Predobrada jelovine

undergraduate thesis

• Title (english): Pretreatment of fir wood
• Author: Klara Pavić
• Mentor: Vlatka Petravić Tominac (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology); Zagreb
• Defense date and country: 2020-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Lignocelulozne sirovine obuhvaćaju poljoprivredne ostatke, šumski otpad i trave, a sastoje se od celuloze, hemiceluloze i lignina. Koriste se za biotehnološku proizvodnju bioetanola, enzima, organskih kiselina, mikrobne biomase i mnogih drugih proizvoda. Kako bi se mogle koristiti u biotehnološkim procesima, neophodna je predobrada kojom se razgrađuje čvrsta struktura sirovine. Metode predobrade dijele se na fizikalne, kemijske, fizikalno-kemijske i biološke. Odabir metode predobrade treba prilagoditi sastavu pojedine sirovine. Meko drvo u prosjeku sadrži veći udio lignina nego druge lignocelulozne sirovine. Ovaj rad daje pregled postupaka predobrade mekog drveta opisanih u literaturi, s posebnim naglaskom na predobradu jelovine. Ovi postupci predobrade provode se kao jednostupanjski ili višestupanjski postupci uz mogućnost kombinacije različitih metoda obrade.

Abstract (english)

Lignocellulosic raw materials include agricultural residues, forest waste and grasses, and consist of cellulose, hemicellulose and lignin. They are used for biotechnological production of bioethanol, enzymes, organic acids, microbial biomass and many other products. In order to be used in biotechnological processes, pretreatment is necessary to decompose the solid structure of raw material. The pretreatment methods are divided into physical, chemical, physicochemical and biological methods. The choice of the pretreatment method should be made according to the composition of each raw material. Softwood on average contains a higher amount of lignin than the other lignocellulosic raw materials. This paper provides an overview of softwood pretreatment procedures described in the literature, with a special emphasis on fir pretreatment. These pretreatment processes are carried out as single-stage or multi-stage processes with the possibility of combining different processing methods.

• Keywords: jelovina; lignoceluloza; meko drvo; predobrada
• Keywords (english): fir wood; lignocellulose; pretreatment; softwood
• Language: croatian
• URN:NBN: urn:nbn:hr:159:819766
• Study programme: Title: Biotechnology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-10-26 10:55:55