کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997473 | 1459913 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Low-melanin containing pullulan production from sugarcane bagasse hydrolysate by Aureobasidium pullulans in fermentations assisted by light-emitting diode
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pullulan is a polymer produced by Aureobasidium pullulans and the main bottleneck for its industrial production is the presence of melanin pigment. In this study, light-emitting diodes (LEDs) of different wavelengths were used to assist the fermentation process aiming to produce low-melanin containing pullulan by wild strain of A. pullulans LB83 with different carbon sources. Under white light using glucose-based medium, 11.75Â g.Lâ1 of pullulan with high melanin content (45.70Â UA540nm.gâ1) was obtained, this production improved in process assisted by blue LED light, that resulted in 15.77Â g.Lâ1 of pullulan with reduced content of melanin (4.46Â UA540nm.gâ1). By using sugarcane bagasse (SCB) hydrolysate as carbon source, similar concentration of pullulan (about 20Â g.Lâ1) was achieved using white and blue LED lights, with lower melanin contents in last. Use of LED light was found as a promising approach to assist biotechnological process for low-melanin containing pullulan production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 230, April 2017, Pages 76-81
Journal: Bioresource Technology - Volume 230, April 2017, Pages 76-81
نویسندگان
Ruly Terán Hilares, Camila Ayres Orsi, Muhammad Ajaz Ahmed, Paulo Franco Marcelino, Carlos Renato Menegatti, Silvio Silvério da Silva, Júlio César dos Santos,