Other organic compounds include proteins, organic acids, pentosans and pectins (gums), colouring matters and wax. Organic acids present in the cane juice are glycollic acid, malic acid, succinic acid and a small quantity offanoic acid, butyric acid and aconitic acid. These vary from 0.5 to 1.0 per cent of cane by weight. The inorganic compounds are made up of phosphates, chlorides, sulphates, nitrates and silicates, sodium, potassium, calcium, magnesium, aluminium and iron chiefly. These are present to the extent of 0.2 to 0.6 per cent. The 'Nitrogenous bodies' are albuminoids, amides, amino acids, ammonia and xanthine bases. These are present to the extent of 0.5 to 1-0 per cent. Fibre is the insoluble substance in cane. Dry fibre contains about 18 per cent lignin, 15 per cent water soluble substances, 45 per cent cellulose and the remainder hemicellulose. The colouring matters viz. (i) Chlorophyll, (ii) Anthocyanin, (iii) Saccharetin and (iv)Tannins are present in sugarcane juice.
Technology Available :
Post Harvest Technology Centre, TNAU, Coimbatore.