| Abstract | Otpad hrane postao je značajan ekološki problem, a s povećanjem ljudske populacije, stanje postaje još ozbiljnije. Škole su među velikim proizvođačima otpada hrane, a osim štetnog učinka na okoliš, problem je što djeca ne dosegnu preporuke za energijski i nutritivni unos. U ovome istraživanju uspoređen je otpad hrane nakon ručka između dviju prigradskih i dviju gradskih osnovnih škola. Otpad hrane je prikupljen tijekom 5 dana kroz dvije sezone. Sva nepojedena hrana s 3508 tanjura prikupljena je metodom agregiranog selektivnog prikupljanja otpada hrane s tanjura. Pokazalo se da djeca u najvećem udjelu na tanjuru ostave nepojedeno povrće (15,7% gradske škole i 41,6% prigradske škole) i meso (12,7% gradske škole i 40% prigradske škole). Nadalje, generalno se najviše otpada stvara od povrća i škrobne hrane (preko 70%) s obzirom na veću količinu i učestalost serviranja ovih dviju kategorija hrane. U prigradskim školama utvrđena je statistički značajno veća prosječna masa otpada po učeniku od škrobne hrane (p=0,026), povrća (p=0,019) i mesa (p<0,001) u odnosu na gradske škole što je uzrokovano povećanom masom serviranja u tim školama. Utvrđena je pozitivna korelacija između mase serviranja i otpada hrane (r=0,861, p<0,001 za prigradske škole i r=0,875, p<0,001 za gradske škole), stoga bi ubuduće bilo poželjno definirati masu serviranja koja bi djeci osigurala adekvatnu energijsku i nutritivnu vrijednost obroka ali ujedno i smanjila količinu otpada. |
| Abstract (english) | Food waste became significant ecological problem and it becomes more serious with growing human population number. Schools are among great producers of food waste, and besides harmful impact on enviroment, there is a problem with children that they don't reach daily energy and nutritional reccomendations. In this research, the difference in quantity of school lunch food waste was examined between two urban and two suburban elementary schools. Food waste was collected during five days in two seasons. All food that was not consumed from 3508 plates was collected by aggregate selective plate waste method. It was evidenced that children leave vegetables (15.7% urban and 41.6% suburban schools) and meat (12.7% urban and 40% suburban schools) in the largest share on plate non-consumed. Further, generally the most of food waste comes from starchy food and vegetables (more than 70%) because of bigger portion size and more frequent serving of these food categories. It has been found significantly bigger average plate waste amount of starchy food (p=0.026), vegetables (p=0.019) and meat (p<0.001) among suburban schools which is caused by bigger portion sizes in these schools. Positive correlation between portion size and food waste was found (r=0.861, p<0.001 for suburban schools and r=0.875, p<0.001 for urban schools), so in the future, it would be desirable to define amount of serving size which should provide children adequate energy and nutritional value of a meal and make less food waste at the same time. |
