THE STUDY OF CHEMICAL AND TECHNOLOGICAL PROPERTIES OF THE ETHANOL EXTRACT OF PINE OBTAINED FROM DEBARKING AND ITS POSSIBLE APPLICATION IN THE LEATHER AND FUR INDUSTRY

  • Наталья Викторовна Гончарова East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013 Email: natvic@list.ru
  • Наталья Владимировна Сячинова East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013 Email: c-h-v@mail.ru
  • Екатерина Александровна Думнова East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013 Email: natvic@list.ru
DOI_disc_logo https://doi.org/10.14258/jcprm.1402243
Keywords: The products of dissolution of collagen (PDC), differential scanning calorimetry, extract of pine

Abstract

This paper investigated the effect of ethanol on the quality of the extract of pine produced from low-grade raw materials and their processing properties. We studied the relationship between views of the extractant and the degree of modification of collagen - the main skins' protein by simulating the process of tanning. The products of dissolution of collagen (PDC) treated with ethyl extract of pine were used as the model. The degree of modification was determined by differential scanning calorimetry. The investigations revealed that the alcohol extract of pine features a large tar content and a high degree of purity (~92,6%). Interaction between extractives and collagen goes mainly on amide nitrogen and the side carboxyl groups, with ε-amino groups and phenolic hydroxyl groups - that have probably been blocked by hydrogen bondsare – are being released. Heat resistance of coats derived from the tanned PDC is high enough, it can be concluded that there may be the possible use of alcohol extracts of pine in the leather and fur industry as a tanning agent.

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Author Biographies

Наталья Викторовна Гончарова, East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013
доцент кафедры «Технология кожи, меха. Водные ресурсы и товароведение», кандидат технических наук, тел.: (3012)41-72-22
Наталья Владимировна Сячинова, East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013
старший преподаватель кафедры неорганической и аналитической химии, кандидат химических наук
Екатерина Александровна Думнова, East-Siberian State University of Technology and Management, ул. Kliuchevskaia st., 40v, Ulan-Ude, 670013
студентка

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Published
2014-06-10
How to Cite
1. Гончарова Н. В., Сячинова Н. В., Думнова Е. А. THE STUDY OF CHEMICAL AND TECHNOLOGICAL PROPERTIES OF THE ETHANOL EXTRACT OF PINE OBTAINED FROM DEBARKING AND ITS POSSIBLE APPLICATION IN THE LEATHER AND FUR INDUSTRY // chemistry of plant raw material, 2014. № 2. P. 243-247. URL: http://journal.asu.ru/cw/article/view/jcprm.1402243.
Issue
No 2 (2014)
Section
Application

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