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Papaefthimiou M, Kontou PI, Bagos PG, Braliou GG. Integration of Antioxidant Activity Assays Data of Stevia Leaf Extracts: A Systematic Review and Meta-Analysis. Antioxidants (Basel) 2024; 13:692. [PMID: 38929131 PMCID: PMC11201069 DOI: 10.3390/antiox13060692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/22/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Stevia rebaudiana Bertoni, a no-calorie natural sweetener, contains a plethora of polyphenols that exert antioxidant properties with potential medicinal significance. Due to the variety of functional groups, polyphenols exhibit varying solubility depending on the nature of the extraction solvents (water, organic, or their mixtures, defined further on as hydroalcoholic extracts). In the present study, we performed a systematic review, following PRISMA guidelines, and meta-analysis, synthesizing all available data from 45 articles encompassing 250 different studies. Our results showed that the total phenolic content (TPC) of hydroalcoholic and aqueous extracts presents higher values (64.77 and 63.73 mg GAE/g) compared to organic extracts (33.39). Total flavonoid content (TFC) was also higher in aqueous and hydroalcoholic extracts; meta-regression analysis revealed that outcomes in different measuring units (mg QE/g, mg CE/g, and mg RUE/g) do not present statistically significant differences and can be synthesized in meta-analysis. Using meta-regression analysis, we showed that outcomes from the chemical-based ABTS, FRAP, and ORAC antioxidant assays for the same extract type can be combined in meta-analysis because they do not differ statistically significantly. Meta-analysis of ABTS, FRAP, and ORAC assays outcomes revealed that the antioxidant activity profile of various extract types follows that of their phenolic and flavonoid content. Using regression meta-analysis, we also presented that outcomes from SOD, CAT, and POX enzymatic antioxidant assays are independent of the assay type (p-value = 0.905) and can be combined. Our study constitutes the first effort to quantitatively and statistically synthesize the research results of individual studies using all methods measuring the antioxidant activity of stevia leaf extracts. Our results, in light of evidence-based practice, uncover the need for a broadly accepted, unified, methodological strategy to perform antioxidant tests, and offer documentation that the use of ethanol:water 1:1 mixtures or pure water can more efficiently extract stevia antioxidant compounds.
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Affiliation(s)
- Maria Papaefthimiou
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
| | | | - Pantelis G. Bagos
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
| | - Georgia G. Braliou
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
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2
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Khaksar G, Chaichana N, Assatarakul K, Sirikantaramas S. Caffeoylquinic acid profiling: comparative analysis in yerba mate, Indian camphorweed, and stevia extracts with emphasis on the influence of brewing conditions and cold storage in yerba mate infusion. PeerJ 2024; 12:e17250. [PMID: 38726376 PMCID: PMC11080990 DOI: 10.7717/peerj.17250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 03/25/2024] [Indexed: 05/12/2024] Open
Abstract
Herbal infusions exhibit diverse pharmacological effects, such as antioxidant, anti-inflammatory, anticancer, antihypertensive, and antineurodegenerative activities, which can be attributed to the high content of phenolic compounds (e.g., caffeoylquinic acids (CQAs)). In this study, we used ultraperformance liquid chromatography to determine the content of CQAs in the methanolic extracts of model herbs, namely, yerba mate (Ilex paraguariensis), stevia (Stevia rebaudiana), and Indian camphorweed (Pluchea indica (L.) Less.). The results revealed that yerba mate had the highest total CQA content (108.05 ± 1.12 mg/g of dry weight). Furthermore, we evaluated the effect of brewing conditions and storage at 4 °C under dark and light conditions on the antioxidant property and total phenolic and CQA contents of a yerba mate infusion. The analysis of the yerba mate infusions prepared with different steeping times, dried leaf weights, and water temperatures revealed that the amount of extracted CQAs was maximized (∼175 mg/150 mL) when 6 g of dried leaves were steeped in hot water for 10 min. A total of 10-day refrigerated storage resulted in no significant changes in the antioxidant activity and total phenolic and CQA contents of an infusion kept in a brown container (dark). However, the antioxidant properties and total phenolic and CQA contents were negatively affected when kept in a clear container, suggesting the detrimental effect of light exposure. Our study provides practical recommendations for improving the preparation and storage of herbal infusions, thus catering to the needs of consumers, food scientists, and commercial producers. Moreover, it is the first study of the influence of light exposure on the content of crucial quality attributes within plant-based beverages.
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Affiliation(s)
- Gholamreza Khaksar
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Nantachaporn Chaichana
- Department of Food Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Kitipong Assatarakul
- Department of Food Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Supaart Sirikantaramas
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Omics Sciences and Bioinformatics Center, Chulalongkorn University, Bangkok, Thailand
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3
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Valanciene E, Malys N. Advances in Production of Hydroxycinnamoyl-Quinic Acids: From Natural Sources to Biotechnology. Antioxidants (Basel) 2022; 11:antiox11122427. [PMID: 36552635 PMCID: PMC9774772 DOI: 10.3390/antiox11122427] [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: 10/19/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
Hydroxycinnamoyl-quinic acids (HCQAs) are polyphenol esters formed of hydroxycinnamic acids and (-)-quinic acid. They are naturally synthesized by plants and some micro-organisms. The ester of caffeic acid and quinic acid, the chlorogenic acid, is an intermediate of lignin biosynthesis. HCQAs are biologically active dietary compounds exhibiting several important therapeutic properties, including antioxidant, antimicrobial, anti-inflammatory, neuroprotective, and other activities. They can also be used in the synthesis of nanoparticles or drugs. However, extraction of these compounds from biomass is a complex process and their synthesis requires costly precursors, limiting the industrial production and availability of a wider variety of HCQAs. The recently emerged production through the bioconversion is still in an early stage of development. In this paper, we discuss existing and potential future strategies for production of HCQAs.
