84—PEPTIDYL SHIFT DURING WOOL CARBONIZING

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Abstract
Some chemical data on loose wool commercially carbonized were collected in the following steps of production : raw, scoured, baked, rinsed, neutralized, bleached. Part of the baked wool was additionally treated with buffer solutions of various pH values. Carbonization causes a specific increase in the number of serine and threonine amino end-groups. Neutralization of the baked wool up to pH 8·6 effects a recovery of serine peptide bonds of 80% and, in the case of threonine, of about 70%. It is recommended that carbonized wool should be completely neutralized and brought to a slightly alkaline condition. Such a product compares, as far as chemical properties are concerned, favourably with partly neutralized wool.

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