Bioactive Constituents and Antioxidant Activity of Moroccan garlic (allium sativum L).

Garlic (Alliym sativum) is a good source of total polyphenols content. These compounds reveal activity effectiveness not less than synthetics. The aim of current research is to study and compare an antiradical activity, phenolic, flavonoid and flavonol contents of garlic of five areas in Morocco. Those contents were determined using spectrophotometric method. Antioxidant activities were studied using two methods: DPPH and ABTS radical scavenging activity. On the basis of findings it turned out that total polyphenolic compounds and antioxidant activities varied from one area to another. Moreover, ABTS radical scavenging activity demonstrated better results compared to DPPH method and the results showed, in general, a good correlation could be found between antioxidant activity and polyphenolic compounds. Keywords: Garlic, Allium sativum, polyphenol compounds, antioxidant activity.

Chemical diversity of essential oil of the Moroccan endemic Origanum grosii in natural populations and after transplantation

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Metal-rich ternary perovskite nitrides

Research interest in inverse perovskite nitrides, since the early beginnings in the 1940s has considerably intensified in recent years. Within the last decades exploration lead to a wide variety of new compounds, compositions and structural arrangements. Electronic properties of the novel materials span from insulating and semiconducting via semimetallic and metallic, depending on element combination. Similarly, magnetic properties qualify for various applications, according to frequently high Curie temperatures and saturation magnetizations, together with development of delicate magnetic structures and often occurring metamagnetic transitions, to give only few examples. This minireview is intended to give an overview on formation of such metal-rich compounds with focus on chemical systems and crystal chemistry