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Determination of Pesticide Residue in Made Tea of Different Tea Agro-types

Dr. Mainuddin Ahmed
Chief Scientific Officer
Department of Pest Management, BTRI, Srimangal, Moulvibazar

Mohammad Shameem Al Mamun
Senior Scientific Officer
Entomology Division, BTRI, Srimangal, Moulvibazar

Shovon Kumar paul
Scientific Officer
Entomology Division, BTRI, Srimangal, Moulvibazar

Abstract/ Executive Summary:

An experiment was conducted to determine the pesticide residue in made tea of different tea agro-types.Commonly used insecticides were applied on pluckable shoots at BTRI approved dose. Pluckable shoots were collected from selected plots of different tea agro-types of BTRI germplasm centre at 0th, 7th & 14th days interval after the application of pesticides and manufactured in the Mini Tea Factory. The residue analysis was done according to the methods developed by Ahmed & Sarker (2002) at Central Science Laboratory (CSL) in U.K. (Method reference PGD-95/01-07). The determination was done by Electron Captured Detector (ECD) and Flame Thermoionic Detector (FTD) using Shimadzu Gas Chromatograph 14-B with DB-5 Capillary Column. Nitrogen gas will be used as carrier gas. Hexane and Acetone were used as extracting reagents and Florisil as Clean-up reagent.

Keywords: Tea, Pesticide Residue, Agro-types, Clones

Location: BTRI Main Farm

Start Date: 01-01-2011

End Date: 31-12-2013

Program Area: Postharvest and Agro-processing

Commodity: Insecticide

Objectives:

To determine the pesticide residue in made tea of different tea agro-types

Methodology:

Commonly used insecticides were applied on pluckable shoots at BTRI approved dose. Pluckable shoots were collected from selected plots of different tea agro-types of BTRI germplasm centre at 0th, 7th & 14th days interval after the application of pesticides and manufactured in the Mini Tea Factory. The residue analysis was done according to the methods developed by Ahmed & Sarker (2002) at Central Science Laboratory (CSL) in U.K. (Method reference PGD-95/01-07). The determination was done by Electron Captured Detector (ECD) and Flame Thermoionic Detector (FTD) using Shimadzu Gas Chromatograph 14-B with DB-5 Capillary Column. Nitrogen gas will be used as carrier gas. Hexane and Acetone were used as extracting reagents and Florisil as Clean-up reagent.

Source of Information: Annual Report 2012

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The experiment is in progress

Knowledge Management: Report/Proceedings