[Determination of the content of the main components of flavonoids compounds in raw malt, torrefied malt and ustulate malt].

Objective: To determine the content of Catechin, Myricetin, Quercetin and Kaempferol in barley grain, raw malt, torrefied malt and ustulate malt based on different barley cultivars.

Methods: HPLC method was used. Analysis was performed on Agilent ZORBAXSB-C18 (150 mm x 4.

Chemical variations of the essential oils in flower heads of Chrysanthemum indicum L. from China.

The volatile compositions of hydrodistilled essential oils in the flower heads of Chrysanthemum indicum L. from eight populations in China were analyzed by GC/MS. A total of 169 compounds representing 88.