A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia

Przyklenk M, Vemmer M, Hanitzsch M, Patel A (2017)
Journal of Microencapsulation 34(5): 498-512.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Przyklenk, Michael; Vemmer, Marina; Hanitzsch, Miriam; Patel, AnantUniBi
Abstract / Bemerkung
This study reports the development of encapsulated and dried entomopathogenic fungus Metarhiuzm brunneum with reduced conidia content, increased conidiation, a high drying survival and enhanced shelf life. Dried beads prepared with the fillers corn starch, potato starch, carboxymethylcellulose or autoclaved baker’s yeast, showed enhanced survival with increasing filler content. The maximum survival of 82% was found for beads with 20% corn starch at <0.1 water activity. While increasing starch content inhibits the conidiation, autoclaved baker’s yeast and a combination with starch enhanced the conidiation to 1.0108 conidia/bead. Beads with conidia content reduced to 0.01% multiplied conidia in a “microfermentation” by the factor 1000. A bioassay confirmed that conidia formed from rehydrated beads were virulent against Tenebrior molitor larvae. After six months of storage, encapsulated conidia showed improved shelf life compared to non-formulated conidia. This “microfermenter” will pave the way for encapsulated fungi to be used as cost-effective biocontrol agents.
Stichworte
entomopathogenic fungi; alginate; drying; shelf life; microfermenter; starch
Erscheinungsjahr
2017
Zeitschriftentitel
Journal of Microencapsulation
Band
34
Ausgabe
5
Seite(n)
498-512
ISSN
0265-2048
eISSN
1464-5246
Page URI
https://pub.uni-bielefeld.de/record/2931910

Zitieren

Przyklenk M, Vemmer M, Hanitzsch M, Patel A. A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia. Journal of Microencapsulation. 2017;34(5):498-512.
Przyklenk, M., Vemmer, M., Hanitzsch, M., & Patel, A. (2017). A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia. Journal of Microencapsulation, 34(5), 498-512. doi:10.1080/02652048.2017.1354941
Przyklenk, M., Vemmer, M., Hanitzsch, M., and Patel, A. (2017). A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia. Journal of Microencapsulation 34, 498-512.
Przyklenk, M., et al., 2017. A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia. Journal of Microencapsulation, 34(5), p 498-512.
M. Przyklenk, et al., “A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia”, Journal of Microencapsulation, vol. 34, 2017, pp. 498-512.
Przyklenk, M., Vemmer, M., Hanitzsch, M., Patel, A.: A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia. Journal of Microencapsulation. 34, 498-512 (2017).
Przyklenk, Michael, Vemmer, Marina, Hanitzsch, Miriam, and Patel, Anant. “A bioencapsulation and drying method increases shelf life and efficacy of Metarhizium brunneum conidia”. Journal of Microencapsulation 34.5 (2017): 498-512.
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1 Zitation in Europe PMC

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