Sensient Technologies Corporation reported diluted earnings per share of 34 cents for its first quarter ended March 31, 2006. Diluted earnings per share in the prior year’s first quarter were 27 cents. First quarter 2006 revenue increased 4.8 percent, to $262.9 million, as a result of higher sales within the Flavors & Fragrances Group. “Our cost reductions, product mix improvement and price increases are producing results,” said Kenneth P. Manning, chairman, president an...