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Ozaki M, Nakade T, Shimotsuma M, Ikeda A, Kuranaga T, Kakeya H, Hirose T. Simultaneous analysis of DL-Amino acids in foods and beverages using a highly sensitive chiral resolution labeling reagent. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1244:124239. [PMID: 39059318 DOI: 10.1016/j.jchromb.2024.124239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024]
Abstract
Amino acids with various functions are abundant in living organisms and foods. Recent advances in analytical technology show that trace amounts of D-amino acids exist in living organisms and foods. In addition, studies show that these amino acids are involved in various physiological functions that differ from those of L-amino acids. Thus, a technique for analyzing DL-amino acids is required. However, the simultaneous separation and highly sensitive detection of DL-amino acids are complicated; therefore, highly sensitive analytical methods that can rapidly separate and identify compounds are required. We previously developed our original chiral resolution labeling reagents for the separation and highly sensitive detection of DL-amino acids. Here, we developed a simple method for the rapid separation and highly sensitive detection of DL-amino acids in various foods and beverages by liquid chromatography-mass spectrometry (LC-MS) using an octadecyl (C18) column after labeling with 1-fluoro-2,4-dinitrophenyl-5-D-leucine-N,N-dimethylethylenediamineamide (D-FDLDA; enantiomeric excess > 99.9 %). In addition, we synthesized a stable isotope (13C6)-labeled D-FDLDA (13C6-D-FDLDA) and established an analytical method that can accurately identify the peak of each DL-amino acid. MS sensitivity of DL-amino acids labeled with our labeling reagent was higher than that of conventional labeling reagents (Marfey's reagents). The labeling reagent was neither desorbed from each DL-amino acid nor degraded for at least 1 week at 4 °C. Furthermore, we determined the DL-amino acid contents in foods and beverages using the proposed method, and differences in the total amino acid content and D/L ratio in each food and beverage were observed.
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Affiliation(s)
- Makoto Ozaki
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Tomomi Nakade
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Motoshi Shimotsuma
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Akari Ikeda
- TAIYO NIPPON SANSO Corporation, SI Innovation Center, 2008-2 Wada, Tama, Tokyo 206-0001, Japan
| | - Takefumi Kuranaga
- Department of System Chemotherapy and Molecular Sciences, Division of Medicinal Frontier Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Kyoto 606-8501, Japan
| | - Hideaki Kakeya
- Department of System Chemotherapy and Molecular Sciences, Division of Medicinal Frontier Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Kyoto 606-8501, Japan.
| | - Tsunehisa Hirose
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan.
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Accardo F, Prandi B, Dellafiora L, Tedeschi T, Sforza S. How D-amino acids embedded in the protein sequence modify its digestibility: Behaviour of digestive enzymes tested on a model peptide used as target. Food Chem 2024; 458:140175. [PMID: 38964099 DOI: 10.1016/j.foodchem.2024.140175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 05/10/2024] [Accepted: 06/19/2024] [Indexed: 07/06/2024]
Abstract
D-amino acids can affect the action of digestive enzymes, hence the protein digestion. In this work the behaviour of the main stomach and gut digestive enzymes (pepsin, trypsin, and chymotrypsin) in the presence of D-amino acids in the protein chain was monitored over time using a model peptide, Ac-LDAQSAPLRVYVE-NH2 (belonging to β-lactoglobulin, position 48-60), where L-amino acids were systematically substituted by D-amino acids. The results showed several changes in the behaviour of digestive enzymes, not only when the D-amino acids are inserted at the specific cleavage sites (after Val-57), but in some cases also when in distant positions. The effect seemed more pronounced in the case of pepsin rather than the gut enzymes, possibly indicating a better resilience of the upper gut phase of digestion to racemization. These results demonstrated that racemization could impair nutritional value by slowing down digestibility and has different effects according to the enzyme/amino acids involved.
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Affiliation(s)
- Francesca Accardo
- Department of Food and Drug, University of Parma, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Barbara Prandi
- Department of Food and Drug, University of Parma, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Luca Dellafiora
- Department of Food and Drug, University of Parma, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
| | - Tullia Tedeschi
- Department of Food and Drug, University of Parma, Parco Area delle Scienze, 27/A, 43124 Parma, Italy.
| | - Stefano Sforza
- Department of Food and Drug, University of Parma, Parco Area delle Scienze, 27/A, 43124 Parma, Italy
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Inoue Y, Ueda S, Tanikawa T, Sano A, Suzuki R, Todo H, Higuchi Y, Akao K. Characterization of Carbohydrates, Amino Acids, Viscosity, and Antioxidant Capacity in Rice Wines Made in Saitama, Japan, with Different Sake Rice. Foods 2023; 12:4004. [PMID: 37959123 PMCID: PMC10647497 DOI: 10.3390/foods12214004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/18/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
We investigated the physicochemical properties of Japanese rice wines, including their functional properties and carbohydrate and amino acid content in solution and solid state. Three samples were tested. The glucose, allose, and raffinose contents in samples (A, B, C) in g/100 g were (3.47, 3.45, 7.05), (1.60, 1.63, 1.61), and (2.14, 2.75, 1.49), respectively. The total amino acid in µmol/mL was (3.1, 3.5, 4.4). Glutamic acid, alanine, and arginine varied in content across the samples. The viscosity (10 °C) and activation energy (ΔE) calculated using the Andrade equation were (2.81 ± 0.03, 2.74 ± 0.06, 2.69 ± 0.03) mPa-s and (22.3 ± 1.1, 22.0 ± 0.2, 21.3 ± 0.5) kJ/mol, respectively. Principal component analysis using FT-IR spectra confirmed the separation of the samples into principal components 2 and 3. The IC50 values from the DPPH radical scavenging test were (2364.7 ± 185.3, 3041.9 ± 355.1, 3842.7 ± 228.1) µg/mL. Thus, the three rice wines had different carbohydrate and amino acid contents, viscosities, and antioxidant capacities.
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Affiliation(s)
- Yutaka Inoue
- Laboratory of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan
| | - Sae Ueda
- Laboratory of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan
| | - Takashi Tanikawa
- Laboratory of Nutri-Pharmacotherapeutics Management, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan
| | - Aiko Sano
- Laboratory of Natural Products and Phytochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan (R.S.)
| | - Ryuichiro Suzuki
- Laboratory of Natural Products and Phytochemistry, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan (R.S.)
| | - Hiroaki Todo
- Laboratory of Pharmaceutics and Cosmeceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado 3500295, Saitama, Japan
| | - Yuji Higuchi
- Applicative Solution Lab, JASCO Corporation, 2967-5 Ishikawa-machi, Hachioji 1928537, Tokyo, Japan
| | - Kenichi Akao
- Applicative Solution Lab, JASCO Corporation, 2967-5 Ishikawa-machi, Hachioji 1928537, Tokyo, Japan
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Ishii C, Hamase K. Two-dimensional LC-MS/MS and three-dimensional LC analysis of chiral amino acids and related compounds in real-world matrices. J Pharm Biomed Anal 2023; 235:115627. [PMID: 37633168 DOI: 10.1016/j.jpba.2023.115627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/28/2023]
Abstract
Amino acids normally have a chiral carbon and d/l-enantiomers are present. Due to the homochirality features on the present Earth, l-enantiomers are predominant in the living beings and the d-enantiomers are rare. Along with the progress and development of cutting edge analytical methods, several d-amino acids were found even in the higher animals including humans, and their biological functions and diagnostic values have also been reported. However, the amounts of these d-amino acids are much lower than the l-forms, and development/utilization of highly sensitive and selective methods are practically essential to avoid the disturbance from uncountable intrinsic substances. In the present review, multi-dimensional HPLC methods for the determination of chiral amino acids, especially two-dimensional LC-MS/MS and three-dimensional LC methods, and their applications to a variety of real-world matrices are summarized.
