Here's why:
* Sugar syrup is made from sugars, like sucrose, which are simple carbohydrates.
* Starch syrup is made from starch, a complex carbohydrate.
Enzymes can break down complex carbohydrates (like starch) into simpler sugars, but they cannot convert simple sugars back into complex carbohydrates.
Here's a simple analogy: Imagine you have a Lego model and you break it down into individual bricks. You can't use the same process to turn those bricks back into the original model. Similarly, enzymes can break down starch, but they can't build it back up.
To make starch syrup, you start with starch, usually from corn, and use enzymes to break it down into simpler sugars, like glucose. This process is called hydrolysis.
