Methods for purifying proteins from liquids

Methods for purifying proteins from liquids, Total:168 items.

The international standard classification for "Methods for purifying proteins from liquids" includes: food products in general , Animal feeding stuffs , Milk and processed milk products , Textiles in general , Latex and raw rubber , Fruits. Vegetables , Edible oils and fats. Oilseeds , General methods of tests and analysis for food products , Man-made fibres , Biology. Botany. Zoology , Protection against crime .

The Chinese standard classification for "Methods for purifying proteins from liquids" includes: Food sanitation , Livestock and poultry feed and additive , Milk and dairy products , Basic standards and general methods , Silk and silk fabric in general , Cereal crop and forage crop in general , Medical and foodstuff rubber products , Melon, fruit and vegetable planting and product , Oil crop and product , Other cash crops , Basic standards and general methods , Chemical fibre in general , Basic Subject in general , Crime judging technology , Environmental Condition and General Test Method .

Professional Standard - Chemical Industry

HG/T 3645-1999 Method for the determination of aqueous extractable protein in natural rubber gloves using the Lowry method

Professional Standard - Agriculture

NY/T 449-2001 Identification purity of maize variety using salting in protein eletrohporesis
GB/T 22260-2023 Determination of anabolic steroids in feeds—Liquid chromatography-tandem mass spectrometry
GB/T 5009.5-1985 Method for determination of protein in foods
NY/T 1678-2008 Determination of protein in milk and dairy products Biuret spectrophotometry method
SN/T 5071-2018 Determination of 19 kinds of nonprotein nitrogen compounds infoodstuffs of origin for export - LC-MS/MS method
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products

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

GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 14489.2-1993 Method for determination of crude protein in oilseed
GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
GB/T 21033-2007 Determination of immunoglobulin in feeds—High-performance liquid chromatography
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB/T 5009.5-2003 Determination of protein in foods
GB/T 14771-1993 Method for determination of protein content in foods
GB/T 21870-2008 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
GB/T 44214-2024 Test method for non-protein content in silk

未注明发布机构

PD ISO/TS 7833:2024 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion
DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
DIN 58931 E:2021-02 Haematology - Determination of haemoglobin concentration in blood - Reference method
DIN EN ISO 8968-4 E:2013-09 Determination of nitrogen content of milk and milk products Part 4: Determination of protein and non-protein nitrogen content and calculation of pure protein content (Reference Method) (Draft)
DIN 58931 E:2009-03 Haematology - Determination of haemoglobin concentration in blood - Reference method

Jilin Provincial Standard of the People's Republic of China

DB22/T 294-2020 Method for identification of adulteration of crude protein in corn gluten meal
DB22/T 3646-2024 Identification of Changbai Mountain forest frog oil High-performance liquid chromatography protein characteristic mapping method

Professional Standard - Textile

FZ/T 50018-2013 Determination of the protein content of the protein viscose fiber

Agricultural Standard of the People's Republic of China

农业部783号公告-6-2006 Determination of iodinated casein in feeds.Liquid chromatography/Mass spectrometry
农业部1068号公告-3-2008 Determination of ten kinds of anabolic androgenic steroids in feeds.High performance liquid chromatography tandem mass spectrometry

Taiwan Provincial Standard of the People's Republic of China

CNS 5035-1986 Method of Test for Crude Protein in Food

Hebei Provincial Standard of the People's Republic of China

DB13/T 5127.14-2019 Determination of Toxic and Hazardous Substances in Extracts of Implantable Medical Devices - Visible-UV Spectrophotometry for Protein Migration
DB13/T 1098-2009 Determination of protein in feed
DB13/T 221-1994 Method for testing the purity of corn hybrids, inbred lines, and wheat seeds - protein electrophoresis

Group Standards of the People's Republic of China

T/TDSTIA 007-2019 Determination of β-lactoglobulin in milk and milk products by liquid chromatography
T/CSBM 0040-2023 Organ Preservation Solution containing hemoglobin-based oxygen carrier
T/CSIQ 77001-2020 Determination of α-Lactalbumin contents in dairy products— HPLC method
T/TDSTIA 026-2022 Determination of α-lactalbumin and β-lactoglobulin in infant formula milk powder—Gel permeation chromatography
T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
T/HBIQA 0005-2024 Determination of five rapamycin target protein inhibitors in human blood by high performance liquid chromatography-tandem mass spectrometry
T/CAB 0062-2020 Identification of type Ⅲ collagen LC-MS/MS method
T/BPCT 001-2023 Determination of A2 β-casein content in cow milk and cow milk products by high performance liquid chromatography-mass spectrometry
T/TDSTIA 006-2019 Determination of lactoferrin in milk and dairy products — Liquid chromatography method
T/TDSTIA 002-2021 Determination of α-lactalbumin in milk and milk products by high performance liquid chromatography
T/CCAA 70-2023 Determination of lactoferrin in bovine infant formula by liquid chromatography tandem mass spectrometry

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 1686-2016 Determination method of metallothionein in plants

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 38163-2019 Determination of allergenic protein—LC-MS/MS method

Professional Standard - Light Industry

QB/T 4363-2012 Determination of Immunoglobulin Egg Yolk (IgY) Activity in Toothpastes

Professional Standard - Commodity Inspection

SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method
SN/T 0803.9-1999 Oil bearing materials for import and export—Method for the determination of crude protein

Professional Standard - Public Safety Standards

GA/T 819-2009 Analytical method of acid dyes on the protein fibers

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 34800-2017 Detection method of activity and impurity of proteinase K

