Flavonoids and antioxidant activity of extracts of flowers from some Mexican accessions of Crataegus were studied using six accessions with the purpose of contributing to the knowledge of the nutraceutical properties of the accessions of the Germplasm Bank of the Universidad Autonoma Chapingo. Flavonoids were identified by HPLC-MS. Among the flavonoids, the quercetin 3-O-glucoside (3), quercetin 3-O-rhamnoside (4), quercetin 3-O-rhamnosyl-(1 → 6)-glucoside (2) and quercetin 3-O-rhamnosyl-(1 → 2)-[rhamnosyl-(1 → 6)]-glucoside (1) were assigned. Flavonoid content and radical scavenging activity explain some of the medicinal properties attributed to flowers of Mexican hawthorns.
A multidisciplinary group of teachers and scientists from the Faculty for Higher Education (FES) Zaragoza from the National Autonomous University of Mexico (UNAM) is dedicated to the continuous improvement of biochemistry teaching within the programme of chemistry, pharmacy and biology (QFB) at our University. To provide our teachers with modern teaching abilities is our top priority. Therefore, we offer various activities to promote their continuous scientific and didactic updating. We also encourage self-awareness on the strong need for continuous adaptation and utilization of information and communication technologies (ICT) that have become very popular among young generations. Teaching is not an isolated discipline. On the contrary, teaching is intimately related with social and economic circumstances. Teachers and students must be aware of their social environment, continuously improving their capability to approach national problems with an accurate utilization of national resources. Research and development have to be linked to the best teaching techniques that stimulate teachers and scientists to grow as educators and experimenters. Our scientific meetings and courses on scientific topics and teaching techniques have contributed not only to promote individual teaching and scientific capabilities but also to update the study programme from the QFB curricula at our University.
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