scholarly journals Oil Content, Fatty Acid Composition, Physicochemical Properties, and Antioxidant Activity of Seed Oils of Ten Moroccan Pomegranate Cultivars

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Sarah Loukhmas ◽  
Ebrahim Kerak ◽  
Sara Elgadi ◽  
Fatima Ettalibi ◽  
Abderraouf El Antari ◽  
...  

Pomegranate seeds (Punica granatum L.) are quantitatively and qualitatively a relevant agri-food by-product which is rich in molecules beneficial to human health. In order to valorize this resource, this study aims to evaluate and to compare, for the first time, the characteristics of fruit seeds and seed oils of ten pomegranate cultivars grown in the Center of Morocco. Physical and biometric parameters of seeds, fatty acid composition, physicochemical criteria, and antioxidant activity of seed oils were determined. The results showed significant differences between the ten studied cultivars. The seeds yielded oil contents ranging from 17.59% to 24.69% and presented high contents of polyunsaturated fatty acids (PUFAs) exceeding 89%. The major fatty acid was punicic acid, which represented more than 80% of fatty acids, while other fatty acids such as linoleic acid, oleic acid, and palmitic acid could be considered a minority. Oils showed yellow colour due to the contents of chlorophyll (0.12–1.87 mg/kg) and pheophytin (0.39–3.87 mg/kg) and presented high antioxidant activity (IC50: 0.69–1.80 mg/mL). Therefore, the studied pomegranate seeds had a very good oil yield, and these oils have presented an optimal fatty acid composition and high levels of antioxidant activity. Thus, they could be useful in the formulation of novel foods or used as preservatives and functional components in food industry.

Author(s):  
Jie Li, Zai-Hua Wang

Wild Paeonia ludlowii is considered as a traditional ornamental plant, but its flowers and seed oils are edible with important economic values, and the variation of nutrients, fatty acid composition in wild populations is scarcely known. Flowers and seeds of P. ludlowii were collected from two wild populations for evaluating the nutrients in flowers, composition of fatty acids in seed oils and the antioxidant activity. The flowers contained high composition of proteins, carbohydrates, amino acids, total flavonoids, phenolic compounds and essential minerals. Seed oil yield reached up to 21.95% using supercritical CO2 fluid extraction, and it contained 14 fatty acids (up to 93.35 g/100g seed oil), especially the unsaturated fatty acids (oleic acid, linoleic acid and α-linolenic acid) was up to 88.69% with low ω6/ω3 ratios of 0.58. The antioxidant capacity can be arranged in the order of trolox > flower extracts > seed oil according to the DPPH and ABTS free radical assay. Contents of nutrient in flowers and fatty acids in seed oils were significantly different between two wild populations due to the impact of different growing environments. These results indicate that flowers and seed oils of P. ludlowii are potential food resources in human diets.


2016 ◽  
Vol 71 (3-4) ◽  
pp. 73-77 ◽  
Author(s):  
Bertrand Matthaus ◽  
Mehmet Musa Özcan ◽  
Fahad Al Juhaimi

Abstract Seed samples of some rape and canola cultivars were analysed for oil content, fatty acid and tocopherol profiles. Gas liquid chromotography and high performance liquid chromotography were used for fatty acid and tocopherol analysis, respectively. The oil contents of rape and canola seeds varied between 30.6% and 48.3% of the dry weight (p<0.05). The oil contents of rapeseeds were found to be high compared with canola seed oils. The main fatty acids in the oils are oleic (56.80–64.92%), linoleic (17.11–20.92%) and palmitic (4.18–5.01%) acids. A few types of tocopherols were found in rape and canola oils in various amounts: α-tocopherol, γ-tocopherol, δ-tocopherol, β-tocopherol and α-tocotrienol. The major tocopherol in the seed oils of rape and canola cultivars were α-tocopherol (13.22–40.01%) and γ-tocopherol (33.64–51.53%) accompanied by α-T3 (0.0–1.34%) and δ-tocopherol (0.25–1.86%) (p<0.05). As a result, the present study shows that oil, fatty acid and tocopherol contents differ significantly among the cultivars.


1964 ◽  
Vol 42 (3) ◽  
pp. 560-564 ◽  
Author(s):  
Mary J. Chisholm ◽  
C. Y. Hopkins

Seed oils of nine species of Cucurbitaceae were analyzed by gas chromatography and other techniques. The oil of Ecballiumelaterium yielded 22% of punicic acid; Cucumisdipsaceus and Cucurbitaficifolia had the ordinary palmitic–oleic–linoleic composition; a variety of Momordicacharantia had 57% of α-eleostearic acid. Occurrence of punicic acid as the major acid of Trichosanthesanguina was confirmed. No evidence could be found for the existence of an isomer of linoleic acid in Telfairiapedata oil. The fatty acid composition was determined quantitatively for the above oils and for those of Cucumismelo, Lagenariasiceraria, and Luffacylindrica. The 4-bromophenacyl esters of α-eleostearic and punicic acids were prepared.


