Tobacco Documents Online

Details percentage of free and bound nicotine, and smoke pH for Kent III and experimental low-tar cigarettes.

Nicotine applied as free nicotine and nicotine tartrate to different tobaccos to increase N/T ratios in smoke. Nicotine was delivered in smoke in the same manner as naturally ocurring nicotine. The nicotine treated samples were so strong that they were unpleasant to smoke. "Only a small addition of free nicotine was needed to provide the impact of a higher nicotine cigarette." Suggestions for further work: Determine level of free nicotine necessary to provide "popular" impact; investigate ways of aplying nicotine/ nicotine salts to RL; investigate nicotine additions to different parts of production process.

States that delivery and proportion of extractable nicotine in the smoke will vary with changes in puff volume. Notes that extractable nicotine delivery varies by tobacco type, and suggests this variation is a function of pH of tobacco. Notes that retention of nicotine in the mouth increases with decreased puff volume. Concludes that puff volume is of extreme importance for determination of extractable nicotine delivery and retention.

Kools study demonstrates free nicotine and MRE increase with increasing smoke pH, while nicotine and nicotine/puff decrease. Smoke sensory analysis showed increased impact, irritation, tobacco taste, and menthol with increasing smoke pH. "Medium" sample was most acceptable, perceived as highest level of impact and irritation. Concludes that increased smoke pH may aid consumer acceptance.

Charts and notes detailing differences in smoke/ sensory character between major companies and emphasizing unique character of Marlboro. Among findings: PM brands rated natural/ weaker in sensory characteristics, while RJR rated natural/ stronger, and B&W rated stronger/ artificial. PM brands show reduced irritation vs. tar/puff. Marlboro pH profile higher than compared brands with spike in last puff, higher smoke ammonia, and greater nicotine transfer efficiency. Reverse engineering of Marlboro used to determine role of DAP and ammonia in dark recon, role of urea, and effect of PM band cast type recon (CPCL) on B&W blend. Concludes that both ammonia and DAP are necessary for best sensory effect; level of urea critical, and best if applied to low ammonia component; use of band cast type recon (with DAP) alters nicotine distibution, pH profile, and nicotine transfer efficiency (NTE).

BATCo memo on Potassium Carbonate. Notes that while potassium normally accelerates burning, potassium carbonate reduces it. States the use of potassium carbonate reduces tar because it slows burn rate, and reduces total nicotine quantity, but may enhance the "kick" of nicotine left, as the free nicotine from it is absorbed more quickly by the bloodstream.

Work done to determine the nature of free nicotine in tobacco "particularly since the amount of free nicotine in the tobacco has considerable affect on the quality of the finished product." Moisture content, solvent, and temperature are shown to affect amount of free nicotine in tobacco. Solution pH also affects determination.

Details test marketing of B&H De-Nic 85 cigarettes delivering 9mg tar and 0.08mg nicotine, and says the majority of nicotine was removed by the FreePlus system. Indicates Lorillard changed packaging appearance for Kent cigarettes, states Brown & Wiliamson is test marketing Barclay 83 cigarettes with a greater rod length and a 27mm Actron filter. Describes the introduction and test marketing of new brands in Japan by several tobacco companies and analyzes 'Smoke Free Twenty-Two Menthols', a product packaged as five pellets of tobacco-like material to be inserted into a hollow filter holder and reports: no nicotine, glycerin or polyethylene glycol [PG] was detected. Summarizes CORESTA studies of cigarette hot collapse, reports four R&D disclosures were recommended for patent filings, and mentions incorporating a goal-directed search feature into the Cigarette Design Expert System, allowing for exploration of a larger number of cigarette designs.

States purpose of study was "[t]o determine if changes in the amount of extractable nicotine (EN), delivery of nicotine in mainstream smoke, or both occur when ART cigarettes experience accelerated ageing under selected conditions". Includes sections: "Purpose; Method (A. Preparation of blend models and cigarettes; B. Incubation (I. Uydess and Project 1902); C. Collection and disposition of samples (I. Uydess and Project 1902); D. Extraction and analysis of nicotine (ARD); E. Measurement of MS nicotine (Cigarette Testing); F. Microbial analysis (Project 1902); G. Reporting, collation and interpretation of data; [and] H. Responsible persons".

Outlines Project Art; business strategies, goals, program components and objectives. Identifies goals of creating a nicotine replacement material with similar sensory effects, and maximizing sensory effects of available nicotine in the Art product. Seeks to enhance subjective impact of nicotine through manipulation of filler pH. Aims at a product with less than 0.1mg nicotine delivery.