Chemical characterization and biological activities of Simmondsia chinensis (Link) C. K. Schneid seeds oil

Abstract

The chemical composition, main physicochemical properties, and biological activities of Simmondsia chinensis (S. chinensis) seeds oil were studied. The results revealed that the physiochemical characteristics of S. chinensis seeds oil were as follows: acid values 1.15 mg KOH/g, peroxide values 8.00 meq O2 Kg-1, iodine values 80.00 g/100 g of oil and saponification values 92.00 mg KOH/g, phenolic content 50.91 mg gallic acid equivalents/g extract. Gas chromatography analysis indicated that eicosenoic (55.50 %), erucic (20.43 %) and oleic (19.01 %) acids were the most abundant, saturated and unsaturated, fatty acids in the oil. Moreover, the evaluation of their antioxidant (DPPH, TAC), antibacterial, antidiabetic and acetylcholinesterase evinced interesting results. Seeds of S. chinensis constitute a substitute source for stable vegetable oil and protein with regard to nutritional and industrial applications.

LC-ESI-MS/MS Phenolic Profile of Volutaria lippii (L.) Cass. Extracts and Evaluation of Their In Vitro Antioxidant, Antiacetylcholinesterase, Antidiabetic, and Antibacterial Activities

“…Antioxidant activity in food can be expressed in terms of radical scavenging ability using free radicals. DPPH assay is extensively used to determine the antioxidant property of many plant extracts [25, 26]. It is well known that free radicals have an important role in the autoxidation of unsaturated lipids in foodstuffs and in oxidative cell damage in the human organism resulting in a variety of pathological diseases [27].…”

“…Generally, plant extracts were usually more active against Gram-positive than Gram-negative bacteria [25]. This could be explained by the fact that Gram-positive strains have only a peptidoglycan layer which is not a selective barrier to plant extracts [26]. The antibacterial activity of V. lippii could be assigned to the presence of a high concentration of phenolic compounds which were reported in previous works to exhibit a powerful antimicrobial effect [22, 26].…”

CONTENIDO DE ÁCIDOS GRASOS, PROPIEDADES FISICOQUÍMICAS Y ACTIVIDAD ANTIOXIDANTE DE LOS ACEITES DE Chenopodium quinoa Willd y Amaranthus caudatus EXTRAÍDOS POR FLUIDOS SUPERCRÍTICOS

“…Estos valores son superiores al de otros aceites como el de jojoba (215 ± 0,15 μg/ mL) 23 , aceite de semillas de uva (283,3 ± 0,9 μg/ mL) 24 , en tanto que es inferior a aceites como el de aguacate (6200 ± 0,4 μg/ mL), salvado de arroz (500 μg/ mL) 25 .…”

Jojoba Oil: An Updated Comprehensive Review on Chemistry, Pharmaceutical Uses, and Toxicity

“…The liquid wax could help dissolve the solid wax coatings around the bacilli due to the chemical structure similarity between jojoba waxes and the fats forming the sheath of the bacilli, which prevents the penetration of the antibiotics. A combination of antibiotics and jojoba oil as penetrating oil may be effective in treating those serious diseases [ 6 , 46 ]. Furthermore, alcoholic extracts of the jojoba root have demonstrated antimicrobial activity against several pathogens, including Bacillus cereus , Salmonella typhimurium , and Candida albicans .…”

“…Jojoba oil has also demonstrated a beneficial effect against hyperglycemia-induced oxidative stress. Cyanogenic glycosides and other components found in the seed extract markedly decreased ROS and caspase-3 activation and improved antioxidant defense, inhibiting p22phox and increasing nuclear factors—this activity may serve as a useful tool for combating diabetes [ 46 , 47 ]. Manoharan et al support this theory, having conducted a report in 2016 that discussed the potential of jojoba oil to inhibit or manage diabetes due to its antioxidant properties.…”