Documents Savoirs Quantitative transcript analysis of the inducible expression system pSIP: comparison of the overexpression of Lactobacillusspp. β-galactosidases in Lactobacillus plantarum Nguyen Tien-Thanh, Nguyen Thu-Ha, Maischberger Thomas, Schmelzer Philipp, Mathiesen Geir, Eijsink, Haltrich Dietmar, Peter Bauer