| 摘要 |
PURPOSE: A Bacillus amyloliquefaciens BY-1 strain with excellent menaquinone synthesis ability is provided to contain richer vitamin K2 content and to prevent and treat osteroporosis. CONSTITUTION: A Bacillus amyloliquefaciens BY-1 (KCTC11712BP) has excellent menaquinone synthesis ability. The strain has gyrB gene of sequence number 1. A composition for Cheonggukjang(fermented soybean paste) fermentation contains the strain, culture of the strain, or concentrate liquid of the culture. A method for preparing Chenggukjang comprises: a step of steaming soybeans, black beans, or crushed soybean; a step of inoculating the composition to the soybeans, black beans, or crushed soybean; and a step of fermenting at 41-45°C. A food for preventing or treating osteoporosis contains Chenggukjang. |
