紫色可以是從紅加藍而成,這是無容置疑。379Please respect copyright.PENANAmSs4j4cNyA
但古時候的人又是從甚麼途徑獲取紫色顏料呢?379Please respect copyright.PENANABuQ587KtDQ
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(圖2)紫色顏料其中的一道渠道,就是從骨螺而來。379Please respect copyright.PENANAddLvzGOoch
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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。379Please respect copyright.PENANA2wiZGV4TGY
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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。379Please respect copyright.PENANAPJlnJbdF94
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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。379Please respect copyright.PENANAiEgICnPmvB
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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。379Please respect copyright.PENANATjVjtWLLq1
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延伸閱讀:深入淺出–以化學角度審視吶喊名畫379Please respect copyright.PENANABWBMLh7qOx
- 分享自 LIHKG 討論區379Please respect copyright.PENANAMrg0fQ8S8F
https://lih.kg/2204104379Please respect copyright.PENANA4TxQ9p0QSq
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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。379Please respect copyright.PENANAxLpOQ3a429
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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/toc379Please respect copyright.PENANAwbljsdtBvG
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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。379Please respect copyright.PENANAr1XAIFfldw
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Link:379Please respect copyright.PENANAV4K4uPCIpf
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio379Please respect copyright.PENANA7ctkFqSIdX
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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。379Please respect copyright.PENANALp2zR6UpZr
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Ref1:https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0245897#pone.0245897.ref007379Please respect copyright.PENANAmAMn7A4bUs
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562550/379Please respect copyright.PENANAPhkdsSPJQo