MOESM1 of A food-grade expression system for d-psicose 3-epimerase production in Bacillus subtilis using an alanine racemase-encoding selection marker ChenJingqi JinZhaoxia GaiYuanming SunJibin ZhangDawei 2017 Additional file 1: Figure S1. The isolation of B. subtilis 1A751D1. Table S1. Strains and plasmids used in this study. Table S2. Primers used in this study.