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Affiliation(s)
- Egle Valanciene
- Bioprocess Research Centre, Faculty of Chemical Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
- Correspondence: (E.V.); (N.M.)
| | - Naglis Malys
- Bioprocess Research Centre, Faculty of Chemical Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
- Department of Organic Chemistry, Faculty of Chemical Technology, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
- Correspondence: (E.V.); (N.M.)
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Zuo J, Zhang TH, Xiong L, Huang L, Peng C, Zhou QM, Dai O. Two Pairs of 7,7'-Cyclolignan Enantiomers with Anti-Inflammatory Activities from Perilla frutescens. Molecules 2022; 27:molecules27186102. [PMID: 36144834 PMCID: PMC9506341 DOI: 10.3390/molecules27186102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/09/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Perilla frutescens (L.) Britt. (Labiatae), a medicinal plant, has been widely used for the therapy of multiple diseases since about 1800 years ago. It has been demonstrated that the extracts of P. frutescens exert significant anti-inflammatory effects. In this research, two pairs of 7,7′-cyclolignan enantiomers, possessing a cyclobutane moiety, (+)/(−)-perfrancin [(+)/(−)-1] and (+)/(−)-magnosalin [(+)/(−)-2], were separated from P. frutescens leaves. The present study achieved the chiral separation and determined the absolute configuration of (±)-1 and (±)-2. Compounds (+)-1 and (−)-1 have notable anti-inflammatory effects by reducing the secretion of pro-inflammatory factors (NO, TNF-α and IL-6) and the expression of pro-inflammatory mediators (iNOS and COX-2). These findings indicate that cyclolignans are effective substances of P. frutescens with anti-inflammatory activity. The present study partially elucidates the mechanisms underlying the effects of P. frutescens.
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Affiliation(s)
- Jing Zuo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Tian-Hao Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Liang Xiong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lu Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qin-Mei Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Correspondence: (Q.-M.Z.); (O.D.)
| | - Ou Dai
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Innovative Medicine Ingredients of Southwest Specialty Medicinal Materials, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Correspondence: (Q.-M.Z.); (O.D.)
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Moyo B, Tavengwa NT, Madala NE. Diverse chemical modifications of the chlorogenic acid composition of Viscum combreticola Engl.: A premise for the state of readiness against excessive sunlight exposure. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 233:112501. [PMID: 35751972 DOI: 10.1016/j.jphotobiol.2022.112501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/08/2022] [Accepted: 06/11/2022] [Indexed: 12/11/2022]
Abstract
Mistletoe plants that are positioned on the canopy of their hosts are more susceptible to UV radiation exposure. These aerial plants are resistant to damage by UV radiation due the presence of epidermal constituents such as the cuticle, cork layer, trichomes and antioxidant secondary metabolites. In response to the photo-oxidative stress associated with UV exposure, plants generally deploy photo-protective responsive mechanisms that involve the biosynthesis of UV absorbing phenolic compounds such as chlorogenic acids (CGAs). The hydroxycinnamic acid moieties of these CGAs are predominantly in the trans configuration, naturally. However, excessive sunlight exposure of plants containing these compounds can result in geometrical isomerisation, characterized by the formation of cis isomers. Therefore, in this study, the effect of UV light radiation on the CGA composition of Viscum combreticola Engl. (Santalacaeae) plants using an in vitro model was unravelled through UHPLC-q-TOF-MS-based metabolic profiling. Interestingly, the findings of this study revealed that this plant has a diverse chemical composition of CGAs that is characterized by epimerization, monoacylation, homodiacylation and heterodiacylation of the quinic acid (QA), thereby, contributing to the state of readiness in these plants against sunlight or UV exposure. In addition to the commonly reported cinnamoyl containing heterodiacylated CGAs, hydroxybenzoyl containing heterodiacylated CGAs were also reported in this study. Moreover, cis isomers (24 in total) of some CGAs were identified in the non-irradiated samples and the formation of these compounds has been reported to help plants in the mitigation of photo-oxidative stress. An additional 28 cis isomers of CGAs and HCA derivatives were observed in the UV-irradiated samples, hence, further increasing the complexity of the metabolome of this plant, with a total of 108 compounds identified in this study. The presence of epimers, positional and geometrical isomers of these compounds could be a biochemical strategy to maximize the chemical arsenal of this plant to withstand the photo-oxidative stress posed by UV radiation from the sunlight. Due to purported pharmacological properties associated with the identified compounds these parasitic plants can be a rich source of prospective therapeutic compounds that can be employed as drug discovery leads. Moreover, UV radiation might be essential in future to produce potent drugs since plants naturally produce these compounds in low quantities.
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Affiliation(s)
- Babra Moyo
- Department of Biochemistry and Microbiology, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa; Department of Food Science and Technology, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa
| | - Nikita Tawanda Tavengwa
- Department of Chemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa
| | - Ntakadzeni Edwin Madala
- Department of Biochemistry and Microbiology, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa.