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Affiliation(s)
- Chiharu Ishii
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kenji Hamase
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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Kanauchi M, Matsumoto N. Characteristics of alanine racemase in Lactobacillus sakeiZH-2 strain. Food Sci Nutr 2023; 11:4745-4755. [PMID: 37576047 PMCID: PMC10420772 DOI: 10.1002/fsn3.3452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 04/26/2023] [Accepted: 05/02/2023] [Indexed: 08/15/2023] Open
Abstract
Some d-amino acid functions for food production are widely known: d-alanine improves sensory evaluations of sake, beer, and fermented foods. Therefore, for the application of d-amino acids, alanine racemase (ALRase) in Lactobacillus sakei ZH-2, which has strong racemization, was analyzed using molecular biological methods. It had been hypothesized that ALRase coding DNA, alr, in ZH-2 strain differs from those of other Lactobacillus sakei strains. However, complete genome sequencing by the National Center for Biotechnology (NCBI) revealed the amino acid sequence of alr in ZH-2 strain to have homology of 99.4% similarity with the alr in Lactobacillus sakei 23K strain. However, it is considered that the sequence of alr was a unique amino acid sequence in the lactic acid bacteria group. DNA "alr" of ZH-2 strain has a 1140 bp DNA base with 41 kDa molecular mass. Its molecular mass was inferred as approximately 38.0 kDa using SDS-PAGE. Its optimum conditions are pH 9.0 at 30-40°C, showing stability at pH 9.0-10.0 and 4-40°C. Its cofactor is pyridoxal phosphate. Its activity is activated more by copper and zinc ions than by the lack of a metal ion. Additionally, its K m is 1.32 × 10-3 (mol), with V max of 4.27 × 10-5 (μmol-1 min-1). ALRase reacted against alanine most strongly in other substrates such as amino acids. The enzyme against serine was found to have 40% activity against alanine. The enzyme converted up to 54.5% of d-alanine from l-alanine ZH-2 strain.
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Affiliation(s)
- Makoto Kanauchi
- School of Food, Agricultural and Environmental SciencesMiyagi UniversitySendaiJapan
| | - Natsuki Matsumoto
- School of Food, Agricultural and Environmental SciencesMiyagi UniversitySendaiJapan
- Toasu Co., Ltd.ToyokawaJapan
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Dong Q, Guo X, Qu X, Bai S, You X, Cui H, Qin S, Gao L. Chiral covalent organic framework-based open tubular capillary electrochromatography column for enantioseparation of selected amino acids and pesticides. Talanta 2023; 258:124415. [PMID: 36907161 DOI: 10.1016/j.talanta.2023.124415] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
A novel chiral covalent organic framework (CCOF) was synthesized with an imine covalent organic framework TpBD (synthesized via Schiff-base reaction between phloroglucinol (Tp) and benzidine (BD)) modified using (1S)-(+)-10-camphorsulfonyl chloride as chiral ligand by chemical bonding method for the first time, and was characterized by X-ray diffraction, Fourier-transform infrared spectra, X-ray photoelectron spectroscopy, nitrogen adsorption/desorption, thermogravimetry analysis, and zeta-potential. The results revealed that the CCOF had good crystallinity, high specific surface area and good thermal stability. Then, the CCOF was employed as stationary phase in open-tubular capillary electrochromatography (OT-CEC) column (the CCOF-bonded OT-CEC column) for enantioseparation of 21 single chiral compounds (12 natural amino acids including acidic, neutral and basic, 9 pesticides including herbicides, insecticides and fungicides) and simultaneous enantioseparation of mixture amino acids and pesticides with similar structures or properties. Under the optimized CEC conditions, all the analytes reached the baseline separation with high resolutions of 1.67-25.93 and selectivity factors of 1.06-3.49 in 8 min. Finally, the reproducibility and stability of the CCOF-bonded OT-CEC column were measured. Relative standard deviations (RSDs) of retention time and separation efficiency were 0.58-4.57% and 1.85-4.98%, and not obviously changed after 150 runs. These results demonstrate that COFs-modified OT-CEC explore a promising method to separate chiral compounds.
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Affiliation(s)
- Qing Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinyu Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinran Qu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Siqi Bai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xingyu You
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Hongshou Cui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Shili Qin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Lidi Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China.
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OYAIDE M, ISHII C, FUJII A, AKITA T, MITA M, NAGANO M, HAMASE K. Enantioselective Determination of Hydroxy Amino Acids in Japanese Traditional Amber Rice Vinegars. CHROMATOGRAPHY 2022. [DOI: 10.15583/jpchrom.2022.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mai OYAIDE
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Chiharu ISHII
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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8
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Nguyen NTH, Wang WY, Huang WL, Huang CL, Chiang TY. Metagenomics analyses of microbial dynamics associated with putative flavor development in mash fermentation of sake. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Chiral secondary amino acids, their importance, and methods of analysis. Amino Acids 2022; 54:687-719. [PMID: 35192062 DOI: 10.1007/s00726-022-03136-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/04/2022] [Indexed: 11/01/2022]
Abstract
Naturally occurring secondary amino acids, with proline as the main representative, contain an alpha-imino group in a cycle that is typically four-, five-, and six-membered. The unique ring structure exhibits exceptional properties-conformational rigidity, chemical stability, and specific roles in protein structure and folding. Many proline analogues have been used as valuable compounds for the study of metabolism of both prokaryotic and eukaryotic cells and for the synthesis of compounds with desired biological, pharmaceutical, or industrial properties. The D-forms of secondary amino acids play different roles in living organisms than the L-forms. They have different metabolic pathways, biological, physiological, and pharmacological effects, they can be indicators of changes and also serve as biomarkers of diseases. In the scientific literature, the number of articles examining D-amino acids in biological samples is increasing. The review summarises information on the occurrence and importance of D- and L-secondary amino acids-azetidic acid, proline, hydroxyprolines, pipecolic, nipecotic, hydroxypipecolic acids and related peptides containing these D-AAs, as well as the main analytical methods (mostly chromatographic) used for their enantiomeric determination in different matrices (biological samples, plants, food, water, and soil).
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Lyu X, Matsumoto A, Minami T. A polythiophene-based chemosensor array for Japanese rice wine (sake) tasting. Polym J 2021. [DOI: 10.1038/s41428-021-00521-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Kajitani K, Ishikawa T, Shibata K, Kouya T, Kera Y, Takahashi S. Development of an enzymatic screening method for d-aspartate-producing lactic acid bacteria. Enzyme Microb Technol 2021; 149:109835. [PMID: 34311880 DOI: 10.1016/j.enzmictec.2021.109835] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 11/19/2022]
Abstract
d-Aspartate (d-Asp) is an important intermediate for synthetic penicillin and an endogenous amino acid that plays important roles in the endocrine and nervous systems in animals including humans. Lactic acid bacteria (LABs) have been used as probiotics in humans, and some LAB species produce d-Asp as a component of cell wall peptidoglycan. LAB strains with greater d-Asp production would therefore be valuable for industrial d-Asp production. In this study, we developed an enzymatic screening method for d-Asp-producing LABs and isolated a strain with high d-Asp production. The d-Asp concentration in the culture medium was colorimetrically estimated up to 4 mM using d-aspartate oxidase (ChDDO) from the yeast Cryptococcus humicola strain UJ1 coupled with horseradish peroxidase, although a more accurate determination required correction because of interference by the medium component Mn2+. We isolated 628 LAB strains from various foods and screened them for d-Asp production using the enzymatic d-Asp assay method. The screening identified 13 d-Asp-producing LAB strains, which were suggested to belong to the genera Latilactobacillus, Levilactobacillus, Lactococcus, and Enterococcus. d-Asp production ability was likely to widely differ among the strains in the same genera and species. One strain, named strain WDN19, produced much higher d-Asp levels (1.84 mM), and it was closely related to Latilactobacillus curvatus. These results indicated that the enzymatic screening method was useful for identifying and isolating d-Asp-producing LABs rapidly and easily, and it might provide novel findings regarding d-Asp production by LABs.
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Affiliation(s)
- Kengo Kajitani
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Takumi Ishikawa
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Kimihiko Shibata
- Department of Applied Chemistry and Biochemistry, National Institute of Technology, Fukushima College, Iwaki, Fukushima, 970-8034, Japan
| | - Tomoaki Kouya
- Department of Materials Chemistry and Bioengineering, National Institute of Technology, Oyama College, Tochigi, 323-0806, Japan
| | - Yoshio Kera
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan
| | - Shouji Takahashi
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-2188, Japan.
