Developing a DNA Marker Approach for the Sustainable Production of D-Tagatose Joko Pebrianto Trinugroho, Alam Ahmad Hidayat, Rudi Nirwantono and Bens Pardamean E3S Web Conf., 426 (2023) 01027 Published online: 15 September 2023 DOI: 10.1051/e3sconf/202342601027