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Araujo-León JA, Sánchez-del Pino I, Ortiz-Andrade R, Hidalgo-Figueroa S, Carrera-Lanestosa A, Brito-Argáez LG, González-Sánchez A, Giácoman-Vallejos G, Hernández-Abreu O, Peraza-Sánchez SR, Xingú-López A, Aguilar-Hernández V. HPLC-Based Metabolomic Analysis and Characterization of Amaranthus cruentus Leaf and Inflorescence Extracts for Their Antidiabetic and Antihypertensive Potential. Molecules 2024; 29:2003. [PMID: 38731493 PMCID: PMC11085149 DOI: 10.3390/molecules29092003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/08/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
The aim of this study was to investigate the potential of Amaranthus cruentus flavonoids (quercetin, kaempferol, catechin, hesperetin, naringenin, hesperidin, and naringin), cinnamic acid derivatives (p-coumaric acid, ferulic acid, and caffeic acid), and benzoic acids (vanillic acid and 4-hydroxybenzoic acid) as antioxidants, antidiabetic, and antihypertensive agents. An analytical method for simultaneous quantification of flavonoids, cinnamic acid derivatives, and benzoic acids for metabolomic analysis of leaves and inflorescences from A. cruentus was developed with HPLC-UV-DAD. Evaluation of linearity, limit of detection, limit of quantitation, precision, and recovery was used to validate the analytical method developed. Maximum total flavonoids contents (5.2 mg/g of lyophilized material) and cinnamic acid derivatives contents (0.6 mg/g of lyophilized material) were found in leaves. Using UV-Vis spectrophotometry, the maximum total betacyanin contents (74.4 mg/g of lyophilized material) and betaxanthin contents (31 mg/g of lyophilized material) were found in inflorescences. The leaf extract showed the highest activity in removing DPPH radicals. In vitro antidiabetic activity of extracts was performed with pancreatic α-glucosidase and intestinal α-amylase, and compared to acarbose. Both extracts exhibited a reduction in enzyme activity from 57 to 74%. Furthermore, the in vivo tests on normoglycemic murine models showed improved glucose homeostasis after sucrose load, which was significantly different from the control. In vitro antihypertensive activity of extracts was performed with angiotensin-converting enzyme and contrasted to captopril; both extracts exhibited a reduction of enzyme activity from 53 to 58%. The leaf extract induced a 45% relaxation in an ex vivo aorta model. In the molecular docking analysis, isoamaranthin and isogomphrenin-I showed predictive binding affinity for α-glucosidases (human maltase-glucoamylase and human sucrase-isomaltase), while catechin displayed binding affinity for human angiotensin-converting enzyme. The data from this study highlights the potential of A. cruentus as a functional food.
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Affiliation(s)
- Jesús Alfredo Araujo-León
- Unidad de Biología Integrativa, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico; (J.A.A.-L.); (L.G.B.-A.)
| | - Ivonne Sánchez-del Pino
- Unidad de Recursos Naturales, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico;
| | - Rolffy Ortiz-Andrade
- Facultad de Química, Universidad Autónoma de Yucatán (UADY), Mérida 97069, Yucatán, Mexico;
| | - Sergio Hidalgo-Figueroa
- CONAHCyT-División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica A.C., San Luis Potosí 78216, San Luis Potosí, Mexico;
| | - Areli Carrera-Lanestosa
- División Académica de Ciencias Agropecuarias, Universidad Juárez Autónoma de Tabasco (UJAT), Villahermosa 86280, Tabasco, Mexico;
| | - Ligia Guadalupe Brito-Argáez
- Unidad de Biología Integrativa, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico; (J.A.A.-L.); (L.G.B.-A.)
| | - Avel González-Sánchez
- Facultad de Ingeniería, Universidad Autónoma de Yucatán (UADY), Mérida 97203, Yucatán, Mexico; (A.G.-S.); (G.G.-V.)
| | - Germán Giácoman-Vallejos
- Facultad de Ingeniería, Universidad Autónoma de Yucatán (UADY), Mérida 97203, Yucatán, Mexico; (A.G.-S.); (G.G.-V.)
| | - Oswaldo Hernández-Abreu
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco, Universidad Juárez Autónoma de Tabasco (UJAT), Cunduacán 86690, Tabasco, Mexico;
| | - Sergio R. Peraza-Sánchez
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico; (S.R.P.-S.); (A.X.-L.)
| | - Andrés Xingú-López
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico; (S.R.P.-S.); (A.X.-L.)
| | - Víctor Aguilar-Hernández
- Unidad de Biología Integrativa, Centro de Investigación Científica de Yucatán (CICY), Mérida 97205, Yucatán, Mexico; (J.A.A.-L.); (L.G.B.-A.)
