CAJ | 학술논문

以广东地区高盐稀态酱油成曲中优良的米曲霉菌株为出发菌，经紫外诱变选育得到了一株种曲单孢子，中性蛋白酶活力比出发菌株提高了108％，平均种曲酶活力为9426．43 U／g 干基，孢子发芽率达91．58％，成曲中性蛋白酶活力为209 U／g 干基，碱性蛋白酶活力为159 U／g 干基，酸性蛋白酶活力为101 U／g干基，纤维素酶活力为5．3 U／g干基，黄曲霉毒素B1检出量符合国家标准规定，拥有良好遗传稳定性的米曲霉突变菌株。
이엄동지구고염희태장유성곡중우량적미곡매균주위출발균，경자외유변선육득도료일주충곡단포자，중성단백매활력비출발균주제고료108％，평균충곡매활력위9426．43 U／g 간기，포자발아솔체91．58％，성곡중성단백매활력위209 U／g 간기，감성단백매활력위159 U／g 간기，산성단백매활력위101 U／g간기，섬유소매활력위5．3 U／g간기，황곡매독소B1검출량부합국가표준규정，옹유량호유전은정성적미곡매돌변균주。
Take an excellent Aspergillus oryzae selected from the koji of Guangdong soy sauce with process of high-salt-diluted-state fermentation as original strain,which is induced mutation by ultraviolet.The result shows that the neutral protease activity of the mutant is 108% higher than that of the original strain;the average enzyme activity of koji reaches 9426.43 U/g (dm),the spore germination rate reaches 91.58%;the soybean koji neutral protease activity reaches 209 U/g (dm),the alkaline protease activity reaches 159 U/g (dm),the acid protease activity reaches 101 U/g (dm),the cellulase activity reaches 5 .3 U/g (dm).The detectable amount of Aflatoxin B1 complies with the requirements of the national standard,and it has good genetic stability.