Joanna Karbowska-Berent, Alicja Strzelczyk,
The role of streptomycetes in the biodeterioration of historic parchment

W książce przedstawiono wyniki badań prowadzonych w Zakładzie Konserwacji Papieru i Skóry UMK w Toruniu. Badaniom poddano zabytkowe pergaminy w celu wykrycia wpływu promieniowców z rodzaju streptomyces na ich zniszczenia. Szczegółowo omówiono materiały i metody wykorzystywane w badaniach. Dołączono obszerne streszczenie w języku polskim.

CONTENTS
INTRODUCTION

1. A REVIEW OF LITERATURE (Parchment against the Background of Other Writing Materials * The Histological Structure of Mammalian Skin * The Parchment Manufacture * Microbial Deterioration of Parchment * Collagenolytic Microorganisms * Characteristics of the Genus Streptomyces)

2. THE AIMS OF THE STUDIES

3. MATERIALS AND METHODS (The Properties of Parchment Used * The Isolation of the Streptomyces Strains from Parchment Overgrown with Microorganisms * The Abilities of the Strains Isolated to Degrade Gelatine, Collagen, and Parchment * The Investigation of Collagenolytic Activity of Streptomyces anulatus P7)

4. RESULTS (The Identification of the Strains Isolated * The Degradation of Gelatine and Reconstituted Collagen Gel by the Strains Studied * The Deterioration of Parchment by the Strains Studied * The Electrophoresis of the Type I Collagen Degradation Products * Collagenolytic Activity of Streptomyces anulatus P7)

5. DISCUSSION (Problems Dealing with the Identification of the Streptomycete Strains * Mechanisms of Parchment Deterioration by Streptomycetes * Collagenolytic enzyme(s) of S. anulatus P7 in comparison with other microbial collagenases * The Staining of Parchment by Streptomycetes)

6. CONCLUSIONS
7. REFERENCES
Zniszczenie zabytkowych pergaminow przez promieniowce z rodzaju Streptomyces. Streszczenie