Paulownia Tomentosa Leaf Extract 25% ursolic acid
[ Latin name ] Paulownia fortunei （Seem.） Hemsl. P.tomentosa （Thunb.） Steud.
[ Part of Plant Used ] Leaf
[ Appearance ] Light green powder
[ Active ingredients ] Aucubin, Paulownioside,Verbascoside,Isoverbascoside,Ursolic acid, Acetylursolicacid α, Acetylursolicacid β
About Paulownia Tomentosa Leaf Extract
Several crystals isolated from Paulownia Tomentosa Leaf Extract have a certain inhibitory effect on 8 common bacteria, influenza virus and Sendai virus. The minimum inhibitory concentration of ursolic acid contained in Paulownia Tomentosa Leaf Extract against Gram-positive bacteria, Gram-negative bacteria and yeast in vitro is 50-400μg/ml, 200-800μg/ml and 100-700μg/ml respectively. Paulownia tomentosa flower extract also has relatively strong bacteriostatic effects.
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