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Ianni F, Barola C, Blasi F, Moretti S, Galarini R, Cossignani L. Investigation on chlorogenic acid stability in aqueous solution after microwave treatment. Food Chem 2022; 374:131820. [PMID: 35021582 DOI: 10.1016/j.foodchem.2021.131820] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 11/19/2021] [Accepted: 12/05/2021] [Indexed: 11/17/2022]
Abstract
Recently, several health benefits associated with the consumption of foods rich in chlorogenic acid (5-CQA) have been reported. However, an important issue is its low stability during extraction and food processing, resulting in isomerization to neochlorogenic and cryptochlorogenic acids and the formation of further degradation products. This work describes the evaluation of 5-CQA reactivity in commercial waters after microwave treatment. An optimized HPLC-UV method was used to monitor 5-CQA conversion to its main isomers, while LC-HRMS/MS was performed for the elucidation of transformation products. Results revealed different degrees of isomerization in 5-CQA depending on the water sample, and the formation of oxidation derivatives of CQA isomers. This study highlights the importance of analytical monitoring of food compounds, during microwave treatment for example. In the case of 5-CQA, understanding of the degradation process would allow better preservation of bioactive constituent in foods and beverages and health promoting effects.
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Affiliation(s)
- Federica Ianni
- Food Science and Nutrition Section, Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - Carolina Barola
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche "Togo Rosati", 06126 Perugia, Italy
| | - Francesca Blasi
- Food Science and Nutrition Section, Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - Simone Moretti
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche "Togo Rosati", 06126 Perugia, Italy
| | - Roberta Galarini
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche "Togo Rosati", 06126 Perugia, Italy.
| | - Lina Cossignani
- Food Science and Nutrition Section, Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy; Center for Perinatal and Reproductive Medicine, Santa Maria della Misericordia University Hospital, University of Perugia, Sant'Andrea delle Fratte, 06132 Perugia, Italy.
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7
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Magaña AA, Kamimura N, Soumyanath A, Stevens JF, Maier CS. Caffeoylquinic acids: chemistry, biosynthesis, occurrence, analytical challenges, and bioactivity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:1299-1319. [PMID: 34171156 PMCID: PMC9084498 DOI: 10.1111/tpj.15390] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/15/2021] [Accepted: 06/19/2021] [Indexed: 05/02/2023]
Abstract
Caffeoylquinic acids (CQAs) are specialized plant metabolites we encounter in our daily life. Humans consume CQAs in mg-to-gram quantities through dietary consumption of plant products. CQAs are considered beneficial for human health, mainly due to their anti-inflammatory and antioxidant properties. Recently, new biosynthetic pathways via a peroxidase-type p-coumaric acid 3-hydroxylase enzyme were discovered. More recently, a new GDSL lipase-like enzyme able to transform monoCQAs into diCQA was identified in Ipomoea batatas. CQAs were recently linked to memory improvement; they seem to be strong indirect antioxidants via Nrf2 activation. However, there is a prevalent confusion in the designation and nomenclature of different CQA isomers. Such inconsistencies are critical and complicate bioactivity assessment since different isomers differ in bioactivity and potency. A detailed explanation regarding the origin of such confusion is provided, and a recommendation to unify nomenclature is suggested. Furthermore, for studies on CQA bioactivity, plant-based laboratory animal diets contain CQAs, which makes it difficult to include proper control groups for comparison. Therefore, a synthetic diet free of CQAs is advised to avoid interferences since some CQAs may produce bioactivity even at nanomolar levels. Biotransformation of CQAs by gut microbiota, the discovery of new enzymatic biosynthetic and metabolic pathways, dietary assessment, and assessment of biological properties with potential for drug development are areas of active, ongoing research. This review is focused on the chemistry, biosynthesis, occurrence, analytical challenges, and bioactivity recently reported for mono-, di-, tri-, and tetraCQAs.
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Affiliation(s)
- Armando Alcázar Magaña
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health and Science University, Portland, OR, USA
| | - Naofumi Kamimura
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Amala Soumyanath
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health and Science University, Portland, OR, USA
- Department of Neurology, Oregon Health and Science University, Portland, OR, USA
| | - Jan F. Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health and Science University, Portland, OR, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, USA
| | - Claudia S. Maier
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health and Science University, Portland, OR, USA
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8
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Masike K, Stander MA, de Villiers A. Recent applications of ion mobility spectrometry in natural product research. J Pharm Biomed Anal 2021; 195:113846. [PMID: 33422832 DOI: 10.1016/j.jpba.2020.113846] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022]
Abstract
Ion mobility spectrometry (IMS) is a rapid separation technique capable of extracting complementary structural information to chromatography and mass spectrometry (MS). IMS, especially in combination with MS, has experienced inordinate growth in recent years as an analytical technique, and elicited intense interest in many research fields. In natural product analysis, IMS shows promise as an additional tool to enhance the performance of analytical methods used to identify promising drug candidates. Potential benefits of the incorporation of IMS into analytical workflows currently used in natural product analysis include the discrimination of structurally similar secondary metabolites, improving the quality of mass spectral data, and the use of mobility-derived collision cross-section (CCS) values as an additional identification criterion in targeted and untargeted analyses. This review aims to provide an overview of the application of IMS to natural product analysis over the last six years. Instrumental aspects and the fundamental background of IMS will be briefly covered, and recent applications of the technique for natural product analysis will be discussed to demonstrate the utility of the technique in this field.
