Journal of Leather Science and Engineering最新文献_第5页

Synergistically enhancing hydrogen bonding, hydrophobic interaction and electrostatic association of collagen fiber to flavonoid aglycones for their effective separation by polyethyleneimine modification 通过聚乙烯亚胺改性协同增强胶原纤维与黄酮苷的氢键、疏水作用和静电结合，从而有效分离黄酮苷

Journal of Leather Science and Engineering Pub Date : 2023-10-16 DOI: 10.1186/s42825-023-00138-2

Qixian Zhang, Rui Wang, Bi Shi

{"title":"Synergistically enhancing hydrogen bonding, hydrophobic interaction and electrostatic association of collagen fiber to flavonoid aglycones for their effective separation by polyethyleneimine modification","authors":"Qixian Zhang, Rui Wang, Bi Shi","doi":"10.1186/s42825-023-00138-2","DOIUrl":"10.1186/s42825-023-00138-2","url":null,"abstract":"<div><p>Compared with flavonoid glycosides, flavonoid aglycones are difficult to be separated since they have less hydroxyls. Collagen fiber (CF), a natural polymer, was once used as packing material for separation of kaempferol and quercetin (the typical flavonoid aglycones) after crosslinking by glutaraldehyde mainly based on hydrogen bonding and hydrophobic interaction in column length-diameter ratio of 60:1. Hydrophobic modification by grafting alkyl chains was then employed to enhance the hydrophobic interaction between CF and flavonoid aglycones, which can improve the separation efficiency and decrease column length-diameter ratio to 19:1. In order to further improve the adsorption capacity and separation efficiency, the strategy of simultaneously grafting hydrophobic alkyl chains (–CH<sub>2</sub>–CH<sub>2</sub>–) and alkali groups (–NH<sub>2</sub>) was adopted in this work to enhance hydrophobic interaction, hydrogen bonding and electrostatic association to flavonoid aglycones at the same time through grafting polyethyleneimine (PEI). PEI modified CF (PEI-CF) maintained the fiber structure of CF, and had higher adsorption extent and rate to flavonoid aglycones through the enhanced synergetic effect of hydrophobic interaction, hydrogen bonding and electrostatic association. As a result, PEI-CF presented a satisfactory column separation efficiency for kaempferol and quercetin even the length-diameter ratio of column was decreased to 11:1, which was much better than previously developed glutaradehyde-crosslinked collagen fiber and isobutyl-grafted collagen fiber, as well as commonly used polyamide and Sephadex LH-20.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00138-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-functional epoxides cross-linked collagen sponges for tissue engineering scaffolds 组织工程支架用多功能环氧化合物交联胶原蛋白海绵

Journal of Leather Science and Engineering Pub Date : 2023-10-12 DOI: 10.1186/s42825-023-00137-3

Yuanzhi Zhang, Changkai Yang, Min Gu, Xiaoxia Zhang, Xueqing Zhang, Guoying Li

{"title":"Multi-functional epoxides cross-linked collagen sponges for tissue engineering scaffolds","authors":"Yuanzhi Zhang, Changkai Yang, Min Gu, Xiaoxia Zhang, Xueqing Zhang, Guoying Li","doi":"10.1186/s42825-023-00137-3","DOIUrl":"10.1186/s42825-023-00137-3","url":null,"abstract":"<div><p>With the efficient cross-linking abilities and the flexible regulation abilities to the performances of cross-linked products, the multi-functional aliphatic epoxides were once widely used to cross-link the collagen-based materials in the last century. In present work, the multi-functional epoxides were used to construct and cross-link collagen sponges for tissue engineering scaffolds, which was hoped to board the theoretical system of epoxides and explore their potentials for modern applications. The bi- to tetra-functional epoxides were used to cross-link collagen solutions and establish the gel-like precursors, then using freeze-drying to form the final sponges. The SEM observed that the sponges had shown regular porous structures with a wide range of pore sizes from 160 to 440 μm. The sponges had presented the resistance to enzymatic degradation, shape-remaining ability, and reversible compressibility in aqueous environments, which all could be regulated through the functionalities of epoxides. The regulation abilities of multi-functional epoxides on the performances of sponges had been mainly achieved through the cross-linking degrees that the higher functionality of epoxides would bring higher cross-linking degree. Such higher cross-linking degrees could enhance the elastic behaviors of gel-like precursors, and improve the compressive strengths and thermal stabilities of sponges. Nevertheless, the multi-functional epoxides had barely affected the safety of collagen sponges at the cellular level according to the results of CCK8 assay and the SEM and CLSM images of L929 fibroblasts cultured on the cross-sections of sponges.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00137-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Composite nanofiltration membrane with tannic acid coordinated collagen fibers for enhanced molecule separation 单宁酸配合胶原纤维复合纳滤膜增强分子分离

