Abstract:
Described herein is a process for obtaining a UV-absorbing material, optionally 1,2,3,4,6-pentagalloyl glucose, from sumac leaves and/or budding fruits, as well as a UV-absorbing material obtained according to said process, and compositions comprising such a UV-absorbing material. The process comprises contacting sumac leaves and/or budding fruits with a water miscible organic solvent, and removing the water-miscible organic solvent. Compositions described herein sunscreen compositions wherein a concentration of the UV-absorbing material is at least 0.005 mg/ml, as well as pharmaceutical and/or cosmetic compositions.
Abstract:
Disclosed are dihydrochaicone derivatives useful in the treatment of inflammatory and neuro-inflammatory diseases such as Alzheimer and Parkinson or conditions such as stroke. Both a and β carbons of the dihydrochaicone are hydroxylated. Also disclosed are methods of using such compounds in the treatment of inflammatory diseases in mammals and pharmaceutical compositions containing such compounds.