Xanthan cov pos hniav zoo li cov hmoov dawb los yog daj daj uas tsis muaj ntxhiab tsw txawv thiab yooj yim soluble hauv dej. Thaum tawg, nws tsim cov kua nplaum uas muaj kuab heev uas tau muab faib ua cov kua dej tsis yog -Newtonian; nws pom ib qho tseem ceeb thickening nyhuv txawm nyob rau hauv tsawg concentrations. Nyob rau hauv chav tsev kub, qhov viscosity ntawm 1% aqueous tov feem ntau nyob nruab nrab ntawm 4,000 thiab 12,000 mPa·s, ib qho kev ntsuas uas tuaj yeem hloov kho kom haum rau ntau yam kev siv tshwj xeeb. Nws tus nqi pH poob hauv thaj tsam ntawm 6.0 txog 8.0; poob ntawm ziab tsis tshaj 15%, cov ntsiab lus tshauv tseem nyob hauv 4%, thiab cov ntsiab lus noo noo feem ntau qis dua 12%. Cov pab pawg carboxylate-tam sim no nyob rau hauv daim ntawv ntawm sodium, potassium, los yog calcium ntsev- muab kev tiv thaiv kub zoo, kua qaub-alkali stability, thiab ntsev kam rau xanthan cov pos hniav, ua kom nws ruaj khov ntawm cov khoom noj, tshuaj, thiab kev lag luam.
Khoom noj khoom haus- qib thiab kws tshuaj- qib xanthan cov pos hniav yuav tsum nruj heev txog cov ntsiab lus microbial: tag nrho cov suav suav yuav tsum tsis pub tshaj 1,000 CFU/g, thiab cov pwm thiab cov poov xab suav yuav tsum tsis pub tshaj 100 CFU/g. Tsis tas li ntawd, lawv yuav tsum tsis txhob muaj cov kab mob pathogenic xws li * E. coli * thiab * Salmonella *. Cov ntsiab lus ntawm cov hlau hnyav yog tswj nruj heev, nrog cov hlau lead tsis tshaj 5 mg / kg thiab qib arsenic tsis tshaj 3 mg / kg. Xanthan cov pos hniav nthuav tawm cov tshuaj toxicity tsawg thiab ua rau tsis muaj teeb meem rau daim tawv nqaij lossis qhov muag. Nws cov kev daws teeb meem zoo stabilize tshem tawm cov khoom thiab emulsion systems thaum tswj cov cua sov, acids, alkalis, thiab ntsev, ua rau nws zoo heev rau siv rau hauv cov khoom noj, dej haus, tshuaj pleev ib ce, tshuaj npaj, thiab ntau yam khoom lag luam.
