1
|
Petibon F, Wiesenberg GLB. Characterization of complex photosynthetic pigment profiles in European deciduous tree leaves by sequential extraction and reversed-phase high-performance liquid chromatography. FRONTIERS IN PLANT SCIENCE 2022; 13:957606. [PMID: 36311078 PMCID: PMC9605812 DOI: 10.3389/fpls.2022.957606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
Leaf pigments, including chlorophylls and carotenoids, are important biochemical indicators of plant photosynthesis and photoprotection. In this study, we developed, optimized, and validated a sequential extraction and liquid chromatography-diode array detection method allowing for the simultaneous quantification of the main photosynthetic pigments, including chlorophyll a, chlorophyll b, β-carotene, lutein, neoxanthin, and the xanthophyll cycle (VAZ), as well as the characterization of plant pigment derivatives. Chromatographic separation was accomplished with the newest generation of core-shell columns revealing numerous pigment derivatives. The sequential extraction allowed for a better recovery of the main pigments (+25 % chlorophyll a, +30 % chlorophyll b, +42 % β-carotene, and 61% xanthophylls), and the characterization of ca. 5.3 times more pigment derivatives (i.e., up to 62 chlorophyll and carotenoid derivatives including isomers) than with a single-step extraction. A broad working range of concentrations (300-2,000 ng.mL-1) was achieved for most pigments and their derivatives and the limit of detection was as low as a few nanograms per milliliter. The method also showed adequate trueness (RSD < 1%) and intermediate precision (RSD < 5%). The method was developed and validated with spinach leaves and their extracts. The method was successfully performed on leaf pigment extracts of European deciduous tree species. Within a case study using Fagus sylvatica L. leaves, pigment derivatives revealed a high within-individual tree variability throughout the growing season that could not be detected using the main photosynthetic pigments alone, eventually showing that the method allowed for the monitoring of pigment dynamics at unprecedented detail.
Collapse
|
2
|
Interlaboratory exercise for the analysis of carotenoids and related compounds in dried mango fruit (Mangifera indica L.). J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
3
|
Kim SH, Lee YC. Plant-Derived Nanoscale-Encapsulated Antioxidants for Oral and Topical Uses: A Brief Review. Int J Mol Sci 2022; 23:ijms23073638. [PMID: 35409001 PMCID: PMC8998173 DOI: 10.3390/ijms23073638] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
Several plant-based nanoscale-encapsulated antioxidant compounds (rutin, myricetin, β-carotene, fisetin, lycopene, quercetin, genkwanin, lutein, resveratrol, eucalyptol, kaempferol, glabridin, pinene, and whole-plant bio-active compounds) are briefly introduced in this paper, along with their characteristics. Antioxidants’ bioavailability has become one of the main research topics in bio-nanomedicine. Two low patient compliance drug delivery pathways (namely, the oral and topical delivery routes), are described in detail in this paper, for nanoscale colloidal systems and gel formulations. Both routes and/or formulations seek to improve bioavailability and maximize the drug agents’ efficiency. Some well-known compounds have been robustly studied, but many remain elusive. The objective of this review is to discuss recent studies and advantages of nanoscale formulations of plant-derived antioxidant compounds.
Collapse
|
4
|
Dias MG, Borge GIA, Kljak K, Mandić AI, Mapelli-Brahm P, Olmedilla-Alonso B, Pintea AM, Ravasco F, Tumbas Šaponjac V, Sereikaitė J, Vargas-Murga L, Vulić JJ, Meléndez-Martínez AJ. European Database of Carotenoid Levels in Foods. Factors Affecting Carotenoid Content. Foods 2021; 10:foods10050912. [PMID: 33919309 PMCID: PMC8143354 DOI: 10.3390/foods10050912] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/07/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
Many studies indicate that diets including carotenoid-rich foods have positive effects on human health. Some of these compounds are precursors of the essential nutrient vitamin A. The present work is aimed at implementing a database of carotenoid contents of foods available in the European market. Factors affecting carotenoid content were also discussed. Analytical data available in peer-reviewed scientific literature from 1990 to 2018 and obtained by HPLC/UHPLC were considered. The database includes foods classified according to the FoodEx2 system and will benefit compilers, nutritionists and other professionals in areas related to food and human health. The results show the importance of food characterization to ensure its intercomparability, as large variations in carotenoid levels are observed between species and among varieties/cultivars/landraces. This highlights the significance of integrating nutritional criteria into agricultural choices and of promoting biodiversity. The uncertainty quantification associated with the measurements of the carotenoid content was very rarely evaluated in the literature consulted. According to the EuroFIR data quality evaluation system for food composition tables, the total data quality index mean was 24 in 35, reflecting efforts by researchers in the analytical methods, and less resources in the sampling plan documentation.
