BVoc in food processing involves many aspects of it - from acquiring the starting materials to manufacturing and marketing of food items.
One unique trait of this degree is that it offers multiple exit options.
After completion of 1 year  Diploma
After completion of 2 years  Advanced Diploma
After completing the entire course  Bachelors Degree
After completing this degree, there are multiple job opportunities in MNCs like Nestle, Amul, etc. Professionals are needed in quality control of food products. It is a really essential field where demand for professionals won't diminish.

BSc in Food tech involves study of ingredients, proportion, preservation and packaging of food products.It is a three-year program. One should opt for BSc here only if interested in research on food products and related topics. One can become an academician or a scientist after pursuing PhD.
The scope depends on the type of job you want to go for - as a quality control professional or as a researcher.
Hope it helps!