科普專欄–薯不揀單 - 三十秒科學–貓草

貓隻遇到貓草後，不但會舔草，亦會用頭及臉與草磨擦，甚至會以全身的方式在草上滾動。521Please respect copyright.ＰＥＮＡＮＡkjboUgLgMz
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過程通常歷時5-15分鐘，然後就會有以小時計的冷靜期。521Please respect copyright.ＰＥＮＡＮＡVTF9YPPQLd
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究竟，貓草的吸引力在於哪裡呢?521Please respect copyright.ＰＥＮＡＮＡdsgtNHuQvS
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（圖2）有日本科學家從貓草中提煉出一種科學物質Nepetalactol。521Please respect copyright.ＰＥＮＡＮＡmgCrZye5kp
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在18隻本身對貓草有正面反應的貓隻中，有15隻主動走向含Nepetalactol的紙張上，利用身體跟其磨擦，歷時接近10分鐘。521Please respect copyright.ＰＥＮＡＮＡdr0GBi3FZK
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（圖3）有圖有真相，實驗室的貓，流浪貓，就連豹及美洲獅都屈服在貓草的Nepetalactol化學物質上。521Please respect copyright.ＰＥＮＡＮＡj4Oefdo9uK
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然而，狗隻及老鼠則對這化學質並無興趣。521Please respect copyright.ＰＥＮＡＮＡ8LS3bKou3S
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（圖4）經過一系列的實驗後，證實貓隻吸入貓草的Nepetalactol化學物質後，血液的β-endorphin份量會隨之上升，導致愉悅感增加。521Please respect copyright.ＰＥＮＡＮＡXueyVwjtDA
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同時，貓草的Nepetalactol化學物質塗在身上後，亦具備驅蚊效果。521Please respect copyright.ＰＥＮＡＮＡX0Fu8jGQ8X
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有科學家更利用是次研究的結果，申請了專利利用Nepetalactol製作驅蚊劑，同時亦正在進行研究貓草會否含有物質可對抗其他害蟲。521Please respect copyright.ＰＥＮＡＮＡwS31wiRMXh
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加多幅大頭像，希望各位可以入下面條link俾個like。521Please respect copyright.ＰＥＮＡＮＡE1DMXjbkZS
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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/toc521Please respect copyright.ＰＥＮＡＮＡFNAzJmEgrL
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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。521Please respect copyright.ＰＥＮＡＮＡOlSmD6sffb
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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/portfolio521Please respect copyright.ＰＥＮＡＮＡrywkj8CHsp
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基於WhatsApp/Facebook等問題，IG將不會再作更新，只會寄居本土LIHKG及Penana。521Please respect copyright.ＰＥＮＡＮＡHwskNoYfkC
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Ref1:https://advances.sciencemag.org/content/7/4/eabd9135521Please respect copyright.ＰＥＮＡＮＡIxxyvAMYbi