Zastupljenost A1 i A2 tipa beta kazeina kod različitih pasmina goveda

master's thesis

• Title (english): Representation of the beta-casein A1 and A2 type in different cattle breeds
• Author: Lucija Bukal
• Mentor: Bruna Tariba (mentor)
• Committee member: Bruna Tariba (predsjednik povjerenstva)
• Committee member: Dragica Šalamon (član povjerenstva)
• Committee member: Krešimir Salajpal (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Animal Science); Zagreb
• Defense date and country: 2021-01-21, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Mlijeko oduvijek čini veliki dio ljudske prehrane zbog svojih nutritivnih karakteristika. Mlijeko je neizostavni dio prehrane svih dobnih skupina, a osobito djece. Zadnjih 10-tak godina detektirali su se i neki negativni utjecaji na zdravlje pa su se znanstvena istraživanja usmjerila na sastav mlijeka, odnosno na sve što utječe na njega. Kravlje mlijeko sadrži oko 80% proteina kazeina i oko 20% sirutke. Među kazeinima na β-kazein otpada oko 30%. Najčešći tipovi kazeina, A1 i A2, razlikuju se samo u jednoj aminokiselini, koja utječe na svojstva mlijeka I za koje se pokazalo da utječe na zdravlje ljudi. Detaljno su obrađena dosadašnja istraživanja o zastupljenosti A1 i A2 kazeina kod različitih pasmina goveda u svijetu I u RH. Istraživanja su pokazala da veliki postotak mliječnih krava u Hrvatskoj ima A2A2 kazein što daje nove mogućnosti kreiranja A2 stada te bolju poziciju u pristupu tržištu kroz stvaranje proizvoda s dodanom vrijednosti naših proizvođača.

Abstract (english)

Milk has always made a large part of the human diet because of its nutritional characteristics. Moreover is an essential part of the diet of all age groups, especially children. In the last 10 years or so, some negative effects on health have been detected, so scientific research has focused on the composition of milk, i.e. everything that affects it. Cow's milk contains about 80% casein protein and about 20% whey. Among caseins, β-casein takes about 30%. The most common types of casein, A1 and A2, differ in only one amino acid, which affects the properties of milk and has been shown to affect human health. Previous research on the presence of A1 and A2 casein in different breeds of cattle in the world and in the Republic of Croatia has been discussed in detail. Research has shown that a large percentage of dairy cows in Croatia have A2A2 casein, which opens up new opportunities to create A2 herds and a better position in market access through the creation of value-added products from our producers.

• Keywords: govedo; vime; proteini mlijeka; beta kazeini
• Keywords (english): cattle; udder; milk proteins; beta caseins
• Language: croatian
• URN:NBN: urn:nbn:hr:204:961095
• Study programme: Title: Animal Genetics and Breeding; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka genetike i oplemenjivanja životinja (magistar/ magistra inženjer/inženjerka genetike i oplemenjivanja životinja)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to authenticated users
• Created on: 2021-12-06 08:05:00