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Munsch T, Malinowska MA, Unlubayir M, Ferrier M, Abdallah C, Gémin MP, Billet K, Lanoue A. Classification of grape seed residues from distillation industries in Europe according to the polyphenol composition highlights the influence of variety, geographical origin and color. Food Chem X 2024; 22:101362. [PMID: 38633739 PMCID: PMC11021364 DOI: 10.1016/j.fochx.2024.101362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 04/19/2024] Open
Abstract
Grape seed residues represent the raw material to produce several value-added products including polyphenol-rich extracts with nutritional and health attributes. Although the impact of variety and environmental conditions on the polyphenol composition in fresh berries is recognized, no data are available regarding grape seed residues. The chemical composition of grape seed residues from wine distilleries in France, Spain and Italy was characterized by mass spectrometry. Forty-two metabolites were identified belonging to non-galloylated and galloylated procyanidins as well as amino acids. Polyphenol concentrations in the red varieties originated from Champagne or Veneto were twice higher than in white varieties from the Loire Valley. The chemical profiles of grape seed residues were mainly classified according to the color variety with galloylated procyanidins as biomarkers of white varieties and non-galloylated procyanidins as biomarkers of red ones. The present approach might assist the selection of grape seed residues as quality raw materials for the production of polyphenol-rich extracts.
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Affiliation(s)
- Thibaut Munsch
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Magdalena Anna Malinowska
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
- Cracow University of Technology, Faculty of Chemical Engineering and Technology, 24 Warszawska St., 31-155 Cracow, Poland
| | - Marianne Unlubayir
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Manon Ferrier
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Cécile Abdallah
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Marin-Pierre Gémin
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Kévin Billet
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Arnaud Lanoue
- Université de Tours, EA 2106 « Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
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Tackling the Future Pandemics: Broad-Spectrum Antiviral Agents (BSAAs) Based on A-Type Proanthocyanidins. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238353. [PMID: 36500445 PMCID: PMC9736452 DOI: 10.3390/molecules27238353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/19/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022]
Abstract
A-type proanthocyanidins (PAC-As) are plant-derived natural polyphenols that occur as oligomers or polymers of flavan-3-ol monomers, such as (+)-catechin and (-)-epicatechin, connected through an unusual double A linkage. PAC-As are present in leaves, seeds, flowers, bark, and fruits of many plants, and are thought to exert protective natural roles against microbial pathogens, insects, and herbivores. Consequently, when tested in isolation, PAC-As have shown several biological effects, through antioxidant, antibacterial, immunomodulatory, and antiviral activities. PAC-As have been observed in fact to inhibit replication of many different human viruses, and both enveloped and non-enveloped DNA and RNA viruses proved sensible to their inhibitory effect. Mechanistic studies revealed that PAC-As cause reduction of infectivity of viral particles they come in contact with, as a result of their propensity to interact with virion surface capsid proteins or envelope glycoproteins essential for viral attachment and entry. As viral infections and new virus outbreaks are a major public health concern, development of effective Broad-Spectrum Antiviral Agents (BSAAs) that can be rapidly deployable even against future emerging viruses is an urgent priority. This review summarizes the antiviral activities and mechanism of action of PAC-As, and their potential to be deployed as BSAAs against present and future viral infections.
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Wang Y, Xu X, Chen J, Ye X, Pan H, Chen S. Improving Regulation of Polymeric Proanthocyanidins and Tea Polyphenols against Postprandial Hyperglycemia via Acid-Catalyzed Transformation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5218-5227. [PMID: 35426661 DOI: 10.1021/acs.jafc.2c01128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A novel protocol was established to synthesize novel α-glucosidase inhibitors (prodelphinidin B gallates) from proanthocyanidins from Chinese bayberry leaves (BLPs) and epigallocatechin gallate (EGCG) via acid-catalyzed transformation, which had improved regulation against postprandial hyperglycemia. Their structural-activity relationship was clarified by enzymatic kinetics, multispectroscopic method, molecular docking analysis, and sucrose loading test. ProDB MG and DG were noncompetitive inhibitors of α-glucosidase with IC50 values of 7.82 and 7.52 μg/mL, respectively. They bound with α-glucosidase spontaneously through van der Waals force and hydrogen bonding interaction, inducing the change of spatial conformation and secondary structure of α-glucosidase. Molecular docking studies suggested that proDB MG and DG attached to another one nonactive pocket with strong affinity. ProDB DG exerted significant improvement of postprandial hyperglycemia in a dose-dependent manner. Hence, proDB MG and DG, potential antidiabetic compounds, alleviate postprandial hyperglycemia by inhibiting α-glucosidase.
