Hello,

You are studying in bvoc means bachalor of vocational studies. So you are completed your 2nd year in food technology. Now you want to take in between microbiology and biochemistry any one subject.

Microbiology is the main part of biology, you have to study about the bacteria, virus, fungus in this subject. And the biochemistry is mainly about the  cell biology, ecology etc.

But you are in food technology so I'll prefer you to choose the microbiology. Because every food department has a special zone for microbiology. Because they are check the purity about foods. So microbiology is connected to your previous subject.

All the best.