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Affiliation(s)
- Keabetswe Masike
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Maria A Stander
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa; Central Analytical Facility, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - André de Villiers
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa.
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Lyu Y, Gu X, Mao Y. Green Composite of Instant Coffee and Poly(vinyl alcohol): An Excellent Transparent UV-Shielding Material with Superior Thermal-Oxidative Stability. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00413] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yadong Lyu
- Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Xiaohong Gu
- Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Yimin Mao
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
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Lee BW, Park JG, Ha TKQ, Pham HTT, An JP, Noh JR, Lee CH, Oh WK. Constituents of the Edible Leaves of Melicope pteleifolia with Potential Analgesic Activity. JOURNAL OF NATURAL PRODUCTS 2019; 82:2201-2210. [PMID: 31393125 DOI: 10.1021/acs.jnatprod.9b00224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Melicope pteleifolia has long been consumed as a popular vegetable and tea in Southeast Asian countries, including Malaysia and southern mainland China, and is effective in the treatment of colds and inflammation. In the search for active metabolites that can explain its traditional use as an antipyretic, six new phloroacetophenone derivatives (3-8) along with seven known compounds (1, 2, and 9-13) were isolated from the leaves of M. pteleifolia. Their chemical structures were confirmed by extensive spectroscopic analysis including NMR, IR, ECD, and HRMS. All compounds isolated from the leaves of M. pteleifolia (1-13) have a phloroacetophenone skeleton. Notably, the new compound 8 contains an additional cyclobutane moiety in its structure. The bioactivities of the isolated compounds were evaluated, and compounds 1, 6, and 7 inhibited tumor necrosis factor-α-induced prostaglandin E2. Moreover, the major constituent, 3,5-di-C-β-d-glucopyranosyl phloroacetophenone (1), was found to be responsible for the antipyretic activity of M. pteleifolia based on in vivo experiments.
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Affiliation(s)
- Ba-Wool Lee
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
| | - Jung-Geun Park
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
| | - Thi Kim Quy Ha
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
| | - Ha Thanh Tung Pham
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
| | - Jin-Pyo An
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
| | - Jung-Ran Noh
- Laboratory Animal Resource Center , Korea Research Institute of Bioscience and Biotechnology , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center , Korea Research Institute of Bioscience and Biotechnology , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Won-Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy , Seoul National University , Seoul 08826 , Republic of Korea
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11
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Asamenew G, Kim HW, Lee MK, Lee SH, Lee S, Cha YS, Lee SH, Yoo SM, Kim JB. Comprehensive characterization of hydroxycinnamoyl derivatives in green and roasted coffee beans: A new group of methyl hydroxycinnamoyl quinate. Food Chem X 2019; 2:100033. [PMID: 31432017 PMCID: PMC6694859 DOI: 10.1016/j.fochx.2019.100033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to quantitatively characterize 19 green and roasted coffee beans by ultra-performance liquid chromatography coupled with diode array detector and quadrupole time-of-flight mass spectrometry. A total of 57 phenolic acids including nine methyl ester of mono-, di-caffeoylquinic acid, and feruloylquinic acid were identified. The methyl hydroxycinnamoyl quinates are reported for the first time from Coffea arabica and Coffea robusta. The total phenolic content ranged from 5628 ± 227 to 8581 ± 109 mg/100 g dry weight (DW) in green, and from 791 ± 63 to 1891 ± 37 mg/100 g DW roasted beans. The methyl caffeoylquinates accounted for 2.1% of the total phenolic acids. The result suggested that the phenolic composition was affected by the type of species, cultivars, and roasting process. Hence, to retain the balance between health beneficial phenolics and sensory attributes, optimization of roasting condition specific to the cultivar type substantially required.
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Affiliation(s)
- Gelila Asamenew
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Heon-Woong Kim
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Min-Ki Lee
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Seon-Hye Lee
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Suji Lee
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Youn-Soo Cha
- Department of Food Science and Human Nutrition, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, Republic of Korea
| | - Sang Hoon Lee
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Seon Mi Yoo
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Jung-Bong Kim
- National Institute of Agricultural Science, Rural Development Administration, 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, Republic of Korea
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12
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Lee BW, Ha TKQ, Pham HTT, Hoang QH, Tran VO, Oh WK. Hydroxyoleoside-type seco-iridoids from Symplocos cochinchinensis and their insulin mimetic activity. Sci Rep 2019; 9:2270. [PMID: 30783120 PMCID: PMC6381099 DOI: 10.1038/s41598-018-38013-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 11/15/2018] [Indexed: 01/15/2023] Open
Abstract
As part of an ongoing study of new insulin mimetic agents from medicinal plants, the 70% EtOH extract of Symplocos cochinchinensis was found to have a stimulatory effect on glucose uptake in 3T3-L1 adipocyte cells. The intensive targeted isolation of this active extract resulted in ten new hydroxyoleoside-type compounds conjugated with a phenolic acid and monoterpene (1–6 and 8–11), as well as four known compounds (7 and 12–14). The chemical structures of the new compounds were determined based on spectroscopic data analysis (1H and 13C NMR, HSQC, HMBC, NOESY and MS). The absolute configurations of the isolated compounds were determined by electronic circular dichroism (ECD) analysis of derivatives obtained after a series of reactions, such as those with dirhodium (ІІ) tetrakis (trifluoroacetate) and dimolybdenum (ІІ) tetraacetate. In vitro, compounds 3, 7 and 8 moderately increased the 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]-D-glucose (2-NBDG) uptake level in differentiated 3T3-L1 adipocytes. For further studies, we evaluated their effects on the expression of glucose transporter-4 (GLUT4), its translocation, protein tyrosine phosphatase 1B (PTP1B) inhibition and expression of phosphorylated Akt. Our results strongly suggest that the traditional uses of this plant can be described as active constituents by hydroxyoleoside-type compounds.
