11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi1

11/21/20162PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi Food get spoilt Action of Microorganism: Microorganisms grow when food has high moisture content.(dry pulses or dry nuts remain unspoiled for a long time rather than cooked vegetables. Air around the food has microorganisms

11/21/20163PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi Food get spoilt Action of Microorganism: Microorganisms grow Food is kept for a long time at room temperature Skin of the fruits and vegetables gets damaged and exposes to microorganisms. Food has low salt and sugar content.

11/21/20164PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi Microorganism

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi5 Preservation of Food Preservation is a process by which some fruit and vegetables are prevented from getting spoilt for a long period of time. Food needs to be preserved in order to a)Reduce wastage b)Add variety and flavour to meals c)Reduce bulk and make storage ands transportation easy

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi6 Preservation of Food Reduce wastage We keep excess food in the refrigerator to consume it later. It prevents wastage of food.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi7 Preservation of Food Add variety and flavour to meals Preserved foods like pickle, chutney, papad, murabba, juice and squash add flavour to meals.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi8 Preservation of Food Reduce bulk and make storage ands transportation easy If we dry green leafy vegetables such as mint, methi, coriander, etc., their weight and volume reduces. It makes their storage easy.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi9 Preservation of Food

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi10 Preservation of Food Methods of Food Preservation 1.Pickling 2.Canning and Bottling 3.Drying

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi11 Preservation of Food Pickling: Food is placed or cooked in a substance or pickling agent that kills bacteria and other microorganisms to prevent their growth. Typical pickling agent include brine (high in salt), vinegar, ethanol, and vegetable oil. Especially olive oil. Most pickling process involves boiling or heating

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi12 Preservation of Food Methods of Food Preservation Pickling

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi13 Preservation of Food Canning and bottling Canning involves cooking fruits or vegetables. Sealing them in sterile cans or jars, and boiling the containers to kill ot weaken any remaining bacteria.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi14 Preservation of Food Methods of Food Preservation Canning and Bottling

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi15 Preservation of Food Drying : It is the oldest method of preserving food. Drying reduces water content. It delays bacterial growth. Meat, Fruits like apples, pears,bananas, mangoes, papaya, apricot and coconut can be dried.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi16 Preservation of Food Drying Currants, sultans, raisins are forms of dry grapes. Cereal grains such as wheat, maize, oats, barley, rice, millet, and rye are also preserved by drying.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi17 Preservation of Food Methods of Food Preservation 1.Drying

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi18 Preservation of Food Methods of Storing 1.Freezing 2.Vacuumn – packing 3.Salting

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi19 Preservation of Food Methods of Storing 1.Freezing

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi20 Preservation of Food Methods of Storing 1.Vacuumn – packing

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi21 Preservation of Food Methods of Storing Salting and sweetening

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi22 Preservation of Food How is mamidi tandra prepared ? Go to the Worksheet and fill upWorksheet and fill up.

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi23 Salting _______________ Boiling _______________ dehydration _______________ Sweetening _______________ Canning _______________ Oiling _______________ Drying _______________ Name the food preserved/stored by… Go to the worksheet

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi24 Identify and Sort as vegetables available in summer/winter/throughout the year

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi25 Eat Healthy, Be Healthy

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi26 Microorganism Latest Use Chennai Corpoaration uses specially developed microorganism to convert garbage into manure

11/21/2016PPT by R.Jayalakshmi,PRT,KV,CRPF, Avadi27 THANK YOU BYE…………………….