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Shih MK, Hsu QY, Liou BK, Peng YH, Hou CY. Deep Ocean Water Concentrate Changes Physicochemical Characteristics, the Profile of Volatile Components and Consumer Acceptance for Taiwanese Rice Shochu. Foods 2020; 9:foods9121806. [PMID: 33291825 PMCID: PMC7762019 DOI: 10.3390/foods9121806] [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: 11/02/2020] [Revised: 11/26/2020] [Accepted: 12/01/2020] [Indexed: 11/23/2022] Open
Abstract
To study the effects of deep-ocean water concentrate (DOWC) on sake quality, Taichung No. 10 indica rice (Oryza sativa subsp. indica) and Tainan No. 11 japonica rice (O. sativa subsp. japonica) were used as raw materials, and basic physicochemical property parameters in shochu were analyzed differentially. Sake fermentation mash analysis results revealed that DOWC addition did not significantly affect the basic physicochemical properties during sake brewing, but it significantly reduced citric acid and malic acid contents in Taichung No. 10 indica rice sake sample by 52–66% and 73–93%, respectively. DOWC addition significantly increased citric acid content in Tainan No. 11 japonica rice sake sample by 32–202%. Rice shochu analysis results revealed that DOWC addition significantly increased isoamyl acetate, ethyl hexanoate, and ethyl octanoate contents in shochu made from japonica rice and indica rice, respectively. The results indicate that rice variety directly affects the types of volatile compounds in rice shochu. Principal component analysis and sensory evaluation results revealed that DOWC addition affected the composition of volatile compounds in the two types of rice shochu and resulted in differences in flavor evaluation. DOWC addition affects yeast metabolites and directly changes the volatile compound composition and flavor of rice shochu.
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Affiliation(s)
- Ming-Kuei Shih
- Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812, Taiwan;
| | - Qiao-Yu Hsu
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan;
| | - Bo-Kang Liou
- Department of Food Science and Technology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan;
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 406, Taiwan
| | - Yu-Han Peng
- Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812, Taiwan;
- Correspondence: (Y.-H.P.); (C.-Y.H.); Tel.: +886-917545098 (Y.-H.P.); +886-985300345 (C.-Y.H.); Fax: +886-7-3640364 (Y.-H.P. & C.-Y.H.)
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan;
- Correspondence: (Y.-H.P.); (C.-Y.H.); Tel.: +886-917545098 (Y.-H.P.); +886-985300345 (C.-Y.H.); Fax: +886-7-3640364 (Y.-H.P. & C.-Y.H.)
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13
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Carenzi G, Sacchi S, Abbondi M, Pollegioni L. Direct chromatographic methods for enantioresolution of amino acids: recent developments. Amino Acids 2020; 52:849-862. [DOI: 10.1007/s00726-020-02873-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/05/2020] [Indexed: 12/24/2022]
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Rosini E, D’Antona P, Pollegioni L. Biosensors for D-Amino Acids: Detection Methods and Applications. Int J Mol Sci 2020; 21:E4574. [PMID: 32605078 PMCID: PMC7369756 DOI: 10.3390/ijms21134574] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
D-enantiomers of amino acids (D-AAs) are only present in low amounts in nature, frequently at trace levels, and for this reason, their biological function was undervalued for a long time. In the past 25 years, the improvements in analytical methods, such as gas chromatography, HPLC, and capillary electrophoresis, allowed to detect D-AAs in foodstuffs and biological samples and to attribute them specific biological functions in mammals. These methods are time-consuming, expensive, and not suitable for online application; however, life science investigations and industrial applications require rapid and selective determination of D-AAs, as only biosensors can offer. In the present review, we provide a status update concerning biosensors for detecting and quantifying D-AAs and their applications for safety and quality of foods, human health, and neurological research. The review reports the main challenges in the field, such as selectivity, in order to distinguish the different D-AAs present in a solution, the simultaneous assay of both L- and D-AAs, the production of implantable devices, and surface-scanning biosensors. These innovative tools will push future research aimed at investigating the neurological role of D-AAs, a vibrant field that is growing at an accelerating pace.
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Affiliation(s)
- Elena Rosini
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100 Varese, Italy; (P.D.); (L.P.)
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Taniguchi M, Takao Y, Kawasaki H, Yamada T, Fukusaki E. Profiling of taste-related compounds during the fermentation of Japanese sake brewed with or without a traditional seed mash (kimoto). J Biosci Bioeng 2020; 130:63-70. [PMID: 32265130 DOI: 10.1016/j.jbiosc.2020.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/20/2020] [Accepted: 02/26/2020] [Indexed: 10/24/2022]
Abstract
Japanese sake production involves three processes: rice koji fermentation, seed mash fermentation, and main mash fermentation. Traditional seed mash (kimoto) production utilizes natural lactic acid produced by lactic acid bacteria for pure cultures of only sake yeast, preventing the growth of wild yeast and other unwanted bacteria. Recently, because kimoto production requires substantial time and labor, sake yeast mass-cultured in usual liquid medium has been used as a seed mash alternative. Sake quality is highly similar to that of kimoto, suggesting that they share similar component profiles. However, comparative component analyses of sake brewed with kimoto and sake brewed with cultured yeast are lacking. In this study, a time-course analysis of hydrophilic compounds in the main mash brewed with kimoto and with cultured yeast as well as a sensory evaluation of the products were performed. As a result, differences in various compounds and in umami taste level between sake brewed with kimoto and cultured yeast were detected. This is the first comparative analysis of changes in the component profile during sake main mash brewing using kimoto seed mash and cultured sake yeast; our results clarify the effects of kimoto seed mash on main mash brewing and sake quality.
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Affiliation(s)
- Moyu Taniguchi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshifumi Takao
- General Research Laboratory, Kiku-Masamune Sake Brewing Co. Ltd., 1-8-6 Uozaki-nishimachi, Higashinada-ku, Kobe, Hyogo 658-0026, Japan
| | - Hiroshi Kawasaki
- General Research Laboratory, Kiku-Masamune Sake Brewing Co. Ltd., 1-8-6 Uozaki-nishimachi, Higashinada-ku, Kobe, Hyogo 658-0026, Japan
| | - Tasuku Yamada
- General Research Laboratory, Kiku-Masamune Sake Brewing Co. Ltd., 1-8-6 Uozaki-nishimachi, Higashinada-ku, Kobe, Hyogo 658-0026, Japan
| | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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Kobayashi J. d-Amino Acids and Lactic Acid Bacteria. Microorganisms 2019; 7:microorganisms7120690. [PMID: 31842512 PMCID: PMC6955911 DOI: 10.3390/microorganisms7120690] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/29/2019] [Accepted: 12/08/2019] [Indexed: 12/17/2022] Open
Abstract
Proteins are composed of l-amino acids except for glycine, which bears no asymmetric carbon atom. Accordingly, researchers have studied the function and metabolism of l-amino acids in living organisms but have paid less attention to the presence and roles of their d-enantiomers. However, with the recent developments in analytical techniques, the presence of various d-amino acids in the cells of various organisms and the importance of their roles have been revealed. For example, d-serine (d-Ser) and d-aspartate (d-Asp) act as neurotransmitters and hormone-like substances, respectively, in humans, whereas some kinds of d-amino acids act as a biofilm disassembly factor in bacteria. Interestingly, lactic acid bacteria produce various kinds of d-amino acids during fermentation, and many d-amino acids taste sweet, compared with the corresponding l-enantiomers. The influence of d-amino acids on human health and beauty has been reported in recent years. These facts suggest that the d-amino acids produced by lactic acid bacteria are important in terms of the taste and function of lactic-acid-fermented foods. Against this background, unique d-amino-acid-metabolizing enzymes have been searched for and observed in lactic acid bacteria. This review summarizes and introduces the importance of various d-amino acids in this regard.
