Microwave-assisted hydrothermal extraction of natural malic acid for the synthesis of low transition temperature mixtures

被引：17

作者：

Yiin, Chung Loong ^{[1
]}

Yusup, Suzana ^{[1
]}

Quitain, Armando T. ^{[2
]}

Sasaki, Mitsuru ^{[2
]}

Uemura, Yoshimitsu ^{[1
]}

Kida, Tetsuya ^{[2
]}

机构：

[1] Univ Teknol PETRONAS, Dept Chem Engn, Mission Oriented Res Green Technol, Biomass Proc Technol Cluster,Ctr Biofuel & Bioche, Tronoh 32610, Perak, Malaysia

[2] Kumamoto Univ, Dept Appl Chem & Biochem, Chuo Ku, 2-39-1 Kurokami, Kumamoto 8608555, Japan

来源：

JOURNAL OF CLEANER PRODUCTION | 2016年 / 113卷

基金：

日本学术振兴会;

关键词：

Microwave-assisted hydrothermal extraction; Malic acid; Kinetic modelling; Synthesis; Low transition temperature mixture; Delignification; OPTIMIZATION; ANTIOXIDANT; LTTMS; PHENOLICS; SOLVENTS;

D O I：

10.1016/j.jclepro.2015.12.053

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work describes the utilization of microwave hydrothermal extracted malic acid from cactus, lophatherum herb, papaya and Luffa cylindrica as hydrogen bond donor for the synthesis of natural low transition temperature mixtures (LTTMs) with sucrose as hydrogen bond acceptor. The effects of parameters including reaction temperature, extraction time, mass of sample and oxidant, H2O2 were discussed. The saturation equation was used to fit with the experimental data, observing only a slight loss of the goodness of fit. The optimum conditions for microwave hydrothermal extraction were found to be at 1 g of sample, 200 degrees C and 45 min in the presence of hydrogen peroxide (H2O2) as oxidant. Consequently, the proposed method was successfully applied to extract malic acid from plants and fruits for the synthesis of LTTMs. The LTTMs prepared from the extracted malic acid have identical physicochemical properties with the LTTMs derived from commercial malic acid due to the existence of hydrogen bond and the ability to dissolve lignin. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：919 / 924

页数：6

共 26 条

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