Isomerization Kinetics of Glucose to Fructose in Aqueous Solution with Magnesium‐Aluminum Hydrotalcites

“…The basic properties of Mg-Al HT can be controlled through various methods [43,44]. In particular, an easy way to control such properties is to tune the atomic Mg/Al atomic ratio in Mg-Al HT, and many studies have been published in which the Mg/Al ratio was made to vary [44,45].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Solvent on the Basic Properties of Mg–Al Hydrotalcite Catalysts for Glucose Isomerization

Kwon

Cho

2020

Catalysts

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We suggested the existence of a relationship between the base properties of Mg–Al hydrotalcite catalysts and the solvents employed in the industrially important isomerization of glucose produce fructose. We prepared Mg–Al hydrotalcite catalysts with different Mg/Al atomic ratios to tune the basic properties of the catalyst. The prepared catalysts were used in the glucose isomerization conducted in various solvents. Experimental results confirmed that the catalysts exhibited different activities in the different solvents. We also implemented the Hammett indicator method, which allows to analyze the basic properties of the catalysts in various solvents. According to evidence, the basic properties of the catalysts varied substantially in different solvents. Notably, increases in the catalysts’ base properties matched the observed increases in fructose yield of the glucose isomerization. Consequently, we suggested that, in order to prepare efficient Mg–Al hydrotalcite catalysts for glucose isomerization, the interaction between the solvent used to conduct the reaction and the basic properties of the catalyst, which are in turn influenced by the solvent, should be considered.

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“…Therefore, this is a harsh process that leads to unacceptable sugar breakdown. Besides, the chemical synthesis of HFCS involves high calcination temperature and is not environmentally friendly [11][12][13]. The homogeneous Lewis acid generally has the problem of separation and recovery, and the synthesis of Sn-β zeolite is more complicated.…”

Section: Introductionmentioning

confidence: 99%

Optimized recombinant Bacillus Subtilis 168 whole-cell catalyzes one-step biosynthesis of high fructose syrup

2021

IJEAB

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High fructose syrup is a sweetener that can replace sucrose, which is widely used in the food and beverage industries. In this study, codon-optimized Actinoplanes missouriensis CICIM B0118 (A) derived glucose isomerase heterologous expression was realized in the food-grade strain Bacillus Subtilis 168, and the recombinant Bacillus Subtilis 168/pMA5-xylA was successfully constructed. The whole-cell bioconversion system of D-glucose isomerization to the biosynthesis of D-fructose was optimized. The results showed that the concentration of biocatalysts was DWC 40 g/L, and the concentration of substrate D-glucose was 180 g/L, Mg2+ concentration 10 mmol/L, Co2+ concentration 1 mmol/L, continuous conversion at 70℃、220 R/min for 18 h, D-fructose concentration reached 103.32 g/L, the conversion rate was 57.4%, realizing the high fructose syrup one-step safe biosynthesis. This research provided an experimental and theoretical basis for the industrialized and safe biosynthesis of high fructose syrup and had an important reference value.

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Isomerization Kinetics of Glucose to Fructose in Aqueous Solution with Magnesium‐Aluminum Hydrotalcites

Cited by 19 publications

References 50 publications

Production of levulinic acid and alkyl levulinates: a process insight

Production of levulinic acid and alkyl levulinates: a process insight

Effect of the Solvent on the Basic Properties of Mg–Al Hydrotalcite Catalysts for Glucose Isomerization

Optimized recombinant Bacillus Subtilis 168 whole-cell catalyzes one-step biosynthesis of high fructose syrup

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