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Affiliation(s)
- Jyumpei Kobayashi
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501, Japan
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17
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D-amino acids in foods. Appl Microbiol Biotechnol 2019; 104:555-574. [PMID: 31832715 DOI: 10.1007/s00253-019-10264-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/12/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023]
Abstract
With the only exception of glycine, all amino acids exist in two specular structures which are mirror images of each other, called D-(dextro) and L-(levo) enantiomers. During evolution, L-amino acids were preferred for protein synthesis and main metabolism; however, the D-amino acids (D-AAs) acquired different and specific functions in different organisms (from playing a structural role in the peptidoglycan of the bacterial cell wall to modulating neurotransmission in mammalian brain). With the advent of sophisticated and sensitive analytical techniques, it was established during the past few decades that many foods contain considerable amounts of D-AAs: we consume more than 100 mg of D-AAs every day. D-AAs are present in a variety of foodstuffs, where they fulfill a relevant role in producing differences in taste and flavor and in their antimicrobial and antiaging properties from the corresponding L-enantiomers. In this review, we report on the derivation of D-AAs in foods, mainly originating from the starting materials, fermentation processes, racemization during food processing, or contamination. We then focus on leading-edge methods to identify and quantify D-AAs in foods. Finally, current knowledge concerning the effect of D-AAs on the nutritional state and human health is summarized, highlighting some positive and negative effects. Notwithstanding recent progress in D-AA research, the relationships between presence and nutritional value of D-AAs in foods represent a main scientific issue with interesting economic impact in the near future.
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Fukuda T, Nagai K, Yagi A, Kobayashi K, Uchida R, Yasuhara T, Tomoda H. Nectriatide, a Potentiator of Amphotericin B Activity from Nectriaceae sp. BF-0114. JOURNAL OF NATURAL PRODUCTS 2019; 82:2673-2681. [PMID: 31498627 DOI: 10.1021/acs.jnatprod.8b01056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new compound, designated nectriatide (1), was isolated as a potentiator of amphotericin B (AmB) activity against Candida albicans from the culture broth of Nectriaceae sp. BF-0114. This structure was elucidated based on spectroscopic analyses (1D and 2D NMR data), chemical methods, and total synthesis. Compound 1 was a unique cyclotetrapeptide consisting of l-N-methyltyrosine, anthranilic acid, l-alanine, and l-valine. Compound 1 and several synthetic derivatives, including linear peptides, potentiated AmB activity against C. albicans by up to 16-fold (the MIC value of AmB decreased from 0.5 μg/mL to 0.031 μg/mL in combination with test compound).
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Affiliation(s)
- Takashi Fukuda
- Microbial Chemistry and Medicinal Research Laboratories, Graduate School of Pharmaceutical Sciences , Kitasato University , 5-9-1 Shirokane , Minato-ku, Tokyo 108-8641 , Japan
- Department of Fisheries, Faculty of Agriculture and Agricultural Technology and Innovation Research Institute , Kindai University , 3327-204 Nakamachi , Nara 631-8505 , Japan
| | - Kenichiro Nagai
- Microbial Chemistry and Medicinal Research Laboratories, Graduate School of Pharmaceutical Sciences , Kitasato University , 5-9-1 Shirokane , Minato-ku, Tokyo 108-8641 , Japan
| | - Akiho Yagi
- Department of Natural Product Chemistry , Tohoku Medical and Pharmaceutical University , 4-4-1 Komatsushima , Aoba-ku, Sendai, Miyagi 981-8558 , Japan
| | - Keisuke Kobayashi
- Microbial Chemistry and Medicinal Research Laboratories, Graduate School of Pharmaceutical Sciences , Kitasato University , 5-9-1 Shirokane , Minato-ku, Tokyo 108-8641 , Japan
| | - Ryuji Uchida
- Department of Natural Product Chemistry , Tohoku Medical and Pharmaceutical University , 4-4-1 Komatsushima , Aoba-ku, Sendai, Miyagi 981-8558 , Japan
| | - Tadashi Yasuhara
- Microbial Chemistry and Medicinal Research Laboratories, Graduate School of Pharmaceutical Sciences , Kitasato University , 5-9-1 Shirokane , Minato-ku, Tokyo 108-8641 , Japan
| | - Hiroshi Tomoda
- Microbial Chemistry and Medicinal Research Laboratories, Graduate School of Pharmaceutical Sciences , Kitasato University , 5-9-1 Shirokane , Minato-ku, Tokyo 108-8641 , Japan
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Kato S, Inagaki K, Oikawa T. Application of l-methionine γ-lyase in chiral amino acid analysis. Anal Biochem 2019; 580:56-61. [PMID: 31163123 DOI: 10.1016/j.ab.2019.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/09/2019] [Accepted: 05/31/2019] [Indexed: 10/26/2022]
Abstract
Here, a conventional chiral amino acid analysis method using high-performance liquid chromatography was coupled with a sample pretreatment using l-methionine γ-lyase from Pseudomonas putida ICR 3460 for the selective analysis of l-methionine and l-tryptophan. The sample was analyzed after the degradation of l-methionine with l-methionine γ-lyase, as l-methionine coelutes with l-tryptophan under the standard chiral amino acid analytical conditions used for precolumn derivatization with o-phthalaldehyde and N-acetyl-l-cysteine. The l-tryptophan in the sample was then eluted as a clearly separated peak and analyzed further. Since the l-methionine γ-lyase did not act on l-tryptophan, we were able to calculate the l-methionine or l-tryptophan concentration based on the data obtained from 2 individual runs: the sample with and without l-methionine γ-lyase pretreatment. The concentration of l-tryptophan was calculated from the data obtained from the sample with l-methionine γ-lyase pretreatment, while the concentration of l-methionine was calculated using the following equation: l-methionine concentration = {the data from the sample without l-methionine γ-lyase pretreatment}-{the data from the sample with l-methionine γ-lyase pretreatment}. Model samples containing authentic amino acids and a fermented food sample were analyzed by our method, and the calculated concentrations of l-methionine and l-tryptophan were consistently in agreement with the theoretical values.
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Affiliation(s)
- Shiro Kato
- Kansai University High Technology Research Center, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan
| | - Kenji Inagaki
- Department of Biofunctional Chemistry, Graduate School of Environmental and Life Science, Okayama University, Tsushima-naka 1-1-1, Kita-ku, Okayama, 700-8530, Japan
| | - Tadao Oikawa
- Kansai University High Technology Research Center, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan; Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan.
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Taniguchi M, Shimotori A, Fukusaki E. Enantioselective Amino Acid Profile Improves Metabolomics-based Sensory Prediction of Japanese Sake. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2019. [DOI: 10.3136/fstr.25.775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Moyu Taniguchi
- Department of Biotechnology, Graduate School of Engineering, Osaka University
| | | | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University
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21
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Metabolic switching of sake yeast by kimoto lactic acid bacteria through the [GAR] non-genetic element. J Biosci Bioeng 2018; 126:624-629. [DOI: 10.1016/j.jbiosc.2018.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022]
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Adachi M, Shimizu R, Kato S, Oikawa T. The first identification and characterization of a histidine-specific amino acid racemase, histidine racemase from a lactic acid bacterium, Leuconostoc mesenteroides subsp. sake NBRC 102480. Amino Acids 2018; 51:331-343. [PMID: 30377839 DOI: 10.1007/s00726-018-2671-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/19/2018] [Indexed: 12/22/2022]
Abstract
We expressed a histidine racemase from Leuconostoc mesenteroides subsp. sake NBRC 102480 (Lm-HisR) successively in a soluble fraction of Escherichia coli BL21 (DE3) and then highly purified it from the cell-free extract. Lm-HisR showed amino acid racemase activity on histidine specifically. This is the first example of an amino acid racemase specifically acting on histidine. Phylogenetic analysis of Lm-HisR showed that Lm-HisR was located far from the cluster of alanine racemases reported thus far and only in lactic acid bacteria of the genus Leuconostoc. Alignment of the primary structure of Lm-HisR with those of lysine and alanine racemases and alanine racemase homologs previously reported revealed that the PLP-binding lysine and catalytic tyrosine were completely conserved, and some residues that are unique to the phylogenetic branch of Lm-HisR, Phe44, Ser45, Thr174, Thr206, His286, Ser287, Phe292, Gly312, Val357, and Ala358 were identified. We determined the crystal structure of Lm-HisR complexed with PLP at a 2.1-Å resolution. The crystal structure contained four molecules (two dimers) in the asymmetric unit. When comparing the 3D structure of Lm-HisR with those of racemases from Geobacillus stearothermophilus and Oenococcus oeni, Met315 was completely conserved, but Val357 was not. In addition, two significant differences were observed between Lm-HisR and G. stearothermophilus alanine racemase. Phe44 and His286 in Lm-HisR corresponded to Tyr43 and Tyr284 in G. stearothermophilus alanine racemase, respectively. Based on the structural analysis, comparison with alanine racemase, and docking simulation, three significant residues, Phe44, His286, and Val357, were identified that may control the substrate specificity of Lm-HisR.
