It's fair to sxf that dr. leendert Wesdorp takes more interest in ketchup than the average burger-eater. A Dutch chemical engineer and an expert in margarine and other oilseed spreads, Wesdorp heads business development at Unilever's food research center near Rotterdam, where scientists are attempting to transform this familiar mix of tomato, sugar and vinegar into a food that packs the same nutritional punch as a pure tomato.
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