Removal of Phenolic Compounds from Mainstream Cigarette Smoke by Plasticizer

2013 ◽  
Vol 803 ◽  
pp. 142-144
Author(s):  
Sai Bo Yu ◽  
Yong Jin ◽  
Hai Feng Tan ◽  
Qi Liu ◽  
Shi Tai Wang

A series of compounds were applied as plasticizer in the cellulose acetate filter of cigarette. The data showed that the tested filters with proper plasticizers could effectively remove phenolic compounds from mainstream cigarette smoke. In the test models, Triethyl citrate (TEC) exhibited significant absorption capacity to phenolic compounds in cigarette smoke, and the removal efficiency exceeded 49% in contrast to triacetin. Similar result was obtained in different type of cigarette with TEC tips. The removal efficiency of phenolic compounds was significantly affected by the loading of TEC when the loading of TEC was less than 9 wt%. However, when the loading of TEC was between 9-15 wt%, the removal efficiency showed only slight difference.

Author(s):  
J.G. Curran ◽  
J.E. Kiefer

AbstractA method was developed to measure the amount of an SV smoke component captured by a filter for at least the duration of a puff and eluted from the filter by subsequent puffs of cigarette smoke. It was concluded that the size of the filament affects the elution of nicotine by a cellulose acetate filter and that the elution phenomenon is an important factor in the filtration mechanism of nicotine and a minor factor in the filtration mechanism of TPM. Due to condensation, there is a buildup of nicotine and TPM within 5 mm of the burning zone. This accounts for some of the increased delivery of nicotine and TPM observed when the last portion of the cigarette is smoked


Author(s):  
Yong Jin ◽  
Saibo Yu ◽  
Qi Liu ◽  
Shitai Wang ◽  
Haifeng Tan ◽  
...  

AbstractTriethyl citrate (TEC) was applied in the preparation of cigarette filter rods by two approaches. One was to utilize TEC as a plasticizer sprayed onto the surface of cellulose acetate (CA) fibers. The other was to apply TEC as an additive coated onto the cellulosic paper of acetate-paper dual filters. Three types of cigarette filter rods, namely, triethyl citrate-cellulose acetate (TEC-CA) filter rods, triethyl citrate-cellulose acetate-paper (TEC-CA-paper) dual filter rods and cellulose acetate-paper-triethyl citrate (CA-paper-TEC) dual filter rods, were manufactured. In order to promote the curing of CA rods, high-frequency radiation was introduced into the procedure of filter manufacture. Then Virginia type cigarettes, combined with the three kinds of prepared filter rods were manufactured and the removal efficiency of phenols from the cigarette mainstream smoke was investigated. The results revealed that no matter where the triethyl citrate was applied as plasticizer or coating additive, the content of phenol,


Pneumologie ◽  
2013 ◽  
Vol 67 (12) ◽  
Author(s):  
S Dehmel ◽  
P Nathan ◽  
K Milger ◽  
R Prungnaud ◽  
R Imker ◽  
...  

Author(s):  
R. A. Crellin ◽  
G. O. Brooks ◽  
H. G. Horsewell

AbstractA ventilating filter for cigarettes has been developed which reduces the delivery of smoke constituents from the final two to three puffs. Since the normaI delivery for these three puffs can account for up to half the total particulate matter and nicotine delivered by the whole cigarette, usefuI reductions per cigarette can be produced. The ventilating filter consists of cellulose acetate tow wrapped in heat-shrinkable film and attached to a tobacco rod using perforated tipping paper. When the cigarette is smoked, the perforations remain closed by contact with the impermeable film until transfer of heat to the filter is sufficient to soften the filter tow and shrink the film. Ventilating air now enters the cigarette and reduces the smoke deliveries. The effectiveness of the ventilating filter is increased by using films which have a low shrink temperature, high shrink tension and a high degree of biaxiaI shrinkage. Increases in filter plasticiser level, tipping perforation area and puff volume improve the effectiveness of the ventilating filter but increases in cigarette paper porosity and tobacco butt length reduce the effectiveness


2014 ◽  
Vol 39 (1) ◽  
pp. 23-25
Author(s):  
Cheng-long XU ◽  
Zhao-peng SONG ◽  
Ya DAI ◽  
Kuo-yan MA ◽  
Wen-chao WANG ◽  
...  

2007 ◽  
Vol 55 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Leonardo Tavares Salgado ◽  
Rodrigo Tomazetto ◽  
Leonardo Paes Cinelli ◽  
Marcos Farina ◽  
Gilberto Menezes Amado Filho

Brown algae phenolic compounds (PC) are secondary metabolites that participate in many biological processes, such as ultraviolet radiation (UV) protection, polyspermy blocking and trace metals bounding. Recently, PC has also been studied due to possible interactions with cell wall polysaccharides. However, there are few evidences of these interactions and their influence in physiological processes. The interactions between PC from the brown alga Padina gymnospora and alginates and the influence of these interactions on the UV absorption properties of PC were investigated in this work. Chromatography and spectrophotometry techniques were used to isolate, characterize and determine UV absorption capacity of studied compounds. Even after the P. gymnospora polysaccharide extraction and isolating methods, the PC was maintained linked to the alginate. The interaction of alginates with PC did not cause modifications on absorbance pattern of electromagnetic spectrum (UV-VIS-IR). The UV absorbance capability of PC linked to alginate was maintained for a longer period of time if compared with the purified PC. The obtained results reveal the strong linkage between PC and alginates and that these linkages preserve the UV absorption capability of PC along time.


2019 ◽  
Vol 169 ◽  
pp. 206-219 ◽  
Author(s):  
Eun Chul Pack ◽  
Hyung Soo Kim ◽  
Dae Yong Jang ◽  
Ye Ji Koo ◽  
Hong Hyeon Yu ◽  
...  

Clay Minerals ◽  
2021 ◽  
pp. 1-25
Author(s):  
Yüksel Sarıkaya ◽  
Naime Didem Kahya ◽  
Abdullah Devrim Pekdemir ◽  
Müşerref Önal

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