| evaluation of propolis. i. evaluation of brazilian and chinese propolis by enzymatic and physico-chemical methods. | to establish a method of evaluating propolis, the effects of the ethanol and water extracts from various collecting of propolis from different countries and plant sources on hyaluronidase activity were investigated along with their absorption spectra and specific absorbance (e(1%)1 cm value). the relations between the hyaluronidase inhibitory activities of these extracts and their e(1%)1 cm values were also examined, and the following was found: 1) the enzyme inhibitory activities of the ethanol ... | 1997 | 9178928 |