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Affiliation(s)
- Ba-Wool Lee
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Thi Kim Quy Ha
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Ha Thanh Tung Pham
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Quynh Hoa Hoang
- Department of Botany, Hanoi University of Pharmacy, Hanoi, Vietnam
| | - Van On Tran
- Department of Botany, Hanoi University of Pharmacy, Hanoi, Vietnam
| | - Won Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea.
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13
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Pacifico S, Piccolella S, Nocera P, Tranquillo E, Dal Poggetto F, Catauro M. New insights into phenol and polyphenol composition of Stevia rebaudiana leaves. J Pharm Biomed Anal 2018; 163:45-57. [PMID: 30286435 DOI: 10.1016/j.jpba.2018.09.046] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 12/01/2022]
Abstract
The diversity in phenols and polyphenols of stevia leaf has been simplified applying sequential fractionation techniques on its ethanol extract through ultrasound assisted maceration. Two of the fractions obtained by reverse-phase column chromatography resulted differently active in an extensive antioxidant and cytotoxic screening. Both fractions were chemically profiled by ultra-performance liquid chromatography (UHPLC) coupled with electrospray ionization (ESI) quadrupole/time-of-flight (QqTOF) mass spectrometry (MS). One of the fractions was composed mainly of chlorogenic acids and flavonol triglycosides, whereas the other was rich in flavonoids mono- and diglycosides and in their hydroxycinnamoyl derivatives. Among the fifty compounds identified, non-phenol metabolites, such as benzyl primeveroside and roseoside, as well as a lignan polyphenol (5'), are reported for the first time as constituents of the Stevia leaf.
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Affiliation(s)
- Severina Pacifico
- Department of Environmental Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, I-81100 Caserta, Italy.
| | - Simona Piccolella
- Department of Environmental Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, I-81100 Caserta, Italy
| | - Paola Nocera
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia, 26, I-80126 Naples, Italy
| | - Elisabetta Tranquillo
- Department of Industrial and Information Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, I-81031 Aversa, Italy
| | | | - Michelina Catauro
- Department of Industrial and Information Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, I-81031 Aversa, Italy
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14
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Gutiérrez Ortiz AL, Berti F, Navarini L, Crisafulli P, Colomban S, Forzato C. Aqueous extracts of walnut (Juglans regia L.) leaves: quantitative analyses of hydroxycinnamic and chlorogenic acids. J Chromatogr Sci 2018; 56:753-760. [PMID: 29762631 PMCID: PMC6296405 DOI: 10.1093/chromsci/bmy041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 03/02/2018] [Indexed: 12/18/2022]
Abstract
Identification of both hydroxycinnamic and chlorogenic acids present in aqueous extracts of walnut leaves (Juglans regia L.) were carried out by using, for the first time, standard compounds not commercially available for qualitative identification. In particular, in addition to caffeic, ferulic, p-coumaric and sinapic acids, cis and trans mono-caffeoylquinic, dicaffeoylquinic, mono-feruloylquinic and cis and trans mono-p-coumaroylquinic acid isomers were detected and quantified by Ultra High Pressure Liquid Chromatography and the seasonal variations of these secondary metabolites were investigated.
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Affiliation(s)
| | - Federico Berti
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, Trieste, Italy
| | | | - Paola Crisafulli
- Aromalab, illycaffè S.p.A., AREA Science Park, Padriciano 99, Trieste, Italy
| | - Silvia Colomban
- Aromalab, illycaffè S.p.A., AREA Science Park, Padriciano 99, Trieste, Italy
| | - Cristina Forzato
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, Trieste, Italy
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15
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Chen L, Tan GJT, Pang X, Yuan W, Lai S, Yang H. Energy Regulated Nutritive and Antioxidant Properties during the Germination and Sprouting of Broccoli Sprouts ( Brassica oleracea var. italica). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6975-6985. [PMID: 29889516 DOI: 10.1021/acs.jafc.8b00466] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The role of energy status in germination and sprouting of broccoli seeds was investigated by exogenous ATP and DNP treatments. With the synthesis of adenylates from 38.82 to 142.69 mg·100 g-1 DW, the nutritive components (soluble sugar, proteins, pigments, and phenolics) and AAs were increased during germination and early sprouting (day 5). Elements of the BoSnRK2 pathway were down-regulated by more than 2 fold under the energy charge feedback inhibition. At the end of sprouting (day 7), energy depletion resulted in slowdown or reduced nutritional accumulation and antioxidant capacities. Exogenous ATP depressed the BoSnRK2 pathway by maintaining the energy status at high levels and further promoted the nutrition and antioxidant levels. It also prevented the energy depletion at day 7. On the contrary, DNP reduced the ATP contents (16.10-26.86%) and activated the BoSnRK2 pathway. It also notably suppressed the energy-consuming activities including germination, sprouts growth, and secondary metabolic synthesis.
