During sourdough fermentations, starter lactic acid bacteria was reported to reach similar cell densities in the non-conventional grain sourdoughs as in the wheat.

非传统谷物和小麦相比，在发酵过程中产生的乳酸菌的细胞密度相似。

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The cooler weather seems like a good time to make a sourdough starter, flip pancakes, bake bread or roll out biscuits.

NPR: Sourdough: More than a Bread

All sourdough recipes begin with a starter a mixture of flour, water and a little sugar.

NPR: Sourdough: More than a Bread

"Sourdough" even became the nickname for California Klondike miners at the turn of the last century because they carried starter in their backpacks to make bread without having to find a town, let alone yeast.

NPR: Sourdough: More than a Bread