Comparison of composition and absorption of sugarcane policosanols

Br J Nutr. 2007 Feb;97(2):381-8. doi: 10.1017/S0007114507336763.

Abstract

Policosanols (PC) exist as very-long-chain alcohols derived from sugarcane currently used in many countries as a cholesterol-lowering therapy. PC purity and relative percentage composition have been suggested as primary reasons why the original Cuban PC (OPC) supplements possess lipid-lowering efficacy. The purpose of the present study was, first, to compare the relative percentage purity and PC composition of both OPC and alternative sources of PC (APC). A second objective was to feed Syrian hamsters a diet containing 0.275 mg PC/g of either the OPC or an APC product (APC1) and compare subsequent tissue, plasma and faecal PC levels. Five animals from the APC1 dietary group received a diet containing ten times the original amount of PC. Results indicate that the APC formulations have a composition that is highly consistent with the OPC supplement, with octacosanol being present within the cited 60-70 % range. PC were undetectable in the small intestine, liver, adipose or plasma in animals fed either source. Hamsters fed OPC excreted octacosanol (C28) more rapidly (P < 0.05) than hamsters receiving APC1. If the cholesterol-lowering efficacy of PC mixtures is dependent on their purity and composition, then sugarcane-derived APC products should possess similar therapeutic properties as the OPC supplement.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Absorption
  • Animals
  • Anticholesteremic Agents / administration & dosage
  • Anticholesteremic Agents / chemistry*
  • Anticholesteremic Agents / pharmacokinetics
  • Cricetinae
  • Cuba
  • Dietary Supplements
  • Fatty Alcohols / administration & dosage
  • Fatty Alcohols / chemistry*
  • Fatty Alcohols / pharmacokinetics
  • Fatty Alcohols / urine
  • Feces / chemistry
  • Mesocricetus
  • Saccharum / chemistry*
  • Tissue Distribution

Substances

  • Anticholesteremic Agents
  • Fatty Alcohols
  • policosanol
  • 1-octacosanol