| Abstract | Pšenična trava mladi su izdanci pšenice (Triticum aestivum L.) koji se u ljudskoj i životinjskoj prehrani najčešće konzumiraju kao sok, prah te tablete. Sadrži preko 100 elemenata koji su neophodni čovjeku kao što su esencijalne masne kiseline, enzimi i antioksidansi. Izvor je klorofila, vitamina (A, B, B17, C, E, F i K), minerala (željezo, kalij, kalcij i magnezij) te za razliku od zrna pšenice ne sadrži gluten. Zbog svoje nutritivne vrijednosti sok pšenične trave postao je najpopularniji sok mladice na svijetu. Cilj ovog istraživanja bio je utvrditi razlike u sadržaju ukupnih klorofila, karotenoida, fenola i vitamina C u soku i biljnom ostatku koji je ostao nakon cijeđenja soka te razlike između deset sorti pšenične trave. U prosijeku za sva provedena ispitivanja utvrđeno je kako biljni ostatak sadrži više ukupnih klorofila, karotenoida i vitamina C u odnosu na sok, ali je u soku utvrđen veći sadržaj fenola s pragom značajnosti od 95 % te 99 %. Također je utvrđena značajna razlika u sadržaju ukupnih klorofila, karotenoida, fenola i vitamina C kod deset sorti pšenične trave s pragom značajnosti od 95 %. Najbolje rezultate pokazale su sorte Ružica u soku te Divana u biljnom ostatku, a najlošije rezultate imale su sorte Felix u soku te Ludwig u biljnom ostatku. Prema rezultatima provedenog istraživanja može se zaključiti kako bi najbolje bilo za kućnu upotrebu konzumirati cjelovite svježe listove pšenične trave, sorti Ružica i Divana, kako bi se najbolje iskoristio potencijal koji ova nutritivno vrijedna biljka ima. |
| Abstract (english) | Wheatgrass are young shoots of wheat (Triticum aestivum L.) that are most often consumed in human and animal nutrition as juice, powder and tablets. It contains over 100 elements that are essential to human such as essential fatty acids, enzymes and antioxidants. It is a source of chlorophyll, vitamins (A, B, B17, C, E, F and K), minerals (iron, potassium, calcium and magnesium) and unlike wheat grain it does not contain gluten. Due to its nutritional value, wheatgrass juice has become the most popular shoot juice in the world. The aim of this study was to determine the differences in the content of total chlorophyll, carotenoids, phenols and vitamin C in the juice and plant residue left after squeezing the juice and the differences between the ten varieties of wheat grass. On average, for all tests performed, the plant residue was found to contain more total chlorophyll, carotenoids and vitamin C than the juice, but the juice contained a higher phenol content with a significance threshold of 95 % and 99 %. Also, a significant difference in the content of total chlorophyll, carotenoids, phenols and vitamin C was found in ten different varieties of wheat grass with a significance threshold of 95 %. The varieties Ruzica in juice and Divana in plant residue showed the best results in all tests, and the varieties Felix in juice and Ludwig in plant residue had the worst results. According to the results of the research, it can be concluded that it would be best to consume whole fresh leaves of wheat grass, varieties Ruzica and Divana for home use, in order to best use the potential that this nutritionally valuable plant has. |
