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Sumina EG, Shtykov SN, Reshetnikova IS, Yurasov NA, Uglanova VZ. Micellar Thin-Layer Chromatography and Preconcentration of L-Carnitine with Magnetite Nanoparticles. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822080160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Park JM, Koh JH, Kim JM. Determination of L-Carnitine in Infant Powdered Milk Samples after Derivatization. Food Sci Anim Resour 2021; 41:731-738. [PMID: 34291219 PMCID: PMC8277179 DOI: 10.5851/kosfa.2021.e23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 11/22/2022] Open
Abstract
Herein, a novel analytical method using a high-performance liquid
chromatography-fluorescence detector (HPLC/FLD) is developed for rapidly
measuring an L-carnitine ester derivative in infant powdered milk. In this
study, solid-phase extraction cartridges filled with derivatized methanol and
distilled water were used to effectively separate L-carnitine. Protein
precipitation pretreatment was carried out to remove the protein and recover the
analyte extract with a high recovery (97.16%–106.56%),
following which carnitine in the formula was derivatized to its ester form.
Precolumn derivation with 1-aminoanthracene (1AA) was carried out in a phosphate
buffer using 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC)
as the catalyst. Method validation was performed following the AOAC guidelines.
The calibration curves were linear in the L-carnitine concentration range of
0.1–2.5 mg/L. The lower limit of quantitation and limit of detection of
L-carnitine were 0.076 and 0.024 mg/L, respectively. The intra- and interday
precision and recovery results were within the allowable limits. The results
showed that our method helped reduce the sample preparation time. It also
afforded higher resolution and better reproducibility than those obtained by
traditional methods. Our method is suitable for detecting the quantity of
L-carnitine in infant powdered milk containing a large amount of protein or
starch.
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Affiliation(s)
- Jung Min Park
- Department of Food Marketing and Safety, Konkuk University, Seoul 05029, Korea
| | - Jong Ho Koh
- Department of Bio-Food Analysis, Bio-Campus, Korea Polytechnic College, Nonsan 32940, Korea
| | - Jin Man Kim
- Department of Food Marketing and Safety, Konkuk University, Seoul 05029, Korea
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Decheng S, Xia F, Shulin W, Yang L. Analysis of Choline, Carnitine, Acetylcarnitine and Acetylcholine in Animal Feeds, Blood and Urine Using Ion Chromatography Coupled with Tandem Mass Spectrometry. J Chromatogr Sci 2021; 59:405-411. [PMID: 33618354 DOI: 10.1093/chromsci/bmab011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Indexed: 11/12/2022]
Abstract
A simple and sensitive method was proposed for choline, carnitine, acetylcarnitine (ACa) and acetylcholine (ACh) separation in feed, blood and urine of animals by using ion chromatography (IC) and detection by tandem mass spectrometry (MS/MS). Analytes were extracted using a mixture of acetonitrile and water, purified by C18 solid-phase extraction columns, separated via IC with an IonPac SCS-1 column and detected by an MS/MS detector by using isotopic internal standards for quantification. The effects of different chromatographic parameters on the separation were also investigated. Under optimal conditions, the recovery was >90%, with the relative standard deviations of <15%. The proposed method was highly reliable for the simultaneous determination of choline, carnitine, ACa and ACh in feed, blood and urine.
