Primjena modeliranja u praćenju kakvoće prehrane u učeničkim domovima

master's thesis

• Title (english): Application of modelling in the quality monitoring of meals in boarding schools
• Author: Silvia Križanac
• Mentor: Jasenka Gajdoš Kljusurić (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Process Engineering); (Laboratory for Measurement, Regulation and Automatisation); Zagreb
• Defense date and country: 2012-12-18, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

U ovom radu istaknute su statističke metode primijenjene u utvrđivanju sličnosti i različitosti u energetskom i nutritivnom unosu na primjeru učeničkog doma u Hrvatskoj, praćenjem sezonske ponude kao i uspješnost intervencije. Intervencija predstavlja primjenu računala u planiranju tjednih planova prehrane s ciljem usklađenja s preporukama. U analizi podatka korištena je deskriptivna statistika i regresijski modeli. Praćena je nutritivna i energetska ponuda tijekom 14 dana te broj serviranja prema osnovnim skupinama namirnica, za dvije sezone (proljeće/ljeto i jesen/zima). Obzirom na rezultate gdje je raspon energije dnevnih ponuda varirao od 2122 do 3589 kcal/dan, te udjela masti koji su odstupali od preporuka zbog veće zastupljenosti masti bogatih zasićenim masnim kiselinama, primijenjeno je računalno planiranje prehrane (intervencija) kako bi se ponuda uskladila s preporukama i smanjilo velike oscilacije u energetskoj ponudi. Također je izabran jedan mineral (željezo) kako bi se pratio i njegov sadržaj u obrocima prije i nakon intervencije. Upotreba računalne aplikacije je rezultirala primjerenom energetskom i nutritivnom ponudom koja je usklađena s preporukama te s većom zastupljenošću namirnica iz skupina voće, povrće te mlijeko i mliječni proizvodi. Modeli su pokazali kako je za izvor željeza bolja kombinacija namirnica iz različitih skupina, posebno žitarice u kombinaciji s povrćem, voćem ili mesom nego unosom samo mesa i zamjena.

Abstract (english)

This work focuses on the statistical methods used in determining the similarities and differences in the energy and nutrient intake of boarding schools in Croatia, following the seasonal menus as well as the success of the intervention. The intervention implies the application of computers in the weekly diet planning, that are in the accordance with recommendations. Descriptive statistics and regression models were used for the data analysis. Nutritional and energy value for 14 days and the number of servings of basic food groups, for two seasons (spring / summer and fall / winter) was observed. Considering the results where the range of daily energy content varied from 2122 to 3589 kcal / day, as well as the content of fats, that diverged from recommendations because of a large amount of saturated fat - a computer based meal planning was applied (intervention) in order to achieve the menus in accordance with the recommendations and to reduce large swings in the energy content. Additionally, mineral (iron) was chosen in order to follow its contents in the menus before and after the intervention. The use of computer applications has resulted with daily menus with adequate energy and nutrient content that complies with the recommendations and with a higher prevalence of food groups as fruits, vegetables and milk and dairy products. The models showed that the source of iron can be predicted based on the serving of some food groups, but better predictions are gained from different food groups, especially grains, combined with vegetables, fruit or meat intake and not as expected just by meat and meat products.

• Keywords: modeliranje; kakvoća organizirane prehrane; intervencija; željezo
• Keywords (english): modelling; quality of organised nourishment; intervention; iron
• Language: croatian
• URN:NBN: urn:nbn:hr:159:435611
• Study programme: Title: Nutrition; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra nutricionizma (magistar/magistra nutricionizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-05-10 09:04:22