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Affiliation(s)
- Yi Wang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
| | - Xinlei Xu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jianle Chen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, P. R.China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, P. R.China
- Zhejiang University Zhongyuan Institute, Zhengzhou 450000, P. R. China
| | - Haibo Pan
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
| | - Shiguo Chen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, P. R. China
- Ningbo Research Institute, Zhejiang University, Ningbo 315100, P. R.China
- Zhejiang University Zhongyuan Institute, Zhengzhou 450000, P. R. China
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Nayeri T, Bineshian F, Khoshzaban F, Asl AD, Ghaffarifar F. Evaluation of the Effects of Rumex obtusifolius Seed and Leaf Extracts Against Acanthamoeba: An in vitro Study. Infect Disord Drug Targets 2021; 21:211-219. [PMID: 32321413 DOI: 10.2174/1871526520666200422111044] [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: 12/30/2019] [Revised: 01/28/2020] [Accepted: 02/17/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Acanthamoebiasis treatment is a major and challenging problem due to the presence of resistant cyst form. Many herbal extracts and their derivatives have been used against trophozoites and cysts of Acanthamoeba, but no effective therapeutic agent has yet been discovered. Therefore, the present study aimed to evaluate the effect of Rumex obtusifolius (R. obtusifolius) extracts against a clinical strain of Acanthamoeba genotype T4 in vitro. METHODS In this experimental study, after genotyping the clinical isolate, the hydroalcohlic extracts of R. obtusifolius seeds and leaves were prepared. Different concentrations (1.25, 2.5, 5 and 10 mg/ml) of extracts were tested in triplicate (24, 48 and 72h) on trophozoites and cysts of Acanthamoeba. The mortality of the parasite was assessed by trypan blue vital staining and flow cytometry analysis. RESULTS Results showed that the extract of R. obtusifolius leaves at the concentration of 10 mg/ml killed 100% of trophozoites and cysts after 72 h. However, the seed extract of R. obtusifolius had weak inhibitory effects on trophozoites and cysts of Acanthamoeba. In the presence of 10 mg/ml of hydroalcoholic seed extract of R.obtusifolius in culture medium after 72 h, 28.6% of trophozoites and 0% of cysts of Acanthamoeba were killed. After analysis by flow cytometry, seeds and leaves extract indicated apoptosis effect. Seed and leaf extracts caused 2.6% and 0.4% percent apoptosis. CONCLUSION These extracts are not promising candidates for further medicine development on acanthamoebiasis. Nonetheless, further research is necessary to clarify the effects of effective fractions of seed and leaf extracts of R. obtusifolius and their mechanisms of action.