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Affiliation(s)
- Lin Chen
- Food Science and Technology Programme, c/o Department of Chemistry , National University of Singapore , Singapore 117543 , Singapore
- National University of Singapore (Suzhou) Research Institute , 377 Lin Quan Street, Suzhou Industrial Park , Suzhou , Jiangsu 215123 , P. R. China
| | - Glenna Jue Tong Tan
- Food Science and Technology Programme, c/o Department of Chemistry , National University of Singapore , Singapore 117543 , Singapore
| | - Xinyi Pang
- Food Science and Technology Programme, c/o Department of Chemistry , National University of Singapore , Singapore 117543 , Singapore
| | - Wenqian Yuan
- Food Science and Technology Programme, c/o Department of Chemistry , National University of Singapore , Singapore 117543 , Singapore
| | - Shaojuan Lai
- Guangzhou Pulu Medical Technology Co., Ltd., Guangzhou , Guangdong 510800 , P. R. China
| | - Hongshun Yang
- Food Science and Technology Programme, c/o Department of Chemistry , National University of Singapore , Singapore 117543 , Singapore
- National University of Singapore (Suzhou) Research Institute , 377 Lin Quan Street, Suzhou Industrial Park , Suzhou , Jiangsu 215123 , P. R. China
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16
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Feng ZM, Xu K, Wang W, Du N, Zhang JH, Yang YN, Jiang JS, Zhang PC. Two new thiophene polyacetylene glycosides from Atractylodes lancea. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:531-537. [PMID: 29614875 DOI: 10.1080/10286020.2018.1458841] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/26/2018] [Indexed: 05/20/2023]
Abstract
Phytochemical investigation on the rhizomes of Atractylodes lancea led to the isolation of two new thiophene polyacetylene glycosides (1 and 2) and six known compounds (3-8). Their structures were elucidated based on the extensive spectroscopic data (UV, IR, 1D and 2D NMR, and HRESIMS). The absolute configurations of new compounds were established by calculated and experimental circular dichroism. All the compounds were assessed on the lipopolysaccharide-induced NO production in BV2 cells and compounds 3, 7, and 8 showed moderate inhibitory activities.
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Affiliation(s)
- Zi-Ming Feng
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100050 , China
| | - Kuo Xu
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100050 , China
| | - Wei Wang
- b Beijing Centre for Physical and Chemical Analysis , Beijing 100089 , China
| | - Ning Du
- b Beijing Centre for Physical and Chemical Analysis , Beijing 100089 , China
| | - Jing-Hua Zhang
- b Beijing Centre for Physical and Chemical Analysis , Beijing 100089 , China
| | - Ya-Nan Yang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100050 , China
| | - Jian-Shuang Jiang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100050 , China
| | - Pei-Cheng Zhang
- a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing 100050 , China
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17
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Gamma radiation treatment activates glucomoringin synthesis in Moringa oleifera. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2017. [DOI: 10.1016/j.bjp.2017.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Masike K, Tugizimana F, Ndlovu N, Smit E, du Preez L, Dubery I, Madala E. Deciphering the influence of column chemistry and mass spectrometry settings for the analyses of geometrical isomers of L-chicoric acid. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1052:73-81. [PMID: 28364699 DOI: 10.1016/j.jchromb.2017.03.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 02/01/2023]
Abstract
Resolving the chemo-diversity of plant extract samples is an essential step for in-depth analyses of natural products which often exhibit promising biological activities. One of the challenges in this endeavor has been the confident differentiation of geometrical isomers. In this study, we investigated these aspects in chromatography (column chemistry and mobile phase composition) and mass spectrometry settings with regards to better differentiation of geometrical isomers. A standard of a hydroxycinnamic acid (HCA) derivative, L-chicoric acid (L-CA) - a di-acylated caffeoyltartaric acid ester found in a number of plant families - was used. Geometrical isomers of L-CA were formed by exposing the compound to ultraviolet (UV) radiation, to mimic the natural environment. The high performance liquid chromatography photo-diode array (HPLC-PDA) and ultra-high performance liquid chromatography mass spectrometry (UHPLC-MS) platforms were used to analyze the trans and cis geometrical isomers of L-CA. The HPLC-PDA results confirmed the generation of two cis geometrical isomers following UV exposure of the authentic trans-L-CA standard. Furthermore, the HPLC-PDA analyses demonstrated that the changes in both column chemistry (reverse-phase: C18, biphenyl, phenyl-hexyl and pentafluorophenyl propyl) and mobile phase composition (aqueous acetonitrile and aqueous methanol) affect the chromatographic elution profiles of the L-CA isomers. The MS results, on the other hand, revealed undisputed fragmentation differences between the geometrical isomers of L-CA. Thus, this study demonstrates that the identification of the L-CA isomers can be achieved more efficiently and confidently with good chromatography coupled to well-optimized mass spectrometry conditions, a requirement which has been proven impossible with other types of HCA derivatives. Moreover, differences in the binding modes of L-CA geometrical isomers to the HIV type 1 integrase enzyme were observed, suggesting a synergistic anti-HIV-1 activity of these isomers.
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Affiliation(s)
- Keabetswe Masike
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Fidele Tugizimana
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Nombuso Ndlovu
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Elize Smit
- Department of Chemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Louis du Preez
- Department of Microbiology, Biochemistry and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Ian Dubery
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Edwin Madala
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa.
