Optimization and characterization of immobilized E. coli for engineered thermostable xylanase excretion and cell viability oleh Nur Atiqah Lyana Nor Ashikin, Siti Fatimah Zaharah Mohd Fuzi, Shoriya Aruni Abdul Manaf, Nor Hasmaliana Abdul Manas, Shalyda Md Shaarani@ Md Nawi, Rosli Md Illias