We investigated reducing sugars, bioactive compounds and antioxidant activity of 24 accessions of quinoa of the national collection of INIA Peru. The seeds showed total phenolic between 0,783 to 3,437 mg GAE/g, total flavonoids between 0,199 and 1,029 mg CE/g sample, betacyanins and betaxanthins in amounts not significant and reducing sugars between 30,973 and 88,278 mg of glucose equivalent/g sample. The antioxidant activity by DPPH and ABTS showed significant differences between different quinoa seeds studied.

Oregano (Origanum vulgare L.) is an aromatic native plant originated from the Mediterranean region and it's traditionally grown in the south of Peru. The crop has adapted well over 2600 m.a.s.l. Bellow this altitude, the concentration of essential oils (thymol and carvacrol) decreases. The development of this method is essential to provide tools for decision making to identify regions where one or more ecotypes can potentially grow and produce high quality of essential oils contents of thymol and carvacrol. As part of the activities, it was necessary to develop a protocol to quantify HPLC for the oregano crop. The proposed method uses a HPLC with a fluorescence detector, isocratic mobile phase of acetonitrile and water (ACN): H O (50:50), a column Purospher® STAR rp-18e (4.6 x 2 150mm, 5µm), flow 1 ml/minute, injection volume of 20 µLand run time of 15 minutes. The present method has ...