A common concern for beer brewers making sour beers is contamination from Acetobacter. This organism converts ethanol to acetic acid and gives the finished product an undesirable vinegar flavor. Which of the following media would serve as a good enrichment medium to detect the presence of Acetobacter in a brewery environment?

a. Carbon dioxide, yeast extract, trace elements
b. Cellulose, phosphate buffer, magnesium sulfate, calcium chloride, trace elements
c. Ethanol, ammonium chloride, phosphate buffer, magnesium sulfate, calcium chloride, trace elements
d. Glucose, ammonium chloride, phosphate buffer, magnesium sulfate, calcium chloride, trace elements

Option C.

Explanation:

Acetobacter is an acetic acid bacteria that convert ethanol to acetic acid in the presence of oxygen. This bacteria oxidize lactate and acetate into carbon dioxide and water. Acetic acid bacteria are found in media that have high concentration of carbohydrates like fruits and ethanol. Acetobacters are found in fermented foods. Ethanol, ammonium chloride, magnesium sulfate, calcium chloride, phosphate buffer and trace elements are good enrichment media for acetobacters growth because of high concentration of sugar.

ysosomes are membrane-bound vesicles that contain digestive enzymes, such as glycosidases, proteases and sulfatases. lysosomal enzymes are synthesized in the endoplasmic reticulum (er), are transported to the golgi apparatus, and are tagged for lysosomes by the addition of mannose-6-phosphate label.

explanation:

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals