US Patent 10226066 Rosemary in a tobacco blend

Provided are smoking products and methods of preparing smoking products that include tobacco and a deflavored rosemary or a heat-treated rosemary. The deflavored and/or heat-treated rosemary may have been previously heated at a temperature and a time sufficient to reduce or remove flavorant components compared to the use of untreated rosemary. The heated rosemary may include one or more pentacyclic triterpenoid acids such as betulinic, betul-18-enoic, oleanolic, and ursolic acids.