
ISO 5545:1978 Rennet caseins and caseinates; Determination of ash (Reference method)
ISO 23319:2022 | IDF 250:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5543:2004|IDF 127:2004 Gravimetric method for determination of fat content in casein and caseinate (reference method)
ISO 5543:1986 Caseins and caseinates; Determination of fat content; Gravimetric method (Reference method)
ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method)
ISO 5739:2003 | IDF 107:2003 Caseins and caseinates — Determination of contents of scorched particles and of extraneous matter
ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
ISO 5739:2003|IDF 107:2003 Determination of casein and caseinate coke particles and foreign matter content
ISO 5547:2008 | IDF 91:2008 Caseins — Determination of free acidity (Reference method)
ISO 5544:1978 Caseins; Determination of " fixed ash " (Reference method)
ISO 5547:1978 Caseins; Determination of free acidity (Reference method)
ISO 5544:2008 | IDF 89:2008 Caseins — Determination of " fixed ash " (Reference method)
ISO 5544:2008|IDF 89:2008 Determination of "fixed ash" of casein (reference method)
ISO 8195:1987 Caseins and caseinates; Determination of nitrate and nitrite contents; Method by cadmium reduction and spectrometry
ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
ISO 5544:2008 Caseins - Determination of " fixed ash " (Reference method)
ISO 5547:2008|IDF 91:2008 Caseins — Determination of free acidity (Reference method)

AT-ON

ONORM DIN 10454-1993 Determination of protein content of caseins and caseinates - Reference method
ONORM DIN 10456-1993 Determination of pH of caseins and caseinates - Reference method
ONORM DIN 10453-1993 Determination of water content of caseins and caseinates - Reference method
ONORM S 1812-1982 Testing ojtextiles; quantitative analysis oj binary mixtures; casein fihres with other jibres; trypsin method

CZ-CSN

CSN 57 0111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 57 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture
CSN 57 0111-12-2002 Testing methods for casein and caseinates - Determination of pH
CSN 57 0111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 57 0111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity
CSN 57 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 570111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 57 0111 Cast.9-1979 Testing methods for casein. Determination of solubility index
CSN 57 0111-2-2002 Testing methods for casein and caseinates - Methods of samphng of Chemical analysis
CSN 57 0111 Cast.6-1985 Testing methods for casein. Determination of lactose
CSN 57 0111 Cast.10-1979 Testing methods for casein. Determination of purity
CSN 57 0111 Cast.11-1979 Testing methods for casein. Determination of colour
CSN 57 0111 Cast.4-1979 Testing methods for asein. Determination f fat content
CSN 570111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 570111-3-2002 Testing methods for casein and caseinates - Determination of moisture
CSN 570111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity

Lithuanian Standards Office

LST ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008, identical)
LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)
LST ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method) ( ISO 5546:2010, identical)
LST ISO 5543:2004 Caseins and caseinates. Determination of fat content. Gravimetric method (Reference method) (idt ISO 5543:2004)
LST ISO 5548:2004 Caseins and caseinates. Determination of lactose content. Photometric method (idt ISO 5548:2004)
LST ISO 5739:2003 Caseins and caseinates. Determination of contents of scorched particles and of extraneous matter (idt ISO 5739:2003)

SCC

BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
BS 1416:1948 Methods for the sampling and analysis of rennet casein
BS 1416:1962 Methods for the sampling and analysis of rennet casein
BS 1416:1953 Methods for the sampling and analysis of rennet casein
DANSK DS/ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates – Determination of fat content – Gravimetric method
NS-EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
DIN ISO 5545 E:2020 Draft Document - Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008); Text in German and English
DANSK DS/EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates – Determination of fat content – Gravimetric method (ISO 23319:2022)
DIN 10470 E:2010 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DANSK DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
BS 3985:1978 Specification for cyanmethaemoglobin (haemiglobincyanide) solution for photometric haemoglobinometry
AS 1095.2.6:1978 Microbiological methods for the dairy industry, Part 2.6: Methods for the examination of specific dairy products - Caseins, caseinates, and coprecipitates

GSO

OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
BH GSO ISO 5546:2016 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
OS GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
OS GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
BH GSO ISO 5543:2016 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
BH GSO ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
GSO ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
GSO ISO 5545:2015 Rennet caseins and caseinates -- Determination of ash (Reference method)
GSO ISO 5544:2015 Caseins -- Determination of " fixed ash " (Reference method)
GSO ISO 5739:2015 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
BH GSO ISO 5739:2016 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
GSO ISO 14902:2014 Animal feeding stuffs -- Determination of trypsin inhibitor activity of soya products

International Dairy Federation (IDF)

IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)
IDF/RM 216-2009 Milk and milk products - Determination of hen's egg white lysozyme by HPLC
IDF 89-2008 Caseins - Determination of "fixed ash" (Reference method)
IDF 91-2008 Caseins - Determination of free acidity (Reference method)
IDF 107-2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter

Japanese Industrial Standards Committee (JISC)

JIS K 0605:2000 Proteins -- Trypsin -- Methods for quantitative analysis
JIS K 0605:1992 Methods for quantitative analysis of trypsin

GOSTR

GOST 34430-2018 Enzyme preparations for food industry. Method for the determination of proteolitic activity

European Committee for Standardization (CEN)

EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)

RO-ASRO

SR 5546-1997 Caseins and caseinates - Determination of pH (Reference method)
SR ISO 5545:1996 Rennet caseins and caseinates - Determination of ash (Reference method)
STAS SR 13424-1999 Enzyme preparations for food industry Papain - Enzyme activity determination

ES-UNE

UNE-EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)

Danish Standards Foundation

DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
DS/EN ISO 14902:2002 Animal feeding stuffs - Determination of trypsin inhibitor activity of soya products

American Society for Testing and Materials (ASTM)

ASTM D3048-89(1995)e1 Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2016) Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2009) Standard Test Method of Assay for Alkaline Protease

TN-INNORPI

NT 14.51-1983 Determination of casein content in milk

AENOR

UNE 34827:1983 DETERMINATION OF THE CASEIN CONTENT OF MILK.

Others: