scholarly journals Optimization of Flash Extraction Process and Antioxidant Activity in Vitro of Ligustrum Lucidum Seed Oil

2020 ◽  
Vol 1639 ◽  
pp. 012097
Author(s):  
Guangjiao Zhou ◽  
Xuehua Feng ◽  
Donghan Ji
Keyword(s):  
Antioxidant Activity ◽  
Seed Oil ◽  
Extraction Process ◽  
Ligustrum Lucidum

scholarly journals Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 542
Author(s):  
Thi Thuy Nguyen ◽  
Lan Phuong Doan ◽  
Thu Huong Trinh Thi ◽  
Hong Ha Tran ◽  
Quoc Long Pham ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Seed Oil ◽  
Radical Scavenging ◽  
Sterol Composition ◽  
Total Phenolic ◽  
Seed Oils ◽  
Free Radical Scavenging Assay ◽  
Phytosterol Composition

This research aimed to investigate the chemical composition of seed oils extracted from three Vietnamese Dalbergia species (D. tonkinensis, D. mammosa, and D. entadoides). The fatty acid profiles and contents of tocopherols and sterols of the seed oils, and total phenolic compounds extracted from the fresh seeds were characterized using different methods. Among the examined samples, D. tonkinensis seed oils showed high contents of linoleic acid (64.7%), whereas in D. mammosa, oleic acid (51.2%) was predominant. In addition, α- and γ-tocopherol and β-sitosterol were major ingredients in the seed oils, whereas ferulic acid and rosmarinic acid are usually predominant in the seeds of these species. Regarding sterol composition, the D. entadoides seed oil figured for remarkably high content of Δ5,23-stigmastadienol (1735 mg/kg) and Δ7-stigmastenol (1298 mg/kg). In addition, extracts with methanol/water (80:20, v/v) of seeds displayed significant in vitro antioxidant activity which was determined by DPPH free radical scavenging assay.

scholarly journals Benefits of the ipowder® extraction process applied to Melissa officinalis L.: improvement of antioxidant activity and in vitro gastro-intestinal release profile of rosmarinic acid

2020 ◽  
Vol 11 (1) ◽  
pp. 722-729
Author(s):  
Valérie Bardot ◽  
Anaïs Escalon ◽  
Isabelle Ripoche ◽  
Sylvain Denis ◽  
Monique Alric ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Rosmarinic Acid ◽  
Extraction Process ◽  
Release Profile ◽  
Melissa Officinalis

The objective of this study was to evaluate the benefits of a new extraction process, the ipowder® technology, applied to Melissa officinalis L.

scholarly journals Cannabidiol Content and In Vitro Biological Activities of Commercial Cannabidiol Oils and Hemp Seed Oils

Medicines ◽  
2020 ◽  
Vol 7 (9) ◽  
pp. 57
Author(s):  
Masashi Kitamura ◽  
Yuka Kiba ◽  
Ryuichiro Suzuki ◽  
Natsumi Tomida ◽  
Akemi Uwaya ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Performance ◽  
Seed Oil ◽  
Cannabis Sativa ◽  
Biological Activities ◽  
Radical Scavenging ◽  
Seed Oils ◽  
Hemp Seed ◽  
Industrial Hemp

Background: Hemp (Cannabis sativa L.) seed contains high contents of various nutrients, including fatty acids and proteins. Cannabidiol (CBD) is a non-psychoactive compound that can be extracted from C. sativa and used for treating epilepsy and pain. Industrial hemp products, including CBD and hemp seed oils, have become increasingly popular. Some products are marketed without a clear distinction between CBD and hemp seed oils. Herein, the CBD content and biological activities of commercial CBD and hemp seed oils were examined. Methods: CBD content was measured by high-performance liquid chromatography. For in vitro antioxidant activity determination, 2,2-diphenyl-1-picrylhydrazyl and 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) radical-scavenging assays were performed. Results: The CBD concentrations in the two CBD oil samples were 18.9 ± 0.5 and 9.2 ± 0.4 mg/mL. Of the seven hemp seed oil samples, six samples contained CBD in concentrations ranging from 2.0 ± 0.1 to 20.5 ± 0.5 µg/mL, but it was not