Učinak temperature sušenja na kvalitativna svojstva i boju cvatova bazge

master's thesis

• Title (english): Effect of drying temperature on the qualitative properties and color of elder flowers
• Author: Petra Kompes
• Mentor: Ana Matin (mentor)
• Committee member: Ana Matin (predsjednik povjerenstva)
• Committee member: Tajana Krička (član povjerenstva)
• Committee member: Goran Fruk (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2019-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Bazgu (Sambucus nigra, L.) najčešće nalazimo kao drvenastu, višegodišnju biljnu vrstu. Raste kao grm ili malo stablo. Možemo je naći pod raznim imenima poput zova, bazgovina, abdovina i obična bazga. Pripada rodu Sambucus gdje se nalazi 40 vrsta, od kojih se samo dvije koriste u komercijalne svrhe. U Hrvatskoj su najznačajnije tri vrste od kojih je jedna opisana u diplomskom radu. Cvate od svibnja do lipnja, a mirisni cvjetovi su skupljeni u paštitaste cvatove blijedožute boje. Kasnije se cvatovi razviju u purpurne bobice. Od davnina su poznata ljekovita svojstva bazge što je potvrđeno brojnim istraživanjima. Osim što ima ulogu u ekološkoj i organskoj proizvodnji posjeduje i ukrasna svojstva. Samonikla biljna vrsta, voli propusno i vlažno tlo, a često su je, pogrešno, smatrali korovom. Svi dijelovi bazge su ljekoviti, a najčešće se koriste cvatovi i bobice. Poznato je da se od nje izrađuju mnoga alkoholna pića kao likeri, vina, sokovi, te se može koristiti u kulinarstvu.
Za potrebe ovog istraživanja korišteni su cvatovi bazge sušene na četiri različite temperature 40°C, 50°C, 60°C i 70°C te prirodno na zraku. Također je utvrđena energetska vrijednost listova i stabljike kao potencijalna sirovina za proizvodnju plina, te je utvrđen kemijski sastav.

Abstract (english)

Elder (Sambucus nigra, L.) is most commonly found as a woody, perennial plant species. Growing as bush or small tree. It can be found under various names such as zova, bazgovina, abdovin. It belongs to the gender Sambucus where there is 40 species, only two are used for commercial purposes. Three species are the most significant in Croatia, one is described in the master's thesis. It blooms from May to June, and the fragrant flowers are clustered into pale yellowish-colored flowers. Later the inflorescences develop into purple berries. The healing properties of elder have been known since ancient times, which has been confirmed by numerous studies. In addition to its role in ecological and organic production, it also has decorative properties. A wild plant species, it loves permeable and moist soil and it was often considered a weed by mistake. All parts of the Elder are curative and the most commonly used are inflorescences and berries. It is known that many alcoholic beverages are made from Elder such as liqueurs, wines, juices and can be used in cooking.
For the purposes of this study, the Elder blossoms dried at four different temperatures of 40°C, 50°C, 60°C and 70°C, and room temperature, were used. The energy value of leaves and stems was also determined as a potential raw material for gas production, and the chemical composition was determined.

• Keywords: bazga; cvatovi; sušenje; temperatura
• Keywords (english): Elder; inflorescence; drying; temperature
• Language: croatian
• URN:NBN: urn:nbn:hr:204:430267
• 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: 2019-10-30 09:18:28