Conversion mechanism of 5-hydroxymethylfurfural in process of bran-fried Atractylodes lancea Studies on the Pharmacological Action of Various Processed Mylabris phalerata Pallas Analysis on changes of chemical compounds in different samples of  fried Foeniculum vulgare Discriminating processed betel nut‘s degree of stir-frying and quantizing empirical index based on color difference meter and electronic nose fingerprint analyzer Effects of different processing methods on content of flavonoids from Sophorae Fructus