I think there is a bit confusion about the term emulating USB-ZIP or USB-FDD. 1) For me emulating USB-ZIP means (any device, such as this USB-pendrive) claims to be (real USB-ZIP). Or emulating USB-FDD means (any device, such as this USB-pendrive) claims to be (real USB-FDD). I suspect this real emulating can only be done on hardware / firmware level and is not possible for normal end users. So either you buy a device with this feature or not...
Sourdough is dough which has microorganisms (for example lactobacillus or yeast) from sourdough or sourdough starters, which are active or can be reactivited. With the addition of grain products and water, they are capable of continuous acid generation.
Sourdough Bread Fermentation. Sourdough Bread Fermentation. Process. Sourdough bread is made by a process of fermentation using naturally occurring lactobacilli and yeast. Lactic acid fermentation and alcoholic fermentation occur in sourdough bread.The pyruvate, produced for glycolysis, are the substrates for lactic acid and alcoholic fermentation.ourdough bread has a sour taste because of the lactic acid produced by the lactobacilli. Substrates and Products. Substrates: 2 pyruvate. Products: carbon dioxide for bread leavening, lactic acid which gives the bread its sour taste, and ethanol which the bacteria use as food.