Disclosed is a novel lactobacillus that is classified as a Lactobacillus plantarum and that has an excellent fermentative ability achieving high viable bacteria counts even if various vegetable juices and fruit juices are used as fermentation substrates. Said lactobacillus classified as a Lactobacillus plantarum is characterized by the achieved viable bacteria count being at least 108 CFU/ml both when 100% grape juice and when 100% orange juice is used as the fermentation substrate.Se describe una nueva bacteria de ácido láctico perteneciente a Lactobadilus plantarum, la cual tiene una excelente habilidad fermentativa produciendo conteos celulares alcanzables altos incluso si se usan varios jugos de verdura o fruta como sustratos fermentativos la bacteria de ácido láctico perteneciente a Lactobadilus plantarum está caracterizada porque sus conteos celulares viables alcanzables son de 108 CFU/ml o más en ambos casos, cuando se usa ya sea jugo de uva o de naranja al 100% como sustrato fermentativo.