Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SUMI Hiroyuki and ASANO Tomokazu,"Production of Nattokinase, Vitamin K2 and Amino Acids by Barley Fermented with Bacillus Natto.",Journal of Home Economics of Japan,0913-5227,The Japan Society of Home Economics,2001,52,10,937-942,https://cir.nii.ac.jp/crid/1390001206334777600,https://doi.org/10.11428/jhej1987.52.937