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19
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Clifford M, Jaganath IB, Ludwig IA, Crozier A. Chlorogenic acids and the acyl-quinic acids: discovery, biosynthesis, bioavailability and bioactivity. Nat Prod Rep 2017; 34:1391-1421. [DOI: 10.1039/c7np00030h] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review is focussed upon the acyl-quinic acids, the most studied group within theca.400 chlorogenic acids so far reported.
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Affiliation(s)
- Michael N. Clifford
- School of Biosciences and Medicine
- Faculty of Health and Medical Sciences
- University of Surrey
- Guildford
- UK
| | - Indu B. Jaganath
- Malaysian Agricultural Research and Development Institute
- Kuala Lumpur
- Malaysia
| | - Iziar A. Ludwig
- Department of Food Technology
- University of Lleida
- Lleida
- Spain
| | - Alan Crozier
- Department of Nutrition
- University of California
- Davis
- USA
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20
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The Effect of Geometrical Isomerism of 3,5-Dicaffeoylquinic Acid on Its Binding Affinity to HIV-Integrase Enzyme: A Molecular Docking Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:4138263. [PMID: 27829863 PMCID: PMC5088326 DOI: 10.1155/2016/4138263] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/18/2016] [Indexed: 02/02/2023]
Abstract
A potent plant-derived HIV-1 inhibitor, 3,5-dicaffeoylquinic acid (diCQA), has been shown to undergo isomerisation upon UV exposure where the naturally occurring 3 trans ,5 trans -diCQA isomer gives rise to the 3 cis ,5 trans -diCQA, 3 trans ,5 cis -diCQA, and 3 cis ,5 cis -diCQA isomers. In this study, inhibition of HIV-1 INT by UV-induced isomers was investigated using molecular docking methods. Here, density functional theory (DFT) models were used for geometry optimization of the 3,5-diCQA isomers. The YASARA and Autodock VINA software packages were then used to determine the binding interactions between the HIV-1 INT catalytic domain and the 3,5-diCQA isomers and the Discovery Studio suite was used to visualise the interactions between the isomers and the protein. The geometrical isomers of 3,5-diCQA were all found to bind to the catalytic core domain of the INT enzyme. Moreover, the cis geometrical isomers were found to interact with the metal cofactor of HIV-1INT, a phenomenon which has been linked to antiviral potency. Furthermore, the 3 trans ,5 cis -diCQA isomer was also found to interact with both LYS156 and LYS159 which are important residues for viral DNA integration. The differences in binding modes of these naturally coexisting isomers may allow wider synergistic activity which may be beneficial in comparison to the activities of each individual isomer.
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21
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Makola MM, Madala NE, Dubery IA, Steenkamp PA, Kabanda MM. Influence of the geometric isomers on the radical scavenging properties of 3,5-dicaffeoylquinic acid: A DFT study in vacuo and in solution. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1142/s0219633616500528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
3,5-Dicaffeoylquinic acid (diCQA) is a part of the chlorogenic acid group of compounds, largely isolated from food sources and possessing potent antioxidant activity. Only the trans–trans isomer exists in nature, however, abiotic stresses, such as UV-radiation, give rise to cis isomers. There have been no reports on the antioxidant activity of the cis isomers. The current study, performed using the B3LYP/6-311[Formula: see text]G(d,p) method, is aimed at investigating and comparing the antioxidant properties of the geometrical isomers of 3,5-diCQA. The study is conducted by checking the molecules’ ability for two main radical scavenging mechanisms, hydrogen atom transfer (HAT) and electron transfer (ET). A separate DPPH assay experimental study performed in this study shows that all the geometrical isomers are potent radical scavengers. The lowest O[Formula: see text]H bond dissociation enthalpy value (70.599 kcal/mol) corresponds to the trans–trans isomer and is comparable to that of gallic acid, a commercially available antioxidant. The lowest ionization potential value corresponds to the cis–cis isomer (149.54[Formula: see text]kcal/mol), indicating that it is best antioxidant, in terms of ET mechanism.
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Affiliation(s)
- Mpho M. Makola
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Ntakadzeni E. Madala
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Ian A. Dubery
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Paul A. Steenkamp
- Council for Scientific and Industrial Research (CSIR), Biosciences, Natural Products and Agroprocessing Group, Pretoria 0001, South Africa
| | - Mwadham. M. Kabanda
- Department of Chemistry, Faculty of Agriculture, Science and Technology, School of Mathematical and Physical Science, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Material Science Innovation and Modelling (MaSIM), Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
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22
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Hwang JT, Kim Y, Jang HJ, Oh HM, Lim CH, Lee SW, Rho MC. Study of the UV Light Conversion of Feruloyl Amides from Portulaca oleracea and Their Inhibitory Effect on IL-6-Induced STAT3 Activation. Molecules 2016; 21:molecules21070865. [PMID: 27376259 PMCID: PMC6273636 DOI: 10.3390/molecules21070865] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/24/2016] [Accepted: 06/28/2016] [Indexed: 11/16/2022] Open
Abstract
Two new feruloyl amides, N-cis-hibiscusamide (5) and (7'S)-N-cis-feruloylnormetanephrine (9), and eight known feruloyl amides were isolated from Portulaca oleracea L. and the geometric conversion of the ten isolated feruloyl amides by UV light was verified. The structures of the feruloyl amides were determined based on spectroscopic data and comparison with literature data. The NMR data revealed that the structures of the isolated compounds showed cis/trans-isomerization under normal laboratory light conditions. Therefore, cis and trans-isomers of feruloyl amides were evaluated for their convertibility and stability by UV light of a wavelength of 254 nm. After 96 h of UV light exposure, 23.2%-35.0% of the cis and trans-isomers were converted to trans-isomers. Long-term stability tests did not show any significant changes. Among all compounds and conversion mixtures collected, compound 6 exhibited the strongest inhibition of IL-6-induced STAT3 activation in Hep3B cells, with an IC50 value of 0.2 μM. This study is the first verification of the conversion rates and an equilibrium ratio of feruloyl amides. These results indicate that this natural material might provide useful information for the treatment of various diseases involving IL-6 and STAT3.
