This thesis examines the issue of rennets. In this work the basic structure of milk is described, then characteristics and rennets division and it´s principle during milk coagulation. Furthermore I have tried to describe factors, which influence thein efficiency and principles during using rennets. This work also includes working proces of milk curdling and dose calculation. In practical part the aktivity of rennet was observed during different storage conditions, influence on yield and quality of curd after 2 minutes dripping. The strength of rennet was fixed, the dose of the rennet needed to curd 1000 l of milk. For the setting was used recombinant milk powder according to IDF requirements. The samples of rennets were tried on the semi-skimmed milk and the whole milk. The four months storage in the fridge has dropped the activity of rennet down 19 % and during laboratory temperature down 27 %. To cut down the activity of rennets has increased the dose of rennet needed for curdling 1000 l of milk and the price of rennet. The most stability was rennet Laktosin, the most degradation rennet Laktochym.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:427892 |
| Date | January 2019 |
| Creators | Lysek, Adam |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.0022 seconds