کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997090 | 1459902 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetic modelling of starch and lipid formation during mixotrophic, nutrient-limited microalgal growth
ترجمه فارسی عنوان
مدل سازی جنبشی از نشاسته و تشکیل چربی در طی رشد مخلوطی، محدودیت مواد مغذی
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Microalgal starch and lipids, carbon-based storage molecules, are useful as potential biofuel feedstocks. In this work, cultivation strategies maximising starch and lipid formation were established by developing a multi-parameter kinetic model describing microalgal growth as well as starch and lipid formation, in conjunction with laboratory-scale experiments. Growth dynamics are driven by nitrogen-limited mixotrophic conditions, known to increase cellular starch and lipid contents whilst enhancing biomass growth. Model parameters were computed by fitting model outputs to a range of experimental datasets from batch cultures of Chlamydomonas reinhardtii. Predictive capabilities of the model were established against different experimental data. The model was subsequently used to compute optimal nutrient-based cultivation strategies in terms of initial nitrogen and carbon concentrations. Model-based optimal strategies yielded a significant increase of 261% for starch (0.065Â gCÂ Lâ1) and 66% for lipid (0.08Â gCÂ Lâ1) production compared to base-case conditions (0.018Â gCÂ Lâ1 starch, 0.048Â gCÂ Lâ1 lipids).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 241, October 2017, Pages 868-878
Journal: Bioresource Technology - Volume 241, October 2017, Pages 868-878
نویسندگان
Gonzalo M. Figueroa-Torres, Jon K. Pittman, Constantinos Theodoropoulos,