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?589Please respect copyright.PENANAujCSuCbBvI
589Please respect copyright.PENANAOKCVtm30On
589Please respect copyright.PENANASTqKATUFNc
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。589Please respect copyright.PENANA5b70ggDgJn
589Please respect copyright.PENANA7rJuVK6oP7
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。589Please respect copyright.PENANAXex3JH5S3M
(這不是食神劇情,而是確實新聞,Ref1)589Please respect copyright.PENANAs3MrLfvLKs
589Please respect copyright.PENANAQYDwerVczl
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。589Please respect copyright.PENANAbOa87Lawr8
589Please respect copyright.PENANAJi14qGaniK
589Please respect copyright.PENANAEvWj3FB6n3
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)589Please respect copyright.PENANAJpoe0G0NQt
589Please respect copyright.PENANAgEjtUhqpOX
589Please respect copyright.PENANAmC1Yd0FBXp
Capsule589Please respect copyright.PENANAIiQuhLzSHH
防止細菌脫水589Please respect copyright.PENANAkEwKXozksv
保護自己免被人類的吞噬細胞吞噬589Please respect copyright.PENANAkAJmuJpame
589Please respect copyright.PENANAmtRopYDZh1
Pili589Please respect copyright.PENANAEHBljSzKcJ
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589Please respect copyright.PENANAHCu1ZkssFT
589Please respect copyright.PENANAY4twRmKHkE
Flagellum589Please respect copyright.PENANAdECtoDp6RJ
會以螺旋槳的方式轉動,讓細菌可以隨意走動589Please respect copyright.PENANATeL2ogFFEG
589Please respect copyright.PENANAhnz2nGpxT8
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589Please respect copyright.PENANAubDQ5uzDHA
https://www.penana.com/article/465358589Please respect copyright.PENANAannwo5pX7Q
589Please respect copyright.PENANAxNXIK2ScCF
589Please respect copyright.PENANAGtFAYycrS0
(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)。589Please respect copyright.PENANAdMTE9RFtT1
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。589Please respect copyright.PENANA7ECtxrvS7a
589Please respect copyright.PENANA3LpSuSa6ee
589Please respect copyright.PENANA3o8HYaWfrA
589Please respect copyright.PENANAQFwP3GbrtJ
589Please respect copyright.PENANA5D3dsrTM1v
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。589Please respect copyright.PENANAPfHMuzmfrF
589Please respect copyright.PENANAFHDesv10cT
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。589Please respect copyright.PENANAe7kgycU6p8
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。589Please respect copyright.PENANA8a0wn0kpxr
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。589Please respect copyright.PENANA4RShxQlU2s
589Please respect copyright.PENANAXvfQ8szoQ6
而最「令人意想不到」的是,此病絕對不可以用抗生素來醫治。589Please respect copyright.PENANABRltS7K35G
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。589Please respect copyright.PENANAFxBwXHlGBg
589Please respect copyright.PENANAeyGFPpNxgd
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。589Please respect copyright.PENANAyY3DHp1H38
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。589Please respect copyright.PENANAxXhPfp5ziq
589Please respect copyright.PENANAWFRLt8gRGt
照這個情況來看,或者,侵侵吃Well Done牛排是有他的道理......589Please respect copyright.PENANAUqyL3oUX42
589Please respect copyright.PENANANOTMHdah0k
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。589Please respect copyright.PENANAk8G6VAjs81
589Please respect copyright.PENANAhR3N5iUD07
至少我都暫時未試過因為食生牛扒而肚瀉。589Please respect copyright.PENANAa881X6PxTg
589Please respect copyright.PENANAqChDNahLmB
(在摸著木塊下的情況寫下這句。)589Please respect copyright.PENANAxlejnRPE2P
589Please respect copyright.PENANAGtvXfD4Pi2
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。589Please respect copyright.PENANA5tUv7Sm98i
589Please respect copyright.PENANATc8Yze1v7U
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/toc589Please respect copyright.PENANAEsziASv2H7
589Please respect copyright.PENANAA8QK2e8Ta9
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。589Please respect copyright.PENANAd0dgj6SWnp
589Please respect copyright.PENANAsxPfn88YjF
Link:589Please respect copyright.PENANALW7GSTsbOo
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio589Please respect copyright.PENANAqAKjnctWPO
589Please respect copyright.PENANAu55rAJRs2N
589Please respect copyright.PENANAtfMr5z0B3D
有興趣接收科普資訊的話,歡迎follow IG: potatopigtongue。589Please respect copyright.PENANATXAvrvEPhI
589Please respect copyright.PENANA19U4QXs71M
589Please respect copyright.PENANANj2qY3JXSZ
Ref1:
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline Info
-
toc Table of Contents
-
share Share
-
format_color_text Display Settings
-
exposure_plus_1 Recommend
-
Sponsor
-
report_problem Report
-
account_circle Login
Search stories, writers or societies
Continue ReadingClear All
What Others Are ReadingRefresh
X
Never miss what's happening on Penana!
科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #22
<<深入淺出–生吃牛肉的潛在風險>>
LIKES 5
READS 585
BOOKMARKS 148
campaign
Request update 0
Sponsor
Login with Facebook
or Sign up/Login to comment or bookmark!
Click to load the next chapter
X
After each update request, the author will receive a notification!
smartphone100 → Request update
X
Sponsor again
Click to login
Login first to show your name as a sponsor.
Thank you for supporting the story! :)
Please Login first.
×
Write down what you like about the story
×
Reading Theme:
Font Size:
Line Spacing:
Paragraph Spacing:
Load the next issue automatically
Reset to default
×
People Who Like This