Naslov
Effect of process parameters on biodiesel production from edible and waste oils by Burkholderia cepacia lipase

Autori
Ostojčić, Marta ; Bilić Rajs, Blanka ; Tišma, Marina ; Budžaki, Sandra ; Strelec, Ivica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
4th international Conference on Bioresource Technology for Bioenergy, bioproducts and Environmental Sustainability (BIORESTEC)

Mjesto i datum
Riva del Garda, Italija, 14.05.2023. - 17.05.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biodiesel ; Burkolderia cepacia lipase ; waste oils ; iodine value

Sažetak
Although biodiesel has been on the market for many years as an alternative to fossil fuels and its production is carried out through the already known routes of chemical transesterification, the need for development of more environmentally friendly production using lipase is still in the focus. To gain insight into the effects of several process parameters on the biocatalytic biodiesel production, we have characterised Burkolderia cepacia lipase and used it in the production of biodiesel from edible and waste cooking oils and fats at previously optimised pH and T. In addition, characterization of the feedstock including fatty acid profile, percentage of free fatty acids, peroxide and iodine value was performed. The results showed that at optimized process conditions after one hour of reaction time, 250 U of the lipase per 1 g of reaction mixture was sufficient to achieve fatty acid methyl ester content of 99% when fresh edible oil was used as feedstock, while 97% of FAME was reached when waste cooking oil/fat was used as feedstock. Iodine value, as one of the indicators of oil/fat quality, showed statistically significant correlation with fatty acid methyl esters content, what indicates that it can be used as one of the indicators for selecting feedstock for enzymatic production of biodiesel.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA