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Related Experiment Videos

A method using solubility to predict dry matter digestibility of cellulosic materials.

L C Chiang, C E Dunlap

    Biotechnology and Bioengineering
    |January 1, 1977
    PubMed
    Summary

    A new chemical method predicts cellulose digestibility by measuring holocellulose solubility. This rapid technique correlates well with in vitro digestion methods, offering a simple lab alternative.

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    Area of Science:

    • Agricultural and Food Chemistry
    • Biochemistry
    • Analytical Chemistry

    Background:

    • Cellulose digestibility is crucial for animal nutrition and biofuel production.
    • Accurate prediction of dry matter digestibility in cellulosic materials is essential.
    • Existing methods for assessing cellulose digestibility can be time-consuming or require specialized equipment.

    Purpose of the Study:

    • To develop a rapid laboratory method for predicting the dry matter digestibility of cellulose-containing samples.
    • To establish a correlation between a novel chemical solubility procedure and established in vitro digestion assays.
    • To provide a simple and accessible method for analyzing various cellulosic materials.

    Main Methods:

    • A chemical procedure utilizing dimethyl sulfoxide and paraformaldehyde to solubilize holocellulose samples.

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  • Measurement of the amount of dry matter solubilized by the chemical procedure.
  • Comparison of solubilized dry matter with results from anaerobic, in vitro, rumen fluid digestion.
  • Assessment of correlation with digestibility measured by aerobic Cellulomonas, sp. bacteria.

    • Main Results:

    • The amount of dry matter solubilized showed a close correlation with anaerobic in vitro rumen fluid digestion.
    • Solubilization closely correlated with digestibility determined by aerobic Cellulomonas, sp. bacteria.
    • Solvent quantity and dissolving time had minimal impact on solubility within a broad range.

    Conclusions:

    • The developed chemical procedure offers a rapid and reliable laboratory method for predicting cellulose dry matter digestibility.
    • The method is suitable for diverse cellulosic materials and requires only basic laboratory equipment.
    • This technique provides a valuable alternative for assessing forage and biomass digestibility.