کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6482522 | 1415894 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimisation of organosolv pretreatment for the extraction of polyphenols from spent coffee waste and subsequent recovery of fermentable sugars
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present study, organosolv pretreatment strategy was modified for the comprehensive utilisation of spent coffee waste (SCW) for polyphenol extraction and reducing sugar production. A response surface design involving four factors viz. ethanol concentration, temperature, time and H2SO4 concentration was created for optimisation of polyphenol extraction from SCW. 11.2â¯mg GAE of polyphenol content/g of SCW was obtained using ethanol (68% v/v) at 51â¯Â°C for 45â¯min in the presence of 1.5% H2SO4 as catalyst. Furthermore, 13.78 of QE of Total Flavonoid Content/g of SCW was obtained following this process which was 7.6-fold higher than control (1.81â¯QE/g of SCW). Lignin removal of 24.4% was achieved following modified organosolv protocol. Enzymatic hydrolysis of pretreated SCW yielded 29.05â¯mg/g of total reducing sugar, which was 1.27-fold higher than control (22.8â¯mg/g). XRD, FTIR, and DSC profiles of the pretreated substrates were analysed for various changes incurred in pretreated SCW.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology Reports - Volume 3, September 2018, Pages 7-14
Journal: Bioresource Technology Reports - Volume 3, September 2018, Pages 7-14
نویسندگان
Rajeev Ravindran, Claire Desmond, Swarna Jaiswal, Amit K. Jaiswal,