Repelentne etiketne nalepke iz invazivnih tujerodnih rastlin proti komarjem

Mavrić, Zala (author), Možina, Klemen (mentor), Grilc, Blaž (comentor)

V zadnjih letih postajajo botanični repelenti za žuželke vse bolj priljubljeni kot alternativa sintetičnim kemičnim repelentom proti škodljivcem, saj naj bi predstavljali zmanjšano tveganje za okolje in zdravje ljudi. N,N-dietil-3-metilbenzamid (DEET) je trenutno najboljši razpoložljivi repelent predvsem za komarje in klope, vendar strokovnjaki poročajo o primerih iritacije kože, izpuščajih in nekaterih primerih nevroloških težav pri otrocih po uporabi DEET, zato se je zanimanje potrošnikov za naravne alternativne repelente hitro povečalo. Zaradi povzročene škode in prizadevanj za njihovo obvladovanje invazivne vrste komarjev svetovno gospodarstvo letno stanejo več milijonov dolarjev. Prav tako se povečujejo stroški invazivnih tujerodnih rastlin, zato se zaradi globalnih in lokalnih vplivov pojavlja vse večja potreba po ukrepanju, zgodnjem odkrivanju, ozaveščanju in hitrem odzivanju. To je ključnega pomena za preprečevanje nadaljnjega širjenja teh vrst. Namen magistrskega dela je bil načrtovati, razviti, izdelati in testirati prototipe etiketnih nalepk iz invazivnih tujerodnih rastlin s premazom, ki vsebuje eterična olja na poroznih nosilcih, ki služijo kot zaščita pred piki komarjev in podobnimi krvosesnimi žuželkami. Raziskava repelentnih etiketnih nalepk je bila izdelana v sodelovanju s Fakulteto za farmacijo in je obravnavala sproščanje in repelentnost posameznih mešanic v kombinaciji s premazom na različnih papirnih podlagah iz invazivnih tujerodnih rastlin.Testiranih je bilo 6 različnih vzorcev, kjer smo za osnovo papirne podlage uporabili japonski dresnik (Fallopia japonica), rozgo (Solidago gigantea) in akacijo (Robinia pseudoacacia), premazali pa smo jih z dvema različnim mešanicama eteričnih olj, katere smo vezali na porozne nosilce SYLOID® XDP (W. R. Grace & Co.-Conn., ZDA) za daljše izhlapevanje in delovanje. Ugotovljeno je bilo, da naše repelentne etiketne nalepke uspešno delujejo v boju proti komarjem. Največjo uspešnost je dosegel vzorec iz osnove japonskega dresnika s premazno mešanico, ki je vsebovala mešanico eteričnih olj geranije, sivke in evkaliptusa. Poleg repelentne učinkovitosti nudijo nalepke učinkovito možnost uporabe invazivnih tujerodnih rastlin v obliki repelentnih etiketnih nalepk proti komarjem.

• Language: Slovenian
• Keywords: repelentnost, komarji, invazivne vrste, porozni nosilci, eterična olja
• Work type: Master's thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2022
• PID: 20.500.12556/RUL-139437
• Publication date in RUL: 02.09.2022

Secondary language

• Language: English
• Title: Anti-mosquitoes repellent stickers from invasive alien plants

Abstract

In recent years, botanical insect repellents have become increasingly popular as an alternative to synthetic chemical pesticides as they are thought to pose a risk to the environment and human health. N,N-diethyl-3-methylbenzamide (DEET) currently remains the best available repellent against mosquitoes and ticks, but there were some cases of skin irritation, rashes and neurological problems in children that have been reported after DEET use, so interest in natural alternatives has increased. Invasive mosquito species cost the global economy millions of dollars annually in the damage caused and efforts to control them. The costs of invasive alien plants are also on the rise, with global and local influences increasing the need for action, early detection, awareness and rapid response, which has proved crucial to prevent further spread of these species. The purpose of the master's thesis was to design, develop, manufacture and test prototypes of stickers from invasive alien plants with a coating containing repellent encapsulation of essential oils to protect against mosquito bites and similar blood-sucking insects. The research of repellent label labels was made in collaboration with the Faculty of Pharmacy and addressed the release and repellency of individual mixtures in combination with coating on different paper substrates from invasive alien plants. Six different samples of Japanese knotweed (Fallopia japonica), Goldenrod (Solidago gigantea) and Robinia (Robinia pseudoacacia), were coated with two different mixtures of essential oils and tested. They were encapsulated on solid SYLOID® XDP (W. R. Grace & Co.-Conn., ZDA) carriers, for longer evaporation. Our repellent label labels have been found to work successfully in the fight against mosquitoes. The greatest success was achieved by the sample of Japanese knotweed with a coating mixture containing a mixture of essential oils of geranium, lavender and eucalyptus. In addition to repellent efficacy, labels are an effective option for the use of invasive alien plants in the form of mosquito repellent labels.

• Keywords: repellent, mosquitoes, invasive species, encapsulation, essential oils