紫色可以是從紅加藍而成，這是無容置疑。751Please respect copyright.ＰＥＮＡＮＡSeknlFn13i
但古時候的人又是從甚麼途徑獲取紫色顏料呢?751Please respect copyright.ＰＥＮＡＮＡyiaNm5Qz1S
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(圖2）紫色顏料其中的一道渠道，就是從骨螺而來。751Please respect copyright.ＰＥＮＡＮＡUYcqjgujvL
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顏色的來源當然並非來自骨螺外部，而是來自內部一道名為鰓下腺(Hypobranchial gland)的器官。751Please respect copyright.ＰＥＮＡＮＡgM2XptQTks
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提取過程相當複雜，而且顏色最終的光澤將取決於骨螺的新鮮度，平均來說每隻骨螺最終只可提取得到約0.9克的顏料。751Please respect copyright.ＰＥＮＡＮＡEB0FSlbkQL
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（圖3）從以色列南部找出屬於約3000年前(鐵器時代)的紫色羊毛纖維中，找到骨螺鰓下腺器官內含的6-monobromoindigotin和6,6-dibromoindigotin的化學物質，進一步引證從骨螺提取紫色顏料的證據。751Please respect copyright.ＰＥＮＡＮＡAs7uaUYdx8
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據稱，從骨螺而來的紫色染料一律將被命名為True Purple或是Royal Purple，對比其他來自植物或礦物得來的紫色染料，較不容易會褪色。751Please respect copyright.ＰＥＮＡＮＡbJpKbehnSh
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延伸閱讀:深入淺出–以化學角度審視吶喊名畫751Please respect copyright.ＰＥＮＡＮＡn5EDQUrLn6
- 分享自 LIHKG 討論區751Please respect copyright.ＰＥＮＡＮＡraDwXr5j1b
https://lih.kg/2204104751Please respect copyright.ＰＥＮＡＮＡbO012oL6tJ
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。751Please respect copyright.ＰＥＮＡＮＡdGRFinLIYQ
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc751Please respect copyright.ＰＥＮＡＮＡ3oX11u4g3X
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。751Please respect copyright.ＰＥＮＡＮＡpJsVVmMbzD
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https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio751Please respect copyright.ＰＥＮＡＮＡ2MQh3EcsTA
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。751Please respect copyright.ＰＥＮＡＮＡQ6utMrAWSb
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Ref1:https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0245897#pone.0245897.ref007751Please respect copyright.ＰＥＮＡＮＡT0W3vRH6rG
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562550/751Please respect copyright.ＰＥＮＡＮＡ5z1RsyCAtT
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