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Affiliation(s)
- Tooran Nayeri
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farahnaz Bineshian
- Department of Parasitology & Mycology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Fariba Khoshzaban
- Department of Parasitology, Faculty of Medical Sciences, Shahed University, Tehran, Iran
| | - Abdolhossein Dalimi Asl
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Ghaffarifar
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Reeves SG, Somogyi A, Zeller WE, Ramelot TA, Wrighton KC, Hagerman AE. Proanthocyanidin Structural Details Revealed by Ultrahigh Resolution FT-ICR MALDI-Mass Spectrometry, 1H- 13C HSQC NMR, and Thiolysis-HPLC-DAD. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14038-14048. [PMID: 33170695 DOI: 10.1021/acs.jafc.0c04877] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Proanthocyanidins (condensed tannins) are important in food chemistry, agriculture, and health, driving demand for improvements in structure determination. We used ultrahigh resolution Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS) methods to determine the exact composition of individual species in heterogeneous mixtures of proanthocyanidin polymers from Sorghum bicolor grain and Neptunia lutea leaves. Fragmentation patterns obtained with FT-ICR ESI MS-MS (electrospray ionization) confirmed structural details from thiolysis-high-performance liquid chromatography (HPLC)-diode array detection (DAD) and 1H-13C heteronuclear single quantum coherence (HSQC) NMR. We found that A-type linkages were characteristic of shorter polymers in predominantly B-linked proanthocyanidin. We suggest that supramolecular complex formation between proanthocyanidins and matrix components such as 2,5-dihydroxybenzoic acid was responsible for anomalous 152 dalton peaks, incorrectly assigned as 3-O-galloylation, when using FT-ICR matrix-assisted laser desorption ionization (MALDI-MS). Our data illustrate the power of the ultrahigh resolution FT-ICR methods but include the caveat that MALDI-MS must be paired with complementary analytical tools to avoid artifacts.
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Affiliation(s)
- Savanah G Reeves
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Arpad Somogyi
- Campus Chemical Instrument Center, Mass Spectrometry and Proteomics Facility, The Ohio State University, Columbus, Ohio 43210, United States
| | - Wayne E Zeller
- ARS-USDA, U.S. Dairy Forage Research Center, Madison, Wisconsin 53706, United States
| | - Theresa A Ramelot
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Kelly C Wrighton
- Soil & Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Ann E Hagerman
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
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Rue EA, Rush MD, van Breemen RB. Procyanidins: a comprehensive review encompassing structure elucidation via mass spectrometry. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2018; 17:1-16. [PMID: 29651231 PMCID: PMC5891158 DOI: 10.1007/s11101-017-9507-3] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 04/19/2017] [Indexed: 05/04/2023]
Abstract
Procyanidins are polyphenols abundant in dietary fruits, vegetables, nuts, legumes, and grains with a variety of chemopreventive biological effects. Rapid structure determination of these compounds is needed, notably for the more complex polymeric procyanidins. We review the recent developments in the structure elucidation of procyanidins with a focus on mass spectrometric approaches, especially liquid chromatography-tandem mass spectrometry (LC-MS/MS) and matrix-assisted laser desorption ionization (MALDI) MS/MS.
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Affiliation(s)
- Emily A Rue
- University of Illinois College of Pharmacy, 833 S Wood St, Chicago, Il, 60612, USA
| | - Michael D Rush
- University of Illinois College of Pharmacy, 833 S Wood St, Chicago, Il, 60612, USA
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Hoste H, Torres-Acosta JFJ, Quijada J, Chan-Perez I, Dakheel MM, Kommuru DS, Mueller-Harvey I, Terrill TH. Interactions Between Nutrition and Infections With Haemonchus contortus and Related Gastrointestinal Nematodes in Small Ruminants. ADVANCES IN PARASITOLOGY 2016; 93:239-351. [PMID: 27238007 DOI: 10.1016/bs.apar.2016.02.025] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Interactions between host nutrition and feeding behaviour are central to understanding the pathophysiological consequences of infections of the digestive tract with parasitic nematodes. The manipulation of host nutrition provides useful options to control gastrointestinal nematodes as a component of an integrated strategy. Focussed mainly on the Haemonchus contortus infection model in small ruminants, this chapter (1) illustrates the relationship between quantitative (macro- and micro-nutrients) and qualitative (plant secondary metabolites) aspects of host nutrition and nematode infection, and (2) shows how basic studies aimed at addressing some generic questions can help to provide solutions, despite the considerable diversity of epidemiological situations and breeding systems.
