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Pilzliche Verderbsflora von Möhren aus ökologischer und konventioneller Erzeugung

Steinhauer, Diana and Lücke, Friedrich-Karl (2007) Pilzliche Verderbsflora von Möhren aus ökologischer und konventioneller Erzeugung. [Fungal spoilage flora of carrots from organic and conventional horticulture.] Poster at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Summary

We investigated the fungal spoilage of carrots grown by different cultivation methods and stored at 5 °C at high humidity for up to 7 months. For this purpose, we used both microscopic analysis of pure cultures and DNA-based, culture-independent methods, namely, Single Strand Conformation Polymorphism (SSCP) and Terminal Restriction Length Polymorphism (T-RFLP). Moreover, fungi were identified on the basis of the sequences of 18S rDNA fragments from SSCP gels and from pure cultures. Additional analytical parameters included firmness and growth of two fungal strains on experi-mentally inoculated carrots. Both microscopic and DNA-based methods revealed that spoiled carrots cultivated at different sites carried different fungal species. The ob-served spectrum of species depended on the identification method. Using culture-independent methods, we detected fungi (e.g. species of basidiomycetes) not found on carrots up to now. No significant effect of the method of carrot cultivation (organic vs. conventional) on fungal spoilage patterns was observed. Likewise, no clear rela-tion between sites and methods of carrot cultivation and firmness or growth of experi-mentally inoculated fungi was found.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Lebensmittelqualität, Gemüsebau, Haltbarkeit, Pilze, BÖL, BOEL, FKZ 03OE191
Subjects: Crop husbandry > Post harvest management and techniques
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 4 Other subjects > 4.2 Food quality
Germany > Federal Organic Farming Scheme - BOELN > Food > Quality
Related Links:http://www.bundesprogramm-oekolandbau.de, http://www.bundesprogramm.de/fkz=03OE191, http://orgprints.org/perl/search/advanced?addtitle%2Ftitle=&keywords=03OE191&projects=BOEL&_order=bypublication&_action_search=Suchen
Deposited By: Steinhauer, Dipl. oec. troph. Diana
ID Code:9397
Deposited On:31 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

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