1

From a book published by Cambridge University Press:

In a batch operation, all necessary medium components and the inoculum are added at the beginning and not during period of fermentation. Therefore, their concentrations are not controlled but are allowed to vary as the living cells take them up. The products, be they intra- or extracellular, are harvested only at the end of the run. Basic controls for pH, temperature, dissolved oxygen, and foam are applied during the course of batch culture.

Can we use "the" before "period of fermentation"?

This would then refer to "the period of fermentation that you're undertaking (the fermentation you're undertaking)". I'm accustomed to see "the" then there's an "of-phrase" involved. Maybe here it's okay to either use or omit "the"?

4
  • 1
    If I had written this book, I would've used 'the' too. But I'm not sure if it's required at all instances. Maybe the author didn't want to use to many 'the' 's in the sentence? "In a batch operation, all necessary medium components and the inoculum are added at the beginning and not during (the) period of fermentation."
    – Varun Nair
    Aug 29, 2016 at 8:17
  • 5
    The article is needed there before period. It might be dropped before inoculum. Or one could say "...and not during fermentation". Period of is unnecessary because fermentation is a process that takes time. I would also write "during the course of the batch culture" or "during the batch culture".
    – TimR
    Aug 29, 2016 at 10:11
  • Consider not during the fermentation period. Aug 29, 2016 at 10:54
  • It might just be an editing oops - "... added at the beginning and not during fermentation." might be how it started out, and then someone thought that "fermentation" didn't match "the beginning" as a period of time and tried to clarify it.
    – ColleenV
    Aug 30, 2016 at 0:08

1 Answer 1

0

The article is needed there before period. It might be dropped before inoculum. Or one could say "...and not during fermentation". Period of is unnecessary because fermentation is a process that takes time. I would also write "during the course of the batch culture" or "during the batch culture".

(kudos to TRomano)

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .