The prevention of catabolism is probably related to (if not identical to) the suppression of autophagy. The problem is that one of the key things in anti-aging is getting rid of damaged cells and molecules, which requires functional autophagy. I don't think that muscle catabolism is going to be a significant problem with any real world workout that you're likely to do, unless you are doing one of those crazy person 150 mile runs, or something truly abusive like that. If you suppress autophagy, then you aren't stopping the damage, you're just stopping the cleaning up of the damage. That leaves you in a worse state at the end.
The public labs spectrometer is a pretty cool device, but I think you'd probably want to run it through an HPLC so you can separate the sample into discreet substances and see the extent of contamination.