Word for describing a predominant orientation for an academic degree

Question

When faced with the task of translating academic documents, I often encounter difficulties with translating the dominant of a field of study. Let me take an example.

Your studies were about cooking in general. In the last year, you specialized in cooking pastas. At the end of the last year, on your diploma, you'll get :
Bachelor in cooking, _____ (specialty ? dominant ? mention ?) pastas.

I want to express the fact that you know how to cook, however your knowledge of pasta is predominant over the general knowledge you have acquired. I have put some words I have thought of, but I am uncertain if they fit the situation I described.

If needed, here are a few more similar examples where the word I look for is missing :

Master of Art, ______ Photography

B.Sc. Biology, ______ Stem cells and bioethics

Answer 1

Many universities use the term concentration - see definition 1b:

an academic major or area of focus within a major

It may not always appear in the actual degree paperwork, so it won't be capitalized in full sentences.

I have a BS in Physics, with a concentration in electro-optics.