Pregled bibliografske jedinice broj: 1218900
Spectrometric analysis of lignin from abonos and oak wood (Quercus robur L.)
Spectrometric analysis of lignin from abonos and oak wood (Quercus robur L.) // Proceedings of Natural resources, green technology and sustainable development/4 / Radojčić Redovniković, Ivana ; Jakovljević, Tamara ; Stojaković, Renata ; Erdec, Dina ; Panić, Manuela ; Damjanović, Anja ; Radošević, Kristina ; Cvjetko Bubalo, Marina (ur.).
Zagreb: Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2022. str. 49-53 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Spectrometric analysis of lignin from abonos and oak
wood (Quercus robur L.)
Autori
Barlović, Nikolina ; Pervan, Stjepan ; Klarić, Miljenko ; Španić, Nikola
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of Natural resources, green technology and sustainable development/4
/ Radojčić Redovniković, Ivana ; Jakovljević, Tamara ; Stojaković, Renata ; Erdec, Dina ; Panić, Manuela ; Damjanović, Anja ; Radošević, Kristina ; Cvjetko Bubalo, Marina - Zagreb : Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2022, 49-53
Skup
4th Natural resources, green technology and sustainable development/4 (GREEN2022)
Mjesto i datum
Zagreb, Hrvatska, 14.09.2022. - 16.09.2022
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
abonos ; bog-wood ; lignin ; oak ; spectrophotometric
Sažetak
Lignin is one of the main macromolecular substances of the cell walls of wood, its part and chemical composition varies between species. Average percentage of lignin is between 20-40 %. There are several methods to quantify, in this paper the percentage of lignin in abonos (bog- wood) and oak wood (Quercus robur L.) was determined using three methods. Acetyl bromide method and Brauns lignin method which give values of the soluble part of lignin and Klason lignin method which also gives the part of lignin insoluble in acids. The soluble part of lignin for the three mentioned methods was determined by spectrophotometric analysis on a UV/Vis spectrophotometer at predetermined wavelengths, and the insoluble part was determined by filtration using glass fiber filter paper and its ignition. Obtained results of lignin percentages were calculated of absorption values obtained from spectrum and ash mass. Since all methods have certain changes in the structure of lignin, the values of lignin participation also differ, which is confirmed by the obtained results and preeceding research.
Izvorni jezik
Engleski
Znanstvena područja
Drvna tehnologija
POVEZANOST RADA
Ustanove:
Fakultet šumarstva i drvne tehnologije
Profili:
Nikolina Barlovic
(autor)
Stjepan Pervan
(autor)
Nikola Španić
(autor)
Miljenko Klarić
(autor)