Antibakterijski učinak ekstrakta paprike Capsicum chinense na bakterije Erwinia amylovora i Escherichia coli

master's thesis

• Title (english): Antibacterial properties of Capsicum chinese pepper extract on bacteria Erwinia amylovora and Escherichia coli
• Author: Stipe Brdar
• Mentor: Edyta Đermić (mentor)
• Mentor: Damir Đermić (komentor)
• Committee member: Edyta Đermić (predsjednik povjerenstva)
• Committee member: Joško Kaliterna (član povjerenstva)
• Committee member: Božidar Benko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Plant Pathology); Zagreb
• Defense date and country: 2024-07-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Biljne bakterioze predstavljaju značajan globalni i ekonomski problem u uzgoju bilja. Posebno se ističe problem bakterioza na višegodišnjim kulturama, gdje je suzbijanje izrazito sloţeno i dugotrajno, te nerijetko veoma skupo. Najava ukidanja velikog broja sredstava na osnovi bakra, nameće potrebu pronalaska alternativnih sredstava za borbu protiv fitopatogenih bakterija, ali i kontaminirajućih bakterija u hrani. Tu su se posebno učinkovitima pokazali pojedini biljni spojevi (eterična ulja, fenoli, glikozidi...), uz to su ova sredstva ekološki prihvatljiva i često neškodljiva za ljude i ţivotinje. Obzirom da su poznata protuupalna, analgetska i antimikrobna svojstva ekstrakta chilli paprike Capsicum chinense, mnoga istraţivanja u veterini i medicini su se usredotočila na ispitivanje antimikrobnih svojstava ekstrakta i emulzije. Njihova primjena u suzbijanju fitopatogenih organizama, osobito fitopatogenih bakterija, je nedovoljno istraţena. U ovom radu istraţuje se potencijal ekstrakta i emulzije čistog kapsaicina, kao njegove glavne aktivne tvari, u suzbijanju fitopatogene bakterije Erwinia amylovora, ali i kontaminirajuće bakterije Escherichia coli u hrani. Provedenim istraţivanjem, došlo se do zaključka da ekstrakt i emulzija imaju antibakterijski učinak na E. amylovora, kao i na E. coli.

Abstract (english)

Bacterial plant diseases represent a global and economic problem in plant production. Major problem is the control of bacterial diseases on perennial crops, where the disease control is quite complicated, long-lasting and expensive. Because of the announced ban of many copper based bactericides, food production industry is in the dire need for alternative bactericidal products. Many plant derivatives, like phenoles, essential oils and glycosides, showed their potential on this matter. One of the advantages of plant derivatives is their eco-friendliness, and their harmlessness for humans and animals, especially insects. It is known that chilli pepper C. chinense extract posesses analgetic, anti-inflamatory and antimicrobial properties. Therefore in the last few years many clinical researches were carried out to prove it's antimicrobial effect, while the research on the plant pathogenic bacteria are rare. Therefore this research focuses on chilli pepper extracts antimicrobial effect on plant pathogenic bacterium Erwinia amylovora, but also on a food contaminating bacterium Escherichia coli. Through the experimental part of the research, a conclusion was reached, that the extract, and the emulsion both showed antimicrobial properties against E. amylovora and E. coli.

• Keywords: suzbijanje; biljni ekstrakt; fitopatogene bakterije; chilli paprika; antimikrobni učinak
• Keywords (english): antimicrobial properties; plant extracts; phytopathogenic bacteria; chilli pepper; disease control
• Language: croatian
• URN:NBN: urn:nbn:hr:204:377608
• Study programme: Title: Phytomedicine; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka fitomedicine (magistar/ magistra inženjer/inženjerka fitomedicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to authenticated users
• Created on: 2024-07-10 08:15:21