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2
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Lacerda VR, Bastante CC, Machado ND, Vieites RL, Casas Cardoso L, Mantell-Serrano C. Supercritical extraction of betalains from the peel of different pitaya species. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38353869 DOI: 10.1002/jsfa.13383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Pitaya is a fruit with high consumer acceptance and health benefits. Pitaya peel is a waste product with potential in the food industry, as an antioxidant enrichment and natural colouring. Therefore, there is an interest in recovering its constituents and searching for pitaya species with greater potential. This work aimed to obtain bioactive extracts from the dried peel of pitaya fruits of the species Selenicereus monacanthus (Lem.), S. costaricensis W. and S. undatus H. using supercritical fluids at different pressures (100, 250 and 400 bar) and ethanol-water 15% v/v or ethanol 100% as co-solvents. The extraction yield, antioxidant activity, colour and total betalain content were evaluated. RESULTS The extract obtained from S. monacanthus showed the highest extraction yield (49.6 g kg-1 ), followed by S. costaricensis (27.5 g kg-1 ) and S. undatus (17.7 g kg-1 ) at 400 bar and 35 °C using ethanol 15%, v/v. The antioxidant capacity was strongly influenced by pressure, favouring the obtaining of betalain-rich extracts at higher pressures, especially in the species S. costaricensis (0.6 g kg-1 ) and S. monacanthus (0.3 g kg-1 ). To improve the extraction of S. undatus (the most cultivated species), the procedure of subsequential extractions was applied. This procedure considerably increased the extraction yield, antioxidant activity and total content of betalains. The use of ethanol 100% provided more bioactive fractions and achieved a good separation of betalains. CONCLUSION The supercritical extraction method can overcome the challenge of efficiently extracting compounds from pitaya peel, due to the presence of bioactive compounds of great polarity. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Vander Rocha Lacerda
- Department of Vegetable Production (Horticulture), School of Agriculture, São Paulo State University (UNESP), Botucatu, Brazil
| | - Cristina Cejudo Bastante
- Chemical Engineering and Food Technology Department, Faculty of Science, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Puerto Real, Spain
| | - Noelia D Machado
- Chemical Engineering and Food Technology Department, Faculty of Science, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Puerto Real, Spain
| | - Rogério Lopes Vieites
- Department of Vegetable Production (Horticulture), School of Agriculture, São Paulo State University (UNESP), Botucatu, Brazil
| | - Lourdes Casas Cardoso
- Chemical Engineering and Food Technology Department, Faculty of Science, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Puerto Real, Spain
| | - Casimiro Mantell-Serrano
- Chemical Engineering and Food Technology Department, Faculty of Science, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Puerto Real, Spain
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3
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Sutor-Świeży K, Górska R, Kumorkiewicz-Jamro A, Dziedzic E, Bieniasz M, Mielczarek P, Popenda Ł, Pasternak K, Tyszka-Czochara M, Baj-Krzyworzeka M, Stefańska M, Błyszczuk P, Wybraniec S. Basella alba L. (Malabar Spinach) as an Abundant Source of Betacyanins: Identification, Stability, and Bioactivity Studies on Natural and Processed Fruit Pigments. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2943-2962. [PMID: 38301126 PMCID: PMC10870984 DOI: 10.1021/acs.jafc.3c06225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/01/2023] [Accepted: 12/15/2023] [Indexed: 02/03/2024]
Abstract
The antioxidant and anti-inflammatory activities of acylated and decarboxylated gomphrenins, as well as Basella alba L. fruit extract, were investigated in relation to gomphrenin, known for its high biological potential. The most abundant natural acylated gomphrenins, namely, 6'-O-E-caffeoyl-gomphrenin (malabarin) and 6'-O-E-4-coumaroyl-gomphrenin (globosin), were isolated from B. alba extract for the studies. In addition, controlled thermal decarboxylation of gomphrenin in the purified B. alba extract at 65-75 °C resulted in the formation of the most prevalent decarboxylated products, including 17-decarboxy-gomphrenin and 2,17-bidecarboxy-gomphrenin, along with their isoforms. The structures of the decarboxylated pigments were confirmed by NMR analyses. Exploring the matrix effect on pigment reactivity revealed a tremendous increase in the stability of all betacyanins after the initial stage of extract purification using a cation exchanger under various conditions. This indicates the removal of a substantial portion of the unfavorable matrix from the extract, which presumably contains reactive species that could otherwise degrade the pigments. Furthermore, the high concentration of citrates played a significant role in favoring the formation of 2-decarboxy-gomphrenin to a considerable extent. In vitro screening experiments revealed that the tested compounds demonstrated strong anti-inflammatory properties in lipopolysaccharide (LPS)-activated human macrophages. This effect encompassed the selective inhibition of cytokine and chemokine release from activated macrophages, modulation of the chemotactic activity of immune cells, and the regulation of tissue remodeling mediators' release.
