lactic acid
US /ˈlæktɪk ˈæsɪd/
・UK /ˌlæktɪk ˈæsɪd/
A1 初級
n. (u.)不可數名詞乳酸
Lactic acid is produced in muscles during intense exercise.
n. (u.)不可數名詞乳酸
Lactic acid is used as a food preservative and flavoring agent.
影片字幕
【生活小常識】為什麼蚊子會選擇性叮人？ (Why do mosquitoes prefer biting some people to others? - Big Questions - (Ep. 26))
02:26
- You’ll probably suffer more bites if you happen to produce more lactic acid, which comes from your sweat glands.
如果你汗腺分泌發達，皮膚表面產生較多乳酸，你可能會被叮更多包。
起司的美味關鍵 用科學方法做出美味焗烤起司三明治！ (The Science of the Perfect Grilled Cheese Sandwich)
03:16
- The bacteria converts lactose into lactic acid to drop the pH, which eliminates the charge of the casein micelles to help them stick together.
細菌將乳糖轉變為乳酸以降低 pH 值，減低酪蛋白膠束的電荷使他們易於結合。
- The longer the cheese sits, the more lactose is converted into lactic acid, and the lower the pH; the lower the pH, the sharper the cheese.
熟成越久，越多乳糖轉成乳酸，pH 值也越降越低，pH 值越低，起司就越「濃烈」。
如果開始聽到腦子裡出現一個聲音，該怎麼辦？ (What If You Hear Voices In Your Head?)
03:38
- modulate immune response and impact brain development. One study found that lactic acid
可以調節免疫反應，並影響大腦發展。其中一項研究發現乳酸菌在
種植瑪蒂娜的微型花園 (Growing Martina's Miniature Garden)
25:07
- It's like a burning sensation, like lactic acid in all the bottoms of your joints and arms.
就像一種燒灼感，就像你的關節和手臂底部都有乳酸。
