Abstract

Carob pods contain about 200–500 g/kg of total sugars, a higher content of sugar than is present in beet or cane, which is below 200 g/kg. In the present paper a sugar syrup (concentrate solution of several sugars) from carob pods has been obtained with a concentration of sugars near 580 g/kg, 62° Brix and 93% of purity. Extraction and purification techniques were performed. From the results of the extraction researches it can be concluded that a 10 column system connected in series is the most advantageous for efficiency and automation of the sugar extraction reaching a yield of at least 90%. In the purification technique a discontinuous treatment followed by purification in several types of columns connected in series have been studied in order to obtain a transparent and colourless extract.

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