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    Construction of a Food-Grade Expression Vector Based on pMG36e by Using an α-Galactosidase Gene as a Selectable Marker by Xin-xi GU, Jian-xin TAN, Hong-tao TIAN, Yu-lan ZHANG, Yun-bo LUO, Xing-hua GUO

    Published 2014-08-01

    Construction of a food-grade expression vector for application to lactic acid bacteria (LAB) is of importance for dairy fermentation system. An α-galactosidase (aga) gene encoding an enzyme degrading melibiose was amplified by PCR from the plasmid pRAF800 of Lactococcus lactis NZ9000. The aga gene w...

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