Subcritical water hydrolysis for sugar recovery from bakery leftovers: kinetic and thermodynamic analysis

被引：2
|
作者：
Mohd Thani, Nurfatimah [1 ]
Mustapa Kamal, Siti Mazlina [1 ]
Taip, Farah Saleena [1 ]
Sulaiman, Alifdalino [1 ]
Omar, Rozita [2 ]
机构：
[1] Univ Putra Malaysia, Dept Proc & Food Engn, Fac Engn, Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Dept Chem & Environm Engn, Fac Engn, Serdang 43400, Selangor, Malaysia
来源：
BIOMASS CONVERSION AND BIOREFINERY | 2023年 / 13卷 / 03期
关键词：
Subcritical water hydrolysis; Monosaccharides; HMF; Kinetic model; Thermodynamic; LEVULINIC ACID; EXTRACTION; OPTIMIZATION; PRODUCTS; GLUCOSE; FIBER;
D O I：
10.1007/s13399-021-01416-x
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This study aims to perform kinetic and thermodynamic analysis of subcritical water hydrolysis (SWH) of bakery leftovers. Hydrolysis kinetics of leftover croissants (LC) and leftover doughnuts (LD) into monosaccharides and by-product (hydroxymethylfurfural, HMF), via subcritical water hydrolysis, were studied in temperature range of 100 to 240 degrees C for 6 to 30 minutes and solid loading of 10% (w/v). The monosaccharides yield increased from 100 to 200 degrees C, but it decreased when the temperature further increased from 220-240 degrees C due to degradation of monosaccharides into its by-product (HMF). The activation energy (Ea) monosaccharides degradation was higher than its formation: 104.87 and 88.55 kJ/mol (LC) and 104.69 and 75.72 kJ/mol (LD). The positive values of Delta G(#) signified that the SWH for sugar recovery from LC and LD is an endergonic reaction.
引用
收藏
页码：1927 / 1935
页数：9
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