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Affiliation(s)
- Suo Decheng
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, China
| | - Fan Xia
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, China
| | - Wei Shulin
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, China
| | - Li Yang
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, China
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El-Bahr SM, Al-Sultan S, Alfattah MA, Shehab A, Sabeq I, Shousha S, Ahmed-Farid O, El-Garhy O, Albusadah KA, Alhojaily S, Khattab W. Influence of dietary combinations of Amphora coffeaeformis with linseed oil or sunflower oil on performance, fatty and amino acid profiles, oxidative stability and meat quality of broiler chickens. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1983736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sabry M. El-Bahr
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Saad Al-Sultan
- Department of Public Health, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | | | - Ahmed Shehab
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
| | - Islam Sabeq
- Department of Food Control and Hygiene, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
| | - Saad Shousha
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Physiology, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
| | - Omar Ahmed-Farid
- Department of Physiology, National Organization for Drug Control and Research, Giza 12622, Egypt
| | - Osama El-Garhy
- Department of Animal Production, Faculty of Agriculture, Benha University, Banha, Egypt
| | - Khalid A. Albusadah
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Sameer Alhojaily
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Wasseem Khattab
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Benha University, Banha, Egypt
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Li S, Gao D, Jiang Y. Function, Detection and Alteration of Acylcarnitine Metabolism in Hepatocellular Carcinoma. Metabolites 2019; 9:E36. [PMID: 30795537 PMCID: PMC6410233 DOI: 10.3390/metabo9020036] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/07/2019] [Accepted: 02/14/2019] [Indexed: 01/01/2023] Open
Abstract
Acylcarnitines play an essential role in regulating the balance of intracellular sugar and lipid metabolism. They serve as carriers to transport activated long-chain fatty acids into mitochondria for β-oxidation as a major source of energy for cell activities. The liver is the most important organ for endogenous carnitine synthesis and metabolism. Hepatocellular carcinoma (HCC), a primary malignancy of the live with poor prognosis, may strongly influence the level of acylcarnitines. In this paper, the function, detection and alteration of acylcarnitine metabolism in HCC were briefly reviewed. An overview was provided to introduce the metabolic roles of acylcarnitines involved in fatty acid β-oxidation. Then different analytical platforms and methodologies were also briefly summarised. The relationship between HCC and acylcarnitine metabolism was described. Many of the studies reported that short, medium and long-chain acylcarnitines were altered in HCC patients. These findings presented current evidence in support of acylcarnitines as new candidate biomarkers for studies on the pathogenesis and development of HCC. Finally we discussed the challenges and perspectives of exploiting acylcarnitine metabolism and its related metabolic pathways as a target for HCC diagnosis and prognosis.
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Affiliation(s)
- Shangfu Li
- State Key Laboratory of Chemical Oncogenomics, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- National & Local United Engineering Lab for Personalized Anti-tumour Drugs, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Dan Gao
- State Key Laboratory of Chemical Oncogenomics, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- National & Local United Engineering Lab for Personalized Anti-tumour Drugs, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- Key Laboratory of Metabolomics at Shenzhen, Shenzhen 518055, China.
| | - Yuyang Jiang
- State Key Laboratory of Chemical Oncogenomics, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China.
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Wei D, Liu J, Guo M, Zhu Y. Determination of betaine,l-carnitine, and choline in human urine using a self-packed column and column-switching ion chromatography with nonsuppressed conductivity detection. J Sep Sci 2017; 40:4246-4255. [DOI: 10.1002/jssc.201700545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/13/2017] [Accepted: 08/21/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Dan Wei
- Department of Chemistry, Xixi Campus; Zhejiang University; Hangzhou China
| | - Junwei Liu
- Department of Chemistry, Xixi Campus; Zhejiang University; Hangzhou China
| | - Ming Guo
- Research Center of Analysis and Measurement; Zhejiang Research Institute of Chemical Industry; Hangzhou China
| | - Yan Zhu
- Department of Chemistry, Xixi Campus; Zhejiang University; Hangzhou China
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Wang H, Xie S. Identification ofl-carnitine and its impurities in food supplement formulations by online column-switching liquid chromatography coupled with linear ion trap mass spectrometry. J Sep Sci 2016; 40:431-441. [DOI: 10.1002/jssc.201600652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 10/09/2016] [Accepted: 11/03/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Hang Wang
- Instrumental Analysis Center; Shanghai Jiao Tong University; Shanghai P.R. China
| | - Sijun Xie
- Instrumental Analysis Center; Shanghai Jiao Tong University; Shanghai P.R. China
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Analytical approaches to determination of carnitine in biological materials, foods and dietary supplements. Food Chem 2014; 142:220-32. [DOI: 10.1016/j.foodchem.2013.06.137] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 05/24/2013] [Accepted: 06/26/2013] [Indexed: 12/30/2022]
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