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Affiliation(s)
- H Hoste
- INRA, UMR 1225 IHAP, Toulouse, France; Université de Toulouse, Toulouse, France
| | | | - J Quijada
- INRA, UMR 1225 IHAP, Toulouse, France; Université de Toulouse, Toulouse, France
| | - I Chan-Perez
- Universidad Autónoma de Yucatán, Merida, Yucatan, Mexico
| | - M M Dakheel
- University of Reading, Reading, United Kingdom
| | - D S Kommuru
- Fort Valley State University, Fort Valley, GA, United States
| | | | - T H Terrill
- Fort Valley State University, Fort Valley, GA, United States
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Impact of chemical structure of flavanol monomers and condensed tannins on in vitro anthelmintic activity against bovine nematodes. Parasitology 2016; 143:444-54. [PMID: 26888630 PMCID: PMC4800716 DOI: 10.1017/s0031182015001912] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Plants containing condensed tannins (CT) may have potential to control gastrointestinal nematodes (GIN) of cattle. The aim was to investigate the anthelmintic activities of four flavan-3-ols, two galloyl derivatives and 14 purified CT fractions, and to define which structural features of CT determine the anti-parasitic effects against the main cattle nematodes. We used in vitro tests targeting L1 larvae (feeding inhibition assay) and adults (motility assay) of Ostertagia ostertagi and Cooperia oncophora. In the larval feeding inhibition assay, O. ostertagi L1 were significantly more susceptible to all CT fractions than C. oncophora L1. The mean degree of polymerization of CT (i.e. average size) was the most important structural parameter: large CT reduced larval feeding more than small CT. The flavan-3-ols of prodelphinidin (PD)-type tannins had a stronger negative influence on parasite activity than the stereochemistry, i.e. cis- vs trans-configurations, or the presence of a gallate group. In contrast, for C. oncophora high reductions in the motility of larvae and adult worms were strongly related with a higher percentage of PDs within the CT fractions while there was no effect of size. Overall, the size and the percentage of PDs within CT seemed to be the most important parameters that influence anti-parasitic activity.
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Vasas A, Orbán-Gyapai O, Hohmann J. The Genus Rumex: Review of traditional uses, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2015; 175:198-228. [PMID: 26384001 DOI: 10.1016/j.jep.2015.09.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 09/02/2015] [Accepted: 09/03/2015] [Indexed: 05/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The approximately 200 species of the genus Rumex (sorrel, Polygonaceae) are distributed worldwide (European, Asian, African and American countries). Some species have been used traditionally as vegetables and for their medicinal properties. Based on the traditional knowledge, different phytochemical and pharmacological activities have been at the focus of research. This review aims to provide an overview of the current state of knowledge of local and traditional medical uses, chemical constituents, pharmacological activities, toxicity, and safety of Rumex species, in order to identify the therapeutic potential of Rumex species and further directions of research. MATERIALS AND METHODS The selection of relevant data was made through a search using the keyword "Rumex" in "Scopus", "Google Scholar", "Web of Science", "PubMed", and "ScienceDirect" databases. Plant taxonomy was validated by the databases "The Plant List", and "Mansfeld's Encyclopedia". Additional information on traditional use and botany was obtained from published books and MSc dissertations. RESULTS This review discusses the current knowledge of the chemistry, the in vitro and in vivo pharmacological studies carried out on the extracts, and the main active constituents, isolated from plants of genus Rumex. Although, there are about 200 species in this genus, most of the phytochemical and pharmacological studies were performed on up to 50 species. The aerial parts, leaves and roots of the plants are used as vegetables and for the treatment of several health disorders such as mild diabetes, constipation, infections, diarrhoea, oedema, jaundice, and as an antihypertensive, diuretic and analgesic and in case of skin, liver and gallbladder disorders, and inflammation. Many phytochemical investigations on this genus confirmed that Rumex species are rich in anthraquinones, naphthalenes, flavonoids, stilbenoids, triterpenes, carotenoids, and phenolic acids. Moreover, it draws the attention that high level of oxalic acid in some species can cause toxicity (kidney stones) if consumed large quantity. CONCLUSIONS This review confirms that some Rumex species have emerged as a good source of the traditional medicine for treatment of inflammation, cancer and different bacterial infections and provides new insights for further promising investigations on isolated compounds, especially quercetin 3-O-glucoside, emodin, nepodin, torachrysone, and trans-resveratrol to find novel therapeutics and aid drug discovery. In addition, hepatoprotective, antiviral and antidiabetic activities should have priority in future pharmacological studies. However, for applying species to prevent or treat various diseases, additional pharmacological studies are needed to find the mechanism of actions, safety and efficacy of them before starting clinical trials.
