Nutritivni sastav i sadržaj bioaktivnih spojeva ploda i lista planike (Arbutus unedo L.)

master's thesis

• Author: Ivana Pavušek
• Mentor: Jana Šic Žlabur (mentor)
• Committee member: Jana Šic Žlabur (predsjednik povjerenstva)
• Committee member: Sandra Voća (član povjerenstva)
• Committee member: Martina Skendrović Babojelić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2017-04-12, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Glavni cilj ovog diplomskog rada bio je analizirati nutritivni sastav i sadržaj bioaktivnih spojeva u plodovima i listovima planike (Arbutus unedo L.) prikupljenih s tri različite lokacije područja grada Rovinja. U svrhu utvrđivanja nutritivnog sastava provedene su sljedeće analize: sadržaj suhe tvari (%), sadržaj ukupne topljive suhe tvari (%), sadržaj ukupnih kiselina (%), pH-vrijednost, sadržaj vitamina C (mg/100 g svježe tvari), sadržaj ukupnih fenola (mg/GAE/100g svježe tvari), sadržaj ukupnih antocijana (mg/L), sadržaj β-karotena (µg/100 g svježe tvari), sadržaj ukupnih klorofila (mg/g) te antioksidacijski kapacitet (µmolTE L-1).
Sadržaj vitamina C kretao se od 176,92 mg/100 g (lokacija 3) do 207,84 mg/100 g (lokacija 2) kod plodova i od 112,37 mg/100 g (lokacija 1) do 266,37 mg/100 g (lokacija 2) kod listova; sadržaj ukupnih fenola od 461,99 mg/GAE/100 g (lokacija 2) do 764,83 mg/GAE/100 g (lokacija 1) kod plodova i od 1775,31 mg/GAE/100 g (lokacija 3) do 2448,31 mg/GAE/100 g (lokacija 1) kod listova.
Temeljem dobivenih rezultata može se zaključiti da su plod i list planike nutritivno vrijedan izvor bioaktivnih komponenata te da kvaliteta, odnosno nutritivni sastav ploda i lista značajno ovisi o lokaciji uzgoja.

Abstract (english)

The main objective of this thesis was to analyze the nutritional composition and content of bioactive compounds in fruits and leaves (Arbutus unedo L.) collected from three different locations from Rovinj area. Following chemical analysis, in purpose of determining nutritional composition, was conducted: dry matter content (%), soluble dry matter content (%), total acidity content (%), pH-value, vitamin C content (mg/100g), total phenols content (mgGAE/100 g), total anthocyanins content (mg/L), β-carotene content (µg/100 g), total chlorophylls content (mg/g) and antioxidant capacity (µmolTE L-1).
Vitamin C contect ranged from 176,92 mg/100g (third location) to 207,84 mg/100g (second location) at fruits and from 112,37 mg/100g (first location) to 266,37 mg/100g (second location) at leaves; total phenols content from 461,99 mg/GAE/100 g (second location) to 764,83 mg/GAE/100 g (first location) at fruits and from 1775,31 mg/GAE/100 g (third location) to 2448,31 mg/GAE/100 g (first location) at leaves.
Based on the obtained results it can be concluded that the strawberry tree fruit and leaves are valuable source of bioactive compounds and that the quality, or nutritional composition of fruit and leaves significantly depends on the location of breeding.

• Keywords: planika; plod; list; bioaktivni spojevi; antioksidacijski kapacitet
• Keywords (english): Arbutus unedo L.; fruit; leaf; bioactive compounds; antioxidant capacity
• Language: croatian
• URN:NBN: urn:nbn:hr:204:346861
• 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: Access restricted to students and staff of home institution
• Created on: 2017-07-19 06:19:10