Physicochemical Properties of Plukenetia volubilis L. Seeds and Oxidative Stability of Cold-pressed Oil (Green Nut Oil)

Takeyama, Emiko; Fukushima, Masako

doi:10.3136/fstr.19.875

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…Thermal and photo oxidation of CPO were previously determined using different techniques (Kiralan and Ramadan, 2016;Wroniak et al, 2016, Takeyama andFukushima, 2013). In addition, headspace analysis can also be used for that purpose by determining some key volatile compounds which are markers for oxidation (Gromadzka et al, 2008;Vujasinovic et al, 2010;Lutterodt et al, 2011;Ramadan, 2013).…”

Section: Introductionmentioning

confidence: 99%

Stability and volatile oxidation compounds of grape seed, flax seed and black cumin seed cold-pressed oils as affected by thermal oxidation

et al. 2019

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The old-pressed oils (CPO) from grape seeds (GSO), flax seeds (FSO) and black cumin seeds (BSO) were analyzed for their fatty acid profiles, tocopherols, total phenolics, bioactives and phenolic compositions. The stability of CPO under thermal oxidation conditions was evaluated. The main fatty acid in FSO was linolenic acid (56.5% of total fatty acids); while GSO and BSO were rich in linoleic acid, which accounted for 66.8 and 56.8%, respectively. GSO was rich in ?-tocopherol (123.0 mg/kg), while ?-tocopherol was a prevalent isomer in FSO and BSO (137.9 and 128.9 mg/kg, respectively). The total phenolic contents in the oils ranged from 554 mg GAE/kg oil (FSO) to 1140 mg GAE/kg oil (BSO). Luteolin, dihydroquercetin and benzoic acids were the dominant bioactives and phenolics in FSO, GSO and BSO, respectively. Based on the oxidative stability index (OSI) value, BSO showed the highest value (6.14 h) among the other oils. The oxidative stability of FSO and BSO were higher than GSO according to peroxide value (PV) and conjugated diene (CD) values of the oils during storage at 60 °C. Hexanal, 2,4-heptadienal and (E,E)-2,4-heptadienal were the major volatile oxidation compounds (VOC) in FSO. Hexanal and (E)-2-heptanal were the main identified VOC in the GSO and BSO under the same oxidation conditions.

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Section: Introductionmentioning

confidence: 99%

Stability and volatile oxidation compounds of grape seed, flax seed and black cumin seed cold-pressed oils as affected by thermal oxidation

et al. 2019

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“…Additionally, the effects of green nut oil (GNO), also known as sacha inchi oil—oil extracted from the seeds of the evergreen climbing plant Plukenetia volubilis , were investigated in SAMP8 mice. GNO contains approximately 50% α-linolenic acid [18,19]. Human and other mammals can synthesize DHA from α-linolenic acid through a progressive series of enzymatic elongation and desaturation reactions [2,3].…”

Section: Introductionmentioning

confidence: 99%

Dietary Intake of Green Nut Oil or DHA Ameliorates DHA Distribution in the Brain of a Mouse Model of Dementia Accompanied by Memory Recovery

et al. 2019

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Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid, has significant health benefits. Previous studies reported decreased levels of DHA and DHA-containing phosphatidylcholines in the brain of animals suffering from Alzheimer’s disease, the most common type of dementia; furthermore, DHA supplementation has been found to improve brain DHA levels and memory efficiency in dementia. Oil extracted from the seeds of Plukenetia volubilis (green nut oil; GNO) is also expected to have DHA like effects as it contains approximately 50% α-linolenic acid, a precursor of DHA. Despite this, changes in the spatial distribution of DHA in the brain of animals with dementia following GNO or DHA supplementation remain unexplored. In this study, desorption electrospray ionization imaging mass spectrometry (DESI-IMS) was applied to observe the effects of GNO or DHA supplementation upon the distribution of DHA in the brain of male senescence-accelerated mouse-prone 8 (SAMP8) mice, a mouse model of dementia. DESI-IMS revealed that brain DHA distribution increased 1.85-fold and 3.67-fold in GNO-fed and DHA-fed SAMP8 mice, respectively, compared to corn oil-fed SAMP8 mice. Memory efficiency in SAMP8 mice was also improved by GNO or DHA supplementation. In summary, this study suggests the possibility of GNO or DHA supplementation for the prevention of dementia.

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“…Hickory nut oil extracts were collected as a single sample at the end of each run in 100 mL amber glass bottles. Samples of hickory nut were pressed twice and collected oil was centrifuged (CR20B2; Hitachi, Tokyo, Japan) at 3,000xg for 15 min (8). Supernatants were stored in separate amber bottles and were stored at −20 o C until use.…”

Section: Methodsmentioning

confidence: 99%

Hypolipidemic effects of hickory nut oil using cold pressure extraction

Zhang

Yao

et al. 2016

Food Sci Biotechnol

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Optimal conditions of hickory nut oil cold press technology were studied. L(3) orthogonal experiment results showed that optimal conditions were a pressing pressure of 15 MPa, pressing temperature of 50°C, pressing cycle of 4 s, and stop cycle of 9 s. Fatty acid compositions were determined using GC-MS and hypolipidemic effects in mice were investigated. Compared to a high fat diet group, hickory nut oil administration decreased serum and visceral total cholesterol, triacylglycerol, and serum low density lipoprotein cholesterol levels. Serum high density lipoprotein cholesterol values were increased. Hickory nut oil can be used as a valuable bioactive source of natural hypolipidemic compounds.

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Physicochemical Properties of Plukenetia volubilis L. Seeds and Oxidative Stability of Cold-pressed Oil (Green Nut Oil)

Cited by 13 publications

References 10 publications

Stability and volatile oxidation compounds of grape seed, flax seed and black cumin seed cold-pressed oils as affected by thermal oxidation

Stability and volatile oxidation compounds of grape seed, flax seed and black cumin seed cold-pressed oils as affected by thermal oxidation

Dietary Intake of Green Nut Oil or DHA Ameliorates DHA Distribution in the Brain of a Mouse Model of Dementia Accompanied by Memory Recovery

Hypolipidemic effects of hickory nut oil using cold pressure extraction

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