進食高碳水化合物含量的食物,血糖難免會有所增加。長期血糖過高水平的話,將會增加患上二型糖尿病的風險。840Please respect copyright.PENANAMxDTOw8REU
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而血糖飄升的幅度,好取決於食物的物理結構、內含的碳水化合物種類、以及進食後所引起的神經及荷爾蒙反應。840Please respect copyright.PENANAzgdfFQRvUq
840Please respect copyright.PENANAi3ZdKTt218
(圖2)食物的結構,很大程度由相應的蛋白酶主宰。隨著大自然間基因的變異,對應的蛋白酶功效亦會有所不同。840Please respect copyright.PENANAjclmJ7xk4P
840Please respect copyright.PENANAS3NCy8e5kg
840Please respect copyright.PENANAX21ztIT9u4
一道負責控制澱粉結構的基因在天然變異下,造就出了rr豌豆品種,並促使其澱粉結構較原本的RR品種相對較長。840Please respect copyright.PENANAfqj9lbDLpp
840Please respect copyright.PENANAYAR1f2dXNs
(圖3)有科學家將這兩種豌豆進行人體測試(Ref1),並得出有趣的結果。840Please respect copyright.PENANAocJ20ug6lb
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840Please respect copyright.PENANAFVfI7NcTJ6
12名健康人士分別進食50克RR及rr豌豆後,食用同佳rr豌豆人士的血糖及胰島素水平明顯比RR豌豆為低。840Please respect copyright.PENANAWn7Frw3ryY
840Please respect copyright.PENANAxkSnCqKQCl
(圖4)利用機器往豌豆施壓後,RR豌豆呈糊狀形態,而rr豌豆則拒絕自首分成兩塊。840Please respect copyright.PENANAIt9p7Hcls5
840Please respect copyright.PENANAu9yeFYFuOY
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對比RR豌豆,rr豌豆最終化成為Butyrate的百分比較之為高。840Please respect copyright.PENANAvD6hsuPoPQ
840Please respect copyright.PENANAv8fwiapKJD
Butyrate是腸道細菌消化碳水化合物的產物,亦即是說rr豌豆相對上地並沒有效被腸道吸收,而是成為了腸道細菌的食物,間接降低了碳水化合物進入血液循環系統的機會。840Please respect copyright.PENANATR5Bny9OZK
840Please respect copyright.PENANAgIOO1cSgN4
依照這邏輯的話,若然我們在其他殼物中以依樣胡蘆的方法修改那基因,大有可能會得到進食後血糖提升速度相對上較慢的殼物,長遠能減低糖尿病增長的風險。840Please respect copyright.PENANAgpy7L3nA03
840Please respect copyright.PENANAyOlSYmxrLA
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。840Please respect copyright.PENANAklFIdLJGAT
840Please respect copyright.PENANArRknmi0pYK
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/toc840Please respect copyright.PENANAmHADsmroqE
840Please respect copyright.PENANA7n20x1QnxT
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。840Please respect copyright.PENANAOI2INuQ6C9
840Please respect copyright.PENANABcMu7k8xWT
Link:840Please respect copyright.PENANAwDyGr8fdxr
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio840Please respect copyright.PENANAi00mSJjU0r
840Please respect copyright.PENANAgoC4i5QiLs
840Please respect copyright.PENANABYF4O5K6hX
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。840Please respect copyright.PENANAIcbMx0QYBb
840Please respect copyright.PENANAbRpTdjazAi
https://www.instagram.com/potatopigtongue/840Please respect copyright.PENANAC2JTDgN7ga
840Please respect copyright.PENANAbHFopzxYTB
840Please respect copyright.PENANAZqcml9SSJU
Ref1:https://www.nature.com/articles/s43016-020-00159-8840Please respect copyright.PENANAdlzItwzqG6
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科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #93
深入淺出–天然基因變異造就出對人體更為健康的豌豆
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