Journal of Leather Science and Engineering Pub Date : 2023-10-11 DOI: 10.1186/s42825-023-00133-7

Yinshan Xie, Zihao Ge, Xin Li, Yi Wang, Fei Liu, Jian Li

{"title":"Composite nanofiltration membrane with tannic acid coordinated collagen fibers for enhanced molecule separation","authors":"Yinshan Xie, Zihao Ge, Xin Li, Yi Wang, Fei Liu, Jian Li","doi":"10.1186/s42825-023-00133-7","DOIUrl":"10.1186/s42825-023-00133-7","url":null,"abstract":"<div><p>Biomass-based membranes have attracted increasing attentions due to their cheap and sustainable advantages. In this work, a novel thin-film composite (TFC) nanofiltration (NF) membrane was fabricated through a facial interfacial polymerization (IP) process by initiate the crosslinking reaction between collagen fibers (CFs) and tannic acid (TA). The increased TA concentrations endowed the TFC membrane with a higher crosslinking degree, a thicker active layer and a rougher top surface. At optimized condition with 0.60 mg TA decoration, the TFC-3 membrane exhibited a high water permeability of 23.49 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup> with high rejections above 98.0% for congo red, reactive blue 19, coomassie blue G-250, and methyl blue. Furthermore, the membrane preserved remarkable salt retentions (93.3% for Na<sub>2</sub>SO<sub>4</sub>, 83.4% for MgSO<sub>4</sub>, 36.2% for MgCl<sub>2</sub>, and 26.4% for NaCl) and satisfying operation stability. This facial fabrication method offered a new insight to employ biomass for molecular precise separation.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00133-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of bactericide–protease interactions on the protease-assisted soaking performance 杀菌剂-蛋白酶相互作用对蛋白酶辅助浸泡性能的影响

Journal of Leather Science and Engineering Pub Date : 2023-09-27 DOI: 10.1186/s42825-023-00135-5

Hao Liu, Yahang Pan, Bi Shi, Yunhang Zeng

{"title":"Effects of bactericide–protease interactions on the protease-assisted soaking performance","authors":"Hao Liu, Yahang Pan, Bi Shi, Yunhang Zeng","doi":"10.1186/s42825-023-00135-5","DOIUrl":"10.1186/s42825-023-00135-5","url":null,"abstract":"<div><p>Protease-assisted soaking has received increasing attention in recent years. However, few reports have elaborated on the effect of bactericides, which are used to protect raw hides from microbial damage in the soaking process, on the performance of protease-assisted soaking. Here we investigate the effects of three bactericides, namely, 2-methyl-4-isothiazolin-3-one (MIT), sodium propyl 4-hydroxybenzoate (SPHB) and cetyl trimethyl ammonium bromide (CTAB), on the catalytic activity of protease. MIT and SPHB have little effect on the proteolytic activity, whilst CTAB has a negative effect. Fluorescence spectroscopy, synchronous fluorescence spectroscopy, molecular docking and molecular dynamics simulation were used to analyse the bactericide–protease interaction. The data reveal that MIT and SPHB are bound to the non-catalytic sites of protease, whilst CTAB affects the catalytic triad of protease. Furthermore, the protease and bactericides were used alone, simultaneously and sequentially in the soaking process, and their soaking performances were evaluated. The evaluation shows that the use of protease increases the microorganisms in the soaking float, and MIT exhibits the best bactericidal effect. The simultaneous use of protease and MIT effectively inhibits bacteria and scarcely affects the removal of unstructured proteins from hides and the attack on epidermis by protease. These findings contribute to a better understanding of the scientific use of protease with other auxiliaries in soaking.</p><h3>Graphical Abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00135-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developments for collagen hydrolysates as a multifunctional antioxidant in biomedical domains 胶原蛋白水解物作为多功能抗氧化剂在生物医学领域的研究进展

