@⇒ Vinegar and citric acid ⇒ Biotechnology ⇒ Medical Science Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	Which of the following microorganism is used for the production of citric acid?
A.	Lactobacillus bulgaricus [Wrong Answer]
B.	Saccharomyces cerevisiae [Wrong Answer]
C.	Aspergillus niger [Correct Answer]
D.	Streptococcus lactis [Wrong Answer]
View Answer 3 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q2.	Which substrate is used in the fermentation of citric acid?
A.	Beet molasses [Wrong Answer]
B.	Sucrose [Wrong Answer]
C.	Starch hydrolysate [Wrong Answer]
D.	All of these [Correct Answer]
View Answer 4 -2 Explanation:- Answer : D Discuss it below : Click here for more comments


Q3.	Ethanol is oxidized to acetic acid aerobically using
A.	Acetobacter [Wrong Answer]
B.	Gluconobacter [Wrong Answer]
C.	both (a) and (b) [Correct Answer]
D.	Lactobacillus [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : C Discuss it below : Click here for more comments


Q4.	Sugar content of the fermentation medium for citric acid is maintained at
A.	10-15% [Wrong Answer]
B.	15-20% [Wrong Answer]
C.	20-25 % [Correct Answer]
D.	25-30 % [Wrong Answer]
View Answer 3 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q5.	Alegar is a type of vinegar produced from
A.	fruit juices [Wrong Answer]
B.	malted grain [Wrong Answer]
C.	ethanol [Wrong Answer]
D.	ale [Correct Answer]
View Answer 3 -1 Explanation:- Answer : D Discuss it below : Click here for more comments

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