TSNAs IN AIR CURED TOBACCO TASK FORCE

CURING COLLABORATIVE STUDY 2003

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY 2003

• Monitor the environmental parameters (RH%, T°C) in the course of Air Curing in tobacco (hobo loggers).

• To establish the relationships between curing conditions and TSNAs conc. In Air Cured Tobacco.

OBJECTIVES

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY 2003

• Use preferably a high NN line of Burley or DAC Tobacco

• Carry out study in 5-10 different curing barns.

• Place hobo-loggers at a representative point in the barn and outside the barn.

• Record dates, observations at curing phases.

• Take a representative sample of upper-middle leaves around the hobo-logger for TSNA, NO2

-, NN and grade

PROTOCOL

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY: preleminary data

Code Grower Tobacco Transplant Topping

JTI-1Leaf Tobacco Research Center Japan

Burley Kitakami 1

April, 16June, 30 1 Leaf removed

August, 7 primed

JTI-2

Leaf Tobacco Research Center Morioka-Japan

Burley Burley 21

April, 22July, 3 1 leaf removed

August, 19 primed

US-1

U.S. Smokeless Tobacco Tennessee

D.A.C. TR Madole

May, 20August, 11 15 leaves

Sept, 11 stalk cut

ANITTA-1 Dutreuil 1Burley BB16A

May, 22 July,26 August, 29 stalk cut

ANITTA-2 Dutreuil 2Burley BB16A

May, 22 July,26 August, 22 stalk cut

Harvest

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY: preleminary data

Code Grower Tobacco Transplant Topping

ANITTA-3 Escup 1Burley BB16A

May, 29 End of July August, 13 stalk cut

ANITTA-4 Escup 2Burley BB16A

May, 29 End of July August, 20 stalk cut

ANITTA-5 Escup 3Burley BB16A

April, 22 End of July August, 22 stalk cut

ANITTA-6 Beaudoin 1Burley BB16A

April, 16 July,18 August,13 stalk cut

ANITTA-7 Beaudoin 2Burley BB16A

April, 16 July,18 August, 22 stalk cut

Harvest

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY: preleminary data

CodeType and Dimensions

(m)Roof Wall

%Side openings

Spacing equipments H EOY EOB EOC

JTI-1

Plastic shed L:9 W:4,5 H:3,3then conventional L:7,2 W:4,5 H:6,3

VinylSteel

VinylSteel

30%12%

145l / m3

204l / m3

--

Aug 7 primed

Aug 13 Aug 18 sept-05

JTI-2

Plastic shed L:18 W:4,5 H:3,3then conventional L:27 W:10 H:5,6

VinylSteel

VinylSteel

30%10%

145l / m3

204l / m3

Heater(oil)heater(oil)

Aug 19 primed

Aug 25 sept 5 sept 24

US-1Conventional L:40 W:13 h:10

metal wood 0,15

6,7 pl/m3

or 100,5 l>/m3

-

FR-1 Plastic shed Plastic Plactic 60% 30 pl/m² Heater (gaz) Aug 29 Sep 4 Sep 22

Curing PhasesThe Barn

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TSNAs IN AIR CURED TOBACCO TASK FORCECURING COLLABORATIVE STUDY 2003: preleminary data

CodeType and

Dimensions (m)Roof Wall

%Side openings

Spacing equipments H EOY EOB EOC

FR-2 Plastic shed Plastic Plastic 60% 30 pl/m² Heater (gaz) Aug 20 Sep 4 Sep 22

FR-3 Conv. 1 tier Fibrocement Plastic 50% 27 pl/m² Aug 20 Aug 30 Sep 15

FR-4 Conv. 2 tier tile Plastic 20% 27 pl/m² Aug 13 Aug 30 Sep 15

FR-5 Conv. 1 tier Metal sheet Plastic 50% 27 pl/m² Aug 20 Aug 30 Sep 15

FR-6 Plastic shed Plastic Plastic 60% 33 pl/m² Heater (gaz) Aug 13 Aug 20 Sep 10

FR-7 Plastic shed Plastic Plastic 60% 33 pl/m² Heater (gaz) Aug 22 Aug 30 Sep 20

Curing PhasesThe Barn