Extraction and determination of ellagic acid contentin chestnut bark and fruit.

摘要: Abstract Chestnuts are an important economic resource in the chestnut growing regions, not only for fruit, but also wood. The content of ellagic acid (EA), a naturally occurring inhibitor carcinogenesis, was determined fruits and bark. EA extracted with methanol free by HPLC UV detection, both crude extract after hydrolysis. concentration generally increased hydrolysis due to presence ellagitannins extract. varied between 0.71 21.6 mg g−1 (d.w.) un-hydrolyzed samples, 2.83 18.4 mg g−1 hydrolyzed samples. In fruits, traces were present seed, higher concentrations pellicle pericarp. However, all fruit tissues had lower than samples showed non-linear correlation unhydrolyzed extracts.