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?784Please respect copyright.PENANALkCobeKcMF784Please respect copyright.PENANAaPyuffrnnz
784Please respect copyright.PENANAhdO9eyDW0M
究竟是心理作用,還是有確實的機制存在呢?784Please respect copyright.PENANAMaG47rGXw9
784Please respect copyright.PENANAvNSMKr8OWx
(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/474464784Please respect copyright.PENANAZnEIOR6V6x784Please respect copyright.PENANAir6XOP7OFX
784Please respect copyright.PENANAZo47dGMFf1
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。784Please respect copyright.PENANAy7kjYrDc5x
784Please respect copyright.PENANAZVsi2kbb6f
(圖3)除T1R之外,舌頭上亦有名為SGLT1的蛋白質。784Please respect copyright.PENANAQmycneT6gV
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。784Please respect copyright.PENANA8wzaAurdn0784Please respect copyright.PENANARV9fKAqtiy
784Please respect copyright.PENANAlYv0DcAwbM
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。784Please respect copyright.PENANAwg9RahqzSY
784Please respect copyright.PENANA8hkvqgB5Df
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。784Please respect copyright.PENANAJ9JZ4pl44j
784Please respect copyright.PENANAyBj5X2GA6g
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。784Please respect copyright.PENANAI23AXPt2Zo
784Please respect copyright.PENANAzVmnN9V7Xn
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。784Please respect copyright.PENANA2rnEk4rfn2
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。784Please respect copyright.PENANAnx2TvEpJaL
784Please respect copyright.PENANA2baFLWfovA
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。784Please respect copyright.PENANA6nf1bDYmf4
784Please respect copyright.PENANAuU8mHb7mPx
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/toc784Please respect copyright.PENANAUUYewPJm1u
784Please respect copyright.PENANAqP1tBqBjSu
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。784Please respect copyright.PENANAdh6IuBoNvh
784Please respect copyright.PENANAbW5LXF09RC
Link:784Please respect copyright.PENANAZcUwhaOcm2
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio784Please respect copyright.PENANAFRZ12NliyD
784Please respect copyright.PENANAxQ6wFTKKo3
784Please respect copyright.PENANAEWAY4Qb8KU
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。784Please respect copyright.PENANA0YETOcJ0x5
784Please respect copyright.PENANATiZp8z4kRX
Ref1:https://www.cell.com/cell/fulltext/S0092-8674(03)00844-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867403008444%3Fshowall%3Dtrue784Please respect copyright.PENANAwvh6LZDaas
784Please respect copyright.PENANAywynuQgoJG
Ref2:https://onlinelibrary.wiley.com/doi/epdf/10.1111/apha.13529784Please respect copyright.PENANAl5pfAAgQh4