AT-ON

ONORM DIN 10454-1993 Determination of protein content of caseins and caseinates - Reference method
ONORM DIN 10453-1993 Determination of water content of caseins and caseinates - Reference method
ONORM DIN 10456-1993 Determination of pH of caseins and caseinates - Reference method

British Standards Institution (BSI)

BS EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
BS EN ISO 14244:2016 Oilseed meals. Determination of soluble proteins in potassium hydroxide solution
BS EN ISO 21415-4:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by a rapid drying method
BS EN ISO 21415-3:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by an oven drying method
BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS ISO 14244:2014 Oilseed meals. Determination of soluble proteins in potassium hydroxide solution

CZ-CSN

CSN 57 0111 Cast.10-1979 Testing methods for casein. Determination of purity
CSN 57 0111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 570111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 57 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 57 0111-2-2002 Testing methods for casein and caseinates - Methods of samphng of Chemical analysis
CSN 57 0111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 57 0111-12-2002 Testing methods for casein and caseinates - Determination of pH
CSN 57 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture

International Organization for Standardization (ISO)

ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
ISO 14244:2014 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution
ISO/DTS 7833:2023 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion
ISO/TS 7833:2024 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion
ISO 8968-4:2016 | IDF 20-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (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)

Japanese Industrial Standards Committee (JISC)

JIS K 0602:2000 Proteins -- Serum albumin -- Methods for quantitative analysis
JIS K 0605:2000 Proteins -- Trypsin -- Methods for quantitative analysis
JIS K 0606:2000 Proteins -- Transferrin -- Methods for quantitative analysis
JIS K 0603:2000 Proteins -- Immunoglobulin -- Methods for quantitative analysis
JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis

IN-BIS

IS 7219-1973 Methods for determination of protein in food and feed
IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (reference method)
IS 7481-1974 How to measure protein efficiency ratio (PER)
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
IS 11964-1987 Method for determination of free acidity in casein (reference method)
IS 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers

RU-GOST R

GOST R 57475-2017 Dried egg protein after extraction lysozyme. Specifications
GOST 25179-1990 Milk. Methods for determination of protein
GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
GOST 25179-2014 Milk and milk products. Method for determination of protein
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 25011-1981 Meat and meat products. Methods of protein determination
GOST 25011-2017 Meat and meat products. Protein determination methods
GOST 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents

German Institute for Standardization

DIN 58931:2021-09 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 58931:2021 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
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 58931:1995 Haematology - Determination of haemoglobin concentration in blood - Reference method
DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
DIN EN ISO 14244:2016-10 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014); German version EN ISO 14244:2016
DIN EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN 58931:2010 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method

American Society for Testing and Materials (ASTM)

ASTM D5712-15(2020) Standard Test Method for Analysis of Aqueous Extractable Protein in Latex, Natural Rubber, and Elastomeric Products Using the Modified Lowry Method
ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM D8238-18 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
ASTM D5712-10 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D5712-99e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D5712-05e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D5712-99 Standard Test Method for the Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D8238-24 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
ASTM D6188-17 Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall

KR-KS

KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H 1204-2022 Testing method for crude proteins content

AR-IRAM

IRAM 15 707-1963 How to measure plant protein in food

SCC

AS 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)
AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
DANSK DS/EN ISO 8968-4:2016 Milk and milk products – Determination of nitrogen content – Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
NS-EN ISO 8968-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
AENOR UNE-EN ISO 14244:2017 Oilseed flours. Determination of soluble proteins in potassium hydroxide solution. (ISO 14244:2014).
BS PD ISO/TS 7833:2024 Nanotechnologies. Extraction method of nanomaterials from lung tissue by proteinase K digestion
AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
NS-EN ISO 14244:2016 Oilseed meals — Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)
BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
DANSK DS/EN ISO 14244:2016 Oilseed meals – Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)
AENOR UNE-EN ISO 8968-4:2016 Milk and dairy products. Determination of nitrogen content. Part 4: Determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method). (ISO 8968-4:2016)

Korean Agency for Technology and Standards (KATS)

KS H ISO 5549:2006 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 5549-2006(2016) Caseins and caseinates－Determination of protein content(Reference method)
KS H 1204-2021 Testing method for crude proteins content
KS H 1204-2012 Testing method for crude proteins content
KS H 1204-2001 Testing method for crude proteins content
KS H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
KS J 4201-2008 Methods for quantitative analysis of serum albumin

GOSTR

GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein

AENOR

UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN ISO 14244:2017 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)

Lithuanian Standards Office

LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)

Standard Association of Australia （SAA）

AS ISO 8968.4:2021 Milk and milk products — Determination of nitrogen content, Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

Association Francaise de Normalisation

NF V03-950*NF EN ISO 14244:2016 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution
NF V04-221-4*NF EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
NF V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF EN ISO 14244:2016 Oilseed meals - Determination of soluble protein content in potassium hydroxide solution
NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
NF V03-950:2014 Oilseed meals - Determination of soluble protein in potassium hydroxide solution
NF EN ISO 8968-4:2016 Milk and dairy products - Determination of nitrogen content - Part 4: determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method)

CEN - European Committee for Standardization

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content

ES-UNE

UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
UNE-EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

European Committee for Standardization (CEN)

EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
EN ISO 14244:2016 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution

PL-PKN

PN C04288-14-1987 Technical fats Methods of testing Determination of protein content

GSO

BH GSO ISO 8968-4:2022 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
GSO ISO 8968-4:2021 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

VN-TCVN

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content

Others: