Internal lipids of felted, yellowed and pathologically thin wool

The keratin fibers contain small amount of the internal lipids which are in free state or bound with fiber proteins via tioester of 18-methyleicosanoic acid. Today the origin of these lipids, their composition and functional properties are still not found. Therefore, our objective was to examine the...

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Main Authors: V. M. Tkachuk, V. V. Havrylyak, P. V. Stapay, H. M. Sedilo
Format: Article
Language:English
Published: National Academy of Sciences of Ukraine, Palladin Institute of Biochemistry 2014-02-01
Series:The Ukrainian Biochemical Journal
Subjects:
Online Access:http://ukrbiochemjournal.org/wp-content/uploads/2015/06/Tkachuk_1_14.pdf
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author V. M. Tkachuk
V. V. Havrylyak
P. V. Stapay
H. M. Sedilo
author_facet V. M. Tkachuk
V. V. Havrylyak
P. V. Stapay
H. M. Sedilo
author_sort V. M. Tkachuk
collection DOAJ
description The keratin fibers contain small amount of the internal lipids which are in free state or bound with fiber proteins via tioester of 18-methyleicosanoic acid. Today the origin of these lipids, their composition and functional properties are still not found. Therefore, our objective was to examine the content and composition of internal lipids in sheep’s wool with different defects. We observed that regardless of the type of fibers defect there are significant changes especially in the quality composition of the internal lipids, although the total content of free and covalently bound lipids in all cases is practically identical. Notably, both free and covalently bound lipids composition of felted and simultaneously felted and yellowed wool is characterized by changes in contents mainly of free fatty acids and ceramides whereas abnormal thinning of fibers is accompanied only by a decrease of sulfolipids.
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spelling doaj.art-e9ac2f8496274c8494c2061195aa6d312023-12-03T06:27:16ZengNational Academy of Sciences of Ukraine, Palladin Institute of BiochemistryThe Ukrainian Biochemical Journal2409-49432413-50032014-02-0186113113810.15407/ubj86.01.131Internal lipids of felted, yellowed and pathologically thin woolV. M. Tkachuk0V. V. Havrylyak1P. V. Stapay2H. M. Sedilo3Institute of Animal Biology, NAAS of Ukraine, LvivInstitute of Animal Biology, NAAS of Ukraine, LvivInstitute of Animal Biology, NAAS of Ukraine, LvivInstitute of Agriculture of Carpathian region, Obroshyno, Lviv region, UkraineThe keratin fibers contain small amount of the internal lipids which are in free state or bound with fiber proteins via tioester of 18-methyleicosanoic acid. Today the origin of these lipids, their composition and functional properties are still not found. Therefore, our objective was to examine the content and composition of internal lipids in sheep’s wool with different defects. We observed that regardless of the type of fibers defect there are significant changes especially in the quality composition of the internal lipids, although the total content of free and covalently bound lipids in all cases is practically identical. Notably, both free and covalently bound lipids composition of felted and simultaneously felted and yellowed wool is characterized by changes in contents mainly of free fatty acids and ceramides whereas abnormal thinning of fibers is accompanied only by a decrease of sulfolipids.http://ukrbiochemjournal.org/wp-content/uploads/2015/06/Tkachuk_1_14.pdffeltingfree and bound internal lipidsthinningwool fiberyellowing
spellingShingle V. M. Tkachuk
V. V. Havrylyak
P. V. Stapay
H. M. Sedilo
Internal lipids of felted, yellowed and pathologically thin wool
The Ukrainian Biochemical Journal
felting
free and bound internal lipids
thinning
wool fiber
yellowing
title Internal lipids of felted, yellowed and pathologically thin wool
title_full Internal lipids of felted, yellowed and pathologically thin wool
title_fullStr Internal lipids of felted, yellowed and pathologically thin wool
title_full_unstemmed Internal lipids of felted, yellowed and pathologically thin wool
title_short Internal lipids of felted, yellowed and pathologically thin wool
title_sort internal lipids of felted yellowed and pathologically thin wool
topic felting
free and bound internal lipids
thinning
wool fiber
yellowing
url http://ukrbiochemjournal.org/wp-content/uploads/2015/06/Tkachuk_1_14.pdf
work_keys_str_mv AT vmtkachuk internallipidsoffeltedyellowedandpathologicallythinwool
AT vvhavrylyak internallipidsoffeltedyellowedandpathologicallythinwool
AT pvstapay internallipidsoffeltedyellowedandpathologicallythinwool
AT hmsedilo internallipidsoffeltedyellowedandpathologicallythinwool