Detection and enzymatic characterization of human saliva amylase

  • As a rule, an experiment carried out at school or in undergraduate study courses is rather simple and not very informative. However, when the experiments are to be performed using modern methods, they are often abstract and difficult to understand. Here, we describe a quick and simple experiment, namely the enzymatic characterization of ptyalin (human salivary amylase) using a starch degradation assay. With the experimental setup presented here, enzyme parameters, such as pH optimum, temperature optimum, chloride dependence, and sensitivity to certain chemicals can be easily determined. This experiment can serve as a good model for enzyme characterization in general, as modern methods usually follow the same principle: determination of the activity of the enzyme under different conditions. As different alleles occur in humans, a random selection of test subjects will be quite different with regard to ptyalin activities. Therefore, when the students measure their own ptyalin activity, significant differences will emerge, and this will give them an idea of the genetic diversity in human populations. The evaluation has shown that the pupils have gained a solid understanding of the topic through this experiment.

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Author:Chiara Theresa Vey, Viola Kaygusuz, Josefa Sophia Kayser, Andreas Beyer
Parent Title (English):Biochemistry and Molecular Biology Education
Editor: WILEY
Document Type:Article
Date of Publication (online):2024/02/29
Date of first Publication:2024/02/24
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2024/03/06
Tag:Amylase, Enzymcharakterisierung
Departments / faculties:Fachbereiche
Licence (German):License LogoCreative Commons - Namensnennung - Nicht kommerziell - Weitergabe unter gleichen Bedingungen

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