BUZZ-Premier Foods: McCormick sweetens offer for co
** Premier Food's shares up 8.8 pct after McCormick & Co raises possible offer for co to 65p per share from earlier 60p offer
** Shares (Berlin: DI6.BE - news) still trading below offer price, at 61p, a 2-1/2 yr high; nearly 30 pct of their daily avg vols gone through in the first 15 mins of trade
** Stock largest FTSE small-cap gainer, index up 0.5 pct on the day (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)