ANTIBIOTICS AND NATURAL DYE FROM CATALPA OVATA BARK EXTRACT

摘要

PURPOSE: Provided are antibiotics, natural dye and cosmetic containing a Catalpa ovata bark extract, and a method for manufacturing antibiotic fibers using the same. 6-o-trans-cafeoil-beta-D-glucopyraside, as an extracted component of Catalpa ovata bark is used as natural dye, and the Catalpa ovata bark extract is used as an antibiotic. CONSTITUTION: Antibiotics and natural dye are characterized by containing an extract of Catalpa ovata bark as an effective ingredient. 6-o-trans-cafeoil-beta-D-glucopyraside, as an extracted component of Catalpa ovata bark, is represented by the formula(I), and shows excellent dyeing property, and the extract of Catalpa ovata bark has excellent antibiotic activity.