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Affiliation(s)
- Katarzyna Sutor-Świeży
- Department
C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Krakow 31-155, Poland
| | - Renata Górska
- Department
C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Krakow 31-155, Poland
| | - Agnieszka Kumorkiewicz-Jamro
- Department
C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Krakow 31-155, Poland
- South
Australian Health and Medical Research Institute, Adelaide 5000, SA, Australia
- Faculty
of Health and Medical Sciences, University
of Adelaide, Adelaide 5000, SA, Australia
| | - Ewa Dziedzic
- Faculty
of Biotechnology and Horticulture, University
of Agriculture in Krakow, al. 29 Listopada 54, Krakow 31-425, Poland
| | - Monika Bieniasz
- Faculty
of Biotechnology and Horticulture, University
of Agriculture in Krakow, al. 29 Listopada 54, Krakow 31-425, Poland
| | - Przemysław Mielczarek
- Department
of Analytical Chemistry and Biochemistry, Faculty of Materials Science
and Ceramics, AGH University of Science
and Technology, al. Adama Mickiewicza 30, Krakow 30-059, Poland
- Laboratory
of Proteomics and Mass Spectrometry, Maj Institute of Pharmacology, Polish Academy of Sciences, ul. Smętna 12, Krakow 31-343, Poland
| | - Łukasz Popenda
- NanoBioMedical
Centre, Adam Mickiewicz University, ul. Wszechnicy Piastowskiej 3, Poznan 61-614, Poland
| | - Karol Pasternak
- Institute
of Bioorganic Chemistry, Polish Academy
of Sciences, ul. Noskowskiego
12/14, Poznan 61-704, Poland
| | | | - Monika Baj-Krzyworzeka
- Faculty
of Medicine, Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Kraków 30-688, Poland
| | - Monika Stefańska
- Faculty
of Medicine, Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Kraków 30-688, Poland
| | - Przemysław Błyszczuk
- Faculty
of Medicine, Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Kraków 30-688, Poland
| | - Sławomir Wybraniec
- Department
C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, Krakow 31-155, Poland
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4
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Chung C, Baier S, McClements DJ, Decker EA. Stabilization of myoglobin from different species (produced by cellular agriculture) using food-grade natural and synthetic antioxidants. Food Res Int 2024; 178:113965. [PMID: 38309880 DOI: 10.1016/j.foodres.2024.113965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/19/2023] [Accepted: 01/02/2024] [Indexed: 02/05/2024]
Abstract
Cellular agriculture products, like myoglobin, are increasingly used by the food industry to provide desirable sensory properties to plant-based meat substitutes. This study elucidated the physicochemical properties and redox stability of myoglobin from both natural (equine) and cellular agriculture (bovine, sperm whale, and leopard) sources. The electrical characteristics and water-solubility of the different myoglobin samples were measured from pH 2.5 to 8.5. The isoelectric point of the myoglobin samples depended on the species, being pH 5.5 for equine, pH 4.5 for leopard and bovine, and pH 6.5 for sperm whale. All myoglobin samples had a solubility greater than 80% across the entire pH range studied. All myoglobin solutions appeared red and had two peaks in their UV-visible absorbance spectra after one day, which is consistent with oxymyoglobin formation. Equine myoglobin at pH 8 was selected to study its redox and color stability over time, where the oxymyoglobin oxidative status closely paralleled with the redness of the solutions. The effects of antioxidants (ascorbic acid, caffeic acid, catechin, gallic acid, quercetin, taxifolin, Trolox, and 4-methylcatechol) on the redox and color stability (redness) of the equine myoglobin (pH 8.0) was also studied. Antioxidants with low reduction potential values (ascorbic acid and quercetin) were particularly effective at enhancing the color stability of oxymyoglobin. The computational modeling study showed that amino acids on the myoglobin interacted with antioxidants through hydrogen bonds. The insights obtained may have important implications for the use of cellular agriculture to produce myoglobin for food applications.
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Affiliation(s)
- Cheryl Chung
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
| | - Stefan Baier
- Motif Foodworks, Design Building, 27 Drydock Ave, Boston, MA 02210, USA
| | | | - Eric Andrew Decker
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
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5
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Feng Y, Yan X, Guo F, Wang S, Liu Z, Long W. Identification, expression analysis of quinoa betalain biosynthesis genes and their role in seed germination and cold stress. PLANT SIGNALING & BEHAVIOR 2023; 18:2250891. [PMID: 37616475 PMCID: PMC10453985 DOI: 10.1080/15592324.2023.2250891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/05/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
Betalains provide Chenopodium quinoa bright color, and the key enzyme genes for betalain biosynthesis include CYP76AD, DODA, and GTs. In this study, 59 CqCYP76AD, CqDODA and CqGTs genes in quinoa were identified and characterized by gene structural characteristics, phylogenetic relationships and gene expression patterns. The CqCYP76AD genes were divided into ɑ, β and γ types, CqDODA into ɑ and β types, and CqGTs into CqcDOPA5GT, CqB5GT and CqB6GT types according to phylogenetic relationships. The analysis of co-linearity identified eight pairs of duplicated genes which were subjected to purifying selection during evolution. CqCYP76AD and CqDODA, as well as CqcDOPA5GT and CqB5GT may have been evolutionarily linked in genetic inheritance, based on gene location and gene structure study. The tissue expression specificity of CqCYP76AD, CqDODA, and CqGTs genes in response to seed germination and cold stress was studied by RNA-Seq data. The genes CqCYP76AD, CqDODA, and CqGTs were involved in betalain biosynthesis and cold stress. CqCYP76AD, CqDODA, CqcDOPA5GT and CqB5GT gene sequences were consistent in the eight quinoa samples and showed significant variations in expression. In contrast, the inconsistency between changes in gene expression and betalain accumulation indicates that other factors may influence betalain biosynthesis in quinoa. This study offers the theoretical basis for the roles of the CqCYP76AD, CqDODA, and CqGTs genes in betalain biosynthesis and cold stress in quinoa, as well as a guide for the full utilization of betalains in quinoa plants.
