Utjecaj plazmom aktivirane vode na klijavost ječma i rotkvice

master's thesis

• Title (english): Effect of plasma activated water on germination of barley and radish
• Author: Jelena Vojvoda
• Mentor: Tomislava Vukušić (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); (Laboratory for Food Processes Engineering); Zagreb
• Defense date and country: 2019-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Hladna plazma nova je tehnologija koja se primjenjuje u agronomiji za poboljšanje klijanja te rast i razvoj biljki. Primjena hladne plazme odvija se direktnim tretmanima visokonaponskim pražnjenjem u plinu pri čemu se induciraju promjene na površini sjemena ili indirektnim tretmanom tekućeg medija koji se koristi za daljnju primjenu na sjemenu. Cilj ovog istraživanja bio je usporediti utjecaj plazmom aktivirane vode (PAW) na klijavost ječma i rotkvice. PAW voda aktivirana je u hibridnom reaktoru (HVED plazma), plazmom jet i mikrovalnom plazmom. Tretman mikrovalnom plazmom s argonom kao radnim plinom pokazao se najpogodnijim za formiranje PAW vode u svrhu poticanja procesa klijavosti rotkvice i ječma. Za rast i razvoj stabljike boljim se pokazala PAW voda formirana HVED plazmom i dušikom kao radnim plinom. Zahvaljujući formiranim nitratima zaustavila se dormancija te potaknuo proces klijanja sjemena. Primijenjenim plazma tretmanima formirani su kisikovi i dušikovi radikali uzrokovavši pad pH vrijednosti te povišenje temperature i električne vodljivosti PAW vode.

Abstract (english)

Cold plasma is a novel technology used in agriculture for germination enhancement. Cold plasma can be generated directly by high-pressure gas discharge treatment, which induces changes on the seed surface or by indirect treatment of the liquid that is used for further applications to the seed. The aim of this study was to compare the effect of plasma activated water (PAW) on germination of barley and radish. PAW water is activated by HVED plasma, jet plasma and microwave plasma. Microwave plasma treatment with argon as a working gas is best solution for activation of PAW water in order to enhance the germination of radish and barley while HVED plasma treatment with nitrogen as a working gas for the growth and development of the stem. Due to the nitrates formed by cold plasma, dormancy was stopped and the seed germination process was initiated. Plasma treatment induced creation of radicals in PAW causing low pH, temperature and conductivity rise.

• Keywords: hladna plazma; plazmom aktivirana voda; ječam; rotkvica; klijanje
• Keywords (english): cold plasma; plasma activated water; barley; radish; germination
• Language: croatian
• URN:NBN: urn:nbn:hr:159:977423
• Study programme: Title: Food Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-02-03 10:53:09