Department of Anthropology, The George Washington University, 2110 G Street NW, Washington, DC 20052, USA.
Department of Anthropology, Vanderbilt University, 124 Garland Hall, Nashville, TN 37235, USA.
Sci Adv. 2016 Sep 14;2(9):e1501623. doi: 10.1126/sciadv.1501623. eCollection 2016 Sep.
Archaeological research has identified the use of cultivated cotton (Gossypium barbadense) in the ancient Andes dating back to at least 7800 years ago. Because of unusual circumstances of preservation, 6000-year-old cotton fabrics from the Preceramic site of Huaca Prieta on the north coast of Peru retained traces of a blue pigment that was analyzed and positively identified as an indigoid dye (indigotin), making it the earliest known use of indigo in the world, derived most likely from Indigofera spp. native to South America. This predates by ~1500 years the earliest reported use of indigo in the Old World, from Fifth Dynasty Egypt [ca. 4400 BP (before present)]. Indigo is one of the most valued and most globally widespread dyes of antiquity and of the present era (it being the blue of blue jeans).
考古研究已经确定，在古代安第斯山脉中使用了种植的棉花（Gossypium barbadense），其历史可以追溯到至少 7800 年前。由于保存条件特殊，秘鲁北部海岸 Preceramic 遗址 Huaca Prieta 的 6000 年前的棉织物保留了一种蓝色颜料的痕迹，经过分析并被确认为靛蓝染料（靛蓝），这使它成为世界上已知最早使用靛蓝的例子，很可能来自原产于南美洲的菘蓝属植物。这比最早报道的旧世界使用靛蓝的时间早了约 1500 年，这个时间来自埃及第五王朝[约公元前 4400 年（公元前）]。靛蓝是古代和现代最有价值、分布最广的染料之一（它是蓝色牛仔裤的蓝色）。
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