Water activity, pre-wetting and survival of Pseudomonas sp. ADP immobilized onto zeolite

S. A. Stelting, A. Sunna, C. R. Bunt

Research output: Contribution to conferenceAbstract

Abstract

Atrazine, a persistent and widely-used herbicide can be degraded by Pseudomonas sp. strain ADP. There is need for a room temperature stable formulation that might help to improve infield delivery and performance. Water activity throughout the study period remained constant (~1.0 aᴡ) for all test samples. Immobilization of Pseudomonas sp. strain ADP onto zeolite using a xanthan gel maintained survival for at least 10 weeks at 25 ℃. Approximately 1 log loss by week 7 was observed when xanthan gel was not used. Pre-wetting the zeolite increased the time to 1 log loss to 9 weeks. Formulation, and to some extent moisture does influence the stability of Pseudomonas sp. strain ADP immobilized onto zeolite.
Original languageEnglish
Pages1-2
Number of pages2
Publication statusPublished - 2013
EventAnnual Meeting and Exposition of the Controlled Release Society (40th : 2013) - Honolulu, Hawaii
Duration: 21 Jul 201324 Jul 2013

Conference

ConferenceAnnual Meeting and Exposition of the Controlled Release Society (40th : 2013)
CityHonolulu, Hawaii
Period21/07/1324/07/13

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Stelting, S. A., Sunna, A., & Bunt, C. R. (2013). Water activity, pre-wetting and survival of Pseudomonas sp. ADP immobilized onto zeolite. 1-2. Abstract from Annual Meeting and Exposition of the Controlled Release Society (40th : 2013), Honolulu, Hawaii, .