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Affiliation(s)
- Motoyasu Adachi
- Tokai Quantum Beam Science Center, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, 2-4 Shirakata, Tokai, Ibaraki, 319-1106, Japan
| | - Rumi Shimizu
- Tokai Quantum Beam Science Center, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, 2-4 Shirakata, Tokai, Ibaraki, 319-1106, Japan
| | - Shiro Kato
- Kansai University High Technology Research Center, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan
- International Institute of Rare Sugar Research and Education, Kagawa University, 2393 Ikenobe, Miki, Kagawa, 761-0795, Japan
| | - Tadao Oikawa
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan.
- Kansai University High Technology Research Center, 3-3-35 Yamate-Cho, Suita, Osaka, 564-8680, Japan.
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23
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SEREEKITTIKUL N, KOGA R, AKITA T, FURUSHO A, REISCHL R, MITA M, FUJII A, HASHIGUCHI K, NAGANO M, LINDNER W, HAMASE K. Multi-Dimensional HPLC Analysis of Serine Containing Chiral Dipeptides in Japanese Traditional Amber Rice Vinegar. CHROMATOGRAPHY 2018. [DOI: 10.15583/jpchrom.2018.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Nutchaya SEREEKITTIKUL
- Graduate School of Pharmaceutical Sciences, Kyushu University
- Faculty of Pharmacy, Mahidol University
| | - Reiko KOGA
- Graduate School of Pharmaceutical Sciences, Kyushu University
- Faculty of Pharmaceutical Sciences, Fukuoka University
| | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Aogu FURUSHO
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | | | | | | | | | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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Kato S, Oikawa T. A Novel Bifunctional Amino Acid Racemase With Multiple Substrate Specificity, MalY From Lactobacillus sakei LT-13: Genome-Based Identification and Enzymological Characterization. Front Microbiol 2018; 9:403. [PMID: 29563907 PMCID: PMC5845896 DOI: 10.3389/fmicb.2018.00403] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 02/21/2018] [Indexed: 01/19/2023] Open
Abstract
The Lactobacillus sakei strain LK-145 isolated from Moto, a starter of sake, produces potentially large amounts of three D-amino acids, D-Ala, D-Glu, and D-Asp, in a medium containing amylase-digested rice as a carbon source. The comparison of metabolic pathways deduced from the complete genome sequence of strain LK-145 to the type culture strain of Lactobacillus sakei strain LT-13 showed that the L- and D-amino acid metabolic pathways are similar between the two strains. However, a marked difference was observed in the putative cysteine/methionine metabolic pathways of strain LK-145 and LT-13. The cystathionine β-lyase homolog gene malY was annotated only in the genome of strain LT-13. Cystathionine β-lyase is an important enzyme in the cysteine/methionine metabolic pathway that catalyzes the conversion of L-cystathionine into L-homocysteine. In addition to malY, most genome-sequenced strains of L. sakei including LT-13 lacked the homologous genes encoding other putative enzymes in this pathway. Accordingly, the cysteine/methionine metabolic pathway likely does not function well in almost all strains of L. sakei. We succeeded in cloning and expressing the malY gene from strain LT-13 (Ls-malY) in the cells of Escherichia coli BL21 (DE3) and characterized the enzymological properties of Ls-MalY. Spectral analysis of purified Ls-MalY showed that Ls-MalY contained a pyridoxal 5′-phosphate (PLP) as a cofactor, and this observation agreed well with the prediction based on its primary structure. Ls-MalY showed amino acid racemase activity and cystathionine β-lyase activity. Ls-MalY showed amino acid racemase activities in various amino acids, such as Ala, Arg, Asn, Glu, Gln, His, Leu, Lys, Met, Ser, Thr, Trp, and Val. Mutational analysis revealed that the 𝜀-amino group of Lys233 in the primary structure of Ls-MalY likely bound to PLP, and Lys233 was an essential residue for Ls-MalY to catalyze both the amino acid racemase and β-lyase reactions. In addition, Tyr123 was a catalytic residue in the amino acid racemase reaction but strongly affected β-lyase activity. These results showed that Ls-MalY is a novel bifunctional amino acid racemase with multiple substrate specificity; both the amino acid racemase and β-lyase reactions of Ls-MalY were catalyzed at the same active site.
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Affiliation(s)
- Shiro Kato
- High Technology Research Core, Kansai University, Suita, Japan
| | - Tadao Oikawa
- High Technology Research Core, Kansai University, Suita, Japan.,Department of Life Science and Biotechnology, Faculty of Chemistry, Materials, and Bioengineering, Kansai University, Suita, Japan
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25
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Onozato M, Nakazawa H, Ishimaru K, Nagashima C, Fukumoto M, Hakariya H, Sakamoto T, Ichiba H, Fukushima T. Alteration in plasma and striatal levels of d-serine after d-serine administration with or without nicergoline: An in vivo microdialysis study. Heliyon 2017; 3:e00399. [PMID: 28924620 PMCID: PMC5591394 DOI: 10.1016/j.heliyon.2017.e00399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/10/2017] [Accepted: 08/29/2017] [Indexed: 12/18/2022] Open
Abstract
Aims d-Serine (d-Ser), a co-agonist of N-methyl-d-aspartate receptor (NMDAR), is effective for treating schizophrenia. The present study investigated changes in plasma and striatal d-Ser levels in Sprague-Dawley (SD) rats after intraperitoneal d-Ser administration alone or together with nicergoline (Nic), a commercial cerebral ameliorating drug, using in vivo microdialysis (MD) to explore the function of Nic. Main methods Phosphate-buffered saline (PBS) or Nic (0, 1.0, or 3.0 mg/kg) followed by d-Ser (5.0, 10.0, 20.0, and 50.0 mg/kg for PBS or 20.0 mg/kg for Nic) was administered intraperitoneally to male SD rats, and the profiles of d-Ser levels in plasma and striatal MD samples were examined by high-performance liquid chromatography (HPLC) with fluorescence detection. The area under the curve (AUC) for the MD and plasma samples was also calculated and statistically compared among groups. Key findings AUC values of d-Ser increased in a d-Ser dose-dependent manner in plasma samples, while a proportional increase in the AUC values of striatal MD samples was only observed in d-Ser doses up to 20 mg/kg. The Nic co-administered group showed a significant increase in the AUC of plasma d-Ser in a Nic dose-dependent manner, but the AUC in striatal d-Ser significantly decreased with increasing Nic doses suggesting that Nic may prevent excess d-Ser from penetrating the central nervous system (CNS). Significance Nic may prevent an excessive distribution of exogenous d-Ser, such as that from a dietary origin, into the CNS by suppressing excitatory neurotransmission through NMDAR.
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Affiliation(s)
- Mayu Onozato
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hiromi Nakazawa
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Katsuyuki Ishimaru
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Chihiro Nagashima
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Minori Fukumoto
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hitomi Hakariya
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Tatsuya Sakamoto
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hideaki Ichiba
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Takeshi Fukushima
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
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Genome Sequence of Lactobacillus sakei LK-145 Isolated from a Japanese Sake Cellar as a High Producer of d-Amino Acids. GENOME ANNOUNCEMENTS 2017; 5:5/33/e00656-17. [PMID: 28818888 PMCID: PMC5604761 DOI: 10.1128/genomea.00656-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This announcement reports the complete genome sequence of strain LK-145 of Lactobacillus sakei isolated from a Japanese sake cellar as a potent strain for the production of large amounts of d-amino acids. Three putative genes encoding an amino acid racemase were identified.