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Affiliation(s)
- Joo Tae Hwang
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
| | - Yesol Kim
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
| | - Hyun-Jae Jang
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
| | - Hyun-Mee Oh
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
| | - Chi-Hwan Lim
- College of Agriculture and Life Sciences, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 300-764, Korea.
| | - Seung Woong Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
| | - Mun-Chual Rho
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeonbuk 56212, Korea.
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23
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Makola MM, Steenkamp PA, Dubery IA, Kabanda MM, Madala NE. Preferential alkali metal adduct formation by cis geometrical isomers of dicaffeoylquinic acids allows for efficient discrimination from their trans isomers during ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:1011-8. [PMID: 27003038 DOI: 10.1002/rcm.7526] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 01/21/2016] [Accepted: 02/01/2016] [Indexed: 05/15/2023]
Abstract
RATIONALE Caffeoylquinic acid (CQA) derivatives are a group of structurally diverse phytochemicals that have attracted attention due to their many health benefits. The structural diversity of these molecules is due in part to the presence of regio- and geometrical isomerism. This structural diversity hampers the accurate annotation of these molecules in plant extracts. Mass spectrometry (MS) is successfully used to differentiate between the different regioisomers of the CQA derivatives; however, the accurate discrimination of the geometrical isomers of these molecules has proven to be an elusive task. METHODS UV-irradiated methanolic solutions of diCQA were analyzed using an ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UHPLC/QTOFMS) method in negative ionisation mode. An in-source collision-induced dissociation (ISCID) method was optimized by varying both the capillary and cone voltages to achieve differential fragmentation patterns between UV-generated geometrical isomers of the diCQAs during MS analyses. RESULTS Changes in the capillary voltage did not cause a significant difference to the fragmentation patterns of the four geometrical isomers, while changes in the cone voltage resulted in significant differences in the fragmentation patterns. The results also show, for the first time, the preferential formation of alkali metal (Li(+), Na(+) and K(+)) adducts by the cis geometrical isomers of diCQAs, compared to their trans counterparts. CONCLUSIONS Optimized QTOFMS-based methods may be used to differentiate the geometrical isomers of diCQAs. Finally, additives such as metal salts to induce adduct formation can be applied as an alternative method to differentiate closely related isomers which could have been difficult to differentiate under normal MS settings.
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Affiliation(s)
- Mpho M Makola
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Paul A Steenkamp
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
- CSIR Biosciences, Natural Products and Agroprocessing Group, Pretoria, 0001, South Africa
| | - Ian A Dubery
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - Mwadham M Kabanda
- Department of Chemistry, North-West University (Mafikeng Campus), Private Bag x2046, Mmabatho, 2735, South Africa
| | - Ntakadzeni E Madala
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
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Perturbation of pharmacologically relevant polyphenolic compounds in Moringa oleifera against photo-oxidative damages imposed by gamma radiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 156:79-86. [DOI: 10.1016/j.jphotobiol.2016.01.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/15/2016] [Accepted: 01/25/2016] [Indexed: 11/20/2022]
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Li ZJ, Cai L, Mei RF, Dong JW, Li SQ, Yang XQ, Zhou H, Yin TP, Ding ZT. A highly efficient transformation of cis - to trans -cinnamic acid derivatives by iodine. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.11.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Karaköse H, Müller A, Kuhnert N. Profiling and Quantification of Phenolics in Stevia rebaudiana Leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9188-98. [PMID: 26333998 DOI: 10.1021/acs.jafc.5b01944] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Stevia rebaudiana (Bertoni) is a plant from the Asteraceae family with significant economic value because of the steviol glycoside sweeteners in its leaves. Chlorogenic acids and flavonoid glycosides of S. rebaudiana from seven different botanical varieties cultivated over two years and harvested three times a year in eight European locations were profiled and quantified in a total of 166 samples. Compounds quantified include chlorogenic acids as well as flavonoid glycosides and aglycons. All phenolic concentration profiles show a perfect Gaussian distribution. Principal component analyses allow distinction between varieties of different geographical origin and distinction between different plant varieties. Although concentrations of all chlorogenic acids showed a positive correlation, no correlation was observed for flavonoid glycosides. Conclusions from these findings with respect to the biosynthesis and functional role of phenolics in S. rebaudiana are discussed.
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Affiliation(s)
- Hande Karaköse
- Department of Life Sciences and Chemistry, Jacobs University Bremen , 28759 Bremen, Germany
| | - Anja Müller
- Department of Life Sciences and Chemistry, Jacobs University Bremen , 28759 Bremen, Germany
| | - Nikolai Kuhnert
- Department of Life Sciences and Chemistry, Jacobs University Bremen , 28759 Bremen, Germany
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