Characteristics of Specialty Natural Micronutrients in Certain Oilseeds and Oils: Plastochromanol‐8, Resveratrol, 5‐Hydroxytryptamine Phenylpropanoid Amides, Lanosterol, Ergosterol and Cyclolinopeptides

Jin, Jun; Sheraliev, Gayrat; Xie, Dan; Zhang, Wei; Jin, Qingzhe; Wang, Xingguo

doi:10.1007/s11746-015-2771-8

Cited by 9 publications

(3 citation statements)

References 89 publications

(150 reference statements)

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“…It is worth noting that β-sitosterol was not detectable in refined camellia oil. The adsorption of sterols during bleaching and the removal of sterols during the vacuum distillation step of deodorization are considered the main reasons for the losses of β-sitosterol during the refining process [ 42 ]. The results suggested that fresh-pressed and cold-pressed technologies are more favorable for the retention of β-sitosterol.…”

Section: Resultsmentioning

confidence: 99%

Typical Characterization of Commercial Camellia Oil Products Using Different Processing Techniques: Triacylglycerol Profile, Bioactive Compounds, Oxidative Stability, Antioxidant Activity and Volatile Compounds

Zeng

Wang

Chen

et al. 2022

Foods

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The processing technique is one of the key factors affecting the quality of camellia oil. In this study, camellia oils were obtained using four different processing techniques (cold-pressed, roast-pressed, fresh-pressed, and refined), and their triacylglycerols (TAGs) profile, bioactive compound (tocopherols, sterols, squalene, and polyphenols) level, oxidative stability, and volatile compounds were analyzed and compared. To further identify characteristic components in four camellia oil products, the TAG profile was analyzed using UPLC-QTOF-MSE. Five characteristic markers were identified, including OOO (m/z 902.8151), POL (m/z 874.7850), SOO (m/z 904.8296), PPL (m/z 848.7693), PPS (m/z 852.7987). Regarding the bioactive compound level and antioxidant capacity, the fresh-pressed technique provided higher α-tocopherols (143.15 mg/kg), β-sitosterol (93.20 mg/kg), squalene (102.08 mg/kg), and polyphenols (35.38 mg/kg) and showed stronger overall oxidation stability and antioxidant capacity. Moreover, a total of 65 volatile compounds were detected and identified in four camellia oil products, namely esters (23), aldehydes (19), acids (8), hydrocarbons (3), ketones (3), and others (9), among which pressed oil was dominated by aldehydes, acid, and esters, while refined oil had few aroma components. This study provided a comprehensive comparative perspective for revealing the significant influence of the processing technique on the camellia oil quality and its significance for producing camellia oil of high quality and with high nutritional value.

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Section: Resultsmentioning

confidence: 99%

Typical Characterization of Commercial Camellia Oil Products Using Different Processing Techniques: Triacylglycerol Profile, Bioactive Compounds, Oxidative Stability, Antioxidant Activity and Volatile Compounds

Zeng

Wang

Chen

et al. 2022

Foods

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“…Specifically, samples were saponified, hexane-extracted, and, after solvent reduction, directly measured by LC-Orbitrap-HRMS. Due to the high PC-8 content in flaxseed oil (≈250 mg kg −1 oil [11] ) and rapeseed oil (up to ≈90 mg kg −1 oil [11] ), these two matrices were primarily selected by us along with other oils pressed from botanically related species. In addition, a review article of Kruk et al [12] reported the presence of considerable amounts of PC-8 in the leaves of Cecropia sp.…”

Section: Introductionmentioning

confidence: 99%

LC‐Orbitrap‐HRMS Determination of Two Novel Plastochromanol Homologues

Hammerschick,

Graf,

Vetter

2023

Molecular Nutrition Food Res

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ScopeThe antioxidant plastochromanol‐8 (PC‐8) is a tocochromanol which differs from γ‐tocotrienol in having an unsaturated side chain of eight instead of three isoprene units. The recent isolation of PC‐8 from flaxseed oil indicates the additional presence of lower shares of two previously unknown homologues, plastochromanol‐7 (PC‐7) and plastochromanol‐9 (PC‐9), which feature seven and nine isoprenoid units respectively on the γ‐chromanol backbone. Here, a fast LC‐Orbitrap‐HRMS method is applied for the determination of PC‐7 and PC‐9 in seven plant oils and a plant extract.Methods and resultsThe presence of PC‐7, PC‐8, and PC‐9 is confirmed in all eight investigated samples by LC‐Orbitrap‐HRMS analysis after saponification. PC‐8 amounts of ≈315–350 mg kg−1 in two flaxseed oils, ≈75 mg kg−1 in rapeseed oil, ≈38 mg kg−1 in camelina oil, ≈80–120 mg kg−1 in two mustard oils, ≈90 mg kg−1 in candle nut oil, and ≈900 mg kg−1 dry weight in Cecropia leaves are determined by quantification. Semi‐quantification of PC‐7 and PC‐9 indicated the presence of ≈0.1–1% of PC‐7 and PC‐9 in varied relative ratios.ConclusionThe novel plastochromanol homologues are of particular interest to researchers with focus on vitamin E and other tocochromanols because of their unexplored bioactivity.

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“…übertrifft die von α-Tocopherol um etwa das 1,5-fache [2]. PC-8 kommt hauptsächlich in Blättern und Samen von Vertretern der Pflanzenfamilien Linaceae und Brassicaceae vor, wobei die entsprechenden Pflanzenöle vergleichsweise hohe Mengen an PC-8 aufweisen (~250 mg PC-8/kg Leinöl) [3].…”

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