There is pork Gelatin (the most common) and bovine gelatin (less common, but still used). There is also something sold as "vegetarian gelatin", which is really nothing at all to do with gelatin, but it can be used to set foodstuffs in a similar way - it's also called "agar agar", or "agar gel".
halal gelatin
The gelatin used in dare cookies is derived from pork.
Type A (Acid precursor) gelatin is often used, especially for complex coacervates. Type B can also ne used as well.
Colloids.
Hydrogen bonds hold the fibrillar collagens of gelatin in solution.
Bovine gelatine
I can't recall what the name is...but I know for sure it is not Pork gelatin. There is no pork gelatin in this product.
Yes, the dessert Gelatin is a type of colloid. It is a colloid because it can be easily made by adding powder to water so that it congeals.
It depends on the country, but generally, no. If the type of gelatin is not specified on the list of ingredients, it is usually pork-derived, which would make the gelatin-containing-product haram. If the gelatin used is halal beef gelatin (as opposed to haram beef gelatin - which can come from an improperly slaughtered cow) or is vegetarian gelatin, the product will indicate as much.
The type of substance that gelatine is, is colloid!! Hope that helps!
-VEGAN - - - - - -
The gelatin in Member's Mark Vitamin D-3 is typically derived from bovine (cow) sources. Gelatin is a common ingredient used as a capsule material in many dietary supplements, including vitamin D-3 supplements. Bovine gelatin is a type of gelatin made from the collagen of cows, which is a common source for gelatin in the pharmaceutical and dietary supplement industries.