“… PAs differed greatly, which may be related to their chemical structures; the blocking … acid, 86.8%; sinapinic acid, 86.2%; ferulic acid, 81.1%; chlorogenic acid , 69.4%; gentisic acid, 69.2%; syringic acid, 62.1%; protocatechuic acid, … acid had the least blocking effect or even slight catalyzing effect.”