went? Unripe fruits often taste sour due to the  high concentration of organic acids present in  

了？由於其中存在高濃度的有機酸，未成熟的水果通常嘗起來很酸

them. One of the primary acids is called malic  acid, which contributes to the sour taste. As  

。一種主要酸稱為蘋果酸，它有助於酸味。隨著

the fruit ripens, the amount of acid decreases  and the amount of sugar increases. The fruit's  

果實的成熟，酸的量減少而糖的量增加。水果的

enzymes convert these acids into sugars or other  compounds, which makes the fruit sweeter. Also,  

酶將這些酸轉化為糖或其他化合物，從而使水果更甜。此外，

the ripening process involves complex changes  in the fruit's metabolism, causing a shift in  

成熟過程涉及水果新陳代謝的複雜變化，導致這些化學物質的平衡發生變化

the balance of these chemicals, leading to an  overall change in taste from sour to sweet.

，從而導致味道從酸到甜的整體變化。