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Affiliation(s)
- Yang Feng
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Xingzhu Yan
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Fenggen Guo
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Shiyi Wang
- College of Horticulture and Landscape, Yunnan Agricultural University, Kunming, China
| | - Zhengjie Liu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Wenhong Long
- College of Horticulture and Landscape, Yunnan Agricultural University, Kunming, China
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6
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Kumorkiewicz-Jamro A, Górska R, Krok-Borkowicz M, Mielczarek P, Popenda Ł, Lystvan K, Pamuła E, Wybraniec S. Unveiling Alternative Oxidation Pathways and Antioxidant and Cardioprotective Potential of Amaranthin-Type Betacyanins from Spinach-like Atriplex hortensis var. ' Rubra'. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15017-15034. [PMID: 37791532 PMCID: PMC10591473 DOI: 10.1021/acs.jafc.3c03044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/30/2023] [Accepted: 09/13/2023] [Indexed: 10/05/2023]
Abstract
A comprehensive oxidation mechanism was investigated for amaranthin-type betacyanins with a specific glucuronosylglucosyl moiety isolated from Atriplex hortensis 'rubra' using liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry (LC-DAD-ESI-MS/MS) and LC-Quadrupole-Orbitrap-MS (LC-Q-Orbitrap-MS). By employing one-dimensional (1D) and two-dimensional (2D) NMR, this study elucidates the chemical structures of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS)-oxidized celosianins for the first time. These findings demonstrate alternative oxidation pathways for acylated betacyanins compared to well-known betanidin, betanin, and gomphrenin pigments. Contrary to previous research, we uncover the existence of 17-decarboxy-neo- and 2,17-bidecarboxy-xanneo-derivatives as the initial oxidation products without the expected 2-decarboxy-xan forms. These oxidized compounds demonstrated potent free radical scavenging properties. Celosianin (IC50 = 23 μg/mL) displayed slightly higher antioxidant activity compared to oxidized forms, 17-decarboxy-neocelosianin (IC50 = 34 μg/mL) and 2,17-bidecarboxy-xanneocelosianin (IC50 = 29 μg/mL). The oxidized compounds showed no cytotoxic effects on H9c2 rat cardiomyoblasts (0.1-100 μg/mL). Additionally, treatment of H9c2 cells with the oxidized compounds (0.1-10 μg/mL) elevated glutathione levels and exhibited protective effects against H2O2-induced cell death. These findings have significant implications for understanding the impact of oxidation processes on the structures and biological activities of acylated betalains, providing valuable insights for future studies of the bioavailability and biological mechanism of their action in vivo.
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Affiliation(s)
- Agnieszka Kumorkiewicz-Jamro
- Department
of Chemical Technology and Environmental Analysis, Faculty of Chemical
Engineering and Technology, Cracow University
of Technology, Warszawska 24, 31-155 Cracow, Poland
- South
Australian Health and Medical Research Institute, Adelaide 5000, SA, Australia
- Faculty
of Health and Medical Sciences, University
of Adelaide, Adelaide 5000, SA, Australia
| | - Renata Górska
- Department
of Chemical Technology and Environmental Analysis, Faculty of Chemical
Engineering and Technology, Cracow University
of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Małgorzata Krok-Borkowicz
- Department
of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Przemysław Mielczarek
- Department
of Analytical Chemistry and Biochemistry, Faculty of Materials Science
and Ceramics, AGH University of Science
and Technology, Al. Mickiewicza
30, 30059 Cracow, Poland
- Laboratory
of Proteomics and Mass Spectrometry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Cracow, Poland
| | - Łukasz Popenda
- NanoBioMedical
Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Kateryna Lystvan
- Department
of Genetic Engineering, Institute of Cell
Biology and Genetic Engineering of National Academy of Sciences of
Ukraine (NASU), Academika
Zabolotnoho, 148, 03143 Kyiv, Ukraine
| | - Elżbieta Pamuła
- Department
of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Sławomir Wybraniec
- Department
of Chemical Technology and Environmental Analysis, Faculty of Chemical
Engineering and Technology, Cracow University
of Technology, Warszawska 24, 31-155 Cracow, Poland
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7
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Kumorkiewicz-Jamro A, Górska R, Krok-Borkowicz M, Reczyńska-Kolman K, Mielczarek P, Popenda Ł, Spórna-Kucab A, Tekieli A, Pamuła E, Wybraniec S. Betalains isolated from underexploited wild plant Atriplex hortensis var. rubra L. exert antioxidant and cardioprotective activity against H9c2 cells. Food Chem 2023; 414:135641. [PMID: 36809729 DOI: 10.1016/j.foodchem.2023.135641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/11/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
Atriplex hortensis var. rubra L. extracts prepared from leaves, seeds with sheaths, and stems were characterized for betalainic profiles by spectrophotometry, LC-DAD-ESI-MS/MS and LC-Orbitrap-MS techniques. The presence of 12 betacyanins in the extracts was strongly correlated with high antioxidant activity measured by ABTS, FRAP, and ORAC assays. Comparative assessment between samples indicated the highest potential for celosianin and amaranthin (IC50 21.5 and 32.2 μg/ml, respectively). The chemical structure of celosianin was elucidated for the first time by complete 1D and 2D NMR analysis. Our findings also demonstrate that betalain-rich A. hortensis extracts and purified pigments (amaranthin and celosianin) do not induce cytotoxicity in a wide concentration range in rat cardiomyocytes model (up to 100 μg/ml for extracts and 1 mg/ml for pigments). Furthermore, tested samples effectively protect H9c2 cells from H2O2-induced cell death and prevent from apoptosis induced by Paclitaxel. The effects were observed at sample concentrations between 0.1 and 10 μg/ml.
