Evaluation of Different Catalysts for Glucose Isomerization at Various Operating Conditions: A Case Study

Author : Saguan, Mark Glenn Bahala
Major Adviser : Movillon, Jovita L.
Major Co-Adviser : Mercado, Susana M.
Committee Members : Capunitan, Jewel A.; Alcantara, Jerico Z.
Year : 2020
Month : August
Type : Thesis
Degree: BS
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High fructose syrup (HFS) is known as a common sugar substitute and is commonly produced from the isomerization of glucose with the help of catalysts. It is lower in calorie content compared to other types of sugar and is safe for consumption. The increase in demand for sweetener facilitated the production of HFS which aims high fructose percent yield and is suitable for food applications. This study investigated the effectiveness of various methods or processes of isomerization in producing fructose from glucose with respect to fructose yield. A comparative analysis using related studies was done to identify which catalyst is suitable for the production of sweetener. This study discussed the advantages, disadvantages, and applicability of each method/process. It was found out that enzyme-catalyzed isomerization produced the highest fructose yield under mild operating conditions. It was found to be labor-intensive and produced the least amount of unwanted products. On the other hand, base-catalyzed isomerization and acid-catalyzed isomerization were found to be applicable to petroleum and other industries which operate at high temperature and acidic conditions. The previous two catalysts yielded lower amounts of fructose and produced unwanted products such as humins, psicose, HMF and acids. Therefore, to meet the rising demand for sweeteners, the use of enzyme from microorganism is recommended for the possible commercialization of HFS production in the Philippines using indigenous agricultural products such as cassava.

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