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
Solanum nigrum forms are used and are known as "ranti" (Javanese) or "leunca" (Sundanese). The fruit and leaves are eaten raw as part of a traditional salad "lalapan", or the fruit is cooked (fried) with "oncom". It was imported into Australia from Mauritius in the 1850s as a vegetable during the gold rush, but "S. nigrum" is now prohibited for trade as a food by the Australia New Zealand Food Standards Code. During ancient times in Hawaii young shoots, leaves, small white flowers, and small black berries were eaten. The leaves, among other greens, were cooked by rolling hot stones among them