Here is another story looking at product development focussing on premium products which avoid heat treatment in processing.
The BRIS process uses ambient temperature air which has been dried using heating and silica gel to a few percent relative humidity, in a counter current drying tower.
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This application by Naturex, a French company more focussed on natural ingredients for the food & beverage, nutrition and health and personal Care industries, is a first for them. The products main selling point appears to be their good organoleptic properties and their ease and quality of reconstitution.
This 6 page summary is a short overview of processing tomatoes at the small scale farmer level. The production of powder, pulp, jam and ketchup using household, self built and small scale equipment is described.
It has a contact details for a few appropriate support organisations and it published by The ACP-EU Technical Centre for Agricultural and Rural Cooperation (CTA) who could also provide more information.