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Affiliation(s)
- Agnieszka Kumorkiewicz-Jamro
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; South Australian Health and Medical Research Institute, Adelaide 5000 SA, Australia; Faculty of Health and Medical Science, University of Adelaide, Adelaide 5005 SA, Australia.
| | - Renata Górska
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Małgorzata Krok-Borkowicz
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Katarzyna Reczyńska-Kolman
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Przemysław Mielczarek
- Department of Analytical Chemistry and Biochemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059, Cracow, Poland; Laboratory of Proteomics and Mass Spectrometry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Cracow, Poland
| | - Łukasz Popenda
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Aneta Spórna-Kucab
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Anna Tekieli
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Sławomir Wybraniec
- Department of Chemical Technology and Environmental Analysis, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
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8
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Abedi-Firoozjah R, Parandi E, Heydari M, Kolahdouz-Nasiri A, Bahraminejad M, Mohammadi R, Rouhi M, Garavand F. Betalains as promising natural colorants in smart/active food packaging. Food Chem 2023; 424:136408. [PMID: 37245469 DOI: 10.1016/j.foodchem.2023.136408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 03/07/2023] [Accepted: 05/15/2023] [Indexed: 05/30/2023]
Abstract
Betalains are water-soluble nitrogen pigments with beneficial effects, including antioxidant, antimicrobial, and pH-indicator properties. The development of packaging films incorporated with betalains has received increasing attention because of pH-responsive color-changing properties in the colorimetric indicators and smart packaging films. As such, intelligent and active packaging systems based on biodegradable polymers containing betalains have been recently developed as eco-friendly packaging to enhance the quality and safety of food products. Betalains could generally improve the functional properties of packaging films, such as higher water resistance, tensile strength, elongation at break, and antioxidant and antimicrobial activities. These effects are dependent on betalain composition (about its source and extraction), content, and the kind of biopolymer, film preparation method, food samples, and storage time. This review focused on betalains-rich films as pH- and ammonia-sensitive indicators and their applications as smart packaging to monitor the freshness of protein-rich foods such as shrimp, fish, chicken, and milk.
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Affiliation(s)
- Reza Abedi-Firoozjah
- Student Research Committee, Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ehsan Parandi
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran; Department of Food Science and Technology, Faculty of Food Industry and Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Mahshid Heydari
- Student Research Committee, Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Azin Kolahdouz-Nasiri
- Student Research Committee, Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mahshid Bahraminejad
- Student Research Committee, Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Mohammadi
- Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Milad Rouhi
- Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Farhad Garavand
- Department of Food Chemistry and Technology, Teagasc Moorepark Food Research Centre, Fermoy, Co. Cork, Ireland.
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9
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Xu J, You L, Zhao Z. Synthesize of the chitosan-TPP coated betanin-quaternary ammonium-functionalized mesoporous silica nanoparticles and mechanism for inhibition of advanced glycation end products formation. Food Chem 2023; 407:135110. [PMID: 36495745 DOI: 10.1016/j.foodchem.2022.135110] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/03/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022]
Abstract
Advanced glycation end products (AGEs) are harmful by-products of thermal-processing of food. Betanin is an antioxidant with the potential to inhibit AGEs formation. In this work, we encapsulated betanin in chitosan-sodium tripolyphosphate coated quaternary ammonium-functionalized mesoporous silica nanoparticles (CS@QAMSNPs) to enhance the ability of betanin to inhibit AGEs formation. The inhibition rate of betanin-CS@QAMSNPs was 70.29%, which was higher than that of betanin (39.48%). Compared with betanin (2.16%), betanin-CS@QAMSNPs can trap more methylglyoxal (18.7%), absorb formed AGEs, and retain the antioxidant capacity of betanin under high-temperatures. Betanin-CS@QAMSNPs can reduce the average degree of substitution per peptide molecule value (DSP) of some glycation sites in bovine serum albumin. The cell viability was over 80% in the presence of betanin-CS@QAMSNPs, indicating their good biocompatibility. In the biscuit model, the highest inhibition rate of AGEs formation by betanin-CS@QAMSNPs was 12.5%, and CS@QAMSNPs can further adsorb the AGEs generated during digestion.
