physostigma การใช้

• It was another 4 years before another missionary sent home a flowering specimen preserved in alcohol, and the plant was finally given a name, Physostigma venenosum.
• Laqueur is remembered for his research of physostigmine, a chemical substance found in the Calabar bean ( " Physostigma venenosa " ) of West Africa.
• Julian also extracted stigmasterol, which took its name from " Physostigma venenosum ", the west African calabar bean that he hoped could serve as raw material for synthesis of human steroidal hormones.
• Robertson made several contributions in the field of ophthalmology; in 1863 he researched the effects on the eye made by physostigmine, an extract from the Calabar bean ( " Physostigma venenosum " ), which is found in tropical Africa.