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Affiliation(s)
- Andrea Vasas
- Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Orsolya Orbán-Gyapai
- Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Judit Hohmann
- Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary.
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Quantifying and characterizing proanthocyanidins in cranberries in relation to urinary tract health. Anal Bioanal Chem 2013; 405:4385-95. [PMID: 23397091 DOI: 10.1007/s00216-013-6750-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/12/2012] [Accepted: 01/15/2013] [Indexed: 02/06/2023]
Abstract
The "A-type" proanthocyanidins in cranberry fruit (Vaccinium macrocarpon Ait.) are bioactive components associated with prevention of urinary tract infections (UTI). Cranberry juice, fruit (fresh and dried), functional foods, and cranberry dietary supplements are promoted for prevention of UTI and for maintenance of urinary tract health (UTH), on the basis of their content of cranberry proanthocyanidins (c-PAC) with "A-type" interflavan bonds. With increasing consumer use of cranberries for maintenance of UTH and an expanding number of commercial cranberry products of different types, the availability of unified methods for measuring levels of c-PAC is important. This review discusses quantitative and qualitative analysis of c-PAC with "A-type" interflavan bonds in relation to their biological activity for UTI prevention. The integrity (including authenticity, standardization, efficacy, and safety) of cranberry fruit, juices, and dietary supplements may now be measured by using recent advances in mass spectrometry, liquid chromatography, production of c-PAC standards, and improved simple quantitative techniques.
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Feliciano RP, Krueger CG, Shanmuganayagam D, Vestling MM, Reed JD. Deconvolution of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry isotope patterns to determine ratios of A-type to B-type interflavan bonds in cranberry proanthocyanidins. Food Chem 2012; 135:1485-93. [PMID: 22953884 DOI: 10.1016/j.foodchem.2012.05.102] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 05/04/2012] [Accepted: 05/28/2012] [Indexed: 12/22/2022]
Abstract
A method to deconvolute overlapping isotope patterns in positive mode matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was developed to determine ratios of A- to B-type interflavan bonds in proanthocyanidins that were isolated from cranberry (Vaccinium macrocarpon, Ait.) press cake (c-PAC). Precision and accuracy was validated for binary mixtures of procyanidins A2 and B2. Deconvolution of c-PAC spectra indicated that oligomers with one or more A-type interflavan bonds occur in a higher proportion than oligomers with all B-type interflavan bonds. c-PAC with at least one A-type bond accounted for more than 91% of the oligomers between trimers and undecamers. The c-PAC isotope patterns are highly repeatable, suggesting that the method can be applied to authentication, standardization and efficacy of cranberry products in relationship to urinary tract health. This is the first time MALDI-TOF MS has been used for estimating ratios of A- to B-type bonds in PAC.
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Affiliation(s)
- Rodrigo P Feliciano
- University of Wisconsin-Madison, Dept. of Food Science, 1605 Linden Drive, Madison, WI 53706, USA
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12
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Condensed tannins from Botswanan forage plants are effective priming agents of γδ T cells in ruminants. Vet Immunol Immunopathol 2012; 146:237-44. [DOI: 10.1016/j.vetimm.2012.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 03/01/2012] [Accepted: 03/05/2012] [Indexed: 11/20/2022]
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13
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Gea A, Stringano E, Brown RH, Mueller-Harvey I. In situ analysis and structural elucidation of sainfoin (Onobrychis viciifolia) tannins for high-throughput germplasm screening. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:495-503. [PMID: 21175139 DOI: 10.1021/jf103609p] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A rapid thiolytic degradation and cleanup procedure was developed for analyzing tannins directly in chlorophyll-containing sainfoin ( Onobrychis viciifolia ) plants. The technique proved suitable for complex tannin mixtures containing catechin, epicatechin, gallocatechin, and epigallocatechin flavan-3-ol units. The reaction time was standardized at 60 min to minimize the loss of structural information as a result of epimerization and degradation of terminal flavan-3-ol units. The results were evaluated by separate analysis of extractable and unextractable tannins, which accounted for 63.6-113.7% of the in situ plant tannins. It is of note that 70% aqueous acetone extracted tannins with a lower mean degree of polymerization (mDP) than was found for tannins analyzed in situ. Extractable tannins had between 4 and 29 lower mDP values. The method was validated by comparing results from individual and mixed sample sets. The tannin composition of different sainfoin accessions covered a range of mDP values from 16 to 83, procyanidin/prodelphinidin (PC/PD) ratios from 19.2/80.8 to 45.6/54.4, and cis/trans ratios from 74.1/25.9 to 88.0/12.0. This is the first high-throughput screening method that is suitable for analyzing condensed tannin contents and structural composition directly in green plant tissue.
