The bioconverted pulps were joined and filtered through
a 150 mm filter to separate the liquid and solid fractions. The pear
liquid fraction (PLF), representing 60% of the total volume of pear
pulp, has been characterized to be used as co-substrate in the AD
trial. In order to achieve similar volatile solids amount for both substrates,
PLF was diluted with water in the ratio 1:4.