Beta Fructosidase is an enzyme derived from baker's yeast. The CAS number of this enzyme is 9040-17-1, and its molecular weight is approximately 200 kDa.
 
It is commonly used in the food industry to break down fructose and reduce crystallization in products such as fruit juices and syrups. Beta Fructosidase has also been studied for its potential use in the treatment of cancer and other diseases.
 
A PubMed article discussing the enzyme's use in the food industry can be found here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5805994/.