Primjena biopolimernih mikrokapsula u hidroponskom uzgoju salate

master's thesis

• Title (english): Application of biopolymeric microcapsules in hydroponic lettuce growing
• Author: Katarina Mamić
• Mentor: Marko Vinceković (mentor)
• Committee member: Marko Vinceković (predsjednik povjerenstva)
• Committee member: Božidar Benko (član povjerenstva)
• Committee member: Ivanka Žutić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Chemistry); Zagreb
• Defense date and country: 2020-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Salata (Lactuca sativa L.) sadrži bioaktivne spojeve koji su korisni za zdravlje ljudi, a povećanje njihove koncentracije postalo je cilj uzgojnih programa. Biopolimerne mikročestice jedan su od načina kako poboljšati morfološka (visina i promjer, biomasa i tržna masa rozete) i nutritivna svojstva (udio suhe tvari, ukupni klorofil, ukupni polifenoli i flavonoidi i antioksidacijska aktivnost) salate. U ovom istraživanju postavljen je jednofaktorijalni pokus sa salatom sorte 'Melina' u tipu batavie. Prilikom sadnje presadnica, u tlo je inkorporirano osam vrsta biopolimernih mikročestica sastavljenih od nosača alginata s ili bez dodatnog kitozan omotača, s aktivnim tvarima: Ca2+, Cu2+, Ca2+/T. viride, Cu2+/T. viride. Primijenjena je i fiziološka otopina T. viride spora dok je kontrolna varijanta bila bez aplikacije mikročestica. Aplikacija mikročestica nije rezultirala značajnim razlikama u morfološkim svojstvima salate. Primjena biopolimernih mikrosfera s aktivnom tvari Ca2+ dovela je do značajnog povećanja ukupnog klorofila (1349,7 μg⋅g-1·s.tv.). Primjena mikokapsula s Ca2+ i T. viride rezultirala je značajnim povećanjem ukupnih polifenola (4,2 mg EGK⋅g-1 s.tv.) i flavonoida (9,7 mg EK⋅g-1 s.tv.) te antioksidacijske aktivnosti (22,1 μmol ET g-1 s.tv.) u odnosu na kontrolnu varijantu.

Abstract (english)

Lettuce (Lactuca sativa L) contains several compounds that are useful in human health. Increasing concentrations of key healing compounds have become the goal of breeding programs. Biopolymeric microcapsules are one of the ways that we can improve morphologic characteristics (height, diameter, biomass, market weight rosette) and nutritive characteristics (dry matter content, total chlorophyll, total polyphenols and flavonoids, and antioxidant activity) of lettuce. In this research, we have set up one factorial experiment with the salad of Melina variety, which we include in Batavia. When planting seedlings, eight types of biopolymer microcapsules made of alginate carrier with or without chitosan wrap were incorporated into the soil with active ingredients Ca2+, Cu2+, Ca2+/T. viride, Cu2+/T. viride. The physiological solution of T. viride spore was also applied while control was without applications of the microparticle. There was no significant difference in the morphological properties of the lettuce using the microparticles. The application of a biopolymer microsphere with the Ca2+ activator resulted in a significant increase in total chlorophyll (1349,7 μg⋅g-1). Application of microcapsules loaded with Ca2+ and T. viride resulted in a significant increase in total polyphenols (4,2 mg EGK⋅g-1) and flavonoids (9,7 mg EK⋅g-1) antioxidant activity (22,1 μmol ET g-1 s.tv.) in comparison to the control variant.

• Keywords: Lactuca sativa L.; biopolimerne mikročestice; morfološka svojstva; prinos; nutritivna svojstva; antioksidacijska aktivnost
• Keywords (english): Lactuca sativa L.; biopolymeric microcapsules; morphologic characteristic; yield; nutritive characteristic; antioxidant activity
• Language: croatian
• URN:NBN: urn:nbn:hr:204:407170
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-05-18 09:15:31