(57) A process for the manufacture of a sweetener based on milk, in which lactose is hydrolysed
while being transformed to glucose and galactose by means of a strongly acidic cation
exchanger having a cross linking degree of between 5 and 10 % in a parallel flow of
a lactose solution through a fixed bed of the strongly acidic cation exchanger, whereby
the hydrolysis is run to a hydrolysing degree of 40-100 % at a temperature of 80-150°C
or preferably 90-120°C and with a flow cycle speed of between 2 and 0,5 bed volumes
per hour corresponding a cycle speed of transforming lactose to glucose and galactose
of between 0,5 and 2 hours, whereupon the glucose-galactose product thereby obtained
is cooled to a temperature of 10-20°C and is withdrawn for direct use, for being temporarily
stored or for being further treated. The dry matter content of the treated lactose
is kept at 40 to at least 80% or preferably 50 to 60%. The invention also relates
to a sweetener manufactured according to the process.
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