紫色可以是從紅加藍而成,這是無容置疑。307Please respect copyright.PENANAWUPEhwoLWV
但古時候的人又是從甚麼途徑獲取紫色顏料呢?307Please respect copyright.PENANAgX5gqiRV5c307Please respect copyright.PENANAZAhLxHmeH9
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(圖2)紫色顏料其中的一道渠道,就是從骨螺而來。307Please respect copyright.PENANA2iJGMERnpi307Please respect copyright.PENANAkXGeURlzvq
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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。307Please respect copyright.PENANAUIdY4HZvQX
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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。307Please respect copyright.PENANAqeJTI8wJnA
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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。307Please respect copyright.PENANAGj1fG3JzaU307Please respect copyright.PENANAXxzqwhLjPY
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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。307Please respect copyright.PENANAiGiun1GfBP
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延伸閱讀:深入淺出–以化學角度審視吶喊名畫307Please respect copyright.PENANAwRB1IsnTI8
- 分享自 LIHKG 討論區307Please respect copyright.PENANA0E10vEu8p0
https://lih.kg/2204104307Please respect copyright.PENANA6gufsNmcsx
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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。307Please respect copyright.PENANAz2NacgBMsD
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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/toc307Please respect copyright.PENANAwb5f3RQXvu
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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。307Please respect copyright.PENANA3f3Ix2D99i
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Link:307Please respect copyright.PENANAZmAfFib1ak
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio307Please respect copyright.PENANA2bi3TsK4lr
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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。307Please respect copyright.PENANAwInbicn0Fb
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Ref1:https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0245897#pone.0245897.ref007307Please respect copyright.PENANAJW7wBAuw2g
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562550/307Please respect copyright.PENANAn7txtsj6Be