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  • Title: Pullulan gum production from low-quality fig syrup using Aureobasidium pullulans.
    Author: Monjazeb Marvdashti L, Abdolshahi A, Hedayati S, Sharifi-Rad M, Iriti M, Salehi B, Sharifi-Rad J.
    Journal: Cell Mol Biol (Noisy-le-grand); 2018 Jun 25; 64(8):22-26. PubMed ID: 29981680.
    Abstract:
    Pullulan is an important polysaccharide with several potential applications in food science, pharmaceutical and cosmetic industries, but high costs of pullulan production are the main limitation for commercial utilization. Therefore, a cost-effective process for pullulan production was developed using fig syrup as an exclusive nutrient source. In particular, the feasibility of using low quality fig syrup as a supplemental substrate for pullulan gum production by Aureobasidium pullulans was investigated. Fermentation was carried out over a range of fig syrup and sucrose degrees Brix (5-15%). Maximum pullulan gum production was observed after 96h using 12.5% fig syrup, yielding approximately14.06 g/L. This value of pullulan production (14.06 g/L) was higher than the amount of pullulan produced using sucrose as substrate (5.01 g/L). In conclusion, fig syrup was an effective substrate for pullulan production by Aureobasidium pullulans, and, therefore, this byproduct deserves attention for the cost-effective and environmentally friendly pullulan production.
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