1
|
Martínez-Noguera FJ, Alcaraz PE, Carlos-Vivas J, Marín-Pagán C. 8 weeks of 2 S-hesperidin prevents a decrease in pO 2 at submaximal intensity in amateur cyclists in off-season: randomized controlled trial. Food Funct 2023; 14:2750-2767. [PMID: 36857626 DOI: 10.1039/d2fo03007a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Although chronic supplementation with 2S-hesperidin has been shown to improve performance, to date, the possible mechanisms underlying this effect have not been explored. Therefore, the aim of this study was to assess whether changes in gasometry may be associated with improved performance after the intake of 2S-hesperidin (500 mg d-1, 8 weeks). Forty amateur cyclists (n = 20 2S-hesperidin, n = 20 placebo) performed a rectangular test, during which capillary blood samples were taken at the baseline, FatMax1, ventilatory threshold 1 and 2 (VT1 and VT2), power maximum (PMAX), FatMax2 and excess post-exercise O2 consumption (EPOC) to measure gasometry parameters. Significantly increased CO2 and tCO2 was found at FatMax1, VT1, FatMax2 and EPOC (p = <0.05) after 8 weeks of 2S-hesperidin ingestion. Conversely, the placebo group had a significant decrease in pO2 at VT2 (p = 0.04) during the rectangular test, with no changes in the 2S-hesperidin group. Therefore, chronic supplementation with 2S-hesperidin prevents decreases in pO2 at submaximal intensities in amateur cyclists in an off-season period.
Collapse
Affiliation(s)
- Francisco Javier Martínez-Noguera
- Research Center for High Performance Sport, Catholic University of Murcia, Campus de los Jerónimos N° 135, UCAM, 30107, Murcia, Spain.
| | - Pedro E Alcaraz
- Research Center for High Performance Sport, Catholic University of Murcia, Campus de los Jerónimos N° 135, UCAM, 30107, Murcia, Spain.
| | - Jorge Carlos-Vivas
- Health, Economy, Motricity and Education Research Group (HEME), Faculty of Sport Sciences, University of Extremadura, Avda. de Elvas, s/n., 06006, Badajoz, Spain.
| | - Cristian Marín-Pagán
- Research Center for High Performance Sport, Catholic University of Murcia, Campus de los Jerónimos N° 135, UCAM, 30107, Murcia, Spain.
| |
Collapse
|
2
|
Martínez-Noguera FJ, Alcaraz PE, Carlos-Vivas J, Marín-Pagán C. Chronic Supplementation of 2S-Hesperidin Improves Acid-Base Status and Decreases Lactate at FatMax, at Ventilatory Threshold 1 and 2 and after an Incremental Test in Amateur Cyclists. BIOLOGY 2022; 11:biology11050736. [PMID: 35625464 PMCID: PMC9138540 DOI: 10.3390/biology11050736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 11/30/2022]
Abstract
Simple Summary Currently, hesperidin is a molecule found mainly in citrus fruits and is being widely researched in the area of chronic disease, but also in the field of sports nutrition. Some studies have shown its antioxidant, anti-inflammatory, lipid and carbohydrate metabolism modulating effects, including the enhancement of nitric oxide synthesis. However, few human studies have demonstrated a positive effect of hesperidin intake, in particular 2S-hesperidin, on sports performance, particularly in anaerobic and aerobic tests. However, the biochemical mechanisms that may be responsible for this enhanced performance have not yet been described. Therefore, one of the aims of this study was to assess whether an eight-week intake of 2S-hesperidin can improve acid-base status and metabolic status (lactate and glucose) in an incremental test in amateur cyclists. The results showed that amateur cyclists chronically supplemented with 2S-hesperidin improved acid-base status and lactate at FatMax, ventilatory thresholds 1 and 2, and in the acute phase of recovery after maximal effort. Abstract Chronic supplementation with 2S-hesperidin improves performance; however, the mechanisms underlying this effect have not yet been explored. Therefore, the aim of this study was to assess whether changes in acid-base status may be associated with improved performance after 2S-hesperidin supplementation compared to microcellulose (placebo). Forty amateur cyclists (n = 20 per group) underwent a rectangular test where capillary blood samples were taken at baseline, FatMax1, VT1, VT2, PMAX, FatMax2 and EPOC to measure acid-base parameters. After eight weeks of 2S-hesperidin supplementation (500 mg/d) increased HCO3−, SBC, ABE (p ≤ 0.05) and decreased Lac were found at FatMax1, VT1, FatMax2 and EPOC (p ≤ 0.05), while decreased Lac at VT2 was found with a large effect size (ES = 1.15) compared to placebo. Significant group differences in the area under the curve were observed when comparing pre-post-intervention pH changes (p = 0.02) between groups. Chronic supplementation with 2S-hesperidin improved acid-base status and Lac, both at low-moderate and submaximal intensities, improving recovery after exercise-to-exhaustion in amateur cyclists.
Collapse
Affiliation(s)
- Francisco Javier Martínez-Noguera
- Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Campus de los Jerónimos Nº 135, 30107 Murcia, Spain; (P.E.A.); (C.M.-P.)
- Correspondence: ; Tel.: +34-968-278-566
| | - Pedro E. Alcaraz
- Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Campus de los Jerónimos Nº 135, 30107 Murcia, Spain; (P.E.A.); (C.M.-P.)
| | - Jorge Carlos-Vivas
- Health, Economy, Motricity and Education Research Group (HEME), Faculty of Sport Sciences, University of Extremadura, Avda. de Elvas, s/n., 06006 Badajoz, Spain;
| | - Cristian Marín-Pagán
- Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Campus de los Jerónimos Nº 135, 30107 Murcia, Spain; (P.E.A.); (C.M.-P.)
| |
Collapse
|
3
|
Ofoegbu SU. Comparative Gravimetric Studies on Carbon Steel Corrosion in Selected Fruit Juices and Acidic Chloride Media (HCl) at Different pH. MATERIALS 2021; 14:ma14164755. [PMID: 34443278 PMCID: PMC8400660 DOI: 10.3390/ma14164755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/06/2021] [Accepted: 08/17/2021] [Indexed: 11/16/2022]
Abstract
Food contamination due to metal corrosion and the consequent leakage of metals into foods is a problem. Understanding the mechanism(s) of metal corrosion in food media is vital to evaluating, mitigating, and predicting contamination levels. Fruit juices have been employed as model corrosive media to study the corrosion behaviour of metallic material in food media. Carbon steel corrosion in fresh juices of tomato, orange, pineapple, and lemon, as well as dilute hydrochloric acid solutions at varied pH, was studied using scanning electron microscopy, gravimetric and spectrophotometric techniques, and comparisons made between the corrosivity of these juices and mineral acids of comparable pH. The corrosion of carbon steel in fruit juices and HCl solutions manifests as a combination of uniform and pitting corrosion. Gravimetric data acquired after one hour of immersion at ambient temperature (22 °C) indicated corrosion rates of 0.86 mm yr-1 in tomato juice (pH ≈ 4.24), 1.81 mm yr-1 in pineapple juice (pH ≈ 3.94), 1.52 mm yr-1 in orange juice (pH ≈ 3.58), and 2.89 mm yr-1 in lemon juice (pH ≈ 2.22), compared to 2.19 mm yr-1 in 10-2 M HCl (pH ≈ 2.04), 0.38 mm yr-1 in 10-3 M HCl (pH ≈ 2.95), 0.17 mm yr-1 in 10-4 M HCl (pH ≈ 3.95), and 0.04 mm yr-1 in 10-5 M HCl (pH ≈ 4.98). The correlation of gravimetrically acquired corrosion data with post-exposure spectrophotometric analysis of fruit juices enabled de-convolution of iron contamination rates from carbon steel corrosion rates in fruit juices. Elemental iron contamination after 50 h of exposure to steel samples was much less than the values predicted from corrosion data (≈40%, 4.02%, 8.37%, and 9.55% for tomato, pineapple, orange, and lemon juices, respectively, relative to expected values from corrosion (weight loss) data). Tomato juice (pH ≈ 4.24) was the least corrosive to carbon steel compared to orange juice (pH ≈ 3.58) and pineapple juice (pH ≈ 3.94). The results confirm that though the fruit juices are acidic, they are generally much less corrosive to carbon steel compared to hydrochloric acid solutions of comparable pH. Differences in the corrosion behaviour of carbon steel in the juices and in the different mineral acid solutions are attributed to differences in the compositions and pH of the test media, the nature of the corrosion products formed, and their dissolution kinetics in the respective media. The observation of corrosion products (iron oxide/hydroxide) in some of the fruit juices (tomato, pineapple, and lemon juices) in the form of apparently hollow microspheres indicates the feasibility of using fruit juices and related wastes as "green solutions" for the room-temperature and hydrothermal synthesis of metal oxide/hydroxide particles.
