What concentration, 1%, 2%, 3%, 4%, or 5%, of agar gel beads is best for lactase immobilisation using gel entrapment for the breakdown of lactose in milk (Bos Taurus) into glucose and galactose, estimated from the seconds taken ( 0.01) for sulfuric acid and potassium permanganate to lose colour at 37℃ and pH 7 across different times in seconds ( 0.01) each concentration solution stayed in the water bath (60, 120, 180, 240, 300)?