Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity
As a result of the wide distribution of herbal teas the data on nutritional characterisation, chemical profile and biological activity of these products are required. The decoctions of Gentiana algida, G. decumbens, G. macrophylla and G. triflora herb teas were nutritionally characterized with respe...
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| Format: | Article |
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MDPI AG
2015-11-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/20/11/19674 |
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| author | Daniil N. Olennikov Nina I. Kashchenko Nadezhda K. Chirikova Lena P. Koryakina Leonid N. Vladimirov |
| author_facet | Daniil N. Olennikov Nina I. Kashchenko Nadezhda K. Chirikova Lena P. Koryakina Leonid N. Vladimirov |
| author_sort | Daniil N. Olennikov |
| collection | DOAJ |
| description | As a result of the wide distribution of herbal teas the data on nutritional characterisation, chemical profile and biological activity of these products are required. The decoctions of Gentiana algida, G. decumbens, G. macrophylla and G. triflora herb teas were nutritionally characterized with respect to their macronutrients, demonstrating the predominance of polysaccharides and low lipid content. Gentian decoctions were also submitted to a microcolumn RP-HPLC-UV analysis of phytochemicals demonstrating a high content of iridoids (177.18–641.04 μg/mL) and flavonoids (89.15–405.71 μg/mL). Additionally, mangiferin was detected in samples of G. triflora tea (19.89 μg/mL). Five free sugars (fructose, glucose, sucrose, gentiobiose, gentianose) were identified in all gentian teas studied, as well as six organic acids (malic, citric, tartaric, oxalic, succinic, quinic). Pectic polysaccharides with a high content of rhamnogalacturonans and arabinogalactans were also identified and characterized in gentian decoctions for the first time. Gentian tea decoctions and their specific compounds (gentiopicroside, loganic acid-6′-O-β-d-glucoside, isoorientin, isoorientin-4′-O-β-d-glucoside, mangiferin, water-soluble polysaccharides) showed a promising antimicrobial, anti-inflammatory and antioxidant potentials. Evidences obtained indicate the prospective use of gentian herb teas as food products and medicines. |
| first_indexed | 2024-12-16T10:00:17Z |
| format | Article |
| id | doaj.art-97a9eebb5695481796113d4ab3c7f84a |
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| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-16T10:00:17Z |
| publishDate | 2015-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-97a9eebb5695481796113d4ab3c7f84a2022-12-21T22:35:49ZengMDPI AGMolecules1420-30492015-11-012011200142003010.3390/molecules201119674molecules201119674Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and BioactivityDaniil N. Olennikov0Nina I. Kashchenko1Nadezhda K. Chirikova2Lena P. Koryakina3Leonid N. Vladimirov4Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh’yanovoy Str., 6, Ulan-Ude 670047, RussiaInstitute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh’yanovoy Str., 6, Ulan-Ude 670047, RussiaDepartment of Biochemistry and Biotechnology, North-Eastern Federal University, 58 Belinsky Str., Yakutsk 677027, RussiaFaculty of the Veterinarian Medicine, Yakut State Agricultural Academy, 15 Krasil’nikova Str., Yakutsk 677007, RussiaFaculty of the Veterinarian Medicine, Yakut State Agricultural Academy, 15 Krasil’nikova Str., Yakutsk 677007, RussiaAs a result of the wide distribution of herbal teas the data on nutritional characterisation, chemical profile and biological activity of these products are required. The decoctions of Gentiana algida, G. decumbens, G. macrophylla and G. triflora herb teas were nutritionally characterized with respect to their macronutrients, demonstrating the predominance of polysaccharides and low lipid content. Gentian decoctions were also submitted to a microcolumn RP-HPLC-UV analysis of phytochemicals demonstrating a high content of iridoids (177.18–641.04 μg/mL) and flavonoids (89.15–405.71 μg/mL). Additionally, mangiferin was detected in samples of G. triflora tea (19.89 μg/mL). Five free sugars (fructose, glucose, sucrose, gentiobiose, gentianose) were identified in all gentian teas studied, as well as six organic acids (malic, citric, tartaric, oxalic, succinic, quinic). Pectic polysaccharides with a high content of rhamnogalacturonans and arabinogalactans were also identified and characterized in gentian decoctions for the first time. Gentian tea decoctions and their specific compounds (gentiopicroside, loganic acid-6′-O-β-d-glucoside, isoorientin, isoorientin-4′-O-β-d-glucoside, mangiferin, water-soluble polysaccharides) showed a promising antimicrobial, anti-inflammatory and antioxidant potentials. Evidences obtained indicate the prospective use of gentian herb teas as food products and medicines.http://www.mdpi.com/1420-3049/20/11/19674Gentiana algidaGentiana decumbensGentiana macrophyllaGentiana triflorairidoidsflavonoidspolysaccharidesanti-inflammatoryantioxidantantimicrobial activity |
| spellingShingle | Daniil N. Olennikov Nina I. Kashchenko Nadezhda K. Chirikova Lena P. Koryakina Leonid N. Vladimirov Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity Molecules Gentiana algida Gentiana decumbens Gentiana macrophylla Gentiana triflora iridoids flavonoids polysaccharides anti-inflammatory antioxidant antimicrobial activity |
| title | Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity |
| title_full | Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity |
| title_fullStr | Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity |
| title_full_unstemmed | Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity |
| title_short | Bitter Gentian Teas: Nutritional and Phytochemical Profiles, Polysaccharide Characterisation and Bioactivity |
| title_sort | bitter gentian teas nutritional and phytochemical profiles polysaccharide characterisation and bioactivity |
| topic | Gentiana algida Gentiana decumbens Gentiana macrophylla Gentiana triflora iridoids flavonoids polysaccharides anti-inflammatory antioxidant antimicrobial activity |
| url | http://www.mdpi.com/1420-3049/20/11/19674 |
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