1 / 38

K.H.Sarananda Food Research Unit DOA

Excessive postharvest loss of fruits and vegetables 20% - 40%If losses are reduced a. Enough food for consumption b. Reduce the price gap c. Less environmental pollution d. Maximize use of resources. Introduction. Research on fruitsDevelopment of maturity indices

merlin
Download Presentation

K.H.Sarananda Food Research Unit DOA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    22. Fruit Ripening

    23. CaC2 + H2O C2H2 + CaO Carbide is a byproduct of kilns Possibility of containing Arsenic hydride Phosphorous hydride Danger: Fat soluble If carefully used chemical contaminants can be avoided

    24. Disadvantages of carbide Chemical contaminants Strong odour Highly exothermic reaction Ripened immature fruits- poor flavour Can be explosive

    25. Ethral induced ripening 2-chloroethyl phosphonic acid C2H4 pH 3.5 pH 5.5 Use of Ethral for fruit ripening

    26. % wt loss, TSS and % acidity in Ethral treated bananas

    27. Method of application of Ethral

    28. Artificially ripened fruits are less tasty Natural Artificial Stage of ripening is determined by the peel colour If another day is given develop the same quality

    29. Quality of ripened mangoes, KC

    30. Tips on artificial ripening Should involve only induction Provide only threshold level Ripening due to autocatalytic ethylene Must select mature fruits

    31. Misused ripening Green pineapple to change peel colour Immature mango Immature durian Immature lime Green mature papaya Green mature passion fruit

More Related