Evaluating bio-physicochemical properties of raw powder prepared from whole larvae containing liquid silk of the domestic silkworm oleh Shusuke Hashimoto, Maki Yamazaki, Hiroshi Uehara, Hiroshi Uehara, Shinya Yamazaki, Masakazu Kobayashi, Takeshi Yokoyama, Kenjiro Yazawa, Kunihiro Shiomi