Journal of Leather Science and Engineering Pub Date : 2023-09-26 DOI: 10.1186/s42825-023-00131-9

Guiya Deng, Ke Huang, Xianchao Jiang, Kun Wang, Zihao Song, Yuchen Su, Chengming Li, Shuai Zhang, Shiqi Wang, Yaqin Huang

{"title":"Developments for collagen hydrolysates as a multifunctional antioxidant in biomedical domains","authors":"Guiya Deng, Ke Huang, Xianchao Jiang, Kun Wang, Zihao Song, Yuchen Su, Chengming Li, Shuai Zhang, Shiqi Wang, Yaqin Huang","doi":"10.1186/s42825-023-00131-9","DOIUrl":"10.1186/s42825-023-00131-9","url":null,"abstract":"<div><p>Antioxidant collagen hydrolysates refers to the peptides mixture with antioxidant properties identified from hydrolyzed collagen. Due to its specific structural, biological and physicochemical properties, collagen hydrolysates have been explored as a multifunctional antioxidant in the biomedical field. In this review, we summarize recent advances in antioxidant collagen hydrolysates development. Initially, the preparation process of antioxidant collagen hydrolysates is introduced, including the production and separation methods. Then the effects and the mechanisms of amino acid composition and collagen peptide structure on the antioxidant activity of collagen hydrolysates are reviewed. Finally, the applications of antioxidant collagen hydrolysates in biomedical domains are summarized, with critical discussions about the advantages, current limitations and challenges to be resolved in the future.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00131-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High performance strain sensor based on leather activated by micro-cracking conductive layer 基于微裂导电层激活皮革的高性能应变传感器

Journal of Leather Science and Engineering Pub Date : 2023-09-22 DOI: 10.1186/s42825-023-00134-6

Jianzhong Ma, Zhijie Cheng, Sha Tan, Tian Zheng, Yan Zong

{"title":"High performance strain sensor based on leather activated by micro-cracking conductive layer","authors":"Jianzhong Ma, Zhijie Cheng, Sha Tan, Tian Zheng, Yan Zong","doi":"10.1186/s42825-023-00134-6","DOIUrl":"10.1186/s42825-023-00134-6","url":null,"abstract":"<div><p>Flexible strain sensors are capable to detect external force induced strain change owing to their unique ability to convert deformation into electrical signals. Generally, micro/nano patterning of conductive layer in strain sensor is an effective method to improve its sensitivity, however the sophisticated manipulation process is limited only in laboratory scale. In this report, a simple and scalable fabrication strategy was used to create micro-cracking conductive layer as an alternative patterning method to achieve high performance of strain sensor. In details, the sensor was fabricated using leather as the substrate to filtrated acidified multi-walled carbon nanotubes (a-MWCNTs)/layered double hydroxides (LDHs) suspension. During stretching process, micro-cracking structure emerged on the percolated a-MWCNTs/LDHs layer, causing a rise up of resistance according to increasing strain and generated a detectable electrical signal. The prepared sensor had a large detecting range (60%), high sensitivity (GF of 7238.92 at strain 30–60%), fast response (tensile response time of 270 ms), good stability and repeatability. The sensor also inherited the advantages of leather, such as biodegradability and good air permeability, and the introduction of a-MWCNTs/LDHs further enhanced its fire retardancy properties. These features ensured the sensor as an eco-friendly, comfortable and safe electronic device for human motion detection.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00134-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research recap of membrane technology for tannery wastewater treatment: a review 膜技术在制革废水处理中的研究进展

