Menthol produces a cooling sensation on the skin. This is not an actual lowering of skin temperature, but occurs because it directly triggers the nerves that are sensitive to cold. It may also enhance the effects of other compounds in the topical preparation.
It is added during processing. In cigarettes, it is added to the filters.
Kool Brand cigarettes have strong mint flavour because menthol is added to the carton before packaging.
Citric acid is added for tartness.
To maintain pH=10
Sodium chloride is added to precipitate the soap.
Menthol, the cooling agent in peppermint, is added to almost all commercially available cigarettes. Menthol stimulates olfactory sensations, and interacts with transient receptor potential melastatin 8 (TRPM8) ion channels in cold-sensitive sensory neurons, and transient receptor potential ankyrin 1 (TRPA1), an irritant-sensing channel. It is highly controversial whether menthol in cigarette smoke exerts pharmacological actions affecting smoking behavior. Using plethysmography, we investigated the effects of menthol on the respiratory sensory irritation response in mice elicited by smoke irritants (acrolein, acetic acid, and cyclohexanone). Menthol, at a concentration (16 ppm) lower than in smoke of mentholated cigarettes, immediately abolished the irritation response to acrolein, an agonist of TRPA1, as did eucalyptol (460 ppm), another TRPM8 agonist. Menthol's effects were reversed by a TRPM8 antagonist, AMTB. Menthol's effects were not specific to acrolein, as menthol also attenuated irritation responses to acetic acid, and cyclohexanone, an agonist of the capsaicin receptor, TRPV1. Menthol was efficiently absorbed in the respiratory tract, reaching local concentrations sufficient for activation of sensory TRP channels. These experiments demonstrate that menthol and eucalyptol, through activation of TRPM8, act as potent counterirritants against a broad spectrum of smoke constituents. Through suppression of respiratory irritation, menthol may facilitate smoke inhalation and promote nicotine addiction and smoking-related morbidities.
Yes, sugar simply add egg whites. I guess that's just reality
Barium chloride in excess is added to be sure that the reaction is complete.
ammonia solution is added during the preparation of EDTA solution to increase the rate of dissolution of its disodium salt.
when the effluents added to water
Heat is added to ice to make it melt.
Because fresh herbs will loose their flavor if cooked too long, they should be added during the final 5 to 10 minutes of preparation.