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Affiliation(s)
- An Gea
- Chemistry and Biochemistry Laboratory, Department of Agriculture, University of Reading, 1 Earley Gate, Post Office Box 236, Reading RG6 6AT, United Kingdom
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Harshaw D, Nahar L, Vadla B, Saif-E-Naser G, Sarker S. Bioactivity of Rumex obtusifolius (Polygonaceae). ARCH BIOL SCI 2010. [DOI: 10.2298/abs1002387h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Rumex obtusifolius L. (Polygonaceae), commonly known as 'broad-leaf dock', is one of the most common Irish wayside weeds, and it also occurs in silage fields, on river banks, in ditches and on waste grounds. The ethnobotanical uses of this species include its use as an antidote to nettle, depurative, astringent, laxative, and tonic, and in the treatment of sores, blisters, burns, cancer and tumors. The bioactivities of n-hexane, dichloromethane (DCM) and methanol (MeOH) extracts of the leaves of R. obtusifolius were assessed using the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay, the newly developed micro-titer-based antimicrobial assay incorporating resazurin as an indicator of cell growth, and the brine shrimp lethality assay. The most potent free radical scavenging activity was displayed by the MeOH extract with a RC50 value of 7.80 x 10-2 mg/mL. Among the fractions obtained from solid-phase extraction (SPE) of the MeOH extract, the 50% aqueous methanolic SPE fraction exhibited the highest levels of free radical scavenging property (RC50 = 1.05 x 10-2 mg/mL). While the n-hexane extract did not show any antibacterial activity at test concentrations, the DCM extract was active only against Escherichia coli. However, the MeOH extract as well as the 50% and 80% SPE fractions of the MeOH extract showed significant antibacterial property against all bacterial strains tested. None of the extracts or fractions exhibited any significant toxicity towards brine shrimps.
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Affiliation(s)
- Diane Harshaw
- School of Biomedical Sciences, University of Ulster, BT Coleraine A, Northern Ireland, UK
| | - Lutfun Nahar
- Drug Discovery and Design Research Division, Department of Pharmacy, School of Applied Sciences, University of Wolverhampton, City Campus South, Wolverhampton, England, UK
| | - Brahmachari Vadla
- Drug Discovery and Design Research Division, Department of Pharmacy, School of Applied Sciences, University of Wolverhampton, City Campus South, Wolverhampton, England, UK
| | - Gadria Saif-E-Naser
- Department of Pharmacognosy, Faculty of Pharmacy, El-Fateh University, Tripoli, Libya
| | - Satyajit Sarker
- Department of Pharmacy, School of Applied Sciences, University of Wolverhampton, Wolverhampton, England, UK
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15
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Proanthocyanidins and a phloroglucinol derivative from Rumex acetosa L. Fitoterapia 2009; 80:483-95. [DOI: 10.1016/j.fitote.2009.08.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Accepted: 08/09/2009] [Indexed: 11/24/2022]
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16
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Jerez M, Sineiro J, Guitián E, Núñez MJ. Identification of polymeric procyanidins from pine bark by mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:4013-4018. [PMID: 19924778 DOI: 10.1002/rcm.4342] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Pine bark is an important source of polyphenolic compounds, mainly procyanidins, with reported protective effects against disease. In previous works, barks of two varieties of pine (P. pinaster and P. radiata) were extracted with ethanol, and partially purified to obtain the aqueous fractions (FA), that contained mainly polymeric procyanidins. The mean degree of polymerization was 7.9 for radiata (rFA) and 10.6 for pinaster (pFA). FAs were chromatographed on Sephadex LH-20 by using a gradient of methanol, water and acetone, to render a series of sub-fractions. In this work, the procyanidin compositions of these sub-fractions were analyzed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The mass spectra of sub-fractions from FA of P. pinaster showed signals of procyanidin polymers up to tridecamers, whereas for those from P. radiata the maximum degree of polymerization was 15. For this latter case, the MALDI-TOF mass spectra detected the presence of prodelphinidins in a small amount.