Collapse
Affiliation(s)
- Stanley Udochukwu Ofoegbu
- Centre for Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
| |
Collapse
|
4
|
Dos Santos RV, Grillo G, Fonseca H, Stanisic D, Tasic L. Hesperetin as an inhibitor of the snake venom serine protease from Bothrops jararaca. Toxicon 2021; 198:64-72. [PMID: 33940046 DOI: 10.1016/j.toxicon.2021.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Abstract
The majority (90%) of the snakebite envenomation in Brazil accounts for Bothrops from the Viperidae family. Some snake venom serine proteases provoke blood coagulation in ophidian accident victims because of their fibrinolytic activity, one of those proteases from Bothrops jararaca (B. jararaca) has been chosen for this study. Our objectives were to isolate and characterize the target serine protease; isolate, purify, and characterize the orange bagasse flavone (hesperetin, Hst), and investigate the interactions between the targets, enzyme, and hesperetin. The purified serine protease was named BjSP24 because of its molecular mass and proteolytic activity. BjSP24 was folded and characterized using circular dichroism and showed low alpha-helix contents (7.7%). BjSP24 exhibited sequence similarity to other known snake venom serine proteases as measured in the enzyme tryptic peptides' LC-MS/MS run. Hesperetin was obtained within the expected yield and with the predominance of 2S isomer (82%). It acted as a mixed inhibitor for the serine protease (SVSP) from Bothrops jararaca snake venom observed in three different in vitro experiments, fluorescence, kinetics, and SSTD-NMR. It is still to determine if hesperetin might aid-in reverting the on site blood clotting problems just after snakebite accidents.
Collapse
Affiliation(s)
- Roney Vander Dos Santos
- Biological Chemistry Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Giovanna Grillo
- Biological Chemistry Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Henrique Fonseca
- Biological Chemistry Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Danijela Stanisic
- Biological Chemistry Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Ljubica Tasic
- Biological Chemistry Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil.
| |
Collapse
|
5
|
Singh V, Chahal TS, Grewal SK, Gill PS. Effect of fruit development stages on antioxidant properties and bioactive compounds in peel, pulp and juice of grapefruit varieties. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00841-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
6
|
Effects of 8 Weeks of 2S-Hesperidin Supplementation on Performance in Amateur Cyclists. Nutrients 2020; 12:nu12123911. [PMID: 33371483 PMCID: PMC7767530 DOI: 10.3390/nu12123911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 12/12/2022] Open
Abstract
2S-Hesperidin is a flavanone (flavonoid) found in high concentrations in citrus fruits. It has an antioxidant and anti-inflammatory effects, improving performance in animals. This study investigated the effects of chronic intake of an orange extract (2S-hesperidin) or placebo on non-oxidative/glycolytic and oxidative metabolism markers and performance markers in amateur cyclists. A double-blind, randomized, placebo-controlled trial was carried out between late September and December 2018. Forty amateur cyclists were randomized into two groups: one taking 500 mg/day 2S-hesperidin and the other taking 500 mg/day placebo (microcellulose) for eight weeks. All participants completed the study. An incremental test was used to evaluate performance, and a step test was used to measure oxygen consumption, carbon dioxide, efficiency and oxidation of carbohydrates and fat by indirect calorimetry. The anaerobic power (non-oxidative) was determined using Wingate tests (30 s). After eight weeks supplementation, there was an increase in the incremental test in estimated functional threshold power (FTP) (3.2%; p ≤ 0.05) and maximum power (2.7%; p ≤ 0.05) with 2S-hesperdin compared to placebo. In the step test, there was a decrease in VO2 (L/min) (−8.3%; p ≤ 0.01) and VO2R (mL/kg/min) (−8.9%; p ≤ 0.01) at VT2 in placebo. However, there were no differences between groups. In the Wingate test, there was a significant increase (p ≤ 0.05) in peak and relative power in both groups, but without differences between groups. Supplementation with an orange extract (2S-hesperdin) 500 mg/day improves estimated FTP and maximum power performance in amateur cyclists.
Collapse
|
7
|
Pal S, Ji G, Lgaz H, Chung IM, Prakash R. Lemon seeds as green coating material for mitigation of mild steel corrosion in acid media: Molecular dynamics simulations, quantum chemical calculations and electrochemical studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113797] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Zátopková R, Aturki Z, Bednář P. Stereoisomer separation of flavanones and flavanone-7-O-glycosides by means of nanoliquid chromatography employing derivatized β-cyclodextrins as mobile-phase additive. J Sep Sci 2020; 43:3382-3390. [PMID: 32543784 DOI: 10.1002/jssc.202000268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 11/06/2022]
Abstract
A nanoliquid chromatographic method for the stereoisomer separation of some flavanone aglycones and 7-O-glycosides has been proposed employing a C18 capillary column and a chiral mobile-phase additive such as cyclodextrin. The chiral separation of eriodictyol, naringenin, and hesperitin was obtained by addition of carboxymethyl-β-cyclodextrin to the mobile phase, whereas eriocitrin, naringin, narirutin, and hesperidin diastereoisomers were resolved by using sulfobutyl ether-β-cyclodextrin. The influence of the composition of the mobile phase, the length of the capillary column, and the flow rate on the chiral recognition were investigated. At optimum conditions, baseline separation for the selected aglycones and glycosylated forms were achieved with a mobile phase consisting of 50 mM sodium acetate buffer pH 3 and 30% methanol containing 20 mM of carboxymethyl-β-cyclodextrin and 10 mM of sulfobutyl ether-β-cyclodextrin, respectively. Precision, linearity, and sensitivity of the method were tested. Limits of detection and quantification for the studied flavanone glycosides were in the range 1.3-2.5 and 7.5-12.5 µg/mL, respectively. The method was used for the determination of the diastereomeric composition of the flavanone-7-O-glycosides in Citrus juices after solid-phase extraction procedure.