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Affiliation(s)
- Jiahao Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Zhengang Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
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10
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Application of Chiral Piperidine Scaffolds in Drug Design. PHARMACEUTICAL FRONTS 2023. [DOI: 10.1055/s-0043-1764218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
Chiral piperidine scaffolds are prevalent as the common cores of a large number of active pharmaceuticals in medical chemistry. This review outlined the diversity of chiral piperidine scaffolds in recently approved drugs, and also covers the scaffolds in leads and drug candidates. The significance of chiral piperidine scaffolds in drug design is also discussed in this article. With the introduction of chiral piperidine scaffolds into small molecules, the exploration of drug-like molecules can be benefitted from the following aspect: (1) modulating the physicochemical properties; (2) enhancing the biological activities and selectivity; (3) improving pharmacokinetic properties; and (4) reducing the cardiac hERG toxicity. Given above, chiral piperidine-based discovery of small molecules will be a promising strategy to enrich our molecules' library to fight against diseases.
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11
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Anti-Inflammatory, Antioxidant, and Other Health Effects of Dragon Fruit and Potential Delivery Systems for Its Bioactive Compounds. Pharmaceutics 2023; 15:pharmaceutics15010159. [PMID: 36678789 PMCID: PMC9861186 DOI: 10.3390/pharmaceutics15010159] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
Dragon fruit (Hylocereus genus) has the potential for the prevention of diseases associated with inflammatory and oxidative processes. We aimed to comprehensively review dragon fruit health effects, economic importance, and possible use in delivery systems. Pubmed, Embase, and Google Scholar were searched, and PRISMA (Preferred Reporting Items for a Systematic Review and Meta-Analysis) guidelines were followed. Studies have shown that pitaya can exert several benefits in conditions such as diabetes, dyslipidemia, metabolic syndrome, cardiovascular diseases, and cancer due to the presence of bioactive compounds that may include vitamins, potassium, betacyanin, p-coumaric acid, vanillic acid, and gallic acid. Moreover, pitaya has the potential to be used in food and nutraceutical products as functional ingredients, natural colorants, ecologically correct and active packaging, edible films, preparation of photoprotective products, and additives. Besides the importance of dragon fruit as a source of bioactive compounds, the bioavailability is low. The development of delivery systems such as gold nanoparticles with these compounds can be an alternative to reach target tissues.
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12
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Muñoz-Miranda LA, Iñiguez-Moreno M. An extensive review of marine pigments: sources, biotechnological applications, and sustainability. AQUATIC SCIENCES 2023; 85:68. [PMID: 37096011 PMCID: PMC10112328 DOI: 10.1007/s00027-023-00966-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
The global demand for food and healthcare products based on natural compounds means that the industrial and scientific sectors are on a continuous search for natural colored compounds that can contribute to the replacement of synthetic colors. Natural pigments are a heterogeneous group of chemical molecules, widely distributed in nature. Recently, the interest in marine organisms has increased as they represent the most varied environment in the world and provide a wide range of colored compounds with bioactive properties and biotechnological applications in areas such as the food, pharmaceutical, cosmetic, and textile industries. The use of marine-derived pigments has increased during the last two decades because they are environmentally safe and healthy compounds. This article provides a comprehensive review of the current knowledge of sources, applications, and sustainability of the most important marine pigments. In addition, alternatives to protect these compounds from environmental conditions and their applications in the industrial sector are reviewed.
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Affiliation(s)
- Luis Alfonso Muñoz-Miranda
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, 44340 Jalisco Mexico
| | - Maricarmen Iñiguez-Moreno
- Institute of Advanced Materials for Sustainable Manufacturing, Tecnológico de Monterrey, Monterrey, 64849 Mexico
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849 Mexico
- Universidad Politécnica del Estado de Nayarit, Tepic, 63506 Nayarit Mexico
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13
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Sutor-Świeży K, Proszek J, Popenda Ł, Wybraniec S. Influence of Citrates and EDTA on Oxidation and Decarboxylation of Betacyanins in Red Beet ( Beta vulgaris L.) Betalain-Rich Extract. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249054. [PMID: 36558186 PMCID: PMC9788644 DOI: 10.3390/molecules27249054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
The influence of stabilizing activity of citric buffers on betacyanins, as well as their thermal dehydrogenation and decarboxylation in a beetroot betalain-rich extract (BRE), was studied at pH 3-8 and temperature 30, 50 and 85 °C with an additional effect of EDTA. In acetate/phosphate buffers, the highest stability is observed at pH 5 and it decreases toward pH 3 as well as pH 8, which is more remarkable at 85 °C. For the citrates, a contradictory effect was observed. Citric buffers tend to stabilize the substrate pigments and their intermediary products in acidic solutions, although increase their reactivity at pH 6-8. The highest impact of EDTA addition on pigment retention in acetate buffers is observed at 85 °C and pH 3-5 as well as 8, reflecting the preserving activity of EDTA at the most unfavorable conditions. At lower temperatures, pigment stability in more acidic conditions is still at higher levels even without addition of citrates or EDTA. The most striking effect on generation of betanin derivatives during heating is 2-decarboxylation which preferentially proceeds in the most acidic environment and this generation rate at 85 °C is much higher in the citrate buffers compared to acetates.
