<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">A basic marinade should contain a balance between acid, oil and spices. The oil should be able to emulsify with the acid, and not become a protective coating for the meat. The acid is there to help tenderize the meat and enable the spices to penetrate the subsurface of the meat. The selected spices are to impart the desired flavour. It is similar to the brining process except that the salt moves into the meat cells through osmosis and takes some of the flavours with it. When cooking something that is brined the salt helps retain the moisture in the cells making the meat juicier and more flavoursome, however this is sometimes at the expense of making the food taste saltier. Some cultures prefer this flavour over a sweet flavour. the use of sugar along with salt masks the saltiness to a degree. </div></BLOCKQUOTE>
Phil, what's the source for this quote?
As far as I read, acid is capable of softening the surface of the meat but can't really do more than that. And this denaturing of surface proteins can actually create a barrier to flavor penetration.
Flavors need salt. I like to brine because it enhances the pork or white chicken flavors, which need all the help they can get. I'm not sure saltier can ever be considered a bad thing if in proportion.
all just opinions, of course, compelling data can easily change them, I like to stay open minded.