Real-Time Synchrotron Small-Angle X-ray Scattering Studies of Collagen Structure during Leather Processing

被引：25

作者：

Zhang, Yi ^{[1
]}

Ingham, Bridget ^{[2
]}

Cheong, Soshan ^{[3
]}

Ariotto, Nicholas ^{[3
]}

Tilley, Richard D. ^{[3
]}

Naffa, Rafea ^{[1
]}

Holmes, Geoff ^{[1
]}

Clarke, David J. ^{[2
]}

Prabakar, Sujay ^{[1
]}

机构：

[1] Leather & Shoe Res Assoc New Zealand, POB 8094, Palmerston North 4472, New Zealand

[2] Callaghan Innovat, POB 31310, Lower Hutt 5040, New Zealand

[3] Univ New South Wales, Elect Microscope Unit, Mark Wainwright Analyt Ctr, Sydney, NSW, Australia

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2018年 / 57卷 / 01期

关键词：

MECHANICAL-PROPERTIES; FIBRILLAR STRUCTURE; TANNING PROCESS; OXAZOLIDINE-E; I COLLAGEN; TISSUE; STABILIZATION; DIFFRACTION; STABILITY; CHROMIUM;

D O I：

10.1021/acs.iecr.7b03860

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The collagen structure in skins is significantly influenced by the cross-linking chemistry adopted during leather processing. We have developed an in situ technique to measure real-time collagen structure changes using synchrotron-based small-angle X-ray scattering (SAXS). Three common mineral tanning systems, basic chromium sulfate (BCS), zirconium sulfate (ZIR) and an aluminosilicate-based reagent (ALS) were used to stabilize collagen in ovine skin. Studying the molecular changes by in situ SAXS revealed a range of tanning mechanisms: a complex combination of covalent cross-linking, electrostatic interactions and hydrogen bonding by BCS, hydrogen bonding interactions by ZIR, and the formation of colloidal aggregates by ALS. These results unravel the mechanisms of producing leathers with different properties, explaining why ZIR produces denser leathers while ALS produces softer leathers compared to conventional BCS leathers. ZIR and ALS are environment-friendly alternatives to BCS, and understanding their mechanisms is important for a more sustainable future for the leather industry.

引用

页码：63 / 69

页数：7

共 30 条

[1]

[Anonymous], 2008, COLLAGEN STRUCTURE M

[2] Evaluation of a new environment friendly tanning process [J].

Bacardit, Anna ;

van der Burgh, Stefan ;

Armengol, Jordi ;

Olle, Luis .

JOURNAL OF CLEANER PRODUCTION, 2014, 65 :568-573

[3] Altered x-ray diffraction pattern is accompanied by a change in the mode of cross-link formation in lipodermatosclerosis [J].

Brinckmann, J ;

Acil, Y ;

Tronnier, M ;

Notbohm, H ;

Batge, B ;

Schmeller, W ;

Koch, MHJ ;

Muller, PK ;

Wolff, HH .

JOURNAL OF INVESTIGATIVE DERMATOLOGY, 1996, 107 (04) :589-592

[4] Collagen tissue engineering: Development of novel biomaterials and applications [J].

Cen, Lian ;

Liu, Wei ;

Cui, Lei ;

Zhang, Wenjie ;

Cao, Yilin .

PEDIATRIC RESEARCH, 2008, 63 (05) :492-496

[5] Effect of oxazolidine E on collagen fibril formation and stabilization of the collagen matrix [J].

Choudhury, Santanu Deb ;

Haverkamp, Richard G. ;

DasGupta, Samir ;

Norris, Gillian E. .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2007, 55 (17) :6813-6822

[6] Unravelling the mechanism of the interactions of oxazolidine A and E with collagens in ovine skin [J].

Choudhury, Santanu Deb ;

DasGupta, Samir ;

Norris, Gillian E. .

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2007, 40 (04) :351-361

[7]

Covington AD, 2009, TANNING CHEMISTRY: THE SCIENCE OF LEATHER, P1

[8] Modern tanning chemistry [J].

Covington, AD .

CHEMICAL SOCIETY REVIEWS, 1997, 26 (02) :111-126

[9]

DasGupta S., 1997, P 24 INT UN LEATH TE, P157

[10] Effect of zirconium(IV) complexes on the thermal and enzymatic stability of type I collagen [J].

Fathima, NN ;

Madhan, B ;

Rao, JR ;

Nair, BU .

JOURNAL OF INORGANIC BIOCHEMISTRY, 2003, 95 (01) :47-54

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