Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Hansgeorg Ernst"'
2
Energy and electron transfer reactions of polyenic acids with variable chain lengths
Autor: Hans-Richard Sliwka, Hansgeorg Ernst, Vassilia Partali, Thor Bernt Melø, Asma Zaidi, He Li
Publikováno v: Tetrahedron. 69:219-227
Highly unsaturated conjugated fatty acids (carotenoic acids) with 5–15 conjugated double bonds were irradiated by flash pulses in the presence of the sensitizer riboflavin. The resulting triplet and radical cation transients were analyzed and the u
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9dfe44c036373b8f646fdd4e11e2900
https://doi.org/10.1016/j.tet.2012.10.041
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3
Apo-10′-Lycopenoic Acid, a Lycopene Metabolite, Increases Sirtuin 1 mRNA and Protein Levels and Decreases Hepatic Fat Accumulation in ob/ob Mice3
Autor: Jayong Chung, Hansgeorg Ernst, Xiang-Dong Wang, Kang Quan Hu, Kyeongok Koo, Fuzhi Lian
Publikováno v: The Journal of Nutrition. 142:405-410
Lycopene has been shown to be beneficial in protecting against high-fat diet-induced fatty liver. The recent demonstration that lycopene can be converted by carotene 9',10'-oxygenase into a biologically active metabolite, ALA, led us to propose that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54781381899c7e3ffe18e2c4f546f950
https://doi.org/10.3945/jn.111.150052
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4
The Mycobacterium tuberculosis ORF Rv0654 encodes a carotenoid oxygenase mediating central and excentric cleavage of conventional and aromatic carotenoids
Autor: Hansgeorg Ernst, Daniel Scherzinger, Cornelia Bär, Salim Al-Babili, Erdmann Scheffer
Publikováno v: FEBS Journal. 277:4662-4673
Mycobacterium tuberculosis, the causative agent of tuberculosis, is assumed to lack carotenoids, which are widespread pigments fulfilling important functions as radical scavengers and as a source of apocarotenoids. In mammals, the synthesis of apocar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::782d33f0f109a487921a428713d66ad6
https://doi.org/10.1111/j.1742-4658.2010.07873.x
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7
Recent advances in industrial carotenoid synthesis
Autor: Hansgeorg Ernst
Publikováno v: Pure and Applied Chemistry. 74:1369-1382
Symmetrical C40-carotenoids are efficiently produced by double Wittig olefination of the corrresponding C15-phosphonium salts with C10-dialdehyde. Industrial syntheses of lycopene-, astaxanthin-, and (3R,3'R)-zeaxanthin-C15-phosphonium salts are disc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aae95423792dc08a5239e7d9ea471d13
https://doi.org/10.1351/pac200274081369
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8
Quantitative assessment of antioxidant properties of natural colorants and phytochemicals: carotenoids, flavonoids, phenols and indigoids. The role of β-carotene in antioxidant functions
Autor: Sylke Haremza, Ines Schülke, Thomas K. Hoffmann, Hans-Dieter Martin, Günther Seybold, Wilhelm Stahl, Marcus Schmidt, Stefan Beutner, Christoph Ruck, Robin Walsh, Hansgeorg Ernst, Susanne Frixel, Inés Hernández Blanco, Bernhard Mayer, Britta Bloedorn, Peter Noack, Helmut Sies, Stefan Sell
Publikováno v: Journal of the Science of Food and Agriculture. 81:559-568
Reactive oxygen species are potentially damaging molecules. An important function of antioxidants is to intercept harmful triplet states, in order to prevent the formation of singlet oxygen, or to quench singlet oxygen directly. However, antioxidants
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::379f76bdc5036f9d77fffc757816c19c
https://doi.org/10.1002/jsfa.849
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10
3,3'-Dihydroxyisorenieratene and isorenieratene prevent UV-induced DNA damage in human skin fibroblasts
Autor: Tanja Völker, Wilhelm Stahl, Silke De Spirt, Hansgeorg Ernst, Sarah Wagener
Publikováno v: Free radical biologymedicine. 53(3)
Skin cancer is among the most frequent neoplastic malignancies and exposure to UV irradiation is a major risk factor. In addition to topical sunscreens, photoprotection by dietary antioxidants such as carotenoids or polyphenols has been suggested as
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::755b50804ee7df39d9e8cec9c99be0ea
https://pubmed.ncbi.nlm.nih.gov/22634149
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