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ChemicalBook CAS DataBase List Sucrose
57-50-1

Sucrose synthesis

5synthesis methods
Sucrose is obtained from the sugar cane plant, which contains 15–20% sucrose, and sugar beet, which contains 10–17% sucrose. Juice from these sources is heated to coagulate water-soluble proteins, which are removed by skimming. The resultant solution is then decolorized with an ion-exchange resin or charcoal and concentrated. Upon cooling, sucrose crystallizes out. The remaining solution is concentrated again and yields more sucrose, brown sugar, and molasses.
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Yield:50-99-7 11.8% ,57-50-1 10.1%

Reaction Conditions:

with sodium hydroxide in water at 130; pH=8; for 6 h;Inert atmosphere;Sealed tube;pH-value;

Steps:

Methods

The initial reaction solution, containing 0.1746 g cellobiose, 87.3 mg catalyst, and 25 mL of deionized water, was sealed and heated and kept at the desired temperature. Before sealing, N2 gas was passed into the solution for 30 min. The magnetic catalyst was recovered by magnetic separation, washed, and vacuum dried. Concentrations of cellobiose, glucose, fructose, and other products in the reaction solution were determined quantitatively by HPLC with an external standard method by comparing to a standard sample. The pH was adjusted with H2SO4 or NaOH. On a carbon basis, the conversion of cellobiose X was calculated as X = (C0 - Ct)/C0. The yield of the monosaccharide Y1 was calculated as Y1 = C1t/2C0. The yield of sucrose Y2 was calculated as Y2 = C2t/C0. The selectivity of glucose S was calculated as S = Y1/X, where C0, Ct are the concentrations of cellobiose at reaction times t = 0 and t, respectively, and C1t, C2t are the concentrations of the monosaccharide and sucrose at time t, respectively.

References:

Yang, Ren-Qiang;Zhang, Ni;Meng, Xiang-Guang;Liao, Xiao-Hong;Li, Lu;Song, Hong-Jin [Australian Journal of Chemistry,2018,vol. 71,# 8,p. 559 - 565]

Sucrose Related Search:

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