Cold pressed carrot (Daucus carota subsp. sativus) seed oil

Cold-pressed seed oil from twelve commercially produced cactus pear cultivars was assessed for oil yield, fatty acid composition, physicochemical properties, quality and stability. Large differences in oil content, fatty acid composition and physicochemical properties (IV, PV, RI, tocopherols, ORAC, % FFA, OSI and induction time) were observed. Oil content ranged between 2.51% and 5.96% (Meyers and American Giant). The important fatty acids detected were C16:0, C18:0, C18:1c9 and C18:2c9,12, with C18:2c9,12, the dominating fatty acid, ranging from 58.56-65.73%, followed by C18:1c9, ranging between 13.18-16.07%, C16:0, which ranged between 10.97 - 15.07% and C18:0, which ranged between 2.62-3.18%. Other fatty acids such as C14:0, C16:1c9, C17:0, C17:1c10, C20:0, C18:3c9,12,15 and C20:3c8,11,14 were detected in small amounts. The quality parameters of the oils were strongly influenced by oil content, fatty acid composition and physicochemical properties. Oil content, PV, % FFA, RI, IV, tocopherols, ORAC and ρ-anisidine value were negatively correlated with OSI. C18:0; C18:1c9; C18:2c9,12; MUFA; PUFA; n-6 and PUFA/SFA were also negatively correlated with OSI. Among all the cultivars, American Giant was identified as the paramount cultivar with good quality traits (oil content and oxidative stability).

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Chemical Characteristics and Antioxidant Content Properties of Cold Pressed Seed Oil of Wild Milk Thistle Plant Grown in Jordan

Pakistan Journal of Nutrition ◽

10.3923/pjn.2014.67.78 ◽

2014 ◽

Vol 13 (2) ◽

pp. 67-78 ◽

Cited By ~ 9

Author(s):

I.R. Dabbour ◽

K.M. Al-Ismail ◽

H.R. Takruri ◽

F.S. Azzeh

Keyword(s):

Seed Oil ◽

Chemical Characteristics ◽

Milk Thistle ◽

Antioxidant Content ◽

Plant Grown ◽

Cold Pressed ◽

Thistle Plant

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Debittering of cold pressed grapefruit seed oil by metal‐organic framework adsorbents

Journal of Food Processing and Preservation ◽

10.1111/jfpp.14390 ◽

2020 ◽

Vol 44 (4) ◽

Cited By ~ 1

Author(s):

Emin Yılmaz ◽

Zeliha Şadan Ege

Keyword(s):

Seed Oil ◽

Metal Organic Framework ◽

Metal Organic ◽

Cold Pressed ◽

Organic Framework

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Phenolics Dynamics and Infrared Fingerprints during the Storage of Pumpkin Seed Oil and Thereof Oleogel

Processes ◽

10.3390/pr8111412 ◽

2020 ◽

Vol 8 (11) ◽

pp. 1412

Author(s):

Andreea Pușcaș ◽

Andruța Mureșan ◽

Floricuța Ranga ◽

Florinela Fetea ◽

Sevastița Muste ◽

...

Keyword(s):

Phenolic Compounds ◽

Seed Oil ◽

Intermolecular Forces ◽

Syringic Acid ◽

Bioactive Molecules ◽

Pumpkin Seed ◽

Ambient Storage ◽

Oxidative Processes ◽

Pumpkin Seed Oil ◽

Cold Pressed

Cold-pressed pumpkin seed oil is a valuable source of bioactive molecules, including phenolic compounds. Oleogels are designed for trans and saturated fats substitution in foods, but also demonstrate protection and delivery of bioactive compounds. Consequently, the present work aimed to assess individual phenolic compounds dynamics and infrared fingerprints during the ambient storage of pumpkin seed oil and thereof oleogel. For oleogels production, a 5% ternary mixture of waxes, composed by 3% beewax, 1% sunflower wax and 1% rice bran wax, was used. Phenolic compounds were extracted by traditional liquid–liquid extraction, followed by HPLC-MS quantification. FTIR (400–4000 cm−1) was used for characterizing and monitoring the oxidative stability of all samples and for the evaluation of intermolecular forces between oleogelator mixtures and oil. Specific wavenumbers indicated oxidative processes in stored sample sets; storage time and sample clustering patterns were revealed by chemometrics. Isolariciresinol, vanillin, caffeic and syringic acids were quantified. The main changes were determined for isolariciresinol, which decreased in liquid pumpkin seed oil samples from 0.77 (T1) to 0.13 mg/100 g (T4), while for oleogel samples it decreased from 0.64 (T1) to 0.12 mg/100 g (T4). However, during the storage at room temperature, it was concluded that oleogelation technique might show potential protection of specific phenolic compounds such as syringic acid and vanillin after 8 months of storage. For isolariciresinol, higher amounts are registered in the oleogel (0.411 mg/100 g oil) than in the oil (0.37 mg/100 g oil) after 5 months of ambient temperature storage (T3). Oxidation processes occurred after 5 months storage for both oil and oleogel samples.

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