Collapse
Affiliation(s)
- Renata Zátopková
- Istituto per i Sistemi Biologici, Consiglio Nazionale delle Ricerche, Area della Ricerca di Roma I, Monterotondo, Rome, 00015, Italy.,Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, Olomouc, 771 46, Czech Republic
| | - Zeineb Aturki
- Istituto per i Sistemi Biologici, Consiglio Nazionale delle Ricerche, Area della Ricerca di Roma I, Monterotondo, Rome, 00015, Italy
| | - Petr Bednář
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, Olomouc, 771 46, Czech Republic
| |
Collapse
|
9
|
Aydın Yiğit, Yardım Y, Şentürk Z. Square-Wave Adsorptive Stripping Voltammetric Determination of Hesperidin Using a Boron-Doped Diamond Electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820050184] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
10
|
Metabolomics Elucidates Dose-Dependent Molecular Beneficial Effects of Hesperidin Supplementation in Rats Fed an Obesogenic Diet. Antioxidants (Basel) 2020; 9:antiox9010079. [PMID: 31963315 PMCID: PMC7023145 DOI: 10.3390/antiox9010079] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/07/2020] [Accepted: 01/14/2020] [Indexed: 02/07/2023] Open
Abstract
Metabolic syndrome (MetS) is a global epidemic concern. Polyphenols are proposed as good candidates for its prevention, although their mechanisms are not fully understood. The gut microbiota seems to play a key role in polyphenol beneficial effects. Here, we assessed the effects of the citrus polyphenol hesperidin combining an untargeted metabolomics approach, which has an inherent potential to elucidate the host-microbiome interplay, with extensive anthropometric and biochemical characterizations and integrating metabolomics results with our previous 16S rRNA bacterial sequencing data. The rats were fed either a standard or an obesogenic cafeteria diet (CAF) for 17 weeks. After nine weeks, rats were supplemented with vehicle; low- (H1), or high- (H2) hesperidin doses. CAF animals developed MetS features. Hesperidin supplementation in CAF rats decreased the total cholesterol, LDL-C, and free fatty acids. The highest hesperidin dose also ameliorated blood pressure, insulin sensitivity, and decreased markers of arterial stiffness and inflammation. Metabolomics revealed an improvement of the lipidomic profile, decreases in circulating amino acids, and lower excretions of inflammation- and oxidative stress-related metabolites. Bacteroidaceae increases in the CAF-H2 group paralleled higher excretions of microbial-derived metabolites. Overall, our results provide detailed insights into the molecular effects of hesperidin on MetS and suggest that it is a promising prebiotic for the treatment of MetS and related conditions.
Collapse
|
11
|
Martínez-Noguera FJ, Marín-Pagán C, Carlos-Vivas J, Rubio-Arias JA, Alcaraz PE. Acute Effects of Hesperidin in Oxidant/Antioxidant State Markers and Performance in Amateur Cyclists. Nutrients 2019; 11:nu11081898. [PMID: 31416212 PMCID: PMC6723516 DOI: 10.3390/nu11081898] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/07/2019] [Accepted: 08/13/2019] [Indexed: 12/19/2022] Open
Abstract
Human and animal studies have shown that Hesperidin has the ability to modulate antioxidant and inflammatory state and to improve aerobic performance. The main objective of this study was to assess whether the acute intake of 500 mg of 2S-Hesperidin (Cardiose®) improves antioxidant status, metabolism, and athletic performance, during and after a rectangular test (aerobic and anaerobic effort). For this, a crossover design was used in 15 cyclists (>1 year of training), with one week of washout between placebo and Cardiose® supplementation. After the intervention, significant differences in average power (+2.27%, p = 0.023), maximum speed (+3.23%, p = 0.043) and total energy (∑ 4 sprint test) (+2.64%, p = 0.028) between Cardiose® and placebo were found in the best data of the repeated sprint test. Small changes were also observed in the activity of catalase, superoxide dismutase, reduced glutathione concentration and oxidized/reduced glutathione (GSSG/GSH) ratio, as well as the lipoperoxidation products (thiobarbituric acid reactive substances; TBARS), at different points of the rectangular test, although not significant. Our findings showed improvements in anaerobic performance after Cardiose® intake, but not in placebo, suggesting the potential benefits of using Cardiose® in sports with a high anaerobic component.
Collapse
Affiliation(s)
| | - Cristian Marín-Pagán
- Research Center for High Performance Sport, Catholic University of Murcia, 30107 Murcia, Spain.
| | - Jorge Carlos-Vivas
- Research Center for High Performance Sport, Catholic University of Murcia, 30107 Murcia, Spain
| | | | - Pedro E Alcaraz
- Faculty of Sport, Research Center for High Performance Sport, Catholic University of Murcia Catholic University of Murcia, 30107 Murcia, Spain
| |
Collapse
|
12
|
Uchiyama H, Kadota K, Nakanishi A, Tandia M, Tozuka Y. A simple blending with α-glycosylated naringin produces enhanced solubility and absorption of pranlukast hemihydrate. Int J Pharm 2019; 567:118490. [DOI: 10.1016/j.ijpharm.2019.118490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/20/2019] [Accepted: 06/30/2019] [Indexed: 10/26/2022]
|
13
|
Yao H, Su W, Lin L, Pan W, Zeng X, Li P. Comprehensive investigation into the interconversion of C-2 diastereomers of naringin. Chirality 2018; 30:652-660. [PMID: 29443426 DOI: 10.1002/chir.22830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/15/2018] [Indexed: 01/20/2023]
Abstract
Naringin is a flavanone that widely presents on daily diet and traditional medicinal materials. The ratios of naringin C-2 diastereomers are found different in reported samples, thus suspiciously leading to various functions. In this study, we measured the interconversion of C-2 diastereomers intensively with ultimate high-performance liquid chromatography and circular dichroism spectra. We examined the diastereomeric naringins in fresh citrus fruit, Huajuhong decoction pieces, and naringin tablet; evaluated the impact of tablet production procedures in factory; and monitored the rapid racemization in incubation. The results not only confirmed that enzyme, temperature, and pH condition could influence the interconversion but also demonstrated that diverse ratios of diastereomers showed limited influence on metabolic behaviors of naringin in the blood, which consequently cause comparable bioactivities. This study could provide comprehensive understanding of diastereomeric interconversion and provide useful reference for drug development.
Collapse
Affiliation(s)
- Hongliang Yao
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China
| | - Weiwei Su
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China
| | - Linhuo Lin
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wenjun Pan
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xuan Zeng
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Panlin Li
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-evaluation of Post-marketed TCM, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
14
|
Sharma K, Mahato N, Lee YR. Extraction, characterization and biological activity of citrus flavonoids. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0027] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
Citrus is one of the largest and most popular fruit crops commercially grown across the globe. It is not only important in terms of economy but is also popular for its nutritional benefits to human and farm animals. Citrus is available in several varieties, all with attractive colors. It is consumed either fresh or in processed form. After processing, approximately 50% of the fruit remains unconsumed and discarded as waste. The latter includes fruit pith residue, peels and seeds. Direct disposal of these wastes to the environment causes serious problems as these contain bioactive compounds. Release of these bioactive compounds to the open landfills cause bad odor and spread of diseases, and disposal to water bodies or seepage to the underground water table deteriorates water quality and harms aquatic life. In this regard, a number of research are being focused on the development of better reuse methods to obtain value-added phytochemicals as well as for safe disposal. The important phytochemicals obtained from citrus include essential oils, flavonoids, citric acid, pectin, etc., which have now become popular topics in industrial research, food and synthetic chemistry. The present article reviews recent advances in exploring the effects of flavonoids obtained from citrus wastes, the extraction procedure and their usage in view of various health benefits.
