<i>In vitro</i> and <i>in vivo</i> testing of the hypocholesterolemic activity of ergosterol- and β-glucan-enriched extracts obtained from shiitake mushrooms (<i>Lentinula edodes</i>)

Abstract

. Moreover, ergosterol (ERG) and the SFE extract (SFE) with highest ergosterol concentration were microemulsified and submitted to in vitro digestion to study their ability to displace cholesterol from dietary mixed micelles (DMMs). ERG was also mixed with a β-glucan-enriched (33.5%) extract (BGE) obtained from L. edodes to investigate the synergies between them; the results indicated that all these extracts (including BGE without ERG) could reduce the cholesterol levels in the DMMs. However, when ERG and SFE were simultaneously administered to mice with a hypercholesterolemic diet, no significant differences in the serum cholesterol levels were detected as compared to the case of the control. However, when only BGE was administrated to another mice model previously induced with hypercholesterolemia, significant reduction in the cholesterol levels was noticed.