Upotreba lasera niske energije kao neinvazivne tehnike predtretmana sušenju grožđa

master's thesis

• Title (english): The use of low-energy lasers as a non-invasive pretreatment technique in grape drying
• Author: Nick-Borna Pavić
• Mentor: Ante Galić (mentor)
• Committee member: Ante Galić (predsjednik povjerenstva)
• Committee member: Stjepan Pliestić (član povjerenstva)
• Committee member: Marin Mihaljević Žulj (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Agricultural Technology, Storage and Transport); Zagreb
• Defense date and country: 2020-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Grožđe se uglavnom suši u svrhu proizvodnje grožđica te aromatiziranja i proizvodnje desertnih vina. Glavni ciljevi sušenja grožđa su skraćivanje trajanja postupka a time i smanjivanje troškova uz zadržavanje zadovoljavajućih nutritivnih i senzorskih svojstava.
Neinvazivne tehnike kao što je laser mogu se primijeniti kao predtretman sušenju. Primjena lasera male izlazne snage izaziva više pozitivnih reakcija na biljnom materijalu, što pruža mogućnosti njihove široke primjene u poljoprivredi te preradi i doradi poljoprivrednih proizvoda.
Analize su provedene na sortama grožđa Muškat Hamburg i Traminac. Sušenje kontrolnog uzorka i bobica tretiranih laserom (izlazne snage 100 i 200 mW) provedeno je u laboratorijskoj sušnici na temperaturi od 40 ºC. Nakon sušenja provedena je analiza brzine otpuštanja vode.

Abstract (english)

Grapes are mainly dried for the purpose of raisin production and aromatization and production of dessert wines.
The main goals of grape drying are to shorten the duration of the process and to reduce costs while maintaining nutritional and sensory properties.
Non-invasive techniques such as laser can be applied as pre-treatment for drying. The use of low-power lasers causes more positive reactions on plant material, which provides opportunities for their widespread use in agriculture and processing and finishing of agricultural products.
Analyzes were performed on Muscat Hamburg and Traminac grape varieties. Drying of the control sample and laser-treated berries (with output powers 100 and 200 mW) was performed in a laboratory dryer at a temperature of 40 ºC. After drying, analysis of water release was performed.

• Keywords: grožđe; bobice; sušenje; laser
• Keywords (english): grapes; berries; drying; laser
• Language: croatian
• URN:NBN: urn:nbn:hr:204:734743
• Study programme: Title: Agricultural Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka poljoprivredne tehnike (magistar/ magistra inženjer/inženjerka poljoprivredne tehnike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2020-10-30 08:52:29