Protein Primary Level Degradation in Wool
A significant contributor to value-loss in wool and wool products is the degradation of its constituent proteins. Protein damage causes discoloration and adversely affects fibre attributes such as strength and elasticity. At a primary level, a large component of this protein damage occurs via the modification of amino acid residue side chains. The study of the oxidative modification of wool (e.g. via hydrothermal and sunlight damage) has revealed a variety of residue modifications associated with wool damage. Sulfur-containing crosslinks have been found to both form and break during damage, leading to new configurations that may influence the mechanical properties of fibres. The degradation products of susceptible aromatic residues such as tyrosine, tryptophan and phenylalanine have been found to include coloured products that contribute to fabric yellowing. Here, the formation and discovery of this form of wool degradation is reviewed, along with exciting new developments in mass spectrometry-based characterisation, profiling and quantitation techniques.
wool damage photodegradation chemistry quantitation
GROSVENOR Anita MORTON Jim DYER Jolon
Protein and Structure, Lincoln Research Centre, AgResearch Ltd, New Zealand Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University,N
国际会议
The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)
上海
英文
976-979
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）