Collapse
Affiliation(s)
- M. Graça Dias
- Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016 Lisboa, Portugal; (M.G.D.); (F.R.)
| | - Grethe Iren A. Borge
- Nofima AS, Norwegian Institute of Food, Fisheries and Aquaculture Research, NO 1433 Ås, Norway;
| | - Kristina Kljak
- Department of Animal Nutrition, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10 000 Zagreb, Croatia;
| | - Anamarija I. Mandić
- Institute of Food Technology in Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Paula Mapelli-Brahm
- Food Colour & Quality Laboratory, Department of Nutrition & Food Science, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
| | | | - Adela M. Pintea
- Chemistry and Biochemistry Department, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania;
| | - Francisco Ravasco
- Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016 Lisboa, Portugal; (M.G.D.); (F.R.)
| | - Vesna Tumbas Šaponjac
- Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia; (V.T.Š.); (J.J.V.)
| | - Jolanta Sereikaitė
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania;
| | | | - Jelena J. Vulić
- Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia; (V.T.Š.); (J.J.V.)
| | - Antonio J. Meléndez-Martínez
- Food Colour & Quality Laboratory, Department of Nutrition & Food Science, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
- Correspondence:
| |
Collapse
|
5
|
Yalçın S, Uzun M, Karakaş Ö, Sözgen Başkan K, Okudan EŞ, Apak MR. Determination of Total Antioxidant Capacities of Algal Pigments in Seaweed by the Combination of High-Performance Liquid Chromatography (HPLC) with A Cupric Reducing Antioxidant Capacity (CUPRAC) Assay. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1855439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Sibel Yalçın
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Merve Uzun
- Institute of Graduate Students, Chemistry Department, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Özge Karakaş
- Institute of Graduate Students, Chemistry Department, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Kevser Sözgen Başkan
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Emine Şükran Okudan
- Faculty of Aquatic Sciences and Fisheries, Akdeniz University, Antalya, Turkey
| | - Mustafa Reşat Apak
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| |
Collapse
|
6
|
Interference of oleamide with analytical and bioassay results. Sci Rep 2020; 10:2163. [PMID: 32034225 PMCID: PMC7005802 DOI: 10.1038/s41598-020-59093-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/20/2020] [Indexed: 11/25/2022] Open
Abstract
During sample preparation and analysis, samples are coming in contact with different labware materials. By four unrelated analytical (phytochemical and pharmaceutical) case-studies and employing different analytical techniques, we demonstrated the potential misinterpretation of analytical results due to the use of contaminants-leaching labware during sample handling. Oleamide, a common polymer lubricant and a bioactive compound, was identified as a main analytical interference, leaching from different labware items into solvents, recognised as chemically compatible with the tested polymer material. Moreover, anti-inflammatory effect of oleamide at 100 μg mL−1 and considerable pro-inflammatory effect of the plastic syringe extractables (containing oleamide) at the same level were shown in a TLR4-based bioassay. Taking these results into account, together with the fact that oleamide can be a compound of natural origin, we would like to notify the professional public regarding the possible erroneous oleamide-related analytical and bioassay results due to the use of oleamide-leaching labware. Researchers are alerted to double check the real source of oleamide (labware or natural extract), which will prevent further reporting of false results. Analysis of procedural blanks with de-novo developed UHPLC-ESI-MS method is, among some other strategies, proposed for detection of oleamide interference and avoidance of misleading results of certain analyses.