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Affiliation(s)
- Katarzyna Sutor-Świeży
- Faculty of Chemical Engineering and Technology, Department C-1, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland
| | - Justyna Proszek
- Faculty of Chemical Engineering and Technology, Department C-1, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland
| | - Łukasz Popenda
- NanoBioMedical Centre, Adam Mickiewicz University, ul. Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Sławomir Wybraniec
- Faculty of Chemical Engineering and Technology, Department C-1, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland
- Correspondence: ; Tel.: +48-12-628-3074; Fax: +48-12-628-2036
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14
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Structural Effects on the Antioxidant Properties of Amino Acid Betaxanthins. Antioxidants (Basel) 2022; 11:antiox11112259. [DOI: 10.3390/antiox11112259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Betaxanthins are natural products with high antioxidant and anti-inflammatory properties. Here, we describe the semisynthesis of twenty-one betaxanthins derived from proteinogenic amino acids, including the elusive betaxanthin of l-cysteine and two betaxanthins derived from l-lysine, and rationalize their antioxidant properties in mechanistic terms. The antioxidant capacity and redox potential of these betaxanthins were compared to those of model betaxanthins derived from dopamine, l-DOPA (L-3,4-dihydroxyphenylalanine), and pyrrolidine and structure–property relationships were established by using matched molecular pair analysis and a model developed using a genetic algorithm. Either a phenol or indole moiety enhance the antioxidant capacity of betaxanthins, which is overall much higher than that of their amino acid precursors and standard antioxidants, except for the cysteine-betaxanthin. The one-electron oxidation of amino acid betaxanthins produces radicals stabilized in multiple centers, as demonstrated by quantum chemical calculations.
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15
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Zin MM, Nagy K, Bánvölgyi S, Abrankó L, Nath A. Effect of microwave pretreatment on the extraction of antioxidant‐rich red color betacyanin, phenolic, and flavonoid from the crown of Cylindra‐type beetroot (
Beta vulgaris
L.). J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moh Moh Zin
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Katalin Nagy
- Department of Food Chemistry and Analytical Chemistry Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Szilvia Bánvölgyi
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - László Abrankó
- Department of Food Chemistry and Analytical Chemistry Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
| | - Arijit Nath
- Department of Food Process Engineering Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences Budapest Hungary
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16
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Sutor-Świeży K, Antonik M, Dziedzic E, Bieniasz M, Mielczarek P, Popenda Ł, Pasternak K, Tyszka-Czochara M, Wybraniec S. Structural Studies on Diverse Betacyanin Classes in Matured Pigment-Rich Fruits of Basella alba L. and Basella alba L. var. ‘Rubra’ (Malabar Spinach). Int J Mol Sci 2022; 23:ijms231911243. [PMID: 36232545 PMCID: PMC9570114 DOI: 10.3390/ijms231911243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/20/2022] Open
Abstract
Identification of betacyanins in Basella alba L. and Basella alba L. var. ‘Rubra’ fruits was performed by low- and high-resolution mass spectrometry (LRMS and HRMS) as well as 1H, 13C and two-dimensional NMR which revealed hitherto completely not known betacyanin classes in the plant kingdom. Especially, the presence of unique nitrogenous acyl moieties in the structures of the pigments was ascertained by the HRMS Orbitrap detection. Except for detected polar betacyanin glycosylated derivatives, presence of a series of previously not reported pigments such as malonylated betanidin 6-O-β-glusosides with their acyl migration isomers along with the evidence of the 3′′-hydroxy-butyrylated betacyanins is reported. The first complete NMR data were obtained for novel and principal acylated gomphrenins with hydroxycinnamic acids: 6′-O-E-caffeoyl-gomphrenin (malabarin), 6′-O-E-sinapoyl-gomphrenin (gandolin), 6′-O-E-4-coumaroyl-gomphrenin (globosin) and 6′-O-E-feruloyl-gomphrenin (basellin).
