Blackcurrant name is derived from "Ribes nigrum") and similar fruit syrups and juices. Raw blackcurrants are 82% water, 15% carbohydrates, 1% protein and 0.4% fat (table). Per 100 g serving providing 63 kilocalories, the raw fruit has high vitamin C content (218% of the Daily Value, DV) and moderate levels of iron and manganese (12% DV each). Other nutrients are present in negligible amounts (less than 10% DV, table). Polyphenol phytochemicals present in the fruit, seeds and leaves, are being investigated for their potential biological activities. Major anthocyanins in blackcurrant pomace are delphinidin-3-"O"-glucoside, delphinidin-3-"O"-rutinoside, cyanidin-3-"O"-glucoside, and cyanidin-3-"O"-rutinoside, which are retained in
Ribes bracteosum a whitish bloom, edible but sometimes unpleasant. Ribes bracteosum Ribes bracteosum, the stink currant, is a species of currant native to western coastal North America from southeastern Alaska to Mendocino County in California. "Ribes bracteosum" is a deciduous shrub, without thorns, growing to 3 m (10 feet) tall. The leaves are 5–20 cm (2-8 inches) across, palmately lobed with 5 or 7 lobes. The flowers are produced in spring after the leaves emerge, on racemes 15–30 cm (6-12 inches) long containing 20-40 flowers; each flower is 5–10 mm (2-4 inches) in diameter, with five white or greenish-tinged petals. The fruit,