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

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

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 language	English
Pages	1-2
Number of pages	2
Publication status	Published - 2013
Event	Annual Meeting and Exposition of the Controlled Release Society (40th : 2013) - Honolulu, Hawaii Duration: 21 Jul 2013 → 24 Jul 2013

Conference

Conference	Annual Meeting and Exposition of the Controlled Release Society (40th : 2013)
City	Honolulu, Hawaii
Period	21/07/13 → 24/07/13

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

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.",

author = "Stelting, {S. A.} and A. Sunna and Bunt, {C. R.}",

year = "2013",

language = "English",

pages = "1--2",

note = "Annual Meeting and Exposition of the Controlled Release Society (40th : 2013) ; Conference date: 21-07-2013 Through 24-07-2013",

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TY - CONF

T1 - Water activity, pre-wetting and survival of Pseudomonas sp. ADP immobilized onto zeolite

AU - Stelting, S. A.

AU - Sunna, A.

AU - Bunt, C. R.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

M3 - Abstract

SP - 1

EP - 2

T2 - Annual Meeting and Exposition of the Controlled Release Society (40th : 2013)

Y2 - 21 July 2013 through 24 July 2013

ER -