Collapse
|
7
|
Marques-Hueso J, Jones TD, Watson DE, Ryspayeva A, Esfahani MN, Shuttleworth MP, Harris RA, Kay RW, Desmulliez MP. Spinach-based photo-catalyst for selective plating on polyimide-based substrates for micro-patterning circuitry. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2019.10.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
8
|
Japanese and Bohemian Knotweeds as Sustainable Sources of Carotenoids. PLANTS 2019; 8:plants8100384. [PMID: 31569417 PMCID: PMC6843863 DOI: 10.3390/plants8100384] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 02/07/2023]
Abstract
Japanese knotweed (Fallopia japonica Houtt.) and Bohemian knotweed (Fallopia x bohemica) are invasive alien plant species, causing great global ecological and economic damage. Mechanical excavation of plant material represents an effective containment method, but it is not economically and environmentally sustainable as it produces an excessive amount of waste. Thus, practical uses of these plants are actively being sought. In this study, we explored the carotenoid profiles and carotenoid content of mature (green) and senescing leaves of both knotweeds. Both plants showed similar pigment profiles. By means of high performance thin-layer chromatography with densitometry and high performance liquid chromatography coupled to photodiode array and mass spectrometric detector, 11 carotenoids (and their derivatives) and 4 chlorophylls were identified in green leaves, whereas 16 distinct carotenoids (free carotenoids and xanthophyll esters) were found in senescing leaves. Total carotenoid content in green leaves of Japanese knotweed and Bohemian knotweed (378 and 260 mg of lutein equivalent (LE)/100 g dry weight (DW), respectively) was comparable to that of spinach (384 mg LE/100 g DW), a well-known rich source of carotenoids. A much lower total carotenoid content was found for senescing leaves of Japanese and Bohemian knotweed (67 and 70 mg LE/100 g DW, respectively). Thus, green leaves of both studied knotweeds represent a rich and sustainable natural source of bioactive carotenoids. Exploitation of these invaders for the production of high value-added products should consequently promote their mechanical control.
Collapse
|
9
|
Optimization of a sustainable purification protocol for lutein and chlorophyll from spinach by-products by a saponification procedure using Box Behnken design and desirability function. FOOD AND BIOPRODUCTS PROCESSING 2019. [DOI: 10.1016/j.fbp.2019.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
10
|
An attempt to cast light into lutein extraction and its alkali optimization. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2018. [DOI: 10.1007/s11694-018-9928-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
11
|
Ahmed A, Skinley K, Herodotou S, Zhang H. Core-shell microspheres with porous nanostructured shells for liquid chromatography. J Sep Sci 2017; 41:99-124. [DOI: 10.1002/jssc.201700850] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/28/2017] [Accepted: 09/28/2017] [Indexed: 12/19/2022]
Affiliation(s)
| | | | | | - Haifei Zhang
- Department of Chemistry; University of Liverpool; Liverpool UK
| |
Collapse
|
12
|
Derrien M, Badr A, Gosselin A, Desjardins Y, Angers P. Optimization of a green process for the extraction of lutein and chlorophyll from spinach by-products using response surface methodology (RSM). Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.01.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
13
|
Zeb A, Nisar P. Effects of High Temperature Frying of Spinach Leaves in Sunflower Oil on Carotenoids, Chlorophylls, and Tocopherol Composition. Front Chem 2017; 5:19. [PMID: 28382299 PMCID: PMC5360722 DOI: 10.3389/fchem.2017.00019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 03/06/2017] [Indexed: 11/13/2022] Open
Abstract
Spinach is one of the highly consumed vegetable, with significant nutritional, and beneficial properties. This study revealed for the first time, the effects of high temperature frying on the carotenoids, chlorophylls, and tocopherol contents of spinach leaves. Spinach leaves were thermally processed in the sunflower oil for 15, 30, 45, and 60 min at 250°C. Reversed phase HPLC-DAD results revealed a total of eight carotenoids, four chlorophylls and α-tocopherol in the spinach leaves. Lutein, neoxanthin, violaxanthin, and β-carotene-5,6-epoxide were the major carotenoids, while chlorophyll a and b' were present in higher amounts. Frying of spinach leaves increased significantly the amount of α-tocopherol, β-carotene-5,6-epoxide, luteoxanthin, lutein, and its Z-isomers and chlorophyll b' isomer. There was significant decrease in the amounts of neoxanthin, violaxanthin, chlorophyll b, b' and chlorophyll a with increase of frying time. The increase of frying time increased the total phenolic contents in spinach leaves and fried sunflower oil samples. Chemical characteristics such as peroxide values, free fatty acids, conjugated dienes, conjugated trienes, and radical scavenging activity were significantly affected by frying, while spinach leaves increased the stability of the frying oil. This study can be used to improve the quality of fried vegetable leaves or their products at high temperature frying in food industries for increasing consumer acceptability.
