![]() This method is based on the reaction of ozone and 2.2’-azino-bis (3-ethylbenzothiazoline-6-sulfonate), ABTS), which can be oxidized from a colorless material to a green-colored cation ABTS.+. The phytochemical investigations in this study resulted in the isolation of friedelin and 3β-friedelinol for the first time, while euphol and lanosterol were also isolated. ABSTRACT A new spectrophotometric method for the determination of aqueous ozone in water matrices was developed. These biological activities may be associated with the presence of flavonoids and terpenes, as revealed by HPLC and NMR analyses of the crude stem bark extract. Furthermore, the oral administration of the crude bark extract was able to reduce carrageenan-induced rat paw edema as effectively as ibuprofen. -, and HOCl, as well as an enzymatic system with human myeloperoxidase and an ex vivo hemolysis system.Pharmacological investigation of the crude bark extract showed a high antioxidant activity over several scavenger systems, such as 2,2'-azino-bis (3-ethylenebenzothiazoline-6-sulfonic acid) ![]() Based on the fact that Synadenium grantii is used in folk medicine for the treatment of peptic ulcers and inflammatory diseases, this work describes its chemical and pharmacological properties.
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