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 varieties and forms described. The recognized subspecies are: 1. "S. nigrum" L. subsp. "nigrum" — glabrous to slightly hairy with appressed non-glandular hairs 2. "S. nigrum" L. subsp. "schultesii" (Opiz) Wessley — densely hairy with patent, glandular hairs The Solanum nigrum" complex — also known as Solanum" L. section "Solanum" — is the group of black nightshade species characterized by their lack of prickles and stellate hairs, their white flowers, and their green or black fruits arranged in an umbelliform fashion. The "Solanum" species in this group can be taxonomically confused, more so by intermediate forms and hybridization between the