Collapse
Affiliation(s)
- Kavita Sharma
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Neelima Mahato
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| |
Collapse
|
15
|
|
16
|
Teradal NL, Satpati AK, Seetharamappa J. A facile one-pot hydrothermal synthesis of tin sulfide-decorated reduced graphene oxide nanoribbons and its sensing application for a flavanone naringenin. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
17
|
Wang L, Wang Q, Sheng K, Li G, Ye B. A new graphene nanocomposite modified electrode as efficient voltammetric sensor for determination of eriocitrin. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.11.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
18
|
Baranowska I, Hejniak J, Magiera S. Simultaneous Chiral Separation of Flavanone, Naringenin, and Hesperetin Enantiomers by RP-UHPLC-DAD. Chirality 2015; 28:147-52. [DOI: 10.1002/chir.22559] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/05/2015] [Accepted: 11/10/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Irena Baranowska
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry; Silesian University of Technology; Gliwice Poland
| | - Judyta Hejniak
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry; Silesian University of Technology; Gliwice Poland
| | - Sylwia Magiera
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry; Silesian University of Technology; Gliwice Poland
| |
Collapse
|
19
|
Król-Kogus B, Głód D, Krauze-Baranowska M, Matławska I. Application of one- and two-dimensional high-performance liquid chromatography methodologies for the analysis of C-glycosylflavones from fenugreek seeds. J Chromatogr A 2014; 1367:48-56. [DOI: 10.1016/j.chroma.2014.09.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 09/12/2014] [Accepted: 09/16/2014] [Indexed: 01/31/2023]
|
20
|
Shah NNAK, Rahman RA, Shamsuddin R, Adzahan NM. Effects of pectinase clarification treatment on phenolic compounds of pummelo (Citrus grandis l. Osbeck) fruit juice. Journal of Food Science and Technology 2014; 52:5057-65. [PMID: 26243926 DOI: 10.1007/s13197-014-1554-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/13/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
Abstract
The purpose of this study is to investigate the changes occured on phenolic compounds between two Malaysian varieties of pummelo fruit juice: Ledang (PO55) and Tambun (PO52) post-enzymatic clarification. The changes in polyphenols composition were monitored using High Performance Liquid Chromatography Diode Array Detection and Folin Ciocalteu's method. Clarification treatment of pummelo fruit juice with a commercial pectinase was optimized based on incubation temperature, time and enzyme concentration. Both varieties of pummelo fruit juice were treated with different optimized variables which produced the highest clarities with the least effect to the juice physical quality. Tambun variety was found to have significantly more total phenolic compounds (p <0.05) in comparison to Ledang variety, possibly due to the amount of naringin. Three types of hydroxycinnamic acids (chlorogenic, caffeic and coumaric acid) and three compounds of flavanones (naringin, hesperidin and narirutin) were found in both fruit juices, where naringin and chlorogenic acid were the major contributor to the total phenolic content. Naringin, which gave out bitter aftertaste to the juice, was found to decrease, 1.6 and 0.59 % reduction in Ledang and Tambun respectively, post-enzymatic treatment. The decrease in naringin, albeit nominal, could be a potential benefit to the juice production in reducing the bitterness of the juice. Post-enzymatic analysis furthermore resulted in no significance differences (p <0.05) on the total phenolic compounds of both varieties. This study in summary provides a compositional database for Malaysian pummelo fruit juice of various phenolic compounds, which can provide useful information for evaluating the authenticity and the health benefits from the juice.
Collapse
Affiliation(s)
- Nor Nadiah Abdul Karim Shah
- Department of Process & Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Russly Abdul Rahman
- Department of Process & Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia ; Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia ; Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Rosnah Shamsuddin
- Department of Process & Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Noranizan Mohd Adzahan
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| |
Collapse
|
21
|
Rocco A, Fanali C, Dugo L, Mondello L. A nano-LC/UV method for the analysis of principal phenolic compounds in commercial citrus juices and evaluation of antioxidant potential. Electrophoresis 2014; 35:1701-8. [DOI: 10.1002/elps.201300621] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 01/15/2014] [Accepted: 01/17/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Anna Rocco
- Istituto di Metodologie Chimiche; Consiglio Nazionale delle Ricerche; Monterotondo Italy
| | - Chiara Fanali
- Centro Integrato di Ricerca (C.I.R.); Campus-Biomedico University; Via Álvaro del Portillo; Roma Italy
| | - Laura Dugo
- Centro Integrato di Ricerca (C.I.R.); Campus-Biomedico University; Via Álvaro del Portillo; Roma Italy
| | - Luigi Mondello
- Centro Integrato di Ricerca (C.I.R.); Campus-Biomedico University; Via Álvaro del Portillo; Roma Italy
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute; University of Messina; viale Annunziata; Messina Italy
| |
Collapse
|
22
|
Development and Validation of Liquid Chromatographic Method for Estimation of Naringin in Nanoformulation. JOURNAL OF PHARMACEUTICS 2014; 2014:864901. [PMID: 26556205 PMCID: PMC4590809 DOI: 10.1155/2014/864901] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 12/20/2013] [Accepted: 12/26/2013] [Indexed: 11/18/2022]
Abstract
A simple, precise, accurate, rapid, and sensitive reverse phase high performance liquid chromatography (RP-HPLC) method with UV detection has been developed and validated for quantification of naringin (NAR) in novel pharmaceutical formulation. NAR is a polyphenolic flavonoid present in most of the citrus plants having variety of pharmacological activities. Method optimization was carried out by considering the various parameters such as effect of pH and column. The analyte was separated by employing a C18 (250.0 × 4.6 mm, 5 μm) column at ambient temperature in isocratic conditions using phosphate buffer pH 3.5: acetonitrile (75 : 25% v/v) as mobile phase pumped at a flow rate of 1.0 mL/min. UV detection was carried out at 282 nm. The developed method was validated according to ICH guidelines Q2(R1). The method was found to be precise and accurate on statistical evaluation with a linearity range of 0.1 to 20.0 μg/mL for NAR. The intra- and interday precision studies showed good reproducibility with coefficients of variation (CV) less than 1.0%. The mean recovery of NAR was found to be 99.33 ± 0.16%. The proposed method was found to be highly accurate, sensitive, and robust. The proposed liquid chromatographic method was successfully employed for the routine analysis of said compound in developed novel nanopharmaceuticals. The presence of excipients did not show any interference on the determination of NAR, indicating method specificity.
Collapse
|
23
|
Lyu JH, Lee HT. Effects of dried Citrus unshiu peels on gastrointestinal motility in rodents. Arch Pharm Res 2013; 36:641-8. [PMID: 23463336 DOI: 10.1007/s12272-013-0080-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 02/21/2013] [Indexed: 12/21/2022]
Abstract
Aqueous extracts of the dried mature (ANP-W) and immature Citrus unshiu peels (CUP-W) have been used as a traditional folk medicine for the treatment of gastrointestinal (GI) motility disorders in Korea. In the present study, neither ANP-W nor CUP-W exhibited significant toxicity even at an oral dose of 5 g/kg to mice. The effects of ANP-W and CUP-W on GI motor function were investigated by measuring the intestinal transit rate (ITR) of Evans blue in normal mice and rats with experimental GI motility dysfunctions (GMDs). In normal mice, the ITR was significantly increased by ANP-W (0.1-1 g/kg) in a dose dependent manner, whereas CUP-W elicited no significant change. GMD was induced by appropriate surgery or an intraperitoneal injection of acetic acid to the rats. The ITR in the GMD rats was significantly retarded compared to that in normal rats. However, the retardation was significantly inhibited by ANP-W (0.1-1 g/kg) in a dose dependent manner. The above results suggest that ANP-W has the potential for development as a prokinetic agent that may prevent or alleviate GMD in human patients.
Collapse
Affiliation(s)
- Ju Hyeong Lyu
- Department of Life Science and Biotechnology, College of Natural Sciences, Dong-eui University, Busan, 614-714, Korea
| | | |
Collapse
|
24
|
Urpi-Sarda M, Rothwell J, Morand C, Manach C. Bioavailability of Flavanones. OXIDATIVE STRESS AND DISEASE 2012. [DOI: 10.1201/b11872-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
25
|
Abstract
Two-dimensional liquid chromatography (2DLC) is an important technology for the separation and analysis of complex samples. Liquiritin, an important active component in licorice, was chosen as the target compound and it was separated by three kinds of off-line 2DLC, i.e. size exclusion chromatography × reversed phase chromatography, normal phase × reversed phase chromatography and reversed phase chromatography × reversed phase chromatography (SEC×RP, NP×RP and RP×RP). The chromatographic conditions were selected and the 2D systems were combined. The results show that it is feasible to separate Liquiritin from licorice extract using 2DLC. Among the 2D modes mentioned above, the highest purity of Liquiritin was obtained in the RP×RP mode, and the concentration of Liquiritin was increased most significantly in the NP×RP mode.
Collapse
|
26
|
Lee SH, Cho EA, Lee KR, Jung SH. Enantioseparation of Physiologically Active Some Flavonoids by Liquid Chromatography-Electrospray-Tandem Mass Spectrometry Based on Noncovalent Interactions with β-Cyclodextrin. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.12.4415] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
27
|
Lévèques A, Actis-Goretta L, Rein MJ, Williamson G, Dionisi F, Giuffrida F. UPLC-MS/MS quantification of total hesperetin and hesperetin enantiomers in biological matrices. J Pharm Biomed Anal 2011; 57:1-6. [PMID: 21920690 DOI: 10.1016/j.jpba.2011.08.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 08/18/2011] [Accepted: 08/19/2011] [Indexed: 01/08/2023]
Abstract
Hesperidin (hesperetin-7-O-rutinoside), a flavonoid affecting vascular function, is abundant in citrus fruits and derived products such as juices. After oral administration, hesperidin is hydrolyzed by the colonic microbiota producing hesperetin-7-O-glucoside, the glucoside group is further cleaved and the resulting hesperetin is absorbed and metabolized. Flavanones have a chiral carbon generating (R)- and (S)-enantiomers, with potentially different biological activities. A rapid UPLC-MS/MS method for the analysis of (R)- and (S)-hesperetin enantiomers in human plasma and urine was developed and validated. Biological matrices were incubated with β-glucuronidase/sulfatase, and hesperetin was isolated by solid-phase extraction using 96-well plate mixed-mode cartridges having reversed-phase and anion-exchange functionalities. Racemic hesperetin was analyzed with a UPLC HSS T3 reversed phase column and hesperetin enantiomers with a HPLC Chiralpak IA-3 column using H(2)O with 0.1% CHOOH as solvent A and acetonitrile with 0.1% CHOOH as solvent B. The method was linear between 50 and 5000nM for racemic hesperetin in plasma and between 25 and 2500nM for (S)- and (R)-hesperetin in plasma. Linearity was achieved between 100 and 10,000nM for racemic hesperetin in urine and between 50 and 5000nM for (S)- and (R)-hesperetin in urine. Values of repeatability and intermediate reproducibility for racemic hesperetin and enantiomers in plasma and urine were below 15% of deviation in general, and maximum 20% for the lowest concentrations. In addition, the method was applied for the quantification of total hesperetin and of hesperetin enantiomers in human plasma and urine samples, obtained after oral ingestion of purified hesperetin-7-O-glucoside. In conclusion, the developed and validated method was sensitive, accurate and precise for the quantification of enantiomers of hesperetin in biological fluids.
Collapse
Affiliation(s)
- Antoine Lévèques
- Nutrient Bioavailability Group-BioAnalytical Science Department, Nestlé Research Center, Nestec Ltd., Vers-Chez-les-Blanc, 1000 Lausanne, Switzerland
| | | | | | | | | | | |
Collapse
|
28
|
Kelebek H, Selli S. Determination of volatile, phenolic, organic acid and sugar components in a Turkish cv. Dortyol (Citrus sinensis L. Osbeck) orange juice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2011; 91:1855-1862. [PMID: 21480267 DOI: 10.1002/jsfa.4396] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 01/21/2011] [Accepted: 02/18/2011] [Indexed: 05/26/2023]
Abstract
BACKGROUND Orange flavour is the results of a natural combination of volatile compounds in a well-balanced system including sugars, acids and phenolic compounds. This paper reports the results of the first determination of aroma, organic acids, sugars, and phenolic components in Dortyol yerli orange juices. RESULTS A total of 58 volatile components, including esters (nine), terpenes (19), terpenols (13), aldehydes (two), ketones (three), alcohols (four) and acids (eight) were identified and quantified in Dortyol yerli orange juice by GC-FID and GC-MS. Organic acids, sugars and phenolic compositions were also determined by HPLC methods. The major organic acid and sugar found were citric acid and sucrose, respectively. With regard to phenolics, 14 compounds were identified and quantified in the orange juice. CONCLUSION Terpenes and terpenols were found as the main types of volatile components in Dortyol yerli orange juice. In terms of aroma contribution to orange juice, 12 compounds were prominent based on the odour activity values (OAVs). The highest OAV values were recorded for ethyl butanoate, nootkatone, linalool and DL-limonene. When we compare the obtained results of cv. Dortyol orange juice with the other orange juice varieties, the composition of Dortyol orange juice was similar to Valencia and Navel orange juices.
Collapse
Affiliation(s)
- Hasim Kelebek
- University of Adiyaman, Adiyaman Vocational School, Department of Food Technology, 02040 Adiyaman, Turkey
| | | |
Collapse
|
29
|
Abstract
MS has evolved as a critical component in metabolomics, which seeks to answer biological questions through large-scale qualitative and quantitative analyses of the metabolome. MS-based metabolomics techniques offer an excellent combination of sensitivity and selectivity, and they have become an indispensable platform in biology and metabolomics. In this minireview, various MS technologies used in metabolomics are briefly discussed, and future needs are suggested.
Collapse
Affiliation(s)
- Zhentian Lei
- From the Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, Oklahoma 73402
| | - David V. Huhman
- From the Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, Oklahoma 73402
| | - Lloyd W. Sumner
- From the Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, Oklahoma 73402
| |
Collapse
|
30
|
Dugo P, Kumm T, Cacciola F, Dugo G, Mondello L. Multidimensional Liquid Chromatographic Separations Applied to the Analysis of Food Samples. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826070802128888] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- P. Dugo
- a Dipartimento di Scienze degli Alimenti e dell'Ambiente, Facoltà di Scienze MM.FF.NN. , Università di Messina , Salita Sperone, 98166, Messina, Italy
| | - T. Kumm
- b Dipartimento Farmaco-chimico, Facoltà di Farmacia , Università di Messina , Messina, Italy
| | - F. Cacciola
- b Dipartimento Farmaco-chimico, Facoltà di Farmacia , Università di Messina , Messina, Italy
| | - G. Dugo
- b Dipartimento Farmaco-chimico, Facoltà di Farmacia , Università di Messina , Messina, Italy
| | - L. Mondello
- b Dipartimento Farmaco-chimico, Facoltà di Farmacia , Università di Messina , Messina, Italy
| |
Collapse
|
31
|
Belboukhari N, Cheriti A, Roussel C, Vanthuyne N. Chiral separation of hesperidin and naringin and its analysis in a butanol extract ofLauneae arborescens. Nat Prod Res 2010; 24:669-81. [DOI: 10.1080/14786410903178376] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
32
|
Multidimensional chromatography in food analysis. J Chromatogr A 2009; 1216:7110-29. [DOI: 10.1016/j.chroma.2009.08.014] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 08/06/2009] [Accepted: 08/10/2009] [Indexed: 02/03/2023]
|
33
|
Zheng G, Yang D, Wang D, Zhou F, Yang X, Jiang L. Simultaneous determination of five bioactive flavonoids in pericarpium Citri reticulatae from china by high-performance liquid chromatography with dual wavelength detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:6552-6557. [PMID: 19722565 DOI: 10.1021/jf901225e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
To evaluate the quality of Pericarpium Citri Reticulatae from China, a new, simple, and accurate method involving high-performance liquid chromatography with dual wavelength detection was developed for the simultaneous determination of five bioactive flavonoids, hesperidin, nobiletin, 3,5,6,7,8,3',4'-heptamethoxyflavone, tangeretin, and 5-hydroxy-6,7,8,3',4'-pentamethoxyflavone for the first time. Under the optimal condition, analysis was performed on a Dikma Diamonsil C(18) column and gradient elution with a solvent system of acetonitrile and water at a flow rate of 1.0 mL/min and detected at 283 and 330 nm, respectively. All five calibration curves exhibited good linearity (R2 > 0.9997). The relative standard deviation values for intra- and interday precision were less than 5% with accuracies between 95.16% and 104.71%. The recoveries were in the range of 96.91-103.20%. The established method was successfully applied to determine above five flavonoids in 32 samples collected from different districts of China, and the results demonstrated that the method may be used as strong research tools for quality control of Pericarpium Citri Reticulatae and chemotaxonomic investigation in botanical sciences of Citrus species.
