BUZZ-Tate & Lyle: ramp-up in ingredient costs bites
** Food ingredients maker Tate & Lyle's shares down 6.2 pct, set for its worst day in a year, after saying that its full-year pretax profit would be lower
** Co says FY pretax profit at constant currency will be flat at 193 mln stg, but will be lower at reported rates as margins, forex bite
** Co says margins in Food Systems unit declined as ingredient costs increased
** Shares (Berlin: DI6.BE - news) at nearly 5-mth lows, bottom of the Stoxx 600 Food and Beverage Index
** Nearly half of co's 30-day avg vols gone through in the first hour of trade (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)