Method for reducing crotonaldehyde in mainstream smoke of cigarettes
A cigarette mainstream smoke and crotonaldehyde technology, applied in tobacco, tobacco processing, application, etc., can solve the problems of difficult popularization and application, expensive microwave equipment, high processing cost, etc., achieve great economic significance, improve smoking safety, and adapt to strong effect
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Embodiment 1
[0026] Randomly take 150kg of first-cured tobacco leaves, pack each 50kg into a box, a total of 3 boxes, and pack them in a corrugated box with a length x width x height of 70cm x 60cm x 50cm. The stacking thickness of the tobacco leaves in the carton is 26-72cm. 0.20~0.34g / cm 3 ;Place the packaged tobacco leaves on the conveying device with a conveying speed of 0.02-0.3m / s; the tobacco leaves placed on the conveying device are irradiated with electron beam / X-rays generated by an electron accelerator, and the energy of the electron accelerator is 5-10MeV , the beam current is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, the irradiation dose is 1kGy, the way of secondary irradiation is adopted, and the tobacco leaves are transported through the conveying device twice. The scanning window of the electron accelerator is irradiated, and half of the radiation dose is received at a time. After the first irradiation, the ...
Embodiment 2
[0030] According to the steps similar to the above-mentioned Example 1, 3 boxes of re-cured tobacco leaves packed in standard boxes were randomly selected. The length, width, and height of the cartons were 113.6 cm x 72 cm x 72.5 cm, and each box weighed 200 kg. Use 5kGy dose of X-rays for irradiation treatment. After irradiation, the tobacco leaves are rolled by a cigarette rolling machine, and 40 cigarettes that meet the measurement requirements are randomly selected. According to the standard conditions stipulated in GB / T 19609-2004, a smoking machine is used to simulate the state of human smoking. , using DNPH-treated Cambridge filter to collect crotonaldehyde in smoke, using high-performance liquid chromatography-diode array detection to determine the content of crotonaldehyde, using the corresponding unirradiated cigarette samples as a control, and evaluating smoking. The results are shown in Table 2.
[0031] Table 2 Crotonaldehyde content and its change in re-cured tob...
Embodiment 3
[0034]According to the steps similar to the above-mentioned Example 1, 3 cartons of finished cigarettes were randomly selected, the cartons were 47.5cm×26cm×59.5cm in length×width×height, each carton weighed 15kg, and the quantity was 50. 10kGy dose of electron beam is used for irradiation treatment. After irradiation, 40 cigarettes that meet the measurement requirements are randomly selected. According to the standard conditions stipulated in GB / T19609-2004, a smoking machine is used to simulate the state of human smoking, and Cambridge filters treated with DNPH are used. The crotonaldehyde in the smoke was collected, the content of crotonaldehyde was determined by high performance liquid chromatography-diode array detection method, and the corresponding unirradiated cigarette samples were used as the control, and the smoking evaluation was carried out. The results are shown in Table 3.
[0035] Table 3 Crotonaldehyde content and its changes in finished cigarettes before and ...
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