Collapse
Affiliation(s)
- Guodong Zheng
- Institute of Natural Product and Traditional Chinese Medicine, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | | | | | | | | | | |
Collapse
|
34
|
González-Molina E, Domínguez-Perles R, Moreno DA, García-Viguera C. Natural bioactive compounds of Citrus limon for food and health. J Pharm Biomed Anal 2009; 51:327-45. [PMID: 19748198 DOI: 10.1016/j.jpba.2009.07.027] [Citation(s) in RCA: 223] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 06/19/2009] [Accepted: 07/22/2009] [Indexed: 12/25/2022]
Abstract
Citrus genus is the most important fruit tree crop in the world and lemon is the third most important Citrus species. Several studies highlighted lemon as an important health-promoting fruit rich in phenolic compounds as well as vitamins, minerals, dietary fiber, essential oils and carotenoids. Lemon fruit has a strong commercial value for the fresh products market and food industry. Moreover, lemon productive networks generate high amounts of wastes and by-products that constitute an important source of bioactive compounds with potential for animal feed, manufactured foods, and health care. This review focuses on the phytochemistry and the analytical aspects of lemon compounds as well as on the importance for food industry and the relevance of Citrus limon for nutrition and health, bringing an overview of what is published on the bioactive compounds of this fruit.
Collapse
Affiliation(s)
- E González-Molina
- Lab Fitoquímica, Dept Ciéncia y Tecnología de los Alimentos, CEBAS-CSIC, Apdo 164, 30100, Espinardo, Murcia, Spain
| | | | | | | |
Collapse
|
35
|
HPLC determination of organic acids, sugars, phenolic compositions and antioxidant capacity of orange juice and orange wine made from a Turkish cv. Kozan. Microchem J 2009. [DOI: 10.1016/j.microc.2008.10.008] [Citation(s) in RCA: 267] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
36
|
Uchiyama N, Kim IH, Kikura-Hanajiri R, Kawahara N, Konishi T, Goda Y. HPLC separation of naringin, neohesperidin and their C-2 epimers in commercial samples and herbal medicines. J Pharm Biomed Anal 2008; 46:864-9. [PMID: 17532169 DOI: 10.1016/j.jpba.2007.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2006] [Revised: 04/04/2007] [Accepted: 04/05/2007] [Indexed: 11/17/2022]
Abstract
Flavanone glycosides, such as naringin and neohesperidin, are distributed in some Citrus species and have a chiral center in the C-2 position of the flavanone moiety. Naringin and neohesperidin (2S-form) were separated from the corresponding C-2 epimers (2R-epi-form) by normal-phase HPLC using a polysaccaride-derived chiral stationary phases (CSPs), CHIRALPAK IB. The analyses of commercial samples of naringin revealed that the relative ratios of naringin to the C-2 epimer were 29-89%. In the case of a commercial sample of neohesperidin, the relative ratio of the neohesperidin (2S-form) is 84%. The HPLC application to Citrus species used as crude drugs in Japan (Kijitsu, Kikoku and Tohi) showed that the relative ratios of naringin to the C-2 epimer were 75-93% in Kijitsu, 74-79% in Kikoku and 54-64% in Tohi. However, there is a quite small ratio of the (2R)-epi-neohesperidin in Citrus. This result suggested that the averages of relative ratio of (2S)-naringin in Citrus species reduced according to the maturity of fruits (Kijitsu<Kikoku<Tohi). Since the relative ratios of (2S)-naringin of dry extracts of 5 Kampo formulations (including Kijitsu or Kikoku) decreased to 42-54%, the conversion from naringin to the (2R)-epimer might be enhanced during the decoction process of the formulations.
Collapse
Affiliation(s)
- Nahoko Uchiyama
- National Institute of Health Sciences, Tokyo 158-8501, Japan
| | | | | | | | | | | |
Collapse
|
37
|
Kelebek H, Canbas A, Selli S. Determination of phenolic composition and antioxidant capacity of blood orange juices obtained from cvs. Moro and Sanguinello (Citrus sinensis (L.) Osbeck) grown in Turkey. Food Chem 2008. [DOI: 10.1016/j.foodchem.2007.10.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
Pan J, Zhang S, Yan L, Tai J, Xiao Q, Zou K, Zhou Y, Wu J. Separation of flavanone enantiomers and flavanone glucoside diastereomers from Balanophora involucrata Hook. f. by capillary electrophoresis and reversed-phase high-performance liquid chromatography on a C18 column. J Chromatogr A 2008; 1185:117-29. [PMID: 18291407 DOI: 10.1016/j.chroma.2008.01.049] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2007] [Revised: 12/28/2007] [Accepted: 01/16/2008] [Indexed: 11/30/2022]
Abstract
A pair of flavanone glucoside diastereomers, (2R)- and (2S)-eriodictyol-5-O-beta-d-glucopyranoside (1a, 1b), was successfully separated by RP-C(18) high-performance liquid chromatography from Balanophora involucrata Hook. f. Some other compounds, including a pair of flavanone enantiomers, (2R)- and (2S)-eriodictyol (2a, 2b), and a pair of flavanone glucoside diastereomers, (2R)- and (2S)-eriodictyol-7-O-beta-d-glucopyranoside(3a, 3b), were separated by capillary electrophoresis from the same plant. The absolute configurations at C-2 of 1a and 1b were determined based on their circular dichroism spectra. Enzymatic hydrolysis of 1a and 1b by beta-d-glucosidase afforded (2R)- and (2S)-eriodictyol, respectively, which were used as the authentic standards for co-elution to determine the migration order of the enantiomers, 2a and 2b. We also report the first example of identifying the migration order of 2a and 2b and resolving the separation of 3a and 3b by capillary electrophoresis. In addition, 1a was unambiguously characterized for the first time by NMR spectra.
Collapse
Affiliation(s)
- Jianyu Pan
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Ding L, Luo X, Tang F, Yuan J, Liu Q, Yao S. Simultaneous determination of flavonoid and alkaloid compounds in Citrus herbs by high-performance liquid chromatography-photodiode array detection-electrospray mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 857:202-9. [PMID: 17689302 DOI: 10.1016/j.jchromb.2007.07.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2007] [Revised: 07/06/2007] [Accepted: 07/09/2007] [Indexed: 11/18/2022]
Abstract
The major active biological constituents in Citrus herbs are flavonoids, especially hesperidin, naringin and alkaloids, mainly synephrine, with beneficial medical effects on human health. They are used as the markers to control the quality of Citrus herbs. In this paper, a new ion pairing chromatographic method was developed to exclude the most polar solute (synephrine) from the viod volume and to maintain selectivity between the two other solutes (hesperidin and naringin). Perfluorinated carboxylic acids, which are appropriate for MS detection due to their volatility, were used as ion-pairing agents. The problems of the synephrine separation, such as band tailing and low retention, were solved successfully by using perfluorinated carboxylic acids. The effect of heptafluorobutyric acid (HFBA) was the best in the three investigated perfluorinated carboxylic acids. For the flavanone glycosides, the influence of the perfluorinated acids on retention time was rather weak. The two different kinds of the analytes were separated satisfactorily in one run using an isocratic eluent and the total analysis time takes less than 10 min. The abundance of pseudomolecular ions was recorded using selected ion monitoring (SIM) mode of m/z 135.1, 273.1 and 303.1 for synephrine, naringin and hesperidin, respectively. The contents of hesperidin, naringin and synephrine in several Citrus herbs were simultaneously determined by the proposed method.
Collapse
Affiliation(s)
- Li Ding
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
| | | | | | | | | | | |
Collapse
|
40
|
Yáñez JA, Miranda ND, Remsberg CM, Ohgami Y, Davies NM. Stereospecific high-performance liquid chromatographic analysis of eriodictyol in urine. J Pharm Biomed Anal 2007; 43:255-62. [PMID: 16876977 DOI: 10.1016/j.jpba.2006.06.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2006] [Revised: 06/15/2006] [Accepted: 06/16/2006] [Indexed: 11/29/2022]
Abstract
A stereospecific method of analysis of eriodictyol [5,7,3',4'-tetrahydroxyflavanone] in biological fluids is necessary to study the kinetics of in vitro and in vivo metabolism, and tissue distribution in fruits and humans. A simple high-performance liquid chromatographic method was developed for the stereospecific determination of eriodictyol in rat and human urine. Separation was achieved on a Chiralpak OJ-RH column with UV detection at 288 nm. The stereospecific calibration curves were linear ranging from 0.5 to 100 microg/ml. The mean extraction efficiency was >98.8%. Precision of the assay was <15% (CV), and was within 12% at the limit of quantitation (0.5 microg/ml). Bias of the assay was lower than 8%, and was within 6% at the limit of quantitation. The assay was applied successfully to the urinary excretion of eriodictyol in rats and humans, and to the stereospecific quantification of eriodictyol in raw lemon juice, conventional and organic lemonade.