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Whole-Genome Sequence of Lactobacillus sakei LT-13 Isolated from Moto Starter of Sake. GENOME ANNOUNCEMENTS 2017; 5:5/31/e00651-17. [PMID: 28774969 PMCID: PMC5543631 DOI: 10.1128/genomea.00651-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Lactobacillus sakei strain LT-13 is a lactic acid bacterium isolated from moto starter of Japanese sake. This genome analysis revealed that the genome is composed of a circular chromosome and one plasmid, which contain 1,938 and 8 putative protein-coding genes, respectively.
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Genome Sequence of Leuconostoc mesenteroides LK-151 Isolated from a Japanese Sake Cellar as a High Producer of d-Amino Acids. GENOME ANNOUNCEMENTS 2017; 5:5/30/e00661-17. [PMID: 28751393 PMCID: PMC5532831 DOI: 10.1128/genomea.00661-17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Here, we report the complete genome sequence of strain LK-151 of Leuconostoc mesenteroides, which was isolated from a Japanese sake cellar and has the potential to produce large amounts of d-amino acids, namely, d-Ala and d-Glu. The genome contains 4 genes related to d-amino acid production.
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Moldovan RC, Bodoki E, Servais AC, Crommen J, Oprean R, Fillet M. (+) or (-)-1-(9-fluorenyl)ethyl chloroformate as chiral derivatizing agent: A review. J Chromatogr A 2017; 1513:1-17. [PMID: 28756893 DOI: 10.1016/j.chroma.2017.07.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 07/10/2017] [Accepted: 07/12/2017] [Indexed: 11/25/2022]
Abstract
Over the last 30years, (±)-1-(9-fluorenyl)ethyl chloroformate ((±)-FLEC) was used as a chiral derivatizing agent in various analytical applications involving a wide range of endogenous, pharmaceutical and environmentally relevant molecules. This comprehensive review aims to present all the significant aspects related to the state of the art in FLEC labeling and subsequent chiral separation of the resulting diastereomers using LC, SFC and CE techniques.
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Affiliation(s)
- Radu-Cristian Moldovan
- Laboratory for the Analysis of Medicines, Department of Pharmacy, Faculty of Medicine, CIRM, University of Liege,Avenue Hippocrate 15, B36-+3-T4, 4000 Liege, Belgium; Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy Cluj-Napoca,4 Louis Pasteur street, 400349 Cluj-Napoca, Romania
| | - Ede Bodoki
- Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy Cluj-Napoca,4 Louis Pasteur street, 400349 Cluj-Napoca, Romania
| | - Anne-Catherine Servais
- Laboratory for the Analysis of Medicines, Department of Pharmacy, Faculty of Medicine, CIRM, University of Liege,Avenue Hippocrate 15, B36-+3-T4, 4000 Liege, Belgium
| | - Jacques Crommen
- Laboratory for the Analysis of Medicines, Department of Pharmacy, Faculty of Medicine, CIRM, University of Liege,Avenue Hippocrate 15, B36-+3-T4, 4000 Liege, Belgium
| | - Radu Oprean
- Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, "Iuliu Hațieganu" University of Medicine and Pharmacy Cluj-Napoca,4 Louis Pasteur street, 400349 Cluj-Napoca, Romania
| | - Marianne Fillet
- Laboratory for the Analysis of Medicines, Department of Pharmacy, Faculty of Medicine, CIRM, University of Liege,Avenue Hippocrate 15, B36-+3-T4, 4000 Liege, Belgium.
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Novel high-throughput and widely-targeted liquid chromatography–time of flight mass spectrometry method for d-amino acids in foods. J Biosci Bioeng 2017; 123:126-133. [DOI: 10.1016/j.jbiosc.2016.07.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/10/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
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A micellar electrokinetic chromatography-mass spectrometry approach using in-capillary diastereomeric derivatization for fully automatized chiral analysis of amino acids. J Chromatogr A 2016; 1467:400-408. [PMID: 27554025 DOI: 10.1016/j.chroma.2016.08.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 08/12/2016] [Accepted: 08/15/2016] [Indexed: 11/20/2022]
Abstract
In the context of bioanalytical method development, process automatization is nowadays a necessity in order to save time, improve method reliability and reduce costs. For the first time, a fully automatized micellar electrokinetic chromatography-mass spectrometry (MEKC-MS) method with in-capillary derivatization was developed for the chiral analysis of d- and l-amino acids using (-)-1-(9-fluorenyl) ethyl chloroformate (FLEC) as labeling reagent. The derivatization procedure was optimized using an experimental design approach leading to the following conditions: sample and FLEC plugs in a 2:1 ratio (15s, 30mbar: 7.5s, 30mbar) followed by 15min of mixing using a voltage of 0.1kV. The formed diastereomers were then separated using a background electrolyte (BGE) consisting of 150mM ammonium perfluorooctanoate (APFO) (pH=9.5) and detected by mass spectrometry (MS). Complete chiral resolution was obtained for 8 amino acids, while partial separation was achieved for 6 other amino acid pairs. The method showed good reproducibility and linearity in the low micromolar concentration range. The applicability of the method to biological samples was tested by analyzing artificial cerebrospinal fluid (aCSF) samples.
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32
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González Paredes RM, García Pinto C, Pérez Pavón JL, Moreno Cordero B. Derivatization coupled to headspace programmed-temperature vaporizer gas chromatography with mass spectrometry for the determination of amino acids: Application to urine samples. J Sep Sci 2016; 39:3375-83. [DOI: 10.1002/jssc.201600186] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Rosa María González Paredes
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas; Universidad de Salamanca; Salamanca Spain
| | - Carmelo García Pinto
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas; Universidad de Salamanca; Salamanca Spain
| | - José Luis Pérez Pavón
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas; Universidad de Salamanca; Salamanca Spain
| | - Bernardo Moreno Cordero
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas; Universidad de Salamanca; Salamanca Spain
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33
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Washio T, Kato S, Oikawa T. Molecular cloning and enzymological characterization of pyridoxal 5′-phosphate independent aspartate racemase from hyperthermophilic archaeon Thermococcus litoralis DSM 5473. Extremophiles 2016; 20:711-21. [DOI: 10.1007/s00792-016-0860-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 06/26/2016] [Indexed: 11/29/2022]
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34
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Inoue Y, Katsumata T, Watanabe H, Hayase F. Mechanisms of d-Amino Acid Formation During Maturation of Sweet Rice Wine (mirin). FOOD SCIENCE AND TECHNOLOGY RESEARCH 2016. [DOI: 10.3136/fstr.22.679] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yutaka Inoue
- Department of Agricultural Chemistry, Faculty of Agriculture, Meiji University
- Food Research & Development Laboratory, MC Food Specialties Inc
| | | | - Hirohito Watanabe
- Department of Life Science, Faculty of Agriculture, Meiji University
| | - Fumitaka Hayase
- Department of Agricultural Chemistry, Faculty of Agriculture, Meiji University
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35
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Ye N, Ma J, An J, Li J, Cai Z, Zong H. Separation of amino acid enantiomers by a capillary modified with a metal–organic framework. RSC Adv 2016. [DOI: 10.1039/c6ra02741e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Covalent bonding of homochiral metal–organic framework in capillaries for amino acid enantiomer separation by capillary electrochromatography.
