The present invention discloses an economically viable process for producing large quantity of higher fatty alcohol of chain length C.sub.24 C.sub.36 from natural waxes. The said alkanols have enriched percentage of 70 95% of C.sub.28 fatty alcohol (Octacosanol) along with less percentage of lower chain length fatty alcohols. The invention discloses the use of supercritical carbon dioxide extraction along with immobilized enzyme for saponification. The present invention also discloses the cosmetic applications of alkyalkanols collectively referred to as policosanol, for control of sebum secretion and as anti-acne component effectively used in cosmetic formulations.

 
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> Systems and methods for high-resolution in vivo imaging of biochemical activity in a living organism

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