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The Effects of Peptide-Precipitating Lignosulphonic Acids on the in Vitro Proteolytic Activity of Some Animal and Microbial Proteinases

Virkningen av peptidpresipiterende ligninsulfonsyrer in vitro på den proteolytiske aktivitet av noen animalske og mikrobielle proteinaser

Abstract

It has been shown that lignosulphonic acids have an inhibitory effect on various animal and microbial proteinases. The activity of 0.005 mg swine trypsin, 0.007 mg bovine a-chymotrypsin and the proteinase activity in 0.004 ml of jejunum content from pig is inhibited 70–75 % by 0.25–0.30 ml of a solution containing 250 diffusion units of peptide-precipitating lignosulphonic acids per 50 µl.

The inhibitory effect is discussed in relation to the use of animal foodstuffs containing lignosulphonic acids, and in relation to biochemical reactions taking place in ecosystems in which lignosulphonic acids comprise an important part.

Sammendrag

Det er vist at ligninsulfonsyrer har hemmende virkning på forskjellige animalske og mikrobielle proteinaser. Aktiviteten av 0,005 mg svinetrypsin, 0,007 mg a-chymotrypsin fra storfe og proteinaseaktiviteten i 0,004 ml jejunuminnhold fra gris kan inhiberes 70–75 % med 0,25–0,30 ml av en løsning som inneholder 250 diffusjonsenheter peptidpresipiterende ligninsulfonsyrer per 50 µl.

En har diskutert den hemmende virkningen i forhold til bruken av visse forstoffer som inneholder ligninsulfonsyrer og i forhold til biokjemiske reaksjoner som finner sted i økosystemer hvor ligninsulfonsyrer utgjør en viktig del.

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Næss, B., Fossum, K. & Sandvik, O. The Effects of Peptide-Precipitating Lignosulphonic Acids on the in Vitro Proteolytic Activity of Some Animal and Microbial Proteinases. Acta Vet Scand 14, 107–117 (1973). https://doi.org/10.1186/BF03547414

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