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Affiliation(s)
- Nengsheng Ye
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
| | - Jichao Ma
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
| | - Jianxin An
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
| | - Jian Li
- Beijing Institute of Veterinary Drugs Control
- Beijing
- P. R. China
| | - Zhimin Cai
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
| | - Han Zong
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
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36
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The stereoselective separation of serine containing peptides by zwitterionic ion exchanger type chiral stationary phases and the study of serine racemization mechanisms by isotope exchange and tandem mass spectrometry. J Pharm Biomed Anal 2015; 116:123-30. [DOI: 10.1016/j.jpba.2015.02.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/04/2015] [Accepted: 02/07/2015] [Indexed: 11/18/2022]
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37
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Wu Q, Fang A, Li H, Zhang Y, Yao S. Enzymatic-induced upconversion photoinduced electron transfer for sensing tyrosine in human serum. Biosens Bioelectron 2015; 77:957-62. [PMID: 26544870 DOI: 10.1016/j.bios.2015.10.084] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/17/2015] [Accepted: 10/28/2015] [Indexed: 12/20/2022]
Abstract
This paper reports a novel nanosensor for tyrosine based on photoinduced electron-transfer (PET) between NaYF4:Yb, Tm upconversion nanoparticles (UCNPs) and melanin-like polymers. Melanin-like films were obtained from catalytic oxidation of tyrosine by tyrosinase, and deposited on the surface of UCNPs, and then quenched the fluorescence of UCNPs. Under the optimized conditions, the fluorescence quenching of UCNPs showed a good linear response to tyrosine concentration in the range of 0.8-100 μΜ with a detection limit of 1.1 μΜ. Meanwhile, it showed good sensitivity, stability and has been successfully applied to the detection of tyrosine in human serum.
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Affiliation(s)
- Qiongqiong Wu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Aijin Fang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Haitao Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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38
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Extra-facile chiral separation of amino acid enantiomers by LC-TOFMS analysis. J Biosci Bioeng 2015; 121:349-53. [PMID: 26321292 DOI: 10.1016/j.jbiosc.2015.06.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 11/23/2022]
Abstract
An extra-facile chiral liquid chromatography-time of flight mass spectrometry (LC-TOFMS) analytical method of amino acid enantiomers has been developed without a derivatization process. The enantioseparation of eighteen proteinogenic amino acids (except for proline) was simultaneously performed using a combination of a chiral column (CROWNPAK CR-I(+)) and a TOFMS within 15 min. An isocratic condition of a simple mobile phase comprising acetonitrile/water/trifluoroacetic acid (96/4/0.5) gave baseline separation of all underivatized amino acid enantiomers on the chiral column.
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39
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Fujii T, Yamauchi T, Ishiyama M, Gogami Y, Oikawa T, Hata Y. Crystallographic studies of aspartate racemase from Lactobacillus sakei NBRC 15893. Acta Crystallogr F Struct Biol Commun 2015; 71:1012-6. [PMID: 26249691 PMCID: PMC4528933 DOI: 10.1107/s2053230x15010572] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/01/2015] [Indexed: 11/10/2022] Open
Abstract
Aspartate racemase catalyzes the interconversion between L-aspartate and D-aspartate and belongs to the PLP-independent racemases. The enzyme from the lactic acid bacterium Lactobacillus sakei NBRC 15893, isolated from kimoto, is considered to be involved in D-aspartate synthesis during the brewing process of Japanese sake at low temperatures. The enzyme was crystallized at 293 K by the sitting-drop vapour-diffusion method using 25%(v/v) PEG MME 550, 5%(v/v) 2-propanol. The crystal belonged to space group P3121, with unit-cell parameters a = b = 104.68, c = 97.29 Å, and diffracted to 2.6 Å resolution. Structure determination is under way.
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Affiliation(s)
- Tomomi Fujii
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takae Yamauchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Makoto Ishiyama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshitaka Gogami
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Tadao Oikawa
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yasuo Hata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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40
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Cui Y, Jiang Z, Sun J, Yu J, Li M, Li M, Liu M, Guo X. Enantiomeric purity determination of (l)-amino acids with pre-column derivatization and chiral stationary phase: Development and validation of the method. Food Chem 2014; 158:401-7. [DOI: 10.1016/j.foodchem.2014.02.133] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 02/13/2014] [Accepted: 02/23/2014] [Indexed: 11/28/2022]
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41
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Fradi I, Farcas E, Saïd AB, Yans ML, Lamalle C, Somsen GW, Prior A, de Jong GJ, Kallel M, Crommen J, Servais AC, Fillet M. In-capillary derivatization with (-)-1-(9-fluorenyl)ethyl chloroformate as chiral labeling agent for the electrophoretic separation of amino acids. J Chromatogr A 2014; 1363:338-47. [PMID: 25082527 DOI: 10.1016/j.chroma.2014.07.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/03/2014] [Accepted: 07/09/2014] [Indexed: 11/25/2022]
Abstract
An original micellar electrokinetic chromatography (MEKC) method using in-capillary derivatization with a chiral labeling reagent was developed for the separation of amino acid (AA) derivatives. The potential of (-)-1-(9-fluorenyl)-ethyl chloroformate (FLEC) as in-capillary derivatization agent is described for the first time. Several parameters for in-capillary derivatization and subsequent MEKC separation were systematically investigated using experimental designs. Firstly experimental conditions for in-capillary derivatization were optimized using face-centered central composite design (FCCD). Mixing voltage and time as well as concentration of the labeling solution were investigated. Efficient labeling was achieved by sequential injection of AAs and FLEC labeling solution followed by the application of a voltage of 0.2 kV for 570 s. The background electrolyte (BGE) composition was then optimized in order to achieve selectivity. A FCCD was performed with two factors, namely the sodium dodecyl sulfate (SDS) concentration and the percentage of propan-2-ol (IPA). The separation of 12 pairs of derivatized AA (FLEC-AA) diastereomers was achieved with resolution values comprised between 3 and 20. Furthermore, an efficient derivatization and separation of 29 FLEC-AA derivatives were achieved in a single run using a buffer made up of 40 mM sodium tetraborate, 21 mM SDS and 8.5% IPA. The method was successfully applied to the analysis of spiked artificial cerebrospinal fluid (aCSF) sample.
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Affiliation(s)
- Ines Fradi
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium; Laboratory of Chemical, Galenical and Pharmacological Drug Development, Faculty of Pharmacy, University of Monastir, 5000 Monastir, Tunisia; Drug Control National Laboratory, Tunis, Tunisia
| | - Elena Farcas
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium
| | - Azza Ben Saïd
- Laboratory of Chemical, Galenical and Pharmacological Drug Development, Faculty of Pharmacy, University of Monastir, 5000 Monastir, Tunisia
| | - Marie-Laure Yans
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium
| | - Caroline Lamalle
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium
| | - Govert W Somsen
- Department of Chemistry and Pharmaceutical Sciences, University of Amsterdam, The Netherlands
| | - Amir Prior
- Department of Chemistry and Pharmaceutical Sciences, University of Amsterdam, The Netherlands
| | - Gerhardus J de Jong
- Department of Chemistry and Pharmaceutical Sciences, University of Amsterdam, The Netherlands
| | - Mohamed Kallel
- Laboratory of Chemical, Galenical and Pharmacological Drug Development, Faculty of Pharmacy, University of Monastir, 5000 Monastir, Tunisia
| | - Jacques Crommen
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium
| | - Anne-Catherine Servais
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium
| | - Marianne Fillet
- Laboratory of Analytical Pharmaceutical Chemistry, Dept. of Pharmaceutical Sciences, CIRM, University of Liège, CHU, B36, B-4000 Liège 1, Belgium.
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42
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Yuan LF, He YJ, Zhao H, Zhou Y, Gu P. Colorimetric detection of d-amino acids based on anti-aggregation of gold nanoparticles. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Akita H, Imaizumi Y, Suzuki H, Doi K, Ohshima T. Spectrophotometric assay of D-isoleucine using an artificially created D-amino acid dehydrogenase. Biotechnol Lett 2014; 36:2245-8. [PMID: 24966047 DOI: 10.1007/s10529-014-1597-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 06/19/2014] [Indexed: 01/03/2023]
Abstract
D-isoleucine (D-Ile) can be assayed using chiral chromatography but the availability of that method is limited by the necessity for special expertise and expensive equipment. We therefore developed a simple and specific colorimetric assay system for D-Ile determination using an artificially created NADP(+)-dependent D-amino acid dehydrogenase (DAADH). The system consists of two reaction steps: the first is the quantitative conversion of D-Ile to (3R)-2-oxo-3-methyl valerate by DAADH in which NADP(+) is converted to NADPH, while the second is chemical conversion of NADPH to reduced water-soluble Tetrazolium-3 via a redox mediator. D-Ile was determined from 1 to 50 µM, and the assay was unaffected by the presence of any of three other isomers (100 µM), alcohol and organic acids.