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Affiliation(s)
- Maria Jerez
- Department of Chemical Engineering, Technical School of Engineering, Avda. Lope Gomez de Marzoa, s/n. 15782 Santiago de Compostela, Spain
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17
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Monagas M, Quintanilla-López JE, Gómez-Cordovés C, Bartolomé B, Lebrón-Aguilar R. MALDI-TOF MS analysis of plant proanthocyanidins. J Pharm Biomed Anal 2009; 51:358-72. [PMID: 19410413 DOI: 10.1016/j.jpba.2009.03.035] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 03/25/2009] [Accepted: 03/30/2009] [Indexed: 10/20/2022]
Abstract
Proanthocyanidins or condensed tannins are among the most abundant polyphenols compounds in our diet and may play a key role in the prevention of cardiovascular and neurodegenerative diseases and cancer. These antioxidants are widely distributed in the plant kingdom both in food plants and in non-food plants. The biological activity of plant proanthocyanidins depends on their chemical structure and concentration. However, due to their structural diversity and complexity, the qualitative and quantitative analysis of proanthocyanidins is a difficult task. Mass spectrometry has enabled great advances in the characterization of plant proanthocyanidins. Among these techniques, MALDI-TOF MS has proved to be highly suited for the analysis of highly polydisperse and heterogeneous proanthocyanidins. The objective of the present paper was to assess the potential, limitations and future challenges of the analysis of plant proanthocyanidins by MALDI-TOF MS techniques. Firstly, the fundamental of this technique, including modes of operation, advantages and limitations, as well as quantitative and qualitative operations, have been summarized. Applications of MALDI-TOF analysis to plant proanthocyanidins reported in the last decade (1997-2008) have been extensively covered, including the sample preparation protocols and conditions used for proanthocyanidin analysis, as well as the main findings regarding the determination of the structural features of different plant proanthocyanidin types (procyanidins, propelargonidins, prodelphinidins, profisetinidins and prorobinetinidins). Finally, attempts in the assessment of the molecular weight distribution of proanthocyanidins by MALDI-TOF are described.
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Affiliation(s)
- María Monagas
- Instituto de Fermentaciones Industriales (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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18
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Zhang LL, Lin YM. Tannins from Canarium album with potent antioxidant activity. J Zhejiang Univ Sci B 2008; 9:407-15. [PMID: 18500781 DOI: 10.1631/jzus.b0820002] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The contents of total phenolics and extractable condensed tannins in the leaves, twigs and stem bark of Canarium album were determined. The structural heterogeneity of condensed tannins from stem bark was characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and nuclear magnetic resonance (NMR) analyses. The results show the predominance of signals representative of procyanidins and prodelphinidins. In addition, epicatechin and epigallocatechin polymers with galloylated procyanidin or prodelphinidin were also observed. The tannins were screened for their potential antioxidant activities using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ferric reducing/antioxidant power (FRAP) model systems. Tannins extracted from leaves, twigs and stem bark all showed a very good DPPH radical scavenging activity and ferric reducing power.
