当前位置：
X-MOL 学术
›
Anal. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Buyid Silk and the Tale of Bibi Shahrbanu: Identification of Biomarkers of Artificial Aging (Forgery) of Silk
Analytical Chemistry ( IF 6.7 ) Pub Date : 2017-09-19 00:00:00 , DOI: 10.1021/acs.analchem.7b02854 Mehdi Moini 1 , Christopher M. Rollman 1
Analytical Chemistry ( IF 6.7 ) Pub Date : 2017-09-19 00:00:00 , DOI: 10.1021/acs.analchem.7b02854 Mehdi Moini 1 , Christopher M. Rollman 1
Affiliation
|
Buyid silk forgery is one of the most famous silk forgeries in the world. In 1924–1925, excavation of the Bibi Shahrbanu site in Iran unearthed several silk textiles. The silks were thought to be of the Buyid period (934–1062 BCE) of the Persian Empire and have since been known as the “Buyid silks”. In the 1930s, more silk appeared and was reported as being from the Buyid period as well. Controversy over the authenticity of these silks escalated after the purchase of the silks by museums throughout the world. Extensive investigations of several of these silks have been conducted over the years with respect to iconography, weaving patterns, dyes/mordant, style, and even radiocarbon dating. It was found that most of the silks are not from Buyid period. To test the authenticity of these silk fabrics, the recently developed silk dating technique using amino acid racemization (AAR) in conjunction with capillary electrophoresis mass spectrometry was applied to 13 Buyid silk specimens from the Textile Museum collections. Among these silk specimens, the AAR ratios of only one specimen were consistent with authentic silk fabrics collected from various museums. In addition, the aspartic acid racemization ratio of this specimen was also consistent with its 14C dating. The other “Buyid silks” showed excessive levels of amino acid racemization not only for aspartic acid, but also for phenylalanine and tyrosine, inconsistent with racemization rates of these amino acids in authentic historical silk fabrics. Treatment of modern silk with a base at different pH and temperature reproduced the AAR pattern of the Buyid silks, implying that chemical treatment with a base at relatively high temperatures was perhaps the method used to artificially age these fabrics. The results imply that the racemization ratios of aspartic acid, phenylalanine, and tyrosine can be used as biomarkers for identification of naturally versus artificially aged silk.
中文翻译：
布义德丝绸和Bibi Shahrbanu的故事：丝绸的人工老化（伪造）生物标志物的鉴定
布依德丝绸伪造品是世界上最著名的丝绸伪造品之一。在1924年至1925年，对伊朗Bibi Shahrbanu厂址的发掘发掘了几种丝绸纺织品。这种丝绸被认为是波斯帝国的布依德时期（公元前934–1062年），自此被称为“ Buyid丝绸”。在1930年代，更多的丝绸出现了，据报道也出现在布伊德时期。在世界各地的博物馆购买丝绸后，关于这些丝绸真伪的争议不断升级。多年来，已经对这些丝绸中的几种进行了广泛的研究，涉及图像，织造图案，染料/媒染剂，样式，甚至是放射性碳年代测定。发现大多数丝绸不是布依德时期的。为了测试这些真丝织物的真实性，最近开发的利用氨基酸外消旋（AAR）技术结合毛细管电泳质谱技术的丝绸定年技术被用于纺织博物馆收藏品中的13个Buyid丝绸标本。在这些丝绸样本中，只有一个样本的AAR比率与从各个博物馆收集的真丝织物一致。此外，该样品的天冬氨酸外消旋化率也与其标本一致。14 C约会。其他“ Buyid丝”不仅对天冬氨酸，而且对苯丙氨酸和酪氨酸均显示出过量的氨基酸外消旋化水平，与这些氨基酸在真实的历史丝绸织物中的外消旋化速率不一致。在不同的pH和温度下用碱处理现代蚕丝可再现布依德丝的AAR模式，这意味着在较高温度下用碱进行化学处理可能是对这些织物进行人工时效的方法。结果暗示天冬氨酸，苯丙氨酸和酪氨酸的外消旋比可以用作生物标记物，用于鉴定天然和人工老化的丝绸。
更新日期：2017-09-19
中文翻译：
布义德丝绸和Bibi Shahrbanu的故事：丝绸的人工老化（伪造）生物标志物的鉴定
布依德丝绸伪造品是世界上最著名的丝绸伪造品之一。在1924年至1925年，对伊朗Bibi Shahrbanu厂址的发掘发掘了几种丝绸纺织品。这种丝绸被认为是波斯帝国的布依德时期（公元前934–1062年），自此被称为“ Buyid丝绸”。在1930年代，更多的丝绸出现了，据报道也出现在布伊德时期。在世界各地的博物馆购买丝绸后，关于这些丝绸真伪的争议不断升级。多年来，已经对这些丝绸中的几种进行了广泛的研究，涉及图像，织造图案，染料/媒染剂，样式，甚至是放射性碳年代测定。发现大多数丝绸不是布依德时期的。为了测试这些真丝织物的真实性，最近开发的利用氨基酸外消旋（AAR）技术结合毛细管电泳质谱技术的丝绸定年技术被用于纺织博物馆收藏品中的13个Buyid丝绸标本。在这些丝绸样本中，只有一个样本的AAR比率与从各个博物馆收集的真丝织物一致。此外，该样品的天冬氨酸外消旋化率也与其标本一致。14 C约会。其他“ Buyid丝”不仅对天冬氨酸，而且对苯丙氨酸和酪氨酸均显示出过量的氨基酸外消旋化水平，与这些氨基酸在真实的历史丝绸织物中的外消旋化速率不一致。在不同的pH和温度下用碱处理现代蚕丝可再现布依德丝的AAR模式，这意味着在较高温度下用碱进行化学处理可能是对这些织物进行人工时效的方法。结果暗示天冬氨酸，苯丙氨酸和酪氨酸的外消旋比可以用作生物标记物，用于鉴定天然和人工老化的丝绸。
京公网安备 11010802027423号