I am looking for a dataset containing rate of nutrient decay in fruit/vegetable juice. It will probably depends how the juice is stored. The juice was made using a personal juicer.
The goal is to make an educated decision about whether to use the juicer as needed (maximizing nutrient content but increasing cleanup effort) or to produce fruit/vegetable juice 6/12/18 hrs ahead of time (reducing cleanup effort but perhaps reducing nutrient content).
(The question was asked in a slightly different form on Seasoned Advice Stack Exchange by sibbaldiopsis but was closed there.)