Loosing enzymes and vitamins after juicing?

[Singingcrowsings]

Hello,

Everywhere I read about juicing, they always mention, we need to drink our juice within 15 minutes of juicing, but the Wai way we are sipping our juice over a matter of hours. Are we missing out on enzymes and vitamins this way?

[overkees]

Vitamin C is one of the vitamins that oxidizes easily. Reading this article: http://www.ultimatecitrus.com/vitaminc.html suggests that keeping it in glass will lose 10% of the vitamins after 4 months.. also read http://www.madsci.org/posts/archives/20 ... .Bc.r.html

Keeping it fresh for 1 day in the refrigarator is no problem at all. Longer than 2 days is not suggested, this is accompanied by a loss of flavor. Most of the vitamins will still be in there. 15 minutes is just rubbish!

[RRM]

Are we missing out on enzymes and vitamins this way?

Proteins are nutrients.
Enzymes are not nutrients.
Yes, enzymes are comprised of proteins, which are (due to digestion and uptake in the blood) broken down into peptides and free amino acids.
In the blood, the body will construct new enzymes from these building blocks (amino acids).
If we would take up entire enzymes from food into our blood, we would be far too much susceptible to viral infections.
All the enzymes we need, are made inside our own body.