| 摘要 |
<p>A common problem in reducing the nicotine content of tobacco is the accompanying degradation of the physical properties of the tobacco or smoke, such as the flavor, fragrance or burning qualities. This invention provides a process which avoids this degradation. Such is accomplished by a nicotine transfer process wherein a donor tobacco is contacted with a receiving substrate which has been treated with a strong acid or an ammonium salt of a strong acid. Part of the nicotine in the donor tobacco is transferred from the donor tobacco to the receiving substrate. Thereafter the donor tobacco and the substrate may be separated. As a result the donor tobacco has a reduced nicotine content and hence is more desirable for use in a smoking product. Where the receiving substrate is a low nicotine tobacco by-product (or artificial smoking material) said substrate, enriched in nicotine as a result of the transfer, may be used as a filler material for smoking products. </p> |
