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Turanose
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Turanose ist ein reduzierender Zucker aus der Gruppe der Disaccharide,cite-ref-0-3-0[3] der natΓΌrlich vorkommt.

Contents

β€’ Herstellung
β€’ Verwendung

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Vorkommen und Bedeutung

Turanose kommt natΓΌrlich in Honig vor.cite-ref-4[4]

In Pflanzen wird sie nicht metabolisiert, spielt aber eine Rolle als SignalmolekΓΌl. Erforscht wurde dies beispielsweise in der Tomate und in Arabidopsis.cite-ref-5[5]cite-ref-6[6] Pflanzen verfΓΌgen ΓΌber Membran-Transporterproteine, die mehr oder weniger spezifisch bestimmte Zucker transportieren kΓΆnnen. Arabidopsis thaliana verfΓΌgt beispielsweise ΓΌber ein Protein, das eine besonders hohe AffinitΓ€t fΓΌr Saccharose hat, aber auch eine Reihe anderer Zucker (darunter Turanose) transportiert.cite-ref-7[7] In der Gerste kann Turanose die AktivitΓ€t der Amylase unterdrΓΌcken.cite-ref-8[8]

Eigenschaften

In Untersuchungen an Zellkulturen zeigte Turanose entzündungshemmende Eigenschaften.cite-ref-1-9-0[9] Ihre Süßkraft ist halb so groß wie die der Saccharose.cite-ref-0-3-1[3]

Herstellung

Eine biotechnologische Herstellung ist durch Bifidobacterium thermophilumcite-ref-10[10] oder mittels der Amylosucrase von Neissera polysacchareacite-ref-0-3-2[3] mΓΆglich.

Verwendung

Wegen verschiedener nützlicher Eigenschaften eignet es sich mâglicherweise als Süßstoff in der Lebensmitteltechnik und Medizin.cite-ref-1-9-1[9]cite-ref-11[11]

Einzelnachweise

cite-note-11. D-Turanose at Sigma-Aldrich
cite-note-sigma-22. Datenblatt D-(+)-Turanose, β‰₯98% bei Sigma-Aldrich, abgerufen am 22. Juni 2023 (PDF).
cite-note-0-33. ↑ Ren Wang, Jun-Soo Bae, Jung-Hwan Kim, Bum-Soo Kim, So-Hee Yoon, Cheon-Seok Park, Sang-Ho Yoo: Development of an efficient bioprocess for turanose production by sucrose isomerisation reaction of amylosucrase. In: Food Chemistry. Band 132, Nr. 2, Mai 2012, S. 773–779, doi:10.1016/j.foodchem.2011.11.035.
cite-note-44. ↑ Landis W. Doner: The sugars of honeyβ€”A review. In: Journal of the Science of Food and Agriculture. Band 28, Nr. 5, Mai 1977, S. 443–456, doi:10.1002/jsfa.2740280508.
cite-note-55. ↑ Alok K. Sinha, Markus G. Hofmann, Ulrike RΓΆmer, Walter KΓΆckenberger, Lothar Elling, Thomas Roitsch: Metabolizable and Non-Metabolizable Sugars Activate Different Signal Transduction Pathways in Tomato. In: Plant Physiology. Band 128, Nr. 4, 1. April 2002, S. 1480–1489, doi:10.1104/pp.010771, PMID 11950996, PMC 154275 (freier Volltext).
cite-note-66. ↑ Silvia Gonzali, Giacomo Novi, Elena Loreti, Fabio Paolicchi, Alessandra Poggi, Amedeo Alpi, Pierdomenico Perata: A turanose-insensitive mutant suggests a role for WOX5 in auxin homeostasis in Arabidopsis thaliana: WOX5 modulates auxin homeostasis in Arabidopsis. In: The Plant Journal. Band 44, Nr. 4, 18. Oktober 2005, S. 633–645, doi:10.1111/j.1365-313X.2005.02555.x.
cite-note-77. ↑ Alicia B. Sivitz, Anke Reinders, Meghan E. Johnson, Anthony D. Krentz, Christopher P.L. Grof, Jai M. Perroux, John M. Ward: Arabidopsis Sucrose Transporter AtSUC9. High-Affinity Transport Activity, Intragenic Control of Expression, and Early Flowering Mutant Phenotype. In: Plant Physiology. Band 143, Nr. 1, Januar 2007, S. 188–198, doi:10.1104/pp.106.089003, PMID 17098854, PMC 1761979 (freier Volltext).
cite-note-88. ↑ Elena Loreti, Amedeo Alpi, Pierdomenico Perata: Glucose and Disaccharide-Sensing Mechanisms Modulate the Expression of Ξ±-amylase in Barley Embryos. In: Plant Physiology. Band 123, Nr. 3, 1. Juli 2000, S. 939–948, doi:10.1104/pp.123.3.939, PMID 10889242, PMC 59056 (freier Volltext).
cite-note-1-99. ↑ Joo-Yeon Chung, Yoo-Sun Kim, Yuri Kim, Sang-Ho Yoo: Regulation of Inflammation by Sucrose Isomer, Turanose, in Raw 264.7 Cells. In: Journal of Cancer Prevention. Band 22, Nr. 3, 30. September 2017, S. 195–201, doi:10.15430/JCP.2017.22.3.195, PMID 29018785, PMC 5624461 (freier Volltext).
cite-note-1010. ↑ Su-Jin Jun, Jung-A. Lee, Young-Wan Kim, Sang-Ho Yoo: Site-Directed Mutagenic Engineering of a Bifidobacterium Amylosucrase toward Greater Efficiency of Turanose Synthesis. In: Journal of Agricultural and Food Chemistry. Band 70, Nr. 5, 9. Februar 2022, S. 1579–1588, doi:10.1021/acs.jafc.1c06126.
cite-note-1111. ↑ Dong-Joo Han, Byung-Hoo Lee, Sang-Ho Yoo: Physicochemical properties of turanose and its potential applications as a sucrose substitute. In: Food Science and Biotechnology. Band 30, Nr. 3, MΓ€rz 2021, S. 433–441, doi:10.1007/s10068-021-00876-1, PMID 33868754, PMC 8017078 (freier Volltext).