Integrated rice bran processing by supercritical CO2 extraction and subcritical water hydrolysis to obtain oil, fermentable sugars, and platform chemicals

被引：21
|
作者：
Moreira, Barbara P. [1 ]
Draszewski, Crisleine P. [1 ]
Rosa, Natanael C. [1 ]
Tres, Marcus V. [2 ]
Zabot, Giovani L. [2 ]
Pereira, Fernanda C. [3 ]
Abaide, Ederson R. [1 ]
Castilhos, Fernanda [1 ]
机构：
[1] Univ Fed Santa Maria, Dept Chem Engn, 1000 Roraima Ave, BR-97105900 Santa Maria, RS, Brazil
[2] Fed Univ Santa Maria UFSM, Lab Agroind Proc Engn LAPE, 1040 Sete Setembro St, BR-96508010 Cachoeira Do Sul, RS, Brazil
[3] Northwestern Reg Univ State Rio Grande Sul UNIJUI, Dept Exact Sci & Engn, 3000 Comercio Ave, BR-98700000 Ijui, RS, Brazil
来源：
JOURNAL OF SUPERCRITICAL FLUIDS | 2023年 / 192卷
关键词：
Green solvents; CO2; Platform chemicals; Residue; Subcritical processing; Energy; SEED; SOLUBILITY; RESIDUES; FIBER; MODEL; HUSK;
D O I：
10.1016/j.supflu.2022.105786
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Rice bran is rich in oil and constituted by a lignocellulosic structure, which is a potential raw material for its processing into several products. Therefore, the oil yield and composition of oil obtained from supercritical CO2 extraction were investigated to select a condition for using defatted rice bran for processing by subcritical water hydrolysis. The effects of temperature (230 degrees C and 260 degrees C) and solvent-to-feed mass ratio (50 and 100 g water/g defatted rice bran) on fermentable sugar yield (YFS) and hydrolysate composition were evaluated and discussed. Supercritical CO2 extraction at 40 degrees C and 20 MPa provided an oil yield of 17.19 wt% at 120 min. For defatted rice bran, the highest YFS (6.53 g sugars/100 g defatted rice bran) was obtained at 260 degrees C and 100 g water/g defatted rice bran.
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页数：9
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