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Affiliation(s)
- Katarzyna Sutor-Świeży
- Department C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland
| | - Michał Antonik
- Department C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland
| | - Ewa Dziedzic
- Faculty of Biotechnology and Horticulture, Agricultural University of Krakow, al. 29 Listopada 54, 31-425 Krakow, Poland
| | - Monika Bieniasz
- Faculty of Biotechnology and Horticulture, Agricultural University of Krakow, al. 29 Listopada 54, 31-425 Krakow, Poland
| | - Przemysław Mielczarek
- Department of Analytical Chemistry and Biochemistry, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059, Krakow, Poland
- Laboratory of Proteomics and Mass Spectrometry, Maj Institute of Pharmacology, Polish Academy of Sciences, ul. Smętna 12, 31-343 Krakow, Poland
| | - Łukasz Popenda
- NanoBioMedical Centre, Adam Mickiewicz University, ul. Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Karol Pasternak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704 Poznan, Poland
| | | | - Sławomir Wybraniec
- Department C-1, Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland
- Correspondence: ; Tel.: +48-12-628-3074; Fax: +48-12-628-2036
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17
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Xu J, Lian J, You L, Zhao Z. Characteristics and properties of the quaternary ammonium-functionalized micron chitosan modified by zinc citrate chelates for encapsulation of betanin. Colloids Surf B Biointerfaces 2022; 218:112752. [DOI: 10.1016/j.colsurfb.2022.112752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022]
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18
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Soares DM, Gonçalves LP, Machado CO, Esteves LC, Stevani CV, Oliveira CC, Dörr FA, Pinto E, Adachi FM, Hotta CT, Bastos EL. Reannotation of Fly Amanita l-DOPA Dioxygenase Gene Enables Its Cloning and Heterologous Expression. ACS OMEGA 2022; 7:16070-16079. [PMID: 35571802 PMCID: PMC9097196 DOI: 10.1021/acsomega.2c01365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
The l-DOPA dioxygenase of Amanita muscaria (AmDODA) participates in the biosynthesis of betalain- and hygroaurin-type natural pigments. AmDODA is encoded by the dodA gene, whose DNA sequence was inferred from cDNA and gDNA libraries almost 30 years ago. However, reports on its heterologous expression rely on either the original 5'-truncated cDNA plasmid or artificial gene synthesis. We provide unequivocal evidence that the heterologous expression of AmDODA from A. muscaria specimens is not possible by using the coding sequence previously inferred for dodA. Here, we rectify and reannotate the full-length coding sequence for AmDODA and express a 205-aa His-tagged active enzyme, which was used to produce the l-DOPA hygroaurin, a rare fungal pigment. Moreover, AmDODA and other isozymes from bacteria were submitted to de novo folding using deep learning algorithms, and their putative active sites were inferred and compared. The wide catalytic pocket of AmDODA and the presence of the His-His-His and His-His-Asp motifs can provide insight into the dual cleavage of l-DOPA at positions 2,3 and 4,5 as per the mechanism proposed for nonheme dioxygenases.
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Affiliation(s)
- Douglas
M. M. Soares
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
- Departamento
de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
| | - Letícia
C. P. Gonçalves
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
| | - Caroline O. Machado
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
| | - Larissa C. Esteves
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
| | - Cassius V. Stevani
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
| | - Carla C. Oliveira
- Departamento
de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
| | - Felipe A. Dörr
- Departamento
de Análises Clínicas e Toxicológicas, Faculdade
de Ciências Farmacêuticas, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
| | - Ernani Pinto
- Departamento
de Análises Clínicas e Toxicológicas, Faculdade
de Ciências Farmacêuticas, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
- Centro
de Energia Nuclear na Agricultura, Universidade
de São Paulo, 13400-970 Piracicaba, São Paulo Brazil
| | - Flávia M.
M. Adachi
- Departamento
de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
| | - Carlos T. Hotta
- Departamento
de Bioquímica, Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo, São Paulo Brazil
| | - Erick L. Bastos
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, 05508-000 São
Paulo, São Paulo Brazil
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19
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Dehydrogenation of Betacyanins in Heated Betalain-Rich Extracts of Red Beet ( Beta vulgaris L.). Int J Mol Sci 2022; 23:ijms23031245. [PMID: 35163170 PMCID: PMC8835778 DOI: 10.3390/ijms23031245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/18/2022] [Accepted: 01/18/2022] [Indexed: 01/27/2023] Open
Abstract
Betacyanins are a group of water-soluble red-violet compounds containing nitrogen in their structure. These are biosynthesized in red beetroot (Beta vulgaris L.), a widely consumed vegetable that contains significant amounts of nutritious and bioactive compounds which are also found in dietary supplements. This contribution presents results of betacyanin thermal oxidation (resulting in dehydrogenation) interrelated with decarboxylation in selected acetate/phosphate buffers at pH 3–8 and at 85 °C, which may be of particular significance for formulation and performance of foods. Most of the reaction products were detected at the highest concentrations in the acidic solutions (pH 3–4). The main dehydrogenation reaction pathways were monitored by LC-DAD-MS/MS and were associated with decarboxylation of the principal extract pigments, betanin/isobetanin and neobetanin, at carbon positions C-2 and C-17. Additional reactions are accompanied by the 2,15-decarboxylation processes at different dehydrogenation levels with 15-decarboxy-betanin and 2,15-bidecarboxy-betanin, structurally elucidated by NMR analysis, as the distinct indicators of this route type. For other novel pigments detected, 2,15-bidecarboxy-xanbetanin, 2,15-bidecarboxy-xanneobetanin and 2,15,17-tridecarboxy-neobetanin, additional high resolution mass spectrometric analyses were performed and confirmed their molecular formulas.
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