ABSTRACT

References .......................................................................................................................... 395

Natural menthol is obtained by freeze crystallization from crude cornmint oil. Although the

oil has been produced in a number of different countries, the major cornmint oil producers

are India and China. In general, 48% to 50% of the menthol present in cornmint oil can be

from 100 kg of oil (in which menthol content

ranges from 70% to 77%), 33.6 to 38.5 kg of menthol can be isolated using normal production

procedures.