scholarly journals Variation of Squalene Content of Oils Obtained from Olives Harvested at Different Times from Gemlik and Kilis Yaglık Cultivars in Kilis Region

2021 ◽  
Author(s):  
Hakan ÇETİNKAYA ◽  
İbrahim Samet GÖKÇEN
Keyword(s):  
Squalene Content

scholarly journals Comparative Study of Chemical Compositions and Antioxidant Capacities of Oils Obtained from 15 Macadamia (Macadamia integrifolia) Cultivars in China

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1031
Author(s):  
Xixiang Shuai ◽  
Taotao Dai ◽  
Mingshun Chen ◽  
Ruihong Liang ◽  
Liqing Du ◽  
...  
Keyword(s):  
Palmitoleic Acid ◽  
Linear Regression Analysis ◽  
Monounsaturated Fatty Acids ◽  
Multiple Linear Regression Analysis ◽  
Chemical Compositions ◽  
Macadamia Integrifolia ◽  
Antioxidant Capacities ◽  
Squalene Content ◽  
First Time ◽  
Insight Into

The planting area of macadamia in China accounted for more than one third of the world’s planted area. The lipid compositions, minor components, and antioxidant capacities of fifteen varieties of macadamia oil (MO) in China were comparatively investigated. All varieties of MO were rich in monounsaturated fatty acids, mainly including oleic acid (61.74–66.47%) and palmitoleic acid (13.22–17.63%). The main triacylglycerols of MO were first time reported, including 19.2–26.1% of triolein, 16.4–18.2% of 1-palmitoyl-2,3-dioleoyl-glycerol, and 11.9–13.7% of 1-palmitoleoyl-2-oleoyl-3-stearoyl-glycerol, etc. The polyphenol, α-tocotrienol and squalene content varied among the cultivars, while Fuji (791) contained the highest polyphenols and squalene content. Multiple linear regression analysis indicated the polyphenols and squalene content positively correlated with the antioxidant capacity. This study can provide a crucial directive for the breeding of macadamia and offer an insight into industrial application of MO in China.

scholarly journals Fatty Acid Profile, Lipid Quality and Squalene Content of Teff (Eragrostis teff (Zucc.) Trotter) and Amaranth (Amaranthus caudatus L.) Varieties from Ethiopia

2021 ◽  
Vol 11 (8) ◽  
pp. 3590
Author(s):  
Endale Amare ◽  
Luca Grigoletto ◽  
Viviana Corich ◽  
Alessio Giacomini ◽  
Anna Lante
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Functional Foods ◽  
Unsaturated Fatty Acids ◽  
Fatty Acid Content ◽  
Gluten Free ◽  
Amaranthus Caudatus ◽  
Lipid Quality ◽  
Squalene Content

Teff and amaranth are gluten-free cereals with significant nutritional and health benefits. However, they are underutilized and known in limited areas of the world. The present study evaluated the fatty acid profile, crude fat, squalene content and lipid quality of seven teff (Eragrostis teff (Zucc.) Trotter) and three amaranth (Amaranthus caudatus L.) varieties from Ethiopia. The fat content ranged from 2.92 to 3.34% (averaging 3.06%) and from 8.28 to 9.21% (averaging 8.6%) for teff and amaranth, respectively. Linoleic, oleic and palmitic acid were predominant in both teff and amaranth, accounting for approximately 89 and 85% of total fatty acid content, respectively. The saturated to unsaturated fatty acids ratio ranged from 0.30 to 0.32 in teff and from 0.38 to 0.40 in amaranth. The parameters used to describe lipid quality, i.e., thrombogenicity and atherogenicity indices, show that teff was superior over amaranth, suggesting a preference for the former for healthy food formulation. The squalene content of white amaranth (486.54 mg/100 g DM) was significantly higher than that of the other two varieties (327.54 and 340.81 mg/100 g DM for red and brown amaranth, respectively). In general, both gluten-free crops should be exploited for their potential as ingredients for the development of novel functional foods.

scholarly journals Estimation of Sebum Production Rates in Man by Measurement of the Squalene Content of Skin Biopsies

1981 ◽  
Vol 77 (4) ◽  
pp. 358-360 ◽  
Author(s):  
Donald T. Downing ◽  
Mary Ellen Stewart ◽  
John S. Strauss
Keyword(s):  
Production Rates ◽  
Squalene Content ◽  
Sebum Production ◽  
Skin Biopsies

scholarly journals Varietal and Geographical Discrimination of Greek Monovarietal Extra Virgin Olive Oils Based on Squalene, Tocopherol, and Fatty Acid Composition

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3818 ◽  
Author(s):  
Theano Mikrou ◽  
Elisavet Pantelidou ◽  
Niki Parasyri ◽  
Andreas Papaioannou ◽  
Maria Kapsokefalou ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Geographical Origin ◽  
Arachidic Acid ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Virgin Olive Oils ◽  
Squalene Content ◽  
Geographical Discrimination ◽  
Increasing Demand ◽  
Of Greece

Extra virgin olive oil (EVOO) is an important component of the Mediterranean diet and a highly priced product. Despite the strict legislation to protect it from fraudulent practices, there is an increasing demand to characterize EVOOs and evaluate their authenticity. For this purpose, 68 monovarietal EVOOs, originating from three regions of Greece (Peloponnese, Crete, and Lesvos) and two local cultivars (Koroneiki and Kolovi), were obtained during the harvesting period of 2018–2019. Fatty acids, squalene, and tocopherols were determined chromatographically according to official methods in order to study the effect of cultivar and geographical origin. Squalene and γ-tocopherol differed significantly amongst the cultivars tested. Koroneiki samples exhibited higher squalene content than Kolovi samples, whereas the opposite was observed for γ-tocopherol. The tocopherol level was highly geographical dependent, with EVOOs from Peloponnese displaying the highest concentration of α-tocopherol, whereas the content of γ-tocopherol was significantly higher in samples from Lesvos. Unsupervised and supervised multivariate analysis resulted in a satisfactory grouping of EVOOs according to cultivar. γ-Tocopherol, squalene, and the majority of fatty acids were the most discriminant variables, with γ-tocopherol, linoleic, linolenic, and gadoleic acid being present at higher levels in samples from the Kolovi cultivar. Koroneiki samples were characterized with higher levels of squalene, palmitic, palmitoleic, and arachidic acid.

