Kefirden izole Lentilactobacillius kefiri ve ekşi hamurdan izole Lentilactobacillius plantarum starter kültürleri ile ekşi mayanın ekmek üretiminde kullanılması Using Lentilactobacillus kefiri isolated from kefir and Lactiplantibacillus plantarum isolated from sourdough in the production of bread with sour yeast as starter culture