Insights on Strain-Substrate Interactions and Antioxidant and Anti-Bacterial Properties of the Velvet Foot Medicinal Mushroom Flammulina velutipes (Agaricomycetes)

Abstract

To study the best substrate for the Indian subcontinent, four different substrates (sawdust &#43; wheat bran, wheat straw &#43; wheat bran &#43; corn cobs, sawdust &#43; corn cobs and wheat straw &#43; wheat bran) were screened for six different <i>Flammulina velutipes</i> strains. The antioxidant and antibacterial properties were studied for these strains. In study it was found that the strain DMRX-767 and DMRX-768 were the most promising for yield and biological efficiency in all substrates and wheat straw &#43; wheat bran being the best with respect to BE. To corroborate the findings, the best strain and best substrate trails were repeated. DMRX-767 and DMRX-768 were the most promising for yield and biological efficiency in all substrates, with wheat straw&#43;wheat bran were again found the best. The methanolic extract of strain DMRX-166 showed highest antibacterial properties as highest inhibition is found for <i>Bacillus subtilis</i> and <i>Pseudomonas syringae</i>. However, DMRO-253 inhibited <i>Ralstonia solanacearum </i>and <i>Xanthomonas campestris</i>. DMRX-768 has the best scavenging ability followed by DMRO-253.