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==Introduction==
==Introduction==
The topic is the study of the enzyme '''glucose oxidase''' (GOX) from '''aspergillus niger'''. It is not an enzyme from human body. Instead, it is found in the cells of fungus. These types of enzymes catalysts the oxidation of beta-D-glucose to δ-gluconolactone and H2O2 (which is not a reaction happening in human body) <ref>PMID:10216293</ref>.  
The topic is the study of the enzyme '''glucose oxidase''' (GOX) from '''aspergillus niger'''. It is not an enzyme from human body. Instead, it is found in the cells of fungus. These types of enzymes catalysts the oxidation of beta-D-glucose to '''δ-gluconolactone''' and '''hydrogen peroxide''' (which is happening in human body) <ref>PMID:10216293</ref>.  


GOX has a “considerable commercial importance” in biosensors according to the essay. This type of enzyme is wildly used in biosensor. Since it could react with glucose with a great selectivity and produce hydrogen peroxide, the amount of hydrogen peroxide is a function of the initial amount of the glucose ideally. For is reason, it is used for quantitively measuring the amount of concentration of glucose, or in a simpler way, measuring the concentration of blood glucose <ref>PMID: 24907743</ref>. Thus, it could be (actually had already been) widely used in quick blood glucose tests, which is essential to those who have diabetes. However, the usage of this enzyme is not exactly limited to the medical area. A good method of reflecting the concentration of glucose could also be used in food industry in measuring and controlling the sugar amount in food samples since most types of natural-sourced carbohydrate in food industry, such as sucrose and lactose, contain glucose <ref>PMID: 19374943</ref>.  
GOX has a “considerable commercial importance” in biosensors according to the essay. This type of enzyme is wildly used in biosensor. Since it could react with glucose with a great selectivity and produce hydrogen peroxide, the amount of hydrogen peroxide is a function of the initial amount of the glucose ideally. For is reason, it is used for quantitively measuring the amount of concentration of glucose, or in a simpler way, measuring the concentration of blood glucose <ref>PMID: 24907743</ref>. Thus, it could be (actually had already been) widely used in quick blood glucose tests, which is essential to those who have diabetes. However, the usage of this enzyme is not exactly limited to the medical area. A good method of reflecting the concentration of glucose could also be used in food industry in measuring and controlling the sugar amount in food samples since most types of natural-sourced carbohydrate in food industry, such as sucrose and lactose, contain glucose <ref>PMID: 19374943</ref>.