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。447Please respect copyright.ＰＥＮＡＮＡeHP63UzbvW
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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。447Please respect copyright.ＰＥＮＡＮＡpJ7G43gHV2
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究竟，貓草的吸引力在於哪裡呢?447Please respect copyright.ＰＥＮＡＮＡAkjdvimj3V
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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。447Please respect copyright.ＰＥＮＡＮＡ8JcgwlQh6a
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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。447Please respect copyright.ＰＥＮＡＮＡZELmtCWxRQ
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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。447Please respect copyright.ＰＥＮＡＮＡDGzWK2H4JM
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然而，狗隻及老鼠則對這化學質並無興趣。447Please respect copyright.ＰＥＮＡＮＡGgcUB9k1Ls
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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。447Please respect copyright.ＰＥＮＡＮＡX6obyNHfMR
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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。447Please respect copyright.ＰＥＮＡＮＡ91BgOkZXyz
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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。447Please respect copyright.ＰＥＮＡＮＡ1KHuyJziFa
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加多幅大頭像，希望各位可以入下面條link俾個like。447Please respect copyright.ＰＥＮＡＮＡ1fDuTQBwGt
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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/toc447Please respect copyright.ＰＥＮＡＮＡStqfXt2YSm
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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。447Please respect copyright.ＰＥＮＡＮＡhMJguoepHf
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Link:447Please respect copyright.ＰＥＮＡＮＡTrNfACFqcN
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio447Please respect copyright.ＰＥＮＡＮＡ2GOpd4qUmC
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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。447Please respect copyright.ＰＥＮＡＮＡqMoxj360qA
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Ref1:https://advances.sciencemag.org/content/7/4/eabd9135447Please respect copyright.ＰＥＮＡＮＡOyt4pACbEN