Collapse
Affiliation(s)
- Alam Zeb
- Biochemistry Laboratory, Department of Biotechnology, Faculty of Biological Sciences, University of MalakandChakdara, Pakistan
| | | |
Collapse
|
14
|
Core-Shell Columns in High-Performance Liquid Chromatography: Food Analysis Applications. Int J Anal Chem 2016; 2016:3189724. [PMID: 27143972 PMCID: PMC4842074 DOI: 10.1155/2016/3189724] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 03/08/2016] [Indexed: 11/18/2022] Open
Abstract
The increased separation efficiency provided by the new technology of column packed with core-shell particles in high-performance liquid chromatography (HPLC) has resulted in their widespread diffusion in several analytical fields: from pharmaceutical, biological, environmental, and toxicological. The present paper presents their most recent applications in food analysis. Their use has proved to be particularly advantageous for the determination of compounds at trace levels or when a large amount of samples must be analyzed fast using reliable and solvent-saving apparatus. The literature hereby described shows how the outstanding performances provided by core-shell particles column on a traditional HPLC instruments are comparable to those obtained with a costly UHPLC instrumentation, making this novel column a promising key tool in food analysis.
Collapse
|
15
|
Li B, Zhao H, Liu J, Liu W, Fan S, Wu G, Zhao R. Application of ultra-high performance supercritical fluid chromatography for the determination of carotenoids in dietary supplements. J Chromatogr A 2015; 1425:287-92. [PMID: 26620596 DOI: 10.1016/j.chroma.2015.11.029] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 11/01/2015] [Accepted: 11/08/2015] [Indexed: 12/14/2022]
Abstract
A quick and simple ultra-high performance supercritical fluid chromatography-photodiode array detector method was developed and validated for the simultaneous determination of 9 carotenoids in dietary supplements. The influences of stationary phase, co-solvent, pressure, temperature and flow rate on the separation of carotenoids were evaluated. The separation of the carotenoids was carried out using an Acquity UPC(2) HSS C18 SB column (150mm×3.0mm, 1.8μm) by gradient elution with carbon dioxide and a 1:2 (v:v) methanol/ethanol mixture. The column temperature was set to 35°C and the backpressure was 15.2MPa. Under these conditions, 9 carotenoids and the internal standard, β-apo-8'-carotenal, were successfully separated within 10min. The correlation coefficients (R(2)) of the calibration curves were all above 0.997, the limits of detection for the 9 carotenoids were in the range of 0.33-1.08μg/mL, and the limits of quantification were in the range of 1.09-3.58μg/mL. The mean recoveries were from 93.4% to 109.5% at different spiking levels, and the relative standard deviations were between 0.8% and 6.0%. This method was successfully applied to the determination of 9 carotenoids in commercial dietary supplements.
Collapse
Affiliation(s)
- Bing Li
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - Haiyan Zhao
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China.
| | - Jing Liu
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - Wei Liu
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - Sai Fan
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - Guohua Wu
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - Rong Zhao
- Institute of Nutrition and Food Hygiene, Beijing Center for Disease Control and Prevention, Beijing 100013, China
| |
Collapse
|
16
|
Fratianni A, Mignogna R, Niro S, Panfili G. Determination of Lutein from Fruit and Vegetables Through an Alkaline Hydrolysis Extraction Method and HPLC Analysis. J Food Sci 2015; 80:C2686-91. [PMID: 26540023 DOI: 10.1111/1750-3841.13122] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 09/26/2015] [Indexed: 11/27/2022]
Abstract
A simple and rapid analytical method for the determination of lutein content, successfully used for cereal matrices, was evaluated in fruit and vegetables. The method involved the determination of lutein after an alkaline hydrolysis of the sample matrix, followed by extraction with solvents and analysis by normal phase HPLC. The optimized method was simple, precise, and accurate and it was characterized by few steps that could prevent loss of lutein and its degradation. The optimized method was used to evaluate the lutein amounts in several fruit and vegetables. Rich sources of lutein were confirmed to be green vegetables such as parsley, spinach, chicory, chard, broccoli, courgette, and peas, even if in a range of variability. Taking into account the suggested reference values these vegetables can be stated as good sources of lutein.