Collapse
Affiliation(s)
- Jaime A Yáñez
- College of Pharmacy, Department of Pharmaceutical Sciences and Pharmacology and Toxicology Graduate Program, Washington State University, Pullman, WA 99164-6534, USA
| | | | | | | | | |
Collapse
|
41
|
Kwon C, Park H, Jung S. Enantioseparation of some chiral flavanones using microbial cyclic beta-(1-->3),(1-->6)-glucans as novel chiral additives in capillary electrophoresis. Carbohydr Res 2006; 342:762-6. [PMID: 17234165 DOI: 10.1016/j.carres.2006.12.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2006] [Revised: 12/15/2006] [Accepted: 12/19/2006] [Indexed: 11/21/2022]
Abstract
Cyclic beta-(1-->3),(1-->6)-glucans, microbial cyclooligosaccharides produced by Bradyrhizobium japonicum USDA 110, were used as novel chiral additives for the enantiomeric separation of some flavanones such as eriodictyol, homoeriodictyol, hesperetin, naringenin, and isosakuranetin in capillary electrophoresis (CE). Among the flavanones, eriodictyol was separated with the highest resolution (R(s) 5.66) and selectivity factor (alpha 1.18) when 20mM cyclic beta-(1-->3),(1-->6)-glucans were added to the background electrolyte (BGE) at pH 8.3.
Collapse
Affiliation(s)
- Chanho Kwon
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, South Korea
| | | | | |
Collapse
|
42
|
Yáñez JA, Andrews PK, Davies NM. Methods of analysis and separation of chiral flavonoids. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 848:159-81. [PMID: 17113835 DOI: 10.1016/j.jchromb.2006.10.052] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2006] [Revised: 10/20/2006] [Accepted: 10/28/2006] [Indexed: 11/30/2022]
Abstract
Although the analysis of the enantiomers and epimers of chiral flavanones has been carried out for over 20 years, there often remains a deficit within the pharmaceutical, agricultural, and medical sciences to address this issue. Hence, despite increased interest in the potential therapeutic uses, plant physiology roles, and health-benefits of chiral flavanones, the importance of stereoselectivity in agricultural, nutrition, pharmacokinetic, pharmacodynamic, pharmacological activity and disposition has often been ignored. This review presents both the general principles that allow separation of chiral flavanones, and discusses both the advantages and disadvantages of the available chromatographic assay methods and procedures used to separately quantify flavanone enantiomers and epimers in biological matrices.
Collapse
Affiliation(s)
- Jaime A Yáñez
- College of Pharmacy, Department of Pharmaceutical Sciences and Pharmacology and Toxicology Graduate Program, Washington State University, Pullman, Washington 99164-6534, USA
| | | | | |
Collapse
|
43
|
Asztemborska M, Zukowski J. Determination of diastereomerization barrier of some flavanones by high-performance liquid chromatography methods. J Chromatogr A 2006; 1134:95-100. [PMID: 16970960 DOI: 10.1016/j.chroma.2006.08.068] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Revised: 08/18/2006] [Accepted: 08/25/2006] [Indexed: 11/17/2022]
Abstract
The rate constants and activation energy barriers DeltaG# of diastereomerization reaction of flavanones: naringin, narirutin, hesperidin and neohesperidin were determined. The stopped-flow HPLC (SFM-HPLC), dynamic HPLC (D-HPLC) and enantioselective HPLC combined with the classical kinetic method were applied for determination of these parameters. It was found that the rate constants of diastereomerization were about eight times higher for naringin and narirutin (1.9 x 10(-5) s(-1)) than for hesperidin and neohesperidin (2.4 x 10(-6) s(-1)). No significant differences in the rate of diastereomerization were found between neohesperidosides and corresponding rutinosides.
Collapse
Affiliation(s)
- Monika Asztemborska
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | | |
Collapse
|
44
|
Wistuba D, Trapp O, Gel-Moreto N, Galensa R, Schurig V. Stereoisomeric Separation of Flavanones and Flavanone-7-O-glycosides by Capillary Electrophoresis and Determination of Interconversion Barriers. Anal Chem 2006; 78:3424-33. [PMID: 16689546 DOI: 10.1021/ac0600499] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereoisomeric separation of several flavanones and flavanone-7-O-glycosides has been achieved with capillary electrophoresis by adding native cyclodextrins or cyclodextrin derivatives to the background electrolyte. As an alternative method, micellar electrokinetic chromatography with sodium cholate as a chiral surfactant has been used for the epimeric separation of two flavanone-7-O-glycosides. The effect of buffer systems containing mixtures of cyclodextrin with either sodium dodecyl sulfate or sodium cholate upon the chiral recognition of flavanones and flavanone-7-O-glycosides as well as the variation of the background electrolyte (concentration of buffer and surfactant, pH value, organic modifier), and its influence on the resolution factor Rs was investigated. Temperature- and pH-dependent enantiomerization or epimerization barriers of several flavanones (naringenin, homoeriodictyol) and flavanone-7-O-glycosides (naringin, neohesperidin, prunin, narirutin) in basic media (pH values of 9-11) have been observed. Interconversion profiles featuring characteristic plateau formation of the elution pattern were observed at high pH and evaluated with the simulation software ChromWin to determine rate constants k(T) and Eyring activation parameters, DeltaG#(T), DeltaH#, and DeltaS#.
Collapse
Affiliation(s)
- Dorothee Wistuba
- Institut für Organische Chemie, Universität Tübingen, 72076 Tübingen, Germany.
| | | | | | | | | |
Collapse
|
45
|
Xia J, Kotani A, Hakamata H, Kusu F. Determination of hesperidin in Pericarpium Citri Reticulatae by semi-micro HPLC with electrochemical detection. J Pharm Biomed Anal 2006; 41:1401-5. [PMID: 16580168 DOI: 10.1016/j.jpba.2006.02.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Revised: 02/15/2006] [Accepted: 02/21/2006] [Indexed: 10/24/2022]
Abstract
Determination of hesperidin contents in Pericarpium Citri Reticulatae was performed by a simple extraction with methanol and semi-micro high-performance liquid chromatography with electrochemical detection (muHPLC-ECD). Chromatography was performed using a microbore octadecylsilica (ODS) column, methanol-water-phosphoric acid (40:60:0.5, v/v/v), as a mobile phase and applied potential at +0.9 V versus Ag/AgCl. Peak heights were found linearly related to the concentrations of hesperidin injected 9.16 ng/ml to 3.06 microg/ml (r>0.999). The detection limit (S/N=3) was 3.06 ng/ml (15.3 pg). Hesperidin of 305 ng/ml was detected with a relative standard deviation (R.S.D.) of 0.79% (n=5). Hesperidin in Pericarpium Citri Reticulatae was extracted with methanol, diluted with the mobile phase, and injected into the muHPLC-ECD for determination. The hesperidin content of Pericarpium Citri Reticulatae from four different districts in China were determined with R.S.D. of 3.59%, 2.29%, 2.36%, and 2.32% (n=5), respectively. Recoveries of hesperidin from the four Pericarpium Citri Reticulatae sources were 100.3%, 99.83%, 100.7%, and 100.6%, respectively. This method is useful for the determination of hesperidin in Pericarpium Citri Reticulatae, and especially so for instances when samples are sparse.
