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Related Experiment Videos

Amylase in human milk.

T Lindberg, G Skude

    Pediatrics
    |August 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Human milk contains salivary-type amylase, particularly high in colostrum. This enzyme remains active in infant digestion, aiding starch breakdown in breastfed infants.

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    Area of Science:

    • Biochemistry
    • Human Physiology
    • Pediatric Nutrition

    Background:

    • Human milk composition changes throughout lactation.
    • Infant digestion capabilities are crucial for nutrient absorption.
    • Amylase is a key enzyme in carbohydrate digestion.

    Purpose of the Study:

    • To quantify amylase activity and isoenzyme patterns in human milk across lactation stages.
    • To compare human milk amylase levels with duodenal juice amylase in infants.
    • To assess the potential role of human milk amylase in infant starch digestion.

    Main Methods:

    • Amylase activity assays on human milk samples from different lactation phases.
    • Isoenzyme pattern analysis of human milk amylase.
    • Comparative analysis with amylase activity in infant duodenal juice.

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    Main Results:

    • Amylase activity is highest in colostrum, decreasing by day 90 postpartum.
    • Human milk contains higher amylase levels than infant duodenal juice (1-6 months).
    • Human milk amylase is salivary in type and remains active at pH 5.3.

    Conclusions:

    • Human milk amylase is primarily salivary in type.
    • Significant amylase activity persists in human milk, especially early postpartum.
    • Human milk amylase likely contributes to starch digestion in breastfed infants.