Store bought orange juice does not taste better because of the deoxygenation. In fact, quite the opposite.
"Once the juice is squeezed and stored in gigantic vats, they start removing oxygen. Why? Because removing oxygen from the juice allows the liquid to keep for up to a year without spoiling. But! Removing that oxygen also removes the natural flavors of oranges. Yeah, it's all backwards. So in order to have OJ actually taste like oranges, drink companies hire flavor and fragrance companies, the same ones that make perfumes for Dior, to create these "flavor packs" to make juice taste like, well, juice again."[1]
"Once the juice is squeezed and stored in gigantic vats, they start removing oxygen. Why? Because removing oxygen from the juice allows the liquid to keep for up to a year without spoiling. But! Removing that oxygen also removes the natural flavors of oranges. Yeah, it's all backwards. So in order to have OJ actually taste like oranges, drink companies hire flavor and fragrance companies, the same ones that make perfumes for Dior, to create these "flavor packs" to make juice taste like, well, juice again."[1]
[1] - http://www.huffingtonpost.com/2011/07/29/100-percent-orange-...