紫色可以是從紅加藍而成，這是無容置疑。509Please respect copyright.ＰＥＮＡＮＡLrLJlcCBFH
但古時候的人又是從甚麼途徑獲取紫色顏料呢?509Please respect copyright.ＰＥＮＡＮＡ6ivuluOsG4
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(圖2）紫色顏料其中的一道渠道，就是從骨螺而來。509Please respect copyright.ＰＥＮＡＮＡDbgvVrfzGp
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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。509Please respect copyright.ＰＥＮＡＮＡDuxwmScNFm
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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。509Please respect copyright.ＰＥＮＡＮＡeDeFcMtXUl
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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。509Please respect copyright.ＰＥＮＡＮＡqtHNtghuGy
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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。509Please respect copyright.ＰＥＮＡＮＡXeTwmnZjzz
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延伸閱讀:深入淺出–以化學角度審視吶喊名畫509Please respect copyright.ＰＥＮＡＮＡgWn1K3DATq
- 分享自 LIHKG 討論區509Please respect copyright.ＰＥＮＡＮＡk7HUEgU7he
https://lih.kg/2204104509Please respect copyright.ＰＥＮＡＮＡd4tfOMcUS6
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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。509Please respect copyright.ＰＥＮＡＮＡMXszThJUah
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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/toc509Please respect copyright.ＰＥＮＡＮＡDcgqHuoRYN
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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。509Please respect copyright.ＰＥＮＡＮＡdcW0CxUZWN
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Link:509Please respect copyright.ＰＥＮＡＮＡhnQ1QZVAPx
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio509Please respect copyright.ＰＥＮＡＮＡPe9dShNkay
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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。509Please respect copyright.ＰＥＮＡＮＡNgGAPVPQyv
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Ref1:https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0245897#pone.0245897.ref007509Please respect copyright.ＰＥＮＡＮＡaez0ndlsn8
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562550/509Please respect copyright.ＰＥＮＡＮＡY3O0B8liok
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