Journal of Leather Science and Engineering Pub Date : 2023-09-20 DOI: 10.1186/s42825-023-00132-8

Fu Yang, Xing-Bao Wang, Yuanyuan Shan, Chongde Wu, Rongqing Zhou, Nicolas Hengl, Frederic Pignon, Yao Jin

{"title":"Research recap of membrane technology for tannery wastewater treatment: a review","authors":"Fu Yang, Xing-Bao Wang, Yuanyuan Shan, Chongde Wu, Rongqing Zhou, Nicolas Hengl, Frederic Pignon, Yao Jin","doi":"10.1186/s42825-023-00132-8","DOIUrl":"10.1186/s42825-023-00132-8","url":null,"abstract":"<div><p>As a highly complex aqueous effluent, tannery wastewater from leather industry should be treated appropriately before discharging into the environment. Membrane technology has been shown to be a promising approach for tannery wastewater treatment as it may achieve “Zero Liquid Discharge (ZLD)”. This work, as the state-of-the-art, attempts to review the world-wide research trends of membrane technologies, the technical recapitulation and recent advances of such technology for tannery wastewater treatment. Generally, manufacture membrane, membrane-based integrated process, MBR, NF, UF and RO are the hotspots in this field. Details of different membrane technologies configured for tannery wastewater treatment, such as membrane materials, scale, membrane modules, operating conditions and removal efficiency of pollutants, are also summarized. It should be noted that membrane fouling is still a major challenge in the membrane technology during tannery wastewater treatment. Therefore, process coupling, either within diverse membrane technologies or between membrane and non-membrane technologies, is considered as a promising alternative to treat the leather tannery wastewater in the future.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00132-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134797284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D bioprinting of collagen-based materials for oral medicine 口腔医学用胶原基材料的3D生物打印

Journal of Leather Science and Engineering Pub Date : 2023-08-31 DOI: 10.1186/s42825-023-00129-3

Bosen Yang, Hai Liu, Linli Jiang, Yiwei Zeng, Yiyuan Han, Chuanlu Sha, Xin Xie, Hui Li, Jiajing Zhou, Wei Lin

{"title":"3D bioprinting of collagen-based materials for oral medicine","authors":"Bosen Yang, Hai Liu, Linli Jiang, Yiwei Zeng, Yiyuan Han, Chuanlu Sha, Xin Xie, Hui Li, Jiajing Zhou, Wei Lin","doi":"10.1186/s42825-023-00129-3","DOIUrl":"10.1186/s42825-023-00129-3","url":null,"abstract":"<div><p>Oral diseases have emerged as one of the leading public health challenges globally. Although the existing clinical modalities for restoration of dental tissue loss and craniomaxillofacial injuries can achieve satisfactory therapeutic results, they cannot fully restore the original complex anatomical structure and physiological function of the tissue. 3D printing of biological tissues has gained growing interest in the field of oral medicine with the ability to control the bioink component and printing structure for spatially heterogeneous repairing constructs, holding enormous promise for the precise treatment of oral disease. Particularly, collagen-based materials have been recognized as promising biogenic bioinks for the regeneration of several tissues with high cell-activating and biocompatible properties. In this review, we summarize 3D printing methods for collagen-based biomaterials and their mechanisms. Additionally, we highlight the animal sources of collagen and their characteristics, as well as the methods of collagen extraction. Furthermore, this review provides an overview of the 3D bioprinting technology for the regeneration of the pulpal nerve and blood vessels, cartilage, and periodontal tissue. We envision that this technique opens up immense opportunities over the conventional ones, with high replicability and customized function, which can ultimately promote effective oral tissue regeneration.</p><h3>Graphical Abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00129-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134060041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combination tanning mechanism inspired environmentally benign catalyst for efficient degradation of tetracycline 组合鞣制机理启发的环境良性催化剂高效降解四环素

