Huber buys number one xanthan gum and pectin slot Huber buys number one xanthan gum and pectin slot 27-Jul-2004 Family-owned US firm JM Huber has become the number one pectin, xanthan gum and CMC supplier after yesterday agreeing to buy leading hydrocolloid firm CP Kelco from merchant bank Lehman Brothers, reports Lindsey Partos.