你有無曾經試過,加少少鹽到甜味的食物之後,感覺反而會更加甜?1054Please respect copyright.PENANAQ3SRI8Lu33
1054Please respect copyright.PENANAvjnl9cBjcR
1054Please respect copyright.PENANAbVPrZJ1wJB
究竟是心理作用,還是有確實的機制存在呢?1054Please respect copyright.PENANA0mCJY1iCRo
1054Please respect copyright.PENANAaop4NFBGab
(圖2)早前曾經深入淺出舌頭的甜味感測機制,可到這裡溫故知新:https://www.penana.com/article/4744641054Please respect copyright.PENANA8o2MVUrPkV
1054Please respect copyright.PENANAosVNUgS0bx
1054Please respect copyright.PENANAz5ZqQmMJCP
簡單來說,甜味物質與味蕾上的T1R2及T1R3合併,其後觸發一系列的反應,最終導致電流經由神經細胞傳到大腦,再由大腦分析電流訊息,製造甜味的感覺。1054Please respect copyright.PENANAUpzBnj15wC
1054Please respect copyright.PENANAo3k5asKlLt
(圖3)除T1R之外,舌頭上亦有名為SGLT1的蛋白質。1054Please respect copyright.PENANAm2KZDMPW7g
當有葡萄糖及鈉離子(從NaCl食用鹽得來)同時存在的話,SGLT1便會把葡萄糖及鈉離子同時收入細胞之內,觸發感測甜味的機制。1054Please respect copyright.PENANAGGPb1sUWso
1054Please respect copyright.PENANABNjQe87FZ4
1054Please respect copyright.PENANABMbUdU8UIs
這SGLT1蛋白質只會對葡萄糖及鈉離子產生反應,換言之,代糖以及鉀鹽便不會觸發這一套機制。1054Please respect copyright.PENANAqJGdwMKjPA
1054Please respect copyright.PENANAx96rV5CvQU
我們舌頭上相信有三種感測甜味的細胞,只擁有T1R、只擁有SGLT1以及同時擁有T1R和SGLT1。1054Please respect copyright.PENANArYwvGa7xh4
1054Please respect copyright.PENANALPikOw0kDq
鈉離子與葡萄糖的存在,將會在T1R的前提下額外觸發SGLT1的機制,因此我們主觀上會感覺到甜味的感覺更為強烈。1054Please respect copyright.PENANALSbUDBid0d
1054Please respect copyright.PENANA2gvPbOIKfD
當然,若然食用鹽(NaCl)添加過量的話,鹹味最終會蓋過所增進的甜味效益。1054Please respect copyright.PENANAlTRf5gY5mn
而如何拿掐箇中的平衡,那就要取決於廚師的功力和經驗了。1054Please respect copyright.PENANAMOStYGJJwL
1054Please respect copyright.PENANAz0qt9MXVht
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。1054Please respect copyright.PENANACuZUezP7K0
1054Please respect copyright.PENANA1WTfey7sk0
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/toc1054Please respect copyright.PENANAZeMLvJC82v
1054Please respect copyright.PENANAef2iDhblv4
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。1054Please respect copyright.PENANABK2RglOL3F
1054Please respect copyright.PENANAeKbwvj1o6G
Link:1054Please respect copyright.PENANA0AdGsYPlJa
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1054Please respect copyright.PENANA0IZYXT5WVM
1054Please respect copyright.PENANA1SuWL2FJHH
1054Please respect copyright.PENANAmcqtBtsiR8
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。1054Please respect copyright.PENANA6EWRXg7bT0
1054Please respect copyright.PENANAy52grOcApY
Ref1:https://www.cell.com/cell/fulltext/S0092-8674(03)00844-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867403008444%3Fshowall%3Dtrue1054Please respect copyright.PENANAEhlK7aEbsZ
1054Please respect copyright.PENANA15lveOd0oM
Ref2:https://onlinelibrary.wiley.com/doi/epdf/10.1111/apha.135291054Please respect copyright.PENANAa587oiK8TH
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #71
深入淺出–為何有時候落鹽到甜味食物後反而會覺得更甜
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