Journal of Leather Science and Engineering Pub Date : 2023-08-23 DOI: 10.1186/s42825-023-00130-w

Meng Xiao, Shuangmei Liu, Wenqian Qi, Yu Peng, Qingyu Yan, Hui Mao

{"title":"Combination tanning mechanism inspired environmentally benign catalyst for efficient degradation of tetracycline","authors":"Meng Xiao, Shuangmei Liu, Wenqian Qi, Yu Peng, Qingyu Yan, Hui Mao","doi":"10.1186/s42825-023-00130-w","DOIUrl":"10.1186/s42825-023-00130-w","url":null,"abstract":"<div><p>The utilization of chelation reaction between metals and tannins is a common tanning method in leather chemistry. Herein, a novel combination tanning mechanism inspired environmentally benign catalyst (CMBT-Fe<sup>0</sup>) was synthesized by immobilizing Fe nanoparticles onto bayberry tannin (BT) grafted chitosan microfibers (CM). The obtained catalyst featured a well-defined microfibrous structure, on which Fe<sup>0</sup> nanoparticles were highly dispersed to exhibit exceptional catalytic activity for the degradation of tetracycline (TC). The catalytic activity of CMBT-Fe<sup>0</sup> was 1.72 times higher than that of the commercial Fe<sup>0</sup> nanoparticles without immobilization, with 95.03% of TC degraded within 90.0 min. The CMBT-Fe<sup>0</sup> catalysts were recycled 6 times, with the removal rate of TC maintained at 82.56%. Furthermore, a possible mechanism responsible for the catalytic removal of TC was provided by analyzing the catalytic degradation products via liquid chromatography-mass spectrometry. Therefore, our investigation successfully developed efficient catalysts to address the concerned environmental issue of antibiotic pollution.</p><h3>Graphical Abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00130-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129489855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tannin characterization and sourcing in historical leathers through FTIR spectroscopy and PCA analysis 通过FTIR光谱和PCA分析分析历史皮革的单宁特性和来源

Journal of Leather Science and Engineering Pub Date : 2023-07-10 DOI: 10.1186/s42825-023-00128-4

Alireza Koochakzaei, Mohammadamin Sabaghian

{"title":"Tannin characterization and sourcing in historical leathers through FTIR spectroscopy and PCA analysis","authors":"Alireza Koochakzaei, Mohammadamin Sabaghian","doi":"10.1186/s42825-023-00128-4","DOIUrl":"10.1186/s42825-023-00128-4","url":null,"abstract":"<div><p>This study aimed to identify and classify the type of plants used for tanning historical leathers using cost-effective Fourier transform infrared (FTIR) spectroscopy. The investigation was carried out on five plants (oak bark, sumac, valonia, tara, and gallnut) and four historical leather samples from book bindings dating back to the Qajar period. Tannin extraction from both plants and leathers was performed using acetone–water solvent, and the samples were then subjected to FTIR spectroscopy. Pre-processing of the spectra included baseline correction, smoothing, and normalization. Principal component analysis (PCA) was used to identify the source of tannins based on FTIR results. FTIR was found to provide a good separation of condensed tannins from hydrolysable ones. However, PCA analysis allowed for the separation and identification of the type of plant used for tannin extraction. The examination of historical leather samples revealed that the primary classification based on the type of tannin is possible, but accurate identification faces challenges due to structural changes and degradation over time.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-023-00128-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4420245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1