scholarly journals Physico-Chemical Characteristics of Released and Improved Black Cumin (Nigella Sativa L.) Varieties

2020 ◽  
Vol 7 (1) ◽  
pp. 1-4
Author(s):  
Abdela Befa Kinki

Black cumin (Nigella sativa L.) is an annual herb of the Ranunculaceae family, which is growing in Mediterranean region and Ethiopia. In Ethiopia the most people are used as household spice preparation and medicinal purpose. In Ethiopia, black cumin varieties are now days released, but there is no as such work on their physiochemical properties avail. This work presents the investigation of the physicochemical properties of the three-black cumin (Nigella sativa L.) verities (Derbera, Dershaye, and Edan). The results of physicochemical properties Derbera is highest in essential oil content (0.7%) and Edane is lowest (0.3%) than other verities and Dershaye is highest in refractive index of essential oil(1.49), refractive index of oleoresin( 1.52%), moisture(8.0%),fat(24.0%),ash(10.45%), protein(20.61%) and lowest in fiber(16.7%) content than other varieties. From this result, Dershaye black cumin Variety, verities show the superior quality in physicochemical properties than the two black cumin verities (Derbera and Edane).

Author(s):  
Meysam Shirmohammadi ◽  
Esmat Mohammadinasab ◽  
Zakiyeh Bayat

: In the present study the applicability of various molecular descriptors was tested for the QSPR study on 40 quinolones derivatives. The relationship between some of the molecular indices with physicochemical properties such as refractive index (n), polarizability (α) and HOMO-LUMO energy gap (ΔEH-L) was represented. At first, the chemical structure of quinolones derivatives was optimized by Gaussian 98 program and ab initio method at the #HF/6-31++G**level, and then the physicochemical properties such as refractive index, polarizability and HOMO-LUMO energy gap were calculated. Genetic algorithm using multiple linear regression (GA-MLR) with backward method by SPSS software was used for obtaining properties. The analytical powers of the established theoretical models were discussed using leave-one-out (LOO) cross-validation technique. A multi-parametric equation containing maximum three descriptors with suitable statistical qualities was obtained for predicting the studied properties.


2018 ◽  
Vol 233 ◽  
pp. 1-8 ◽  
Author(s):  
Seyed Sajjad Hosseini ◽  
Farsad Nadjafi ◽  
Mohammad Hassan Asareh ◽  
Hassan Rezadoost

OCL ◽  
2021 ◽  
Vol 28 ◽  
pp. 11
Author(s):  
Nesrain Farhan ◽  
Nadia Salih ◽  
Jumat Salimon

The seeds of Nigella sativa L. (Ranunculaceae), commonly known as black cumin seeds and Habat Al-barkah in Saudi Arabia, are used extensively for flavouring and medicinal purposes. This work reported the study of physiochemical properties of Saudi black cumin seed oil (BCSO). The results of hexane extraction showed that black cumin seeds are rich in oil (43.7%). All the oil samples show high saponification values and low unsaponification values. High iodine values (122.7 mg/100 g) showed high degree of unsaturation (86%) for Saudi BCSO with about 60% of dominant linoleic acid (C18:2). The volatile compounds presence in Saudi BCSO were extracted using steam distillation method and analyzed using gas chromatography mass spectrometer (GC/MS). The results showed that the volatile compounds such as p-cymene (31.50 ± 0.51%) and thymoquinone (25.35 ± 0.37%) were dominantly high in Saudi BCSO. Other compounds such as 3,5-dimethyl cyclohexanol, α-thujene, carvacrol, paeonol and longifolene were also present. Vitamin E was analyzed using High performance liquid chromatography (HPLC)-fluorescence method. The total concentrations of vitamin E were 451 ppm. The Saudi BCSO showed high content of linoleic acid (59.8%). The HPLC results showed that major triacylglycerols (TAGs) of Saudi BCSO were 1-oleoyl-2,3-dilinoleoylglycerol (OLL; 37.7 ± 0.4%) and 1,2,3-trilinoleylglycerol (LLL; 35.9 ± 0.3%). On the other hand, minor TAGs present were 1-palmitoyl-2,3-dilinoleylglycerol (PLL; 6.7 ± 0.9%), 1,2,3-trioleylglycerol (OOO; 6.4 ± 0.5%) and 1,2-dioleyl-3-linoleylglycerol (OOL; 5.7 ± 1.1%). The Saudi BCSO exhibited specific physicochemical properties and might be used for medicinal applications.


2021 ◽  
Vol 3 (4) ◽  
pp. 04-13
Author(s):  
Irfat Ara ◽  
Mudasir Maqbool ◽  
Ginenus Fekadu ◽  
Tawseef Ahmad Hajam ◽  
Mohmad Amin Dar

Nigella sativa L. (Family: Ranunculaceae; commonly known as black cumin) is an annual herb. N. sativa is cultivated and distributed all over India, especially in Punjab, Himachal Pradesh, Gangetic plains, Bihar, Bengal, Assam and Maharashtra. Among the traditional remedies, prescriptions of Nigella sativa for the treatment of various diseases are well-known since the prehistoric era. Therapeutic effects of Nigella sativa are thought to be due to nigellone and thymoquinone contents. The reported pharmacological properties include protection against disease and chemical-induced renal and hepatic toxicity, anti-inflammatory, analgesic, antipyretic, anti-microbial and antineoplastic activities. The oil decreases blood pressure, cholesterol, triglycerides, and glucose and increases respiration, hemoglobin and packed cell volume. In the traditional system of medicine, black cumin seeds are effective against cough, bronchitis, asthma, chronic headache, migraine, dizziness, chest congestion, dysmenorrheal, obesity, diabetes, paralysis, hemiplegia, back pain, infection, inflammation, rheumatism, hypertension and gastrointestinal problems such as dyspepsia, flatulence, dysentery, and diarrhea. In this review, we will elaborate about this wonder herb having miraculous effects.


Biomolecules ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1874
Author(s):  
Yuri Yoshioka ◽  
Shinichi Matsumura ◽  
Masanori Morimoto

The deodorant activity of black cumin (Nigella sativa L.) seed, a spice used to flavor curry and vegetable foods in Southwest Asia, against garlic (Allium sativum L.) organosulfur compounds related to human malodor was evaluated. Black cumin seed essential oil showed remarkable deodorant activity against garlic essential oil. The mode of action of this deodorant activity was presumed to be that black cumin seed essential oil covalently reacted with the organosulfur compounds in garlic. Therefore, thymoquinone, which is a major constituent in black cumin seed essential oil, and allyl mercaptan, which is one of the organosulfur compounds produced by cutting garlic, were reacted in vitro, and the products were purified and elucidated using spectroscopic data. As a result, these substances were identified as different allyl mercaptan adducts to dihydrothymoquinone. This chemical reaction was presumed to play a key role in the deodorant activity of black cumin seed essential oil.


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