Collapse
Affiliation(s)
- Alessandra Fratianni
- Dipt. Agricoltura, Ambiente e Alimenti (DiAAA), Univ. degli Studi del Molise, Via De Sanctis, 86100, Campobasso, Italy
| | - Rossella Mignogna
- Dipt. Agricoltura, Ambiente e Alimenti (DiAAA), Univ. degli Studi del Molise, Via De Sanctis, 86100, Campobasso, Italy
| | - Serena Niro
- Dipt. Agricoltura, Ambiente e Alimenti (DiAAA), Univ. degli Studi del Molise, Via De Sanctis, 86100, Campobasso, Italy
| | - Gianfranco Panfili
- Dipt. Agricoltura, Ambiente e Alimenti (DiAAA), Univ. degli Studi del Molise, Via De Sanctis, 86100, Campobasso, Italy
| |
Collapse
|
17
|
Liu HL, Chen BH, Kao TH, Shiau CY. Carotenoids composition in Scutellaria barbata D. Don as detected by high performance liquid chromatography-diode array detection-mass spectrometry-atmospheric pressure chemical ionization. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
18
|
Delpino-Rius A, Eras J, Marsol-Vall A, Vilaró F, Balcells M, Canela-Garayoa R. Ultra performance liquid chromatography analysis to study the changes in the carotenoid profile of commercial monovarietal fruit juices. J Chromatogr A 2014; 1331:90-9. [DOI: 10.1016/j.chroma.2014.01.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 01/15/2014] [Accepted: 01/16/2014] [Indexed: 01/19/2023]
|
19
|
Sözgen Başkan K, Tütem E, Özer N, Apak R. Spectrophotometric and chromatographic assessment of contributions of carotenoids and chlorophylls to the total antioxidant capacities of plant foods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11371-81. [PMID: 24168293 DOI: 10.1021/jf403356h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Carotenoids and chlorophylls are photosynthetic compounds and also efficient antioxidants. This study aims to identify and quantify carotenoids and chlorophylls in some vegetables (carrot, tomato, spinach), to measure the total antioxidant capacity (TAC) of these samples with two spectrophotometric methods, to correlate TAC data with carotenoid structure, and to compare the TAC results with HPLC findings. Separation of the individual antioxidant pigments was achieved on a C30 column using a developed gradient elution program involving methanol-acetonitrile (50:50, v/v) with 0.1% (v/v) triethylamine (TEA) (A) and acetone (B) mobile phases. Total antioxidant capacities of the acetone extracts of studied samples, in trolox and β-carotene equivalents, were in the order: spinach > tomato > carrot by both CUPRAC and ABTS methods. CUPRAC responded favorably to both chlorophylls a and b. The TAC calculated with aid of combined HPLC-spectrophotometry was very close to the spectrophotometric value (93-108%) for real samples and synthetic mixtures.
Collapse
Affiliation(s)
- Kevser Sözgen Başkan
- Department of Chemistry, Faculty of Engineering, Istanbul University , 34320 Istanbul, Turkey
| | | | | | | |
Collapse
|
20
|
Determination of egg yolk xanthophylls by isocratic high-performance liquid chromatography. J Chromatogr A 2013; 1318:134-41. [DOI: 10.1016/j.chroma.2013.09.074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 11/22/2022]
|
21
|
Vázquez E, García-Risco MR, Jaime L, Reglero G, Fornari T. Simultaneous extraction of rosemary and spinach leaves and its effect on the antioxidant activity of products. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.07.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|