CN111089892A - Detection product for detecting A1 and A2 type β casein in dairy products by mass spectrometry - Google Patents
Detection product for detecting A1 and A2 type β casein in dairy products by mass spectrometry Download PDFInfo
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- CN111089892A CN111089892A CN201911420889.8A CN201911420889A CN111089892A CN 111089892 A CN111089892 A CN 111089892A CN 201911420889 A CN201911420889 A CN 201911420889A CN 111089892 A CN111089892 A CN 111089892A
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- casein
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Images
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
- G01N27/628—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas and a beam of energy, e.g. laser enhanced ionisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6803—General methods of protein analysis not limited to specific proteins or families of proteins
- G01N33/6848—Methods of protein analysis involving mass spectrometry
- G01N33/6851—Methods of protein analysis involving laser desorption ionisation mass spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2560/00—Chemical aspects of mass spectrometric analysis of biological material
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- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bioinformatics & Computational Biology (AREA)
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- Analytical Chemistry (AREA)
- Urology & Nephrology (AREA)
- Optics & Photonics (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Microbiology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biophysics (AREA)
- Cell Biology (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Name (R) | Single/double charge | m/z | Allowable offset range | |
A1 β - | Single charge | 5360 | Within +/-5 ‰ | |
A2 β - | Single charge | 5320 | Within +/-5 ‰ | |
A1 β -Casein | Double electric charge | 2680 | Within +/-5 ‰ | |
A2 β -Casein | Double electric charge | 2660 | Within +/-5 ‰ |
Type of sample | Peak to intensity ratio mean value | Peak intensity ratio SD | Peak intensity ratio CV |
Milk | 0.430 | 0.015 | 3.48% |
Claims (10)
Priority Applications (1)
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CN201911420889.8A CN111089892A (en) | 2019-12-31 | 2019-12-31 | Detection product for detecting A1 and A2 type β casein in dairy products by mass spectrometry |
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CN201911420889.8A CN111089892A (en) | 2019-12-31 | 2019-12-31 | Detection product for detecting A1 and A2 type β casein in dairy products by mass spectrometry |
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CN111089892A true CN111089892A (en) | 2020-05-01 |
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CN201911420889.8A Pending CN111089892A (en) | 2019-12-31 | 2019-12-31 | Detection product for detecting A1 and A2 type β casein in dairy products by mass spectrometry |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114716531A (en) * | 2022-05-17 | 2022-07-08 | 中国农业科学院农业质量标准与检测技术研究所 | Casein polypeptide, polypeptide antigen, antibody, test strip and application thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050272164A1 (en) * | 2004-04-14 | 2005-12-08 | Applera Corporation | Identification of modified peptides by mass spectrometry |
US20070249060A1 (en) * | 2003-03-26 | 2007-10-25 | President And Fellows Of Harvard College | Determination of Proteins and/or Other Molecules Using Mass Spectroscopy |
CN108519485A (en) * | 2018-04-10 | 2018-09-11 | 上海出入境检验检疫局动植物与食品检验检疫技术中心 | A kind of Mass Spectrometry detection method of A1/A2 beta-caseins |
CN108709939A (en) * | 2018-05-21 | 2018-10-26 | 杭州璞湃科技有限公司 | A kind of feature peptide and method for detecting A2 beta-casein contents in cow's milk product |
CN108956837A (en) * | 2018-05-21 | 2018-12-07 | 浙江清华长三角研究院 | It is a kind of for detecting the feature peptide and method of A1 beta-casein content in cow's milk product |
WO2019104390A1 (en) * | 2017-12-01 | 2019-06-06 | Freedom Foods Group IP Pty Limited | Milk substitute compositions |
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2019
- 2019-12-31 CN CN201911420889.8A patent/CN111089892A/en active Pending
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