Lignin represents a potentially significant natural sunscreen alternative due to its good UV-absorbing ability, but its poor UVA absorption and dark colour are still obstacles. Numerous methods have been developed to whiten the colour of lignin, mainly including aromatic ring interruption and hydroxyl group blocking. However, these complicated procedures would weaken the UV-blocking and radical scavenging abilities.
View Article and Find Full Text PDFA new aurone named (2)-2-[(4'-hydroxy-3'-methoxyphenyl) methylene]-6-methoxy-7-prenyl-3(2)-benzofurane (), together with five known compounds (), were isolated from EtOAc-soluble extract of the stems of . The chemical structures were elucidated on the basis of spectroscopic analyses. All isolates were evaluated for inhibitory activity on α-glucosidase.
View Article and Find Full Text PDF