Related Experiment Video

Updated: Jun 24, 2026

Collecting Saliva and Measuring Salivary Cortisol and Alpha-amylase in Frail Community Residing Older Adults via Family Caregivers
08:25

Collecting Saliva and Measuring Salivary Cortisol and Alpha-amylase in Frail Community Residing Older Adults via Family Caregivers

Published on: December 18, 2013

[Express method to estimate alpha-amilase activity in specialized food products and dietary supplements]

O A Virovets, I S Zilova

    Voprosy Pitaniia
    |April 8, 2009
    PubMed

    More Related Videos

    Measuring Biophysical and Psychological Stress Levels Following Visitation to Three Locations with Differing Levels of Nature05:33

    Measuring Biophysical and Psychological Stress Levels Following Visitation to Three Locations with Differing Levels of Nature

    Published on: June 19, 2019

    Sigma's Non-specific Protease Activity Assay - Casein as a Substrate11:37

    Sigma's Non-specific Protease Activity Assay - Casein as a Substrate

    Published on: September 17, 2008

    Related Concept Videos

    Enzyme-Linked Immunosorbent Assay01:33

    Enzyme-Linked Immunosorbent Assay

    In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
    There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen.  Enzyme-substrate reaction allows the antigen to be visualized or quantified.