METHOD AND KIT FOR MICROBIOLOGICALLY IDENTIFYING VITAMINS IN SUBSTANCE MIXTURES

摘要

The invention relates to a method for quantitatively identifying vitamins, amino acids or other life-essential substances in a substance mixture during which a predetermined number of vital cells of a suitable microorganism are constantly prepared in the culture vessel, i.e. in the cavities of a microtitration plate. The cells are shock-frozen in a freezing solution containing 200 to 500 mM trehalose/sucrose at -80 °C and are then freeze-dried. The freezing solution is preferably the test medium. The culture vessels are preferably the cavities of a microtitration plate.