The cooked rice starch from Heilongjiang province was debranched with pullulanase followed by cooling and storing;thus a kind of starch containing slowly digestible starch over 50% was prepared.

以黑龙江大米淀粉为,化时采用普鲁兰酶进脱支处理,并经冷却贮缓慢消化淀粉的含量超过50%。