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Affiliation(s)
- Liang-liang Zhang
- Department of Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China
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Alwerdt JL, Seigler DS, Gonzalez de Mejia E, Yousef GG, Lila MA. Influence of alternative liquid chromatography techniques on the chemical complexity and bioactivity of isolated proanthocyanidin mixtures. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:1896-1906. [PMID: 18284202 DOI: 10.1021/jf073001k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Extracts rich in proanthocyanidins, which are implicated in multiple human health benefits, were comparatively separated using alternative separation methods [vacuum or open column liquid chromatography], separation matrices [Toyopearl, Sephadex, or silica gel], and degrees of subfractionation [8 or 12 subfraction series], to evaluate the influence of separation technique on the resolution of the chemical composition and the biological activity of separated proanthocyanidin mixtures in individual subfractions. Bioactivity was assessed using a DNA human topoisomerase II bioassay and structural composition by acid thiolysis (average degree of polymerization, DP) and HPLC-ESI/MS. The amount of parent fraction needed to inhibit 50% of topoisomerase II was 3.38 ng/mL with an average DP of 25.5. A 2(3) factorial analysis revealed that the vacuum and open column strategies for separation, when individually considered, did not yield significantly different results in terms of mass recovery, DP, or bioactivity; however, interactions with other factors such as matrix or subfraction series resulted in distinctive shifts in fraction profiles and biological activity. In general, Sephadex as a matrix permitted elution and separation of discrete, polymerized subfractions with potent inhibition against human topoisomerase II. Sephadex vacuum chromatography, Toyopearl open column chromatography, and Toyopearl vacuum chromatography separation techniques eluted highly polymerized proanthocyanidin mixtures, but the inhibitory bioactivity was attenuated as compared to the parent fraction, whereas Sephadex open column chromatography eluted highly polymerized subfraction mixtures that retained bioactive potential.
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Affiliation(s)
- Jessica L Alwerdt
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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20
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Lans C, Turner N, Khan T, Brauer G. Ethnoveterinary medicines used to treat endoparasites and stomach problems in pigs and pets in British Columbia, Canada. Vet Parasitol 2007; 148:325-40. [PMID: 17628343 DOI: 10.1016/j.vetpar.2007.06.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Revised: 05/18/2007] [Accepted: 06/12/2007] [Indexed: 01/27/2023]
Abstract
This paper documents the medicinal plants used to treat endoparasites and stomach problems in dogs, cats and pigs in British Columbia, Canada. Ethnoveterinary data was collected over a 6-month period in 2003. The majority of the information on pets came from 2 naturopaths, 10 herbalists, 5 dog trainers, breeders and pet shop owners, 9 holistic veterinarians and 6 of 27 organic farmers. Two pig farmers joined the study in the final stages. The following plants were used as anthelmintics: Artemisia cina O. Berg and C.F. Schmidt, Artemisia vulgaris L., Artemisia annua, Calendula officinalis L., Echinacea purpurea (L.) Moench (all Asteraceae), Mentha piperita L. and Salvia officinalis L. (Lamiaceae) (Allium sativum L. (Alliaceae), Cucurbita pepo L. (Cucurbitaceae), Eugenia caryophyllata Thunb (Myrtaceae), Gentiana lutea L. (Gentianaceae), Hydrastis canadensis L. (Ranunculaceae), Juglans nigra L. (Juglandaceae), Olea europaea L. (Oleaceae) and Ruta graveolens L. (Rutaceae)). Stomach problems were treated with: Achillea millefolium L. (Asteraceae), Aloe vera (L.) Burm. f. (Asphodelaceae), Elytrigia repens (L.) Desv. ex Nevski (Poaceae), Frangula purshiana (DC.) Cooper (Rhamnaceae), Juniperus communis L. (Cupressaceae), Melissa officinalis L. and M. piperita L. (Lamiaceae), Petroselinum crispum L. (Apiaceae), Plantago major L. and Plantago ovata Forssk. (Plantaginaceae) Rumex crispus L. and Rumex obtusifolius L. (Polygonaceae), Ulmus fulva Michx. (Ulmaceae) and Zingiber officinalis Roscoe (Zingiberaceae). There is insufficient information available to assess the anthelmintic efficacies of C. officinalis, Salvia officinalis, Eugenia caryophyllata and O. europaea; the other plants have mid- to high-level validity for their ethnoveterinary uses.
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Affiliation(s)
- Cheryl Lans
- BCICS, University of Victoria, British Columbia V8W 2Y2, Canada.
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