Sequential extraction process

摘要

The specification provides methods for extracting proanthocyanidins, especially from firm fruit such as cranberries, through a sequential extraction procedure, and producing infused fruit products.

主权项

1. A method for processing proanthocyanidin-containing fruit, the method comprising:
treating the proanthocyanidin-containing fruit in a first extraction by advancing the fruit along a path while flowing a first extraction liquid countercurrently to the advancing fruit, wherein the first extraction is performed at a temperature of about 75° F. or less, to thereby provide a once-extracted fruit and a juice extract; and treating the once-extracted fruit in a second extraction by advancing the fruit along a path while flowing a second extraction liquid countercurrently to the advancing fruit, wherein the second extraction is performed at a temperature of at least about 100° F. for at least 30 minutes, to thereby provide a proanthocyanidin-containing extract and twice-extracted fruit.