Deterioration potential of Aureobasidium pullulans on biodiesel, diesel, and B20 blend. (February 2020)

• Record Type: Journal Article
• Authors: Cazarolli, Juciana Clarice; Silva, Thais Livramento; da Camara Ribas, Rodolfo Krüger; da Fontoura Xavier Costa, Letícia; de Moura, Tiane; Galeazzi, Carolina Faganello; Dallé da Rosa, Priscila; Kenne, Diego Costa; Carvalho, Ânderson Ramos; Valente, Patrícia; Pizzolato, Tânia Mara; Correa, Camila; Ferrão, Marco Flores; Guedes Frazzon, Ana Paula; Bento, Fátima Menezes
• Is Part Of: International biodeterioration & biodegradation. Volume 147(2020)
• Publication Date: 2020-02
• Subjects: Biodiesel -- Diesel -- Aureobasidium pullulans -- Biodeterioration; Biodegradation -- Periodicals; Bioremediation -- Periodicals; Biodegradation -- Periodicals; Biodégradation -- Périodiques; Biorestauration -- Périodiques; Electronic journals; 620.11223
• DOI: 10.1016/j.ibiod.2019.104839
• Languages: English
• ISSNs: 0964-8305

Abstract

Abstract: A fungal species was isolated from 100% soybean methyl ester (B100 SME) and identified as Aureobasidium pullulans . The yeast was evaluated for its ability to grow in and to biodegrade B100 SME, B0 ultra-low-sulfur diesel (ULSD), and B20 ULSD (80% v/v ULSD + 20% B100 SME) in microcosms containing fuel over Bushnell-Haas mineral salts medium. The presence of SME affected the fungal cell morphology and metabolism. After 25 days, fungal biomass at the fuel/water interface in microcosms containing B100 SME and B20 ULSD were 0.98 ± 0.18 mg mL −1 and 0.16 ± 0.05 mg mL −1, respectively. In the B100 SME microcosms the esters concentrations fell by 10%. It was possible to observe that A. pullulans was biodeteriogenic in B100 and B20, but not in B0. Graphical abstract: Image 1 Highlights: Aureobasidium pullulans has grown in biodiesel and after 25 days 10% of esters degradation was detected. Biodiesel as the only carbon source induced chlamydospores, oleosomes, and lipase production by A. pullulans. Palmitaldehyde was detected in mineral medium and biodiesel as A. pullulans main metabolite.