Author(s):  
K A Alabi

Fatty acids were extracted from Thevetia peruviana and Hura crepitans seed oils. The quantitative determination of fatty acid composition was carried out for each sample by methylation and application of gas chromatograph (GC-FID). The predominant fatty acids in the T. peruviana and H. crepitans are Palmitic acid (19.10% and 21.67%), Stearic acid (7.31% and 9.66%), Oleic acid (53.40% and 26.91%) and Linoleic acid (19.03% and 36.61%) respectively. In the two oils, the ratios of unsaturated fatty acid were very high about 73% for T. peruviana and 64% for H. crepitans which is an indication that both would be very good sources of oleochemicals for polymer and other industries.


2021 ◽  
Vol 177 ◽  
pp. S126
Author(s):  
Nevena Dabetic ◽  
Vanja Todorovic ◽  
Ivana Djuricic ◽  
Sladjana Sobajic

2021 ◽  
Vol 015 (02) ◽  
pp. 103-110
Author(s):  
Taner Bozkurt ◽  
Zeynep Ergun

Pomegranate (Punica granatum) is a perennial herb with its long history and has been the symbol of health, fertility and spirituality. In addition to being consumed as fresh fruit, pomegranate is consumed as pomegranate juice, syrup, pomegranate syrup and many different product groups. In particular, pomegranate seeds, which are often produced as waste, are evaluated separately in terms of their fatty acid composition and antioxidant capacity. In this study, the fatty acid composition of pomegranate seed oils was determined by gas chromatography/mass spectrophotometry (GC/MS). Total antioxidant activity analysis was performed using DPPH (2, 2-diphenyl-1-picrylhydrazyl) method and antioxidant activity value was determined as trolox equivalent (TE). In the study, it was determined that the antioxidant capacity was 171.44 mg TE / 100g. According to GC / MS analysis, it was determined that the most dominant fatty acid was punicic Acid (68.12%). Oleic acid (8.51%), linoleic acid (6.71%) and palmitic acid (5.55%) are the highest fatty acids after punicic acid. It is clear that apart from the widespread consumption of pomegranate fruit, which is very beneficial for health, its seeds can also be used.


2019 ◽  
Vol 70 (4) ◽  
pp. 328 ◽  
Author(s):  
S. Hazrati ◽  
S. Nicola ◽  
S. Khurizadeh ◽  
A. Alirezalu ◽  
H. Mohammadi

Chrozophora tinctoria L., usually known as dyer’s Croton, Turnsole or Giradol, has been used in various medicinal and food products for many years. However, no comprehensive research has been undertaken to assess its potential as a new seed oil crop. Therefore, the current study examined the fatty acid composition, physico-chemical properties and antioxidant activity of C. tinctoria seeds, grown in the southwest of Iran. The seed oil content was found to be 26.40%. The extracted oil was analyzed for fatty acid composition using gas chromatography (GC). The results showed that unsaturated fatty acids accounted for almost 91% of the total fatty acids. Linoleic acid was the dominant fatty acid (76.68%), followed by oleic acid (13.99%) and palmitic acid (5.32%). δ-tocopherol was the major tocopherol in the oil, representing 70 mg/100 g oil. The total phenolic content (151.70 mg GAE per 100 g oil) and total flavonoid content (1.17 mg QE oil) were also determined in the extracted oil. The antioxidant activity was measured by a DPPH assay and expressed as 45% of the seed oil. Due to its high oil yield and high unsaturated fatty acid content, C. tinctoria could be regarded as a new source of edible oil.


Author(s):  
Erhan Kaplaner ◽  
Mehmet Hüseyin Singeç ◽  
Mehmet Öztürk

Edible mushrooms are one of the important food source because of their tastes, and having high concentration of fatty acids and the other nutrients. In this study, fatty acid composition and antioxidant properties of Tricholoma imbricatum and T. focale were determined. The fatty acids were analysed by GC, and GC-MS while the antioxidant activity was tested using five complimentary methods; namely, β-carotene-linoleic acid, DPPH scavenging, ABTS scavenging, CUPRAC and metal chelating assays. Eight fatty acids were determined in hexane extract, and oleic acid was the major fatty acid with 46.4% and 35.0%, respectively. Palmitic acid (12.8%, and 5.12%) and lineloic acid (28.2% and 31.0%) were also detected in high amounts. In DPPH.scavenging and ABTS·+ scavenging assays, the methanol extract of T. imbricatum (IC50: 0.12±0.01 mg/mL for both assay) showed better antioxidant activity than those of T. focale (IC50>0.8±0.01, and IC50: 0.21±0.01 mg/mL). All extracts of T. focale exhibited good activity in β-carotene-linoleic acid assay while only the hexane extract of T. imbricatum showed activity. Both mushroom indicated moderate in cupric reducing power. Since the mushrooms are nontoxic and edible, both can be used in food industry as preservatives.


1972 ◽  
Vol 92 (10) ◽  
pp. 1298-1299 ◽  
Author(s):  
SETSUKO ABURANO ◽  
GOICHI KURONO ◽  
MICHI MORIMOTO ◽  
YOSHIHIRO NISHIKAWA

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