Agusta A, Herawati MM. The Effect of Bacillus subtilis Bacteria Concentration on Production and Characterization of Pektinase Enzymes from Pineapple Peel Waste (Ananas comosus L. Merr). JTEP-L [Internet]. 2022 Mar. 31 [cited 2026 Jun. 29];11(1):60-9. Available from: https://jtep.fp.unila.ac.id/index.php/JTP/article/view/5533