隸屬山蟻亞科的螞蟻,尾部具有可分泌酸性液體的器官。526Please respect copyright.PENANAGrVMQ9B5eG
526Please respect copyright.PENANA8zDV3gi33b
526Please respect copyright.PENANAvvj9zS6AX0
甲酸(Formic Acid)是酸性液體的主要物質,普遍認作為抵禦外敵之用。526Please respect copyright.PENANAaQn2drumbN
526Please respect copyright.PENANAboSXudArKJ
(圖2)研究(Ref1)發現,餵食山蟻亞科螞蟻含有10%蜜糖成份的水(pH5)後,其消化器官的pH值會有所降低;pH越低,泛指酸性越重。526Please respect copyright.PENANAUfGLwqdHDh
526Please respect copyright.PENANAaOy9iFaFUm
526Please respect copyright.PENANAx9C9DVQXJ4
526Please respect copyright.PENANAtDyBvT5qkf
(圖手3)若果拑制螞蟻的舉動,進食蜜糖水後,其消化器官的pH值並不會有所下降。526Please respect copyright.PENANAX8HmcMdJWd
526Please respect copyright.PENANAhgRwZ2kL4l
526Please respect copyright.PENANAtJoxS6vXUX
後來發現,消化器官之所以進食後出現pH下降,是因為牠們進食後會咀嚼尾部的酸性分泌液所致。526Please respect copyright.PENANAhaDeVdzwOM
526Please respect copyright.PENANA6fr8ELStB2
當牠們的行動被有所限制後,再也沒能「自食其酸」,因此消化器官的pH值並不會有所下降。526Please respect copyright.PENANA5M3aLpWcC1
526Please respect copyright.PENANAMOlVZa5bp8
(圖4)自食其酸的其中一道作用,就是能夠幫忙消除外來食物對自己有害的細菌。526Please respect copyright.PENANAWxchOp5Xb7
526Please respect copyright.PENANAMrFsp06FmG
526Please respect copyright.PENANAefJpLsAWLB
研究故意注入特定的細菌到食物之中,再餵給螞蟻,亦能夠量度出該細菌並沒能夠在酸性分泌液中生存。526Please respect copyright.PENANAqB4NFV6bcM
526Please respect copyright.PENANAsNue6qaHJA
而我們人類本身的胃部本身就懂得製作胃酸,並不需要「自食其酸」來抵禦外來細菌。526Please respect copyright.PENANApTW1bnIsop
526Please respect copyright.PENANAAYzOgMs1uY
除非高價買入GME股份,才會自食其酸。526Please respect copyright.PENANAzQQQxRxVHY
526Please respect copyright.PENANAu4OOkIUkhY
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。526Please respect copyright.PENANAx1frUIqxp6
526Please respect copyright.PENANAMrOEEWiadr
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/toc526Please respect copyright.PENANALA5fodtvTN
526Please respect copyright.PENANAnXrIR6B3aK
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。526Please respect copyright.PENANAGXwAjzkseP
526Please respect copyright.PENANA4TDOoU7o6o
Link:526Please respect copyright.PENANAjhRp2vpiIR
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio526Please respect copyright.PENANAp6c6bRFVI1
526Please respect copyright.PENANALLm5qLKaGR
526Please respect copyright.PENANA76gUDG92BI
基於WhatsApp/Facebook等問題,IG將不會再作更新,只會寄居本土LIHKG及Penana。526Please respect copyright.PENANAuxX1r4aQAX
526Please respect copyright.PENANAhPiWPvpnJW
Ref1:https://elifesciences.org/articles/60287526Please respect copyright.PENANAeCZwYFf9Y4
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #150
三十秒科學–自食其酸
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