According to previous studies conducted by Ucuncu et al. [11],
temperature of 110 C, 40 min, 4% phosphoric acid and 1:10 solid/
liquid ratio (w/v) were determined as optimum hydrolysis conditions
of apple pomace. Hydrolysates were filtered, pH was adjusted
to 5.0, using 6N NaOH and sterilized at 121 C for 15 min.