کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4997881 | 1459919 | 2017 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave-assisted chemical pre-treatment of waste sorghum leaves: Process optimization and development of an intelligent model for determination of volatile compound fractions
ترجمه فارسی عنوان
پیش پردازش شیمیایی مایکروویو از برگ های سورگوم پسماند: بهینه سازی فرآیند و توسعه یک مدل هوشمند برای تعیین فراورده های ترکیبی فرار
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کلمات کلیدی
پیش درمان لیگنوسلولزیک، برگ سورگوم، مهار کننده های تخمیر شبکه عصبی مصنوعی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This study reports the profiling of volatile compounds generated during microwave-assisted chemical pre-treatment of sorghum leaves. Compounds including acetic acid (0-186.26Â ng/g SL), furfural (0-240.80Â ng/g SL), 5-hydroxymethylfurfural (HMF) (0-19.20Â ng/g SL) and phenol (0-7.76Â ng/g SL) were detected. The reducing sugar production was optimized. An intelligent model based on Artificial Neural Networks (ANNs) was developed and validated to predict a profile of 21 volatile compounds under novel pre-treatment conditions. This model gave R2-values of up to 0.93. Knowledge extraction revealed furfural and phenol exhibited high sensitivity to acid- and alkali concentration and S:L ratio, while phenol showed high sensitivity to microwave duration and intensity. Furthermore, furfural production was majorly dependent on acid concentration and fit a dosage-response relationship model with a 2.5% HCl threshold. Significant non-linearities were observed between pre-treatment conditions and the profile of various compounds. This tool reduces analytical costs through virtual analytical instrumentation, improving process economics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 224, January 2017, Pages 590-600
Journal: Bioresource Technology - Volume 224, January 2017, Pages 590-600
نویسندگان
Daneal C.S. Rorke, Terence N. Suinyuy, E.B. Gueguim Kana,