Black seed plant is well described in a research named “Potential effects of Thymoquinone the active constituent of black seed (Nigella Sativa L.) on human health” conducted by Güzelsoy, Aydın and Başaran issued on 15.08.2018.
Black seed plant belongs to Ranunculaceae (Ranunculus) family. It is grown in South West
Asia, in Europe in North Africa.
Black seed is also grown in Turkiye in Afyon, Isparta, Burdur and Konya regions.
Black seed (çörek otu) is known as Nigella sativa L. It is an annual plant flowering 20-30 cm long.
Nigella has linear lanceolate leaves and delicate flowers.
It consists of 5-10 petals and is usually yellow, white, pink, pale blue and purple (Figure 1). Fruits of the plant have large capsules consisting of 3-7 fused follicles and each contains several seeds.
Black seeds are flat, oblong, angular and funnel shape. Seeds 0.2 cm long and 0.1 cm wide (Figure 1
Seeds are used as spices. It is used in traditional medicine for the treatment of many diseases in different forms in Middle East and Far East countries.
Black seed is used in traditional medicine; for the treatment of symptoms and diseases like asthma, cough, bronchitis, inflammatory diseases, fever, pain, dizziness, kidney and liver dysfunction, nervous system diseases, diabetes, eczema, gastrointestinal system problems, including hypertension, cancer. It is reported that Chemotherapy in cancer patients can be used together in complementary and alternative medicine.
Black seed has a high nutritional value and contains various active chemical components.
There exists following nutrients in the structure of black seed:
mainly saturated / unsaturated fixed oils (31.0%, -35.5%),
volatile fats (0.4-0.45%),
amino acids, alkaloids, tannins, saponins, fibers,
minerals (calcium, zinc, phosphate),
vitamins (ascorbic acid, thiamine, niacin, pyridoxine and folic acid).
Unsaturated fatty acids (~ 85%);
Fatty acid compositions of black seed are shown in following table:
|Compositions||% (a/a)||Compositions||% (a/a)|
|Linoleic acid||44,7-56||Stearic acid||2,7-3|
|Eicosadienoic acid||2-2,5||Arachidonic acid||2-3|
|Oleic acid||20,7-24,6||Miristic acid||0,16|
|Palmitic acid||12-14,3||Palmitoleic acid||3|