Fatty Acid Composition and Squalene Content of the Marine MicroalgaSchizochytrium mangrovei

2004 ◽  
Vol 52 (5) ◽  
pp. 1196-1200 ◽  
Author(s):  
Yue Jiang ◽  
King-Wai Fan ◽  
Raymond Tsz-Yeung Wong ◽  
Feng Chen
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Squalene Content

Dynamics of squalene content in different tissues of Ashwagandha ( Withania somnifera L. Dunal) during its growth phases

2016 ◽  
Vol 84 ◽  
pp. 375-380 ◽  
Author(s):  
Rekha S. Dhar ◽  
Shabnam Khan ◽  
Ravi K. Khajuria ◽  
Yashbir S. Bedi
Keyword(s):  
Withania Somnifera ◽  
Growth Phases ◽  
Squalene Content ◽  
Different Tissues

The squalene content of plant tissues

1972 ◽  
Vol 11 (1) ◽  
pp. 417-419 ◽  
Author(s):  
R.W. Lewis
Keyword(s):  
Plant Tissues ◽  
Squalene Content

scholarly journals Rhodosporidium Sp. DR37: A Novel Strain For Production of Squalene in Optimized Cultivation Conditions

2021 ◽  
Author(s):  
Shahryar Shakeri ◽  
Farshad Khoshbasirat ◽  
Mahmood Maleki
Keyword(s):  
Total Lipid ◽  
Large Scale ◽  
Oleaginous Yeast ◽  
Mangrove Ecosystem ◽  
Cultivation Conditions ◽  
Carotenoid Production ◽  
First Report ◽  
Squalene Content

Abstract Background: Rhodosporidium strain, a well-known oleaginous yeast, has been widely used as a platform for lipid and carotenoid production. However, the production of squalene for application in lipid-based biofuels is not reported in this strain. Here, we isolated and identified newly strain of Rhodosporidium sp. DR37 and investigated its potential for production of squalene under various cultivation conditions.Results: In the present study, Rhodosporidium sp. DR37 was isolated from mangrove ecosystem and its potential for squalene production was assessed. When Rhodosporidium sp. DR37 was cultivated on non-optimized medium (20 g/L glucose, 5 g/L peptone, 5 g/L YE, 15 g/L agar, seawater (50% v/v), pH 7, 30 °C), 64 mg/L of squalene was produced. Significantly, use of optimized medium (20 g/L sucrose, 5 g/L peptone, seawater (20 % v/v), pH 7, 25 °C) allowed highest squalene accumulation in Rhodosporidium sp. DR37 (619 mg/L). The maximum squalene content was obtained as 21.6% of total lipid in comparison to the non-optimized medium (13.9% of total lipid).Conclusions: This study is the first report to employ marine oleaginous Rhodosporidium sp. DR37 for accumulation of squalene in optimized medium. Our findings provide the potential of Rhodosporidium sp. DR37 for production of squalene as well as lipid and carotenoids for biofuel applications in large scale.

scholarly journals Differences in Seed Weight, Amino Acid, Fatty Acid, Oil, and Squalene Content in γ-Irradiation-Developed and Commercial Amaranth Varieties (Amaranthus spp.)

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1412
Author(s):  
Monika Szabóová ◽  
Michal Záhorský ◽  
Ján Gažo ◽  
Jeroen Geuens ◽  
Ann Vermoesen ◽  
...  
Keyword(s):  
Seed Weight ◽  
Nutritional Value ◽  
Seed Traits ◽  
Γ Irradiation ◽  
Human Diet ◽  
Alternative Crop ◽  
Squalene Content ◽  
Amaranth Seed ◽  
Amaranthus Spp ◽  
Nutritional Potential

Grain amaranth is known as an alternative crop with exclusive nutritional value and health benefits. The purpose of this study was to investigate the effect of gamma irradiation on quantitative and qualitative amaranth seed traits, including 1000-seed weight, amino acids, fatty acids content, oil, and squalene yield. Two Slovak mutant varieties “Pribina” (A. cruentus) and “Zobor” (A.hypochondriacus x A. hybridus) were evaluated and compared to nonirradiated controls Ficha (A. cruentus L.) and K-433 (A. hypochondriacus x A. hybridus) and commercial varieties, Aztec (A. cruentus L.), Plainsman and Koniz (A. hypochondriacus x A. hybridus). Mutant varieties, “Pribina” and “Zobor”, showed superior 1000-seed weight performance compared to all investigated amaranth samples. The change in quantitative seed trait was accompanied by significantly higher oil and squalene content compared to commercial varieties. Moreover, significantly higher content of essential linoleic acid was detected in mutant variety “Zobor”. The present findings suggest that seeds of irradiation-derived varieties have high nutritional potential and can be used as a supplementary crop in the human diet.

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