However, [heat] does not 'destroy' the protein, it simply causes it to unfold. The amino acids remain intact and are still available.. I think the confusion of where heat can cause a problem is with enzymes.
TOEFL stands for Test Of English as a Foreign Language (Educational Testing Service) Suggest new definition. This definition appears very frequently and is found in the following Acronym Finder categories: Organizations, NGOs, schools, universities, etc.
The highest TOEFL score that you will need is probably about 630. The lowest TOEFL score that you will need is probably about 450. In general, better universities require higher TOEFL scores and worse schools require lower TOEFL scores. Some schools require no TOEFL score, but, be careful!