Dissipation behavior of bifenthrin residues in tea and its brew.
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
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| Title |
Dissipation behavior of bifenthrin residues in tea and its brew.
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| Creator |
Tewary, D K
Kumar, Vipin S D, Ravindranath Shanker, Adarsh |
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| Subject |
Pest and Pesticides
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| Description |
Dissipation behavior of bifenthrin, a widely used non-systemic acaricide/insecticide, applied under field condition on tea crop in
wet (mid-June–October) and dry season (November–mid-June) was studied in green shoots, made tea and its brew. A simple, rapid
analytical procedure for the quantification of bifenthrin in these matrices was developed using gas chromatography with electron
capture detector. Degradation rate in both wet and dry seasons followed first order kinetics with half lives in green leave in the range
0.52–0.77 and 1.20–1.32 days and in made tea were 0.55–0.60 and 1.03–1.06 days for wet and dry seasons respectively. Processing of
green shoots caused considerable loss (P42%) of residue and its only partial transfer (1.5–14%) in brew was observed. Based on the
observation reported, a waiting period of at least three days before plucking the tea shoots after pesticide application at recommended
dose (40 g a.i./ha) may be suggested and considered quite safe from point of health hazards due to toxic effect of residues in brew.
2004 Elsevier Ltd. All rights reserved.
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| Date |
2005
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ihbt.csircentral.net/413/1/160_2005_Disspation.pdf
Tewary, D K and Kumar, Vipin and S D, Ravindranath and Shanker, Adarsh (2005) Dissipation behavior of bifenthrin residues in tea and its brew. Food Control, 16 (3). pp. 231-237. |
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| Relation |
http://ihbt.csircentral.net/413/
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