Collapse
Affiliation(s)
- Jing Xia
- Department of Traditional Chinese Medicine, Shanghai Institute for Drug Control, No 615 Liuzhou Road, Shanghai 200233, China
| | | | | | | |
Collapse
|
46
|
Yang GF, Wang HB, Yang WC, Gao D, Zhan CG. Bioactive Permethrin/β-Cyclodextrin Inclusion Complex. J Phys Chem B 2006; 110:7044-8. [PMID: 16571020 DOI: 10.1021/jp056809l] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Permethrin is popularly used in a variety of therapeutic areas. However, the poor water solubility of permethrin seriously limits its wider clinical applications. The present study demonstrates that solubility of permethrin in aqueous solution can considerably increase in the presence of beta-cyclodextrin (beta-CD). Extensive experimental data along with computational modeling reveal the formation of stable permethrin/beta-CD inclusion complexes, including permethrin(beta-CD) and permethrin(beta-CD)2, through hydrophobic binding. Both permethrin(beta-CD) and permethrin(beta-CD)2 complexes coexisted in aqueous solution, and the ratio of the concentration of permethrin(beta-CD) complex to that of permethrin(beta-CD)2 complex was dependent on the concentration of beta-CD. The complexation of permethrin with beta-CD significantly improved the bioavailability of permethrin and, therefore, increased the bioactivity. The significant increase of the bioactivity of permethrin in the presence of beta-CD provides an effective approach to improve the practical use of permethrin in public health and agriculture.
Collapse
Affiliation(s)
- Guang-Fu Yang
- Key Laboratory of Pesticide and Chemical Biology of the Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | | | | | | | | |
Collapse
|
47
|
Weber B, Hartmann B, Stöckigt D, Schreiber K, Roloff M, Bertram HJ, Schmidt CO. Liquid chromatography/mass spectrometry and liquid chromatography/nuclear magnetic resonance as complementary analytical techniques for unambiguous identification of polymethoxylated flavones in residues from molecular distillation of orange peel oils (Citrus sinensis). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:274-8. [PMID: 16417279 DOI: 10.1021/jf051606f] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Liquid chromatography/mass spectrometry and liquid chromatography/nuclear magnetic resonance techniques with ultraviolet/diode array detection were used as complementary analytical tools for the reliable identification of polymethoxylated flavones in residues from molecular distillation of cold-pressed peel oils of Citrus sinensis. After development of a liquid chromatographic separation procedure, the presence of several polymethoxy flavones such as sinensetin, nobiletin, tangeretin, quercetogetin, heptamethoxyflavone, and other derivatives was unambiguously confirmed. In addition, proceranone, an acetylated tetranortriterpenoid with limonoid structure, was identified for the first time in citrus.
Collapse
Affiliation(s)
- Berthold Weber
- Symrise GmbH and Co. KG, Corporate Research Division, 37601 Holzminden, Germany.
| | | | | | | | | | | | | |
Collapse
|
48
|
Peng Y, Liu F, Ye J. Quantitative and qualitative analysis of flavonoid markers in Frucus aurantii of different geographical origin by capillary electrophoresis with electrochemical detection. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 830:224-30. [PMID: 16298176 DOI: 10.1016/j.jchromb.2005.10.043] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2005] [Accepted: 10/27/2005] [Indexed: 11/28/2022]
Abstract
A capillary electrophoresis with electrochemical detection (CE-ED) method was developed for the simultaneous determination of four major flavonoid markers (synephrine, naringin, hesperidin and naringenin) in Frucus aurantii of different geographical origin. Operated in a wall-jet configuration, a 300 microm diameter carbon disc electrode was used as the working electrode, which exhibits a good response at +0.85 V (versus saturated calomel electrode) for the analytes. Under the optimum conditions, the analytes were baseline separated within 20 min in a 80 mmol/L borax buffer (pH 8.45). The intra-day relative standard deviations (R.S.D.) and inter-day R.S.D.s were based on the analysis of the standard solution on the same day and on the following 6 consecutive days. The intra-day R.S.D.s ranged from 0.8% (naringin) to 3.6% (hesperidin). The inter-day R.S.D.s ranged from 1.2% (hesperidin) to 4.6% (naringenin). Calibration curves were linear in ranges between 0.05 and 1000 microg/mL for the markers. Limits of detection ranged from a low of 1 x 10(-8)g/mL (hesperidin) to a high of 5 x 10(-7)g/mL (naringin). The method was successfully used in the analysis of F. aurantii of different geographical origin with relatively simple extraction procedures, and the assay results were satisfactory.
Collapse
Affiliation(s)
- Youyuan Peng
- Department of Chemistry, Quanzhou Normal University, Quanzhou 362000, China.
| | | | | |
Collapse
|
49
|
Lee HT, Seo EK, Chung SJ, Shim CK. Prokinetic activity of an aqueous extract from dried immature fruit of Poncirus trifoliata (L.) Raf. JOURNAL OF ETHNOPHARMACOLOGY 2005; 102:131-6. [PMID: 16191468 DOI: 10.1016/j.jep.2005.05.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2004] [Revised: 04/24/2005] [Accepted: 05/15/2005] [Indexed: 05/04/2023]
Abstract
Aqueous extracts from dried immature fruit of Poncirus trifoliata Raf. (Rutaceae) (PF-W) are used as a traditional Korean folk medicine for the treatment of digestive dysfunction. In the present study, PF-W exhibited no significant toxicity even at a dose of 5 g/kg when orally administered to mice. The effect of PF-W on gastrointestinal (GI) motor function was investigated by examining its effect on the serum concentration of orally administered ranitidine, a putative indicator of GI motility, in human subjects. The area under the serum concentration-time curve and the peak serum concentration of ranitidine following an oral administration (300 mg/individual) were decreased by one half as the result of a predose (10 g/individual) of PF-W, except for the time to reach peak serum concentration and the serum half-life at the terminal phase of ranitidine. In rat studies, PF-W had no effect on the apparent permeability of ranitidine across the jejunum or the gastric emptying rate (GER) of phenol red. However, the transit time for charcoal in the intestine was significantly increased by the PF-W pretreatment. The above results are consistent with the hypothesis that PF-W has a unique prokinetic activity, which accelerates the transit of intestinal contents, but has no effect on the GER.
Collapse
Affiliation(s)
- Hyun-Tai Lee
- Department of Pharmaceutics, College of Pharmacy, Seoul National University, San 56-1, Shinlim-dong, Kwanak-gu, Seoul 151-742, Korea
| | | | | | | |
Collapse
|
50
|
Uchiyama N, Kim IH, Kawahara N, Goda Y. HPLC separation of hesperidin and the C-2 epimer in commercial hesperidin samples and herbal medicines. Chirality 2005; 17:373-7. [PMID: 15988744 DOI: 10.1002/chir.20175] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hesperidin (2S-form), the flavanone 7-O-glycoside, is the main constituent of some Citrus species. The peels of two Citrus species are used as a crude drug, Aurantii nobilis pericarpium, in the Japanese Pharmacopoeia and as components in Kampo formulae. Thus, HPLC analysis of hesperidin as a marker compound is needed for quality control of medicines. Hesperidin was separated from the corresponding C-2 epimer by normal-phase HPLC using a chiral column. Moreover, narirutin and neohesperidin were also separated from the corresponding C-2 epimer. The analyses of commercial hesperidin samples revealed that they contained the C-2 epimer and that the relative ratio of hesperidin to the epimer ranged from 92:8 to 59:41. The HPLC application to Citrus extracts suggested that naturally occurring hesperidin in Citrus has the 2S configuration; however, the dry extracts of rikkunshito and chotosan, which are Kampo formulations containing Aurantii nobilis pericarpium, were found to contain a considerable amount of the (2R)-epimer. These data suggest that the decoction process of the formulae partly converts hesperidin to the epimer. Because diastereomers differ from each other in physicochemical and biological activities, HPLC to separate hesperidin from the C-2 epimer should be introduced into the letter of approval for herbal medicines.
Collapse
|