Isolation and identification of marine strains of with high chitinolytic activity.

Chitin is the second most abundant organic compound in nature and represents a rich carbon and nitrogen source that is primarily transformed by bacterial communities. Bacteria capable of gradually hydrolyzing chitin into N-acetylglucosamine monomers can have applications in the transformation of residues from shrimp and other crustaceans. The objective of the present study was to isolate, characterize and identify microorganisms with high chitinolytic activity.

Characterization of -chitosan composite films and their use for reducing the disease caused by fungi in papaya Maradol.

Composite films with (A), chitosan (Ch) and essential oils (EOs) were formulated. Six of the twelve combinations tested formed films: A70Ch30, A70Ch30-15, A60Ch40, A60Ch40-15, A50Ch50, and A50Ch50-15. The A60Ch40-15 film showed the best physicochemical characteristics as well as the greatest in vitro antifungal activity.

Association Between SSR Molecular Markers and Chemical and Sensory Traits of Cacao Samples Using Multiple Regression Analysis.

The sensory properties of cacao beans are linked to the chemical composition of the seeds, and both characteristics are the partial results of its allelic composition. Therefore, it is useful to search for molecular markers associated with these traits. We perform multiple regression analysis to associate previously generated data of alleles generated with 12 SSR (of cultivated cacao trees) with data obtained from chemical and sensory characterization (of beans) of plants grown in the southern region from Mexico.

Production of cytotoxic compounds in dedifferentiated cells of L. (Euphorbiaceae).

This study addresses the culture as an alternative to obtain compounds with cytotoxic activity from the medicinal plant (Euphorbiaceae). We determined the presence of cytotoxic compounds in both whole plants and dedifferentiated cells. We evaluated the effect of auxin, cytokinins and light on callus induction in cotyledon explants.