... than twenty industrial fields,such as food, pharmaceutical,fine chemical,agriculture,oil drilling and exploitation,and so on. Comparin with other kinds ... acid,alkaline,brine,enzyme,surface active agent,antiseptic,oxidant and other thickener.5,Good synergistic action when compounding with ... . 1983, FAO/WHO approved xanthan gum as safe food additive and didn't limit its additional ratio. As a nature ...