For heat-treated bran recombining (HTBR) process, the bran
fraction without sealing was heated in an autoclave at 121 C for
5 min. After freeze-drying and pulverizing by an FW-100 high
speed grinder (Beijing Zhongxingweiye Instrument Co., Ltd., Beijing,
CN), the bran fraction was sifted and blended with white flour
to obtain whole wheat flour as shown in above.