普遍來說,雞肉和豬肉我們通常都會煮熟才吃,但牛肉就偏偏可以選擇幾成熟來品嘗,究竟點解呢?829Please respect copyright.PENANA70h7WRYeip829Please respect copyright.PENANAXqWSWaNIy8
829Please respect copyright.PENANA1JF6QYdz8q
事實上,生吃食物始終會有一定風險,有機會導致食物中毒,純粹因為牛肉的風險相對比雞肉和豬肉較低,所以才有「生食」牛肉的選擇。829Please respect copyright.PENANAz4q2Yp5bUy
829Please respect copyright.PENANA30VZmDhB04
近在2020年6月,美國號令回收4萬三千磅牛肉,原因就是化驗證實那批牛肉含有令人腹瀉的大腸幹菌,老是在美國牛肉常出現的O157:H7品種。829Please respect copyright.PENANAHlDvz3IMuE
(這不是食神劇情,而是確實新聞,Ref1)829Please respect copyright.PENANAcYfXU8CD57
829Please respect copyright.PENANAquQTGV4z49
而自從90年代發現這品種後,美國規定牛肉出售前必須測量是否含有某幾種令人肚瀉的大腸幹菌。這一次為何能夠流出市面,那就不得而知了。829Please respect copyright.PENANAeAH2XmlXNF
829Please respect copyright.PENANAYWykzobddJ
829Please respect copyright.PENANARmcMTDXROW
在繼續講解之前,我們先以超簡略的方式認識一下細菌的外部構造。(圖2)829Please respect copyright.PENANAGMXInSQ8vz829Please respect copyright.PENANAWnSt3rR9J8
829Please respect copyright.PENANAVgr8vpBsqM
Capsule829Please respect copyright.PENANAz3UogNnJaK
防止細菌脫水829Please respect copyright.PENANAMgmn85daDQ
保護自己免被人類的吞噬細胞吞噬829Please respect copyright.PENANAGzszbtEK5u
829Please respect copyright.PENANAKTHZNCKZfe
Pili829Please respect copyright.PENANAAMOVcmiXuY
用來抓實接觸面,例如腸道壁膜,同時亦都可以用來幫助移動829Please respect copyright.PENANAe6ohVYwR95
829Please respect copyright.PENANAtJpz9em441
Flagellum829Please respect copyright.PENANAzJTv58cc08
會以螺旋槳的方式轉動,讓細菌可以隨意走動829Please respect copyright.PENANApPLh3io7Qi
829Please respect copyright.PENANAiQp9MrKwYE
如有興趣想知道細菌和病毒的分別,可閱讀我之前所寫的文章829Please respect copyright.PENANAdvjGnXJPtQ
https://www.penana.com/article/465358829Please respect copyright.PENANAit23DLkFaa
829Please respect copyright.PENANAAVzPMpLNAk
829Please respect copyright.PENANAIN41sBnfvT
(圖3)令人腹瀉的大腸幹菌有好多種,而經常因為食用未煮熟的牛肉而出現在新聞的是Shiga toxin-producing E. coli (STEC)。829Please respect copyright.PENANAbXiIsiiNCz
顧名意義,它們能夠釋放Shiga toxin這有毒物質,而E coli則是大腸幹菌的簡稱。829Please respect copyright.PENANA550IgEV2ec
829Please respect copyright.PENANAcOYp2CH1F2829Please respect copyright.PENANAOtGJEnaNZ2
829Please respect copyright.PENANAW3g9U9sFMy
829Please respect copyright.PENANA5XnZTji6eJ
O157:H7品種,就是STEC的一種,潛伏期為2-3日。它們被曾證實可以逗留在外間土壤21個月有多,只有70度以上高溫才能確保徹底消滅它們。829Please respect copyright.PENANAhteWVlIVWf
829Please respect copyright.PENANAsOBg13v3Za
它們最為麻煩的地方,就是能夠抵禦胃酸,有能力從胃部游走到腸道。829Please respect copyright.PENANAhZg9Dxi4Rp
到達腸道位置後,它們所釋放的Shiga toxin能夠對腸壁的細胞造成傷害,引致腹瀉及脫水。829Please respect copyright.PENANAnm0uBa2lVV
嚴重情況下更會引致溶血性尿毒綜合症(HUS),對腎臟造成長久傷害。829Please respect copyright.PENANAefElUIextT
829Please respect copyright.PENANATJqgXYs7NJ
而最「令人意想不到」的是,此病絕對不可以用抗生素來醫治。829Please respect copyright.PENANAERH31T067w
因為用抗生素來傷害它們的話,只會導致更多Shiga toxin從它們身上釋出體外,適得其反。829Please respect copyright.PENANASpIrsBVGzQ
829Please respect copyright.PENANAPtvwSRd5oz
通常情況下,醫生會抽取病人的糞便樣本,斷症腹瀉是否由STEC而起。829Please respect copyright.PENANAagkRz7ButZ
如果屬實,可以做的方法就是盡量讓病人補充水份,避免脫水情況過於嚴重,並等待身體自我康復。829Please respect copyright.PENANA1yQPpJgpUB
829Please respect copyright.PENANAQK6yk46cSt
照這個情況來看,或者,侵侵吃Well Done牛排是有他的道理......829Please respect copyright.PENANApjviUn3HiU
829Please respect copyright.PENANAI6GjRpkdYI
當然,如果牛肉來貨沒有問題,而處理上一切衛生措施做足的話,應該不會引起太大問題的。829Please respect copyright.PENANAyUGO4k0xSW
829Please respect copyright.PENANALQHsXHNaBe
至少我都暫時未試過因為食生牛扒而肚瀉。829Please respect copyright.PENANAEFgVuma5cH
829Please respect copyright.PENANAoXEnucqhxr
(在摸著木塊下的情況寫下這句。)829Please respect copyright.PENANAHUl6OZ8ffB
829Please respect copyright.PENANAeXMWqR4ppp
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。829Please respect copyright.PENANAWXYvimXzyK
829Please respect copyright.PENANAEKwzaB1Tqv
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/toc829Please respect copyright.PENANAONh4Q6qoYd
829Please respect copyright.PENANA3Gl5aBjkym
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。829Please respect copyright.PENANAL769seNKdu
829Please respect copyright.PENANAraAvymkDVN
Link:829Please respect copyright.PENANABPw8BqiYjC
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio829Please respect copyright.PENANAOsTCmL7A4M
829Please respect copyright.PENANAZvkEFrt3uK
829Please respect copyright.PENANAwqp2dfHm8n
有興趣接收科普資訊的話,歡迎follow IG: potatopigtongue。829Please respect copyright.PENANAIs1H5DpJjY
829Please respect copyright.PENANAMzcrUkDVKl
829Please respect copyright.PENANAmBivLwdlSA
Ref1:
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #22
<<深入淺出–生吃牛肉的潛在風險>>
喜歡 5
閱讀 825
書籤 150
campaign
催更 0
打賞

按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人