Sci. rep. (Nat. Publ. Group) Sci. rep. (Nat. Publ. Group) SCOBY-based, innovative, and sustainable production of gallic acid from sucrose towards multipurpose applications Medina Sonia Medrano-Padial Concepción Guillén Silvia Pérez-Través Laura Pérez-Novas Irene Periago Paula García-Viguera Cristina Domínguez-Perles Raúl 2025 research-article