SRS8528217 SAMN18396004 EB003p 1154581 food fermentation metagenome crude sourdough after 48 h fermentation bioproject 715367 isolation_source crude sourdough collection_date 2018 geo_loc_name not collected lat_lon not collected rel_to_oxygen aerobe samp_collect_device spatule samp_mat_process stomacher samp_size 25 gr source_material_id fermented dough BioSampleModel Metagenome or environmental