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Affiliation(s)
- Hironaga Akita
- Applied Molecular Microbiology and Biomass Chemistry Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan,
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44
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Chiral amino acid analysis of Japanese traditional Kurozu and the developmental changes during earthenware jar fermentation processes. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 966:187-92. [PMID: 24582151 DOI: 10.1016/j.jchromb.2014.01.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 01/22/2014] [Accepted: 01/23/2014] [Indexed: 02/08/2023]
Abstract
Enantioselective amino acid metabolome analysis of the Japanese traditional black vinegars (amber rice vinegar, Kurozu) was performed using two-dimensional high-performance liquid chromatography combining a microbore-monolithic ODS column and narrowbore-enantioselective columns. d-Amino acids, the enantiomers of widely observed l-amino acids, are currently paid attention as novel physiologically active substances, and the foodstuffs and beverages containing high amounts of d-amino acids are the subjects of interest. In the present study, the amino acid enantiomers were determined by two-dimensional HPLC techniques after pre-column fluorescence derivatization with 4-fluoro-7-nitro-2,1,3-benzoxadiazole. In the first dimension, the amino acid enantiomers are separated as their d plus l mixtures by the reversed-phase mode, then the d-amino acids and their l-counterparts are separately determined in the second dimension by the enantioselective columns. As a result, large amounts of d-Ala (800-4000nmol/mL), d-Asp (200-400nmol/mL) and d-Glu (150-500nmol/mL) were observed in some of the traditionally produced Kurozu vinegars. Relatively large or small amounts of d-Ser (50-100nmol/mL), d-Leu (10-50nmol/mL) and d-allo-Ile (less than 20nmol/mL) were also present in these samples. Developmental changes in the d-amino acid amounts during the fermentation and aging processes have also been investigated.
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45
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Mutaguchi Y, Ohmori T, Akano H, Doi K, Ohshima T. Distribution of D-amino acids in vinegars and involvement of lactic acid bacteria in the production of D-amino acids. SPRINGERPLUS 2013; 2:691. [PMID: 24422181 PMCID: PMC3884085 DOI: 10.1186/2193-1801-2-691] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 12/09/2013] [Indexed: 11/10/2022]
Abstract
Levels of free D-amino acids were compared in 11 vinegars produced from different sources or through different manufacturing processes. To analyze the D- and L-amino acids, the enantiomers were initially converted into diastereomers using pre-column derivatization with o-phthaldialdehyde plus N-acethyl-L-cysteine or N-tert-butyloxycarbonyl-L-cysteine. This was followed by separation of the resultant fluorescent isoindol derivatives on an octadecylsilyl stationary phase using ultra-performance liquid chromatography. The analyses showed that the total D-amino acid level in lactic fermented tomato vinegar was very high. Furthermore, analysis of the amino acids in tomato juice samples collected after alcoholic, lactic and acetic fermentation during the production of lactic fermented tomato vinegar showed clearly that lactic fermentation is responsible for the D-amino acids production; marked increases in D-amino acids were seen during lactic fermentation, but not during alcoholic or acetic fermentation. This suggests lactic acid bacteria have a greater ability to produce D-amino acids than yeast or acetic acid bacteria.
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Affiliation(s)
- Yuta Mutaguchi
- Department of Biomedical Engineering, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585 Japan
| | - Taketo Ohmori
- Department of Biomedical Engineering, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585 Japan
| | - Hirofumi Akano
- Central Research Institute of Mizkan Group Corporation, 2-6 Nakamura-cho, Handa, 475-0873 Japan
| | - Katsumi Doi
- Microbial Genetic Division Institute of Genetic Resources Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581 Japan
| | - Toshihisa Ohshima
- Department of Biomedical Engineering, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585 Japan
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46
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47
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Enantioseparation of 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate tagged amino acids and other zwitterionic compounds on cinchona-based chiral stationary phases. Anal Bioanal Chem 2013; 405:8105-20. [DOI: 10.1007/s00216-013-7121-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/27/2013] [Accepted: 06/05/2013] [Indexed: 11/25/2022]
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48
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Ilisz I, Aranyi A, Péter A. Chiral derivatizations applied for the separation of unusual amino acid enantiomers by liquid chromatography and related techniques. J Chromatogr A 2013; 1296:119-39. [PMID: 23598164 DOI: 10.1016/j.chroma.2013.03.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/14/2013] [Accepted: 03/14/2013] [Indexed: 12/25/2022]
Abstract
Amino acids are essential for life, and have many functions in metabolism. One particularly important function is to serve as the building blocks of peptides and proteins, giving rise complex three dimensional structures through disulfide bonds or crosslinked amino acids. Peptides are frequently cyclic and contain proteinogenic as well as nonproteinogenic amino acids in many instances. Since most of the proteinogenic α-amino acids contain at least one stereogenic center (with the exception of glycine), the stereoisomers of all these amino acids and the peptides in which they are to be found may possess differences in biological activity in living systems. The impetus for advances in chiral separation has been highest in the past 25 years and this still continues to be an area of high focus. The important analytical task of the separation of isomers is achieved mainly by chromatographic and electrophoretic methods. This paper reviews indirect separation approaches, i.e. derivatization reactions aimed at creating the basis for the chromatographic resolution of biologically and pharmaceutically important enantiomers of unusual amino acids and related compounds, with emphasis on the literature published from 1980s. The main aspects of the chiral derivatization of amino acids are discussed, i.e. derivatization on the amino group, transforming the molecules into covalently bonded diastereomeric derivatives through the use of homochiral derivatizing agents. The diastereomers formed (amides, urethanes, urea and thiourea derivatives, etc.) can be separated on achiral stationary phases. The applications are considered, and in some cases different derivatizing agents for the resolution of complex mixtures of proteinogenic d,l-amino acids, non-proteinogenic amino acids and peptides/amino acids from peptide syntheses or microorganisms are compared.
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Affiliation(s)
- István Ilisz
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
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Guo Y, Zhao Y, Lu D, Wu H, Fan M, Wei Y, Shuang S, Dong C. β-Cyclodextrin functionalized gold nanoparticles: characterization and its analytical application for l-tyrosine. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0296-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Mudiam MKR, Ratnasekhar C, Jain R, Saxena PN, Chauhan A, Murthy RC. Rapid and simultaneous determination of twenty amino acids in complex biological and food samples by solid-phase microextraction and gas chromatography-mass spectrometry with the aid of experimental design after ethyl chloroformate derivatization. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 907:56-64. [PMID: 22998980 DOI: 10.1016/j.jchromb.2012.08.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Revised: 08/23/2012] [Accepted: 08/24/2012] [Indexed: 11/29/2022]
Abstract
Amino acids play a vital role as intermediates in many important metabolic pathways such as the biosynthesis of nucleotides, vitamins and secondary metabolites. A sensitive and rapid analytical method has been proposed for the first time for the simultaneous determination of twenty amino acids using solid-phase microextraction (SPME). The protein samples were hydrolyzed by 6M HCl under microwave radiation for 120 min. Then the amino acids were derivatized by ethyl chloroformate (ECF) and the ethoxy carbonyl ethyl esters of amino acids formed were extracted using SPME by direct immersion. Finally the extracted analytes on the SPME fiber were desorbed at 260°C and analyzed by gas chromatography-mass spectrometer (GC-MS) in electron ionization mode. Factors which affect the SPME efficiency were screened by Plackett-Burmann design; most significant factors were optimized with response surface methodology. The optimum conditions for SPME are as follows: pH of 1.7, ionic strength of 733 mg, extraction time of 30 min and fiber of divinyl benzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS). The recovery of all the amino acids was found to be in the range of 89.17-100.98%. The limit of detection (LOD) of all derivatized amino acids in urine, hair and soybean was found to be in the range of 0.20-7.52 μg L(-1), 0.21-8.40 μg L(-1) and 0.18-5.62 μg L(-1), respectively. Finally, the proposed technique was successfully applied for the determination of amino acids in complex biological (hair, urine) and food samples (soybean). The method can find wide applications in the routine analysis of amino acids in any biological as well as food samples.
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Affiliation(s)
- Mohana Krishna Reddy Mudiam
- Analytical Chemistry Section, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, India.
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