The pH of the reaction mixture affects bio-production of lactic acid by loofa immobilized Rhizopus oryzae PTCC 5263
Publish place: سومین کنفرانس بین المللی علوم و مهندسی
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
View: 533
This Paper With 6 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICESCON03_155
تاریخ نمایه سازی: 16 شهریور 1395
Abstract:
Lactic acid production by Rhizopus oryzae PTCC 5263 was evaluated in the present study and the strain’s ability in production of this organic acid was carried out at various pH ranges of the culture media. Lactic acid production was optimized upon the fermentation being controlled at pH 4.5 by adding calcium carbonate slurry and maximum lactic acid concentration was 41 g/l. Additionally, the production of lactic acid by loofa immobilized R. oryzae was compared with free cells and the maximum productivity was obtained during second 24 h of fermentation for immobilized cells (1.82 g/l.h) and final production and yield of lactic acid were 54.06g/l and 45.6%, respectively. Therefore, the immobilization of R. oryzae in loofa sponge can sustain stable morphology control in filamentous fungal fermentation and prevent the oxygen and nutrient limitations. Thus, cell immobilization via adsorption in the bare pieces of loofa sponge is a suitable technique in lactic acid production
Keywords:
Authors
Baiza Mahdiar Roudsari
Chemical Engineering Department,Amirkabir University of Technology,Tehran, Iran
Azita Dejaloud
Chemical Engineering Department,Amirkabir University of Technology,Tehran, Iran
Farzaneh Vahabzadeh
Chemical Engineering Department,Amirkabir University of Technology, Tehran, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :