Home > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Genetics (non-medical) > Golden Rice. Ein gentechnisch verändertes Lebensmittel zur Eindämmung eines weit verbreiteten Vitamin A-Mangels?
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Golden Rice. Ein gentechnisch verändertes Lebensmittel zur Eindämmung eines weit verbreiteten Vitamin A-Mangels?

Golden Rice. Ein gentechnisch verändertes Lebensmittel zur Eindämmung eines weit verbreiteten Vitamin A-Mangels?

          
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About the Book

Studienarbeit aus dem Jahr 2014 im Fachbereich Biologie - Genetik / Gentechnologie, Note: 1,0, Universität Hamburg, Sprache: Deutsch, Abstract: Die vorliegende Arbeit thematisiert die Möglichkeit, einen weit verbreiteten Vitamin A-Mangel mithilfe einer gentechnisch veränderten Reissorte einzudämmen und diskutiert unter Einbezug verschiedener Ansichten die Chancen und eventuellen Problematiken dieses Vorhabens. Um mit einem Zitat von Transgen 3 (o.J.) zu beginnen: "Nach Schätzungen der WHO leiden weltweit rund 127 Millionen Kinder im Vorschulalter an Vitamin A-Mangel. Bis zu 500.000 erblinden jedes Jahr, etwa die Hälfte von ihnen stirbt innerhalb eines Jahres nach der Erblindung". Tatsächlich leiden viele Heranwachsende vor allem in afrikanischen und asiatischen Ländern, in denen Reis Hauptnahrungsmittel ist, unter einem Vitaminmangel. Reis selber enthält kaum Provitamin A und kann den Tagesbedarf eines Menschen somit nicht decken (vgl. ebd.). Beim Lesen dieser Zeilen entsteht die Frage, weshalb man den Mangelerscheinungen der betroffenen Bevölkerung in Zeiten gentechnischer Verfahren nicht entgegen wirken kann. In der Tat findet die grüne Gentechnik in der Landwirtschaft und in der Lebensmittelherstellung Anwendung, wird jedoch kontrovers diskutiert (vgl. Krause et. al. 2011). Hier gibt es den Ansatz, in Pflanzen Gene einer anderen Spezies einzubringen, um beispielsweise agronomische Eigenschaften wie Krankheits- und Stressresistenz zu erzielen, oder andere Charakteristika wie Inhaltsstoffe oder Nährstoffzusammensetzungen zu modifizieren (vgl. BioSicherheit 2011). Letzteres wurde im Hinblick auf eine Verbesserung der eingangs beschriebenen Situation versucht: Reis wurde mit Beta-Carotin, einer Vorstufe von Vitamin A, angereichert und der sogenannte Golden Rice entstand (vgl. Frey 2001: 4-7). Diesen möchte ich in der vorliegenden Arbeit genauer betrachten und folgenden Fragestellungen nachgehen: Sollte der Golden Rice einen Beitrag zur Deckung des weit verbreiteten V
About the Author: Nora Schrader erwarb den Studienabschluss Master of Education an der Universität Hamburg. Schon während des Studiums erhielt sie für ihre hervorragenden Forschungsarbeiten Publikationsangebote von Lehrenden der Universität. Seit einigen Jahren ist sie nicht nur im Kontext des Lehrens, sondern ebenfalls in der Bildungsforschung tätig, hat ihren zweiten Masterabschluss in Bildungswissenschaften absolviert und bereitet sich aktuell auf ihre Promotion vor.


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Product Details
  • ISBN-13: 9783656932031
  • Publisher: Grin Publishing
  • Binding: Paperback
  • Language: German
  • Returnable: N
  • Spine Width: 2 mm
  • Width: 148 mm
  • ISBN-10: 3656932034
  • Publisher Date: 31 Mar 2015
  • Height: 210 mm
  • No of Pages: 28
  • Series Title: German
  • Weight: 50 gr


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