Produit naturel abordable réduit les pertes de fruits et augmente les revenus : profil de projet

Version anglaise dans la bibliothèque: Affordable natural product reduces fruit losses, increases incomes : project profileCe travail a été réalisé grâce à une subvention du Centre de recherches pour le développement international (CRDI) et du soutien financier du gouvernement du Canada, par l’intermédiaire d’Affaires mondiales Canada (AMC)Des chercheurs de l'Inde, du Sri Lanka et du Canada ont prouvé qu'un produit végétal naturel et abordable prolonge les récoltes et la durée de conservation et la qualité des mangues. Maintenant, les organismes gouvernementaux, les agriculteurs, les fédérations de producteurs et les entreprises d'emballage d'Asie, d'Afrique et des Caraïbes redoublent d'efforts pour commercialiser cette technologie et accroître son utilisation pour une variété de fruits

Affordable natural product reduces fruit losses, increases incomes : project profile

French version available in IDRC Digital Library: Un produit naturel abordable réduit les pertes de fruits et augmente les revenus : profil de projetThis work was carried out with the aid of a grant from Canada’s International Development Research Centre (IDRC), and with financial support from the Government of Canada, provided through Global Affairs Canada (GAC)Patents are pending for an innovative technique that uses nanotechnology to extend and optimize the use of hexanal to keep fruits fresh and firm longer. This project brief outlines next steps for a team of 35 men and women researchers, working with academic and industry leaders, to develop nine easy-to-use commercial products, including hexanal sprays and dips for pre- and post-harvest use. Government agencies, farmers, grower federations, and packaging companies from Asia, Africa, and the Caribbean are stepping up efforts to commercialize this technology and expand its use for a variety of fruits

CIFSRF final technical report : Enhanced Preservation of Fruits Using Nanotechnology (CIFSRF Phase 2)

Annexes catalogued separatelyAcknowledgement: This work was carried out with the aid of a grant from Canada’s International Development Research Centre (IDRC), www.idrc.ca, and with financial support from the Government of Canada, provided through Foreign Affairs Canada (GAC), www.international.gc.ca.This paper provides a synthesis of very positive results and milestones from various trials of hexanal on a variety of tropical fruit crops in five countries. Based on trial discoveries, a spray formulation with hexanal as the key ingredient (called Enhanced Freshness Formulation or EFF) was developed and safely tested on many fruit crops as a pre-harvest spray as well as a postharvest dip treatment. In mango and banana cultivation, hexanal use positively affected the entire value chain. It is a naturally occurring enzyme and safely extends the shelf life of fruit, with potentially huge impact on postharvest losses

Mode of action of chitosan coating on anthracnose disease control in papaya

The effect of a chitosan coating on antifungal activity and rate of respiration, chitinase and β,1-3 glucanase activities with reference to papaya variety 'Rathna' was investigated. One percent chitosan, extracted from locally available prawn waste, was selected as the effective concentration to inhibit spore germination via a series of experiments on potato dextrose agar. Rate of respiration and the concentration of CO in the internal cavity of chitosan-treated and untreated papaya were tested via gas chromatography. Chitinase and β,1-3 glucanase activities were tested in peel samples using gel diffusion and spectrophotometric assays, respectively. Complete inhibition of spore germination was observed in-vitro at treatments of 1% chitosan and above. This concentration significantly (P < 0.05) reduced both disease incidence and severity on inoculated fresh papaya. Significant (P < 0.05) decrease was observed in rate of respiration while internal CO concentration of the fruit increased (P < 0.05) with the chitosan treatment. Chitinase and β,1-3 glucanase activities of papaya variety Rathna subjected to chitosan treatment were much higher than in the untreated control. Chitosan shows antifungal activity to the anthracnose disease causing fungus and stimulates the defense response on the papaya peel by increasing the chitinase and β,1-3 glucanase activities. The antifungal activity of chitosan could be attributed to the induction of elicitation activity due to these defense enzymes. It also forms a semi-permeable coating around the fruit and extends storage life of papaya by reducing the rate of respiration and delaying ripening