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Inter-laboratory Validation of an HPLC–MS/MS Method for the Detection of Microbial Transglutaminase in Meat and Meat Products. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02289-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractMicrobial transglutaminase (TG) is an enzyme isolated on an industrial scale from Streptomyces mobaraensis. Technical TG, a formulated powder, is primarily used to restructure meat in the meat-processing industry, typically at a 1% concentration and is often referred to as “meat glue.” In the European Union, meat restructured with TG requires the indication “formed meat” on the label according to Regulation (EU) No 1169/2011. In order to detect food fraud like the undeclared TG usage in meat and meat products, a qualitative mass spectrometric method using specific tryptic marker peptides has been published in 2017. Here the successful inter-laboratory validation and first-time standardization of a proteomics method for food control is described, which was subsequently included into the Official Collection of Analysis Methods according to the German Food and Feed Code (§ 64 LFGB). Thirteen laboratories from governmental, academic, and private institutions participated in the study, whereas four laboratories did not meet the minimal quality criteria and therefore their results had to be excluded. Three different test materials containing between 0.2 and 2% technical TG as well as blank samples were produced and tested. The laboratories used triple-quadrupole mass spectrometers from several vendors as well as quadrupole time-of-flight instruments. The detection of TG was considered to be positive, if three mass transitions for the marker peptides VTPPAEPLDR (TG-1) and SPFYSALR (TG-2), each, showed a signal-to-noise ratio of at least 3. The level of detection LOD95% for the median laboratory with intermediate performance was 0.31%, the false-positive rate was 0% and the false-negative rate was 2.1%.
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Hazar FY, Kaban G, Kaya M. The effects of transglutaminase on the qualitative properties of different pastırma types. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Akbari M, Razavi SH, Kieliszek M. Recent advances in microbial transglutaminase biosynthesis and its application in the food industry. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Erdem N, Babaoğlu AS, Poçan HB, Karakaya M. The effect of transglutaminase on some quality properties of beef, chicken, and turkey meatballs. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14815] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nuran Erdem
- Department of Food Processing Güzelyurt Vocational School Aksaray University Aksaray Turkey
| | - Ali Samet Babaoğlu
- Department of Food Engineering, Agriculture Faculty Selçuk University Konya Turkey
| | - Hatice Berna Poçan
- Department of Food Processing Çumra Vocational School Selçuk University Konya Turkey
| | - Mustafa Karakaya
- Department of Food Engineering, Agriculture Faculty Selçuk University Konya Turkey
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Gallego M, Mora L, Toldrá F. Perspectives in the Use of Peptidomics in Ham. Proteomics 2018; 18:e1700422. [DOI: 10.1002/pmic.201700422] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/28/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
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