Study on the health drink of Chlorella

With Chlorella powder as raw material,the algae polysaccharide was extracted by the method of ultrasonic assisted,then papain and neutral protease were used to hydrolyze alga protein. A kind of health drink was manufactured by adding right amount honey,sugar and citric acid into the filtrate. The optimal extraction condition by orthogonal test was as follows: solid-liquid ratio of 1 ∶ 15( g ∶ m L),p H7.0,extraction temperature of60℃,extraction time 30 min,under which condition,extraction yield of Chlorella polysaccharide was 18.94 mg/g.The optimal condition of hydrolyzing alga protein was as follows: substrate concentration of 100 g/L,the amount of composite enzyme of 12000 U/g,p H6.5,temperature of 55℃. Under which the degree of hydrolysis of Chlorella protein was up to 27.83%.The nutritional health drink was obtained with rich nutrition,unique flavor.