Separating Game Updates Packaged Together?

I want to update Minecraft: PS3 Edition (BLUS31426) to a specific update. However, all of the update files I have are the 7 latest updates. One PKG (v1.78) is 1.13GB while the rest of the PKGs after this update are around 40MB each.

I know 100% there are many more updates before these 7 PKGs, but I believe they are packaged into the 1.13GB one for whatever reason. Is there a way I can separate those smaller updates from this big package? Like I said, there is a specific update I want to play on, but I cannot find that update or any ones before it individually.

Downloadable Updates:
       

A bunch more updates:
   

You can't.
Technically a patchset is all the updates the game needs from its base version to the latest. The developer of the game can issue a new patchset with many updates batched in one to avoid endless downloading of packages on the console, since it does update packages one by one. Since the same file is often rewritten in different updates, even if you had the list of modified files per update, it's technically impossible to generate the old updates from a merged one as you don't know what part of the files changed when.
When a new patchset is pushed to the update server, the previous patchset becomes inaccessible, so there's no way to fetch these previous updates from the API either, the only way is if there are backups from the direct download links for these old updates.