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Miscellaneous Foods - Medical Science

Q1:

Ropiness in bread is caused by

A Bacillus subtilis

B A. niger

C R. nigricans

D P. expansum

ANS:A - Bacillus subtilis

Causes of Ropiness : The chief causative organism is Bacillus subtilis or B. Licheniformis. In ropiness, the hydrolysis of bread flour protein (gluten) takes place by proteinases. Starch is also hydrolysed by amylases, which encourage ropiness.