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Which of the following yields citric acid?
1. Penicillium citrinum
2. Aspergillus niger
3. Saccharomyces
4. Azospirillium
Other Reason
For retting of Jute, the fermenting microbe used is:
1. Methophilic bacteria
2. Helicobacter pylori
3. Butyric acid bacteria
4. Streptococcus lactin
Other Reason

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