Fungicides for use in organic agriculture based on metal nanoparticles/plants/biopolymers. Structural characterization and evaluation of its biocidal action.

Currently, pest control is mainly done through the use of agrochemicals, which in many cases are synthetic and have caused the increase in the population of resistant phytopathogens, developing a significant increase in production costs and together, serious pollution problems. For this reason, it is that the global markets of certified organic products have grown radically in recent years. A plant fungicide (plant asset extract), combined with the use of metal nanoparticles (NPS) (NI, CO, MN, FE, MG, CU or AG) and stabilized in a biopolymer such as chitosan, can be used in the production of organic products and would be a very good alternative as a fungal Separate. To do this, it is proposed to perform the synthesis of NPS of Ni, CO, MN, FE, MG, CU or AG through the technique of chemical, Sol-Gel or solvothermal deposition, being techniques that provide a regularity of the size and form, in addition to producing few interferents and having high crystalline regular nanoparticles. This chitosano/NPS system is projected to incorporate plant extracts that can develop even more fungal activity with the incorporation of capsaicin, timol or cinamaldehyde, extracted from chili peppers, thyme and cinnamon, respectively. Finally, it is intended to carry out microbiological tests to these compositions to measure the activity presented in front of two important fungi that affect the cultivation of bananas such as Sigatoka and Fusarium. The components that form the fungal matrix have an important sensitivity to the region, the chitosan being in the first instance one of the main waste of the shrimp industry. In addition, 5 of the 9 species of capsicum (chili) existing in the country, occur in the Austro. In the same way, cinnamon production (cinamaldehyde) and thyme (timol) have a strong positioning in the province's trade. Finally, mining metal extractions are an importance of importance for the progress of the country and needs a sustainable thrust in the area of the Ecuadorian Sierra, which aims to deliver this project as contribution. The general objective is to develop a fungicide through the use of NPS of Ni, CO, MN, FE, MG, CU or ENPSULATED IN QUITOSANO to enhance the fungal and bactericidal action of the capsaicin (pepper pulp), timol (thyme extract) or cinamaldehyde (cinnamon extract) against the fungi of study (Sigatoka and Fusarium).

OUTSIDE THE CALL FOR PROPOSALS EXTERNAL FUNDS