scholarly journals Physicochemical properties and chemical composition of Seinat (Cucumis melo var. tibish) seed oil and its antioxidant activity

2014 ◽  
Vol 65 (1) ◽  
pp. e008 ◽  
Author(s):  
S. Azhari ◽  
Y. S. Xu ◽  
Q. X. Jiang ◽  
W. S. Xia
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Cucumis Melo ◽  
Seed Oil

scholarly journals Chemical Composition, Oxidative Stability, and Antioxidant Activity of Allium ampeloprasum L. (Wild Leek) Seed Oil

2020 ◽  
Vol 69 (5) ◽  
pp. 413-421 ◽  
Author(s):  
Imededdine Arbi Nehdi ◽  
Hassen Mohamed Sbihi ◽  
Chin Ping Tan ◽  
Saud I. Al-Resayes ◽  
Umer Rashid ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Oxidative Stability ◽  
Seed Oil ◽  
Allium Ampeloprasum

scholarly journals A First Approach to the Chemical Composition and Antioxidant Potential of Guinea-Bissau Propolis

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984413 ◽  
Author(s):  
Soraia I. Falcão ◽  
Mélissa Lopes ◽  
Miguel Vilas-Boas
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Natural Product ◽  
Broad Spectrum ◽  
Biological Activities ◽  
Chemical Diversity ◽  
Antioxidant Potential ◽  
Phenolic Composition ◽  
First Time

Propolis is a natural product derived from plant resins collected by honeybees and used in the beehive as a construction and defensive material. The broad spectrum of biological activities is dependent on the chemical diversity of its composition which is determined by the floral sources at the site of collection. For the first time, the chemical composition of Guinean propolis as well as its physicochemical properties, phenolic composition, and antioxidant activity was assessed. Eight compounds were identified through LC/DAD/ESI-MS n , mostly isoflavonoids, resembling Nigerian and Brazilian red propolis from the genus Dalbergia.

Physicochemical properties, colour, chemical composition, and antioxidant activity of Spanish Quercus honeydew honeys

2019 ◽  
Vol 245 (9) ◽  
pp. 2017-2026 ◽  
Author(s):  
M. José Jara-Palacios ◽  
Francisco José Ávila ◽  
M. Luisa Escudero-Gilete ◽  
Antonio Gómez Pajuelo ◽  
Francisco J. Heredia ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties

scholarly journals The influence of the species on the quality, chemical composition and antioxidant activity of pumpkin seed oil

OCL ◽  
2020 ◽  
Vol 27 ◽  
pp. 40
Author(s):  
Ihssan Boujemaa ◽  
Sara El Bernoussi ◽  
Hicham Harhar ◽  
Mohamed Tabyaoui
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Seed Oil ◽  
Pumpkin Seed ◽  
A Value ◽  
Species Effect ◽  
Pumpkin Seeds ◽  
Antioxidant Potency ◽  
Pumpkin Seed Oil

Oilseed pumpkin seeds are known to be rich in oil and nutrients. Their content in bioactive components gives them some assets that make them beneficial for human health. Although commonly consumed as a snack, pumpkin seeds are ready to claim more uses. The identification of pumpkin species is a major resource in this study. Thus, we worked with three pumpkin species: Cucurbita maxima (CMa), Cucurbita moschata (CMo) and Cucurbita pepo (CP). The species effect on the chemical composition, the content of bioactive compounds and the antioxidant activity was studied. As a result, the analysis of pumpkin seed oil revealed a polyunsaturated fatty acids (PUFAs) content ranging from 52.23% to 57.65%. Our study also revealed that this oil was a good source of phenolic compounds, in particular CMa with a value of 27.52 mg gallic acid equivalents per gram of methanolic extract and 633.51 mg/kg of total tocopherols, which gives it a very strong antioxidant character. In addition, it showed a high antioxidant potency (126.20 ± 20.44) μg/ml for CMa. In this respect, it can be said that the species effect can be a very important factor influencing the nutritional quality of pumpkin seed oil.

scholarly journals Chemical Composition, Physicochemical Characteristics, and Nutritional Value ofLannea kerstingiiSeeds and Seed Oil

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Judicaël Thomas Ouilly ◽  
Patrice Bazongo ◽  
Adjima Bougma ◽  
Nèbpawindé Kaboré ◽  
Anne Mette Lykke ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Nutritional Value ◽  
Seed Oil ◽  
Stability Index ◽  
Acid Value ◽  
Industrial Applications ◽  
Total Oxidation ◽  
Alternative Source

The chemical composition, main physicochemical properties, and nutritional value of seed flour and seed oil ofLannea kerstingiiwere studied. The results indicated that seeds contained 3.61% moisture, 57.85% fat, 26.39% protein, 10.07% carbohydrates, and 2.08% ash. Potassium was the predominant mineral, followed by magnesium and calcium. The essential amino acids were at higher levels than the estimated amino acid requirements of FAO/WHO/UNU except for lysine. Fatty acid composition showed that oleic acid was the major fatty acid, followed by palmitic, linoleic, and stearic acids. Physicochemical properties of the seed oil were melting point, 19.67°C; refractive index (25°C), 1.47; iodine value, 60.72/100 g of oil; peroxide value, 0.99 meq. O2/kg of oil;p-anisidine value, 0.08; total oxidation (TOTOX) value, 2.06; oxidative stability index (120°C), 52.53 h; free fatty acids, 0.39%; acid value, 0.64 mg of KOH/g of oil; saponification value, 189.73. Total amount of tocopherols, carotenoids, and sterols was 578.60, 4.60, and 929.50 mg/kg of oil, respectively.γ-Tocopherol (82%), lutein (80%), andβ-sitosterol (93%) were the most abundant forms of tocopherols, carotenoids, and sterols, respectively. Seeds ofL. kerstingiiconstitute an alternative source of stable vegetable oil and protein for nutritional and industrial applications.

Sign in / Sign up

Export Citation Format

Share Document