Plant polysaccharides

IR spectroscopy has been used to detect a mannan inUngernia bulbs. The mannan was determined qualitatively and quantitatively directly in a preparation of ground bulbs, avoiding the process of extracting the polysaccharide.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodynykh Soedinenii, No. 5, pp. 683–685, September–October, 1997.