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
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 (0.065 gC L−1) and 66% for lipid (0.08 gC L−1) production compared to base-case conditions (0.018 gC L−1 starch, 0.048 gC L−1 lipids).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 241, October 2017, Pages 868-878
نویسندگان
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