Axel Heinemann: 1 revision

2014-12-16T06:14:41Z

1 revision

Franz Schreier at 09:30, 15 December 2014

2014-12-15T09:30:12Z

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{{Powering Agriculture Technology Database
|PAT quality check=Yes
|PAT Name=Vegetable Dryers
|PAT Picture=Vegetable Dryer.jpg
|PAT Type RE=Renewable Energy
|PAT Type Alternative=Alternative Methodology
|PAT Description=Food drying is a way to preserve fruit, vegetables, and animal proteins after harvest, that has been practiced since antiquity,[1] and a food dehydrator refers to a device that removes moisture from food to aid in its preservation. A food dehydrator uses a heat source and air flow to reduce the water content of foods. The water content of food is usually very high, typically 80% to 95% for various fruits and vegetables and 50% to 75% for various meats. Removing moisture from food restrains various bacteria from growing and spoiling food. Further, removing moisture from food dramatically reduces the weight of the food. Thus, food dehydrators are used to preserve and extend the shelf life of various foods.
Source: http://en.wikipedia.org/wiki/Food_dehydrator

A solar or electric food dehydrator can greatly speed the drying process and ensure more consistent results. Water is usually removed by evaporation (air drying, sun drying, smoking or wind drying) but, in the case of freeze-drying, food is first frozen and pressure is reduce to a level that sublimation will take place then the water is removed. Bacteria, yeasts and molds need the water in the food to grow, and drying effectively prevents them from surviving in the food.
|PAT Technology Application Solar=Solar
|PAT Technology Application Other=Any renewable heat source
|PAT Value Processing=Processing
|PAT Value Preservation=Preservation
|PAT Actions Drying=Drying
|PAT Commodity Cereals=Cereals
|PAT Commodity Fruits Vegetables=Fruits and vegetables
|PAT Commodity Nuts Berries=Nuts and berries
|PAT Commodity Meat Products=Meat products
|PAT Commodity Roots and Tubers=Roots and Tubers
|PAT Commodity Pulses=Pulses
|PAT Commodity Stimulants=Stimulants
|PAT Commodity Spices=Spices
|PAT Dev Region Worldwide=Region
|PAT Dev Region Middle East=Middle East & North Africa
|PAT Dev Region Not Available=
|PAT Dep Region Worldwide=Worldwide
|PAT Dep Region South Asia=
|PAT Dep Country South Asia=
|PAT Dep Region Africa=
|PAT Dep Country Africa=
|PAT Dep Region East Asia=
|PAT Dep Country East Asia=
|PAT Dep Region Europe=
|PAT Dep Country Europe=
|PAT Dep Region Latin America=
|PAT Dep Country Latin America=
|PAT Dep Region Middle East=
|PAT Dep Country Middle East=
|PAT Dep Region North America=
|PAT Dep Country North America=
|PAT Dep Region Not Available=
|PAT Dep Pot Region Worldwide=Worldwide
|PAT Dep Pot Region South Asia=
|PAT Dep Pot Country South Asia=
|PAT Dep Pot Region Africa=
|PAT Dep Pot Country Africa=
|PAT Dep Pot Region East Asia=
|PAT Dep Pot Country East Asia=
|PAT Dep Pot Region Europe=
|PAT Dep Pot Country Europe=
|PAT Dep Pot Region Latin America=
|PAT Dep Pot Country Latin America=
|PAT Dep Pot Region Middle East=
|PAT Dep Pot Country Middle East=
|PAT Dep Pot Region North America=
|PAT Dep Pot Country North America=
|PAT Dep Pot Region Not Available=
|PAT Manufacturers=N/A
|PAT Links=http://en.wikipedia.org/wiki/Food_dehydrator

http://www.nda.agric.za/docs/solar/solardrying.htm

http://www.malnutrition.org/solar-flex.php

http://www.fao.org/docrep/V5030E/V5030E0b.htm

http://www.unido.org/fileadmin/user_media/Publications/Pub_free/Small_scale_fruit_and_vegetable_processing_and_products.pdf

http://www.villageearth.org/pages/sourcebook/crop-drying-preservation-and-storage

http://www.alternative-technologie.de/Solarer_Trockner/solarer_trockner.html

http://www.fao.org/docrep/003/X3996E/x3996e42.htm

http://madryer.info/solar-vegetable-dryer/

https://practicalaction.org/small-scale-drying-technologies

https://practicalaction.org/drying-answers/page:1
|PAT Category=Food Conservation
|PAT Pumping=
|PAT Lighting=
|PAT Heating=
|PAT Cooling=
|PAT Wind=
|PAT Biomass=
|PAT Biofuel=
|PAT Biogas=
|PAT Humans=
|PAT Animals=
|PAT Biochar=
|PAT Composte=
|PAT Insects=
|PAT Plants=
|PAT Others=
}}

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Vegetable Dryers (PA Technology) - Revision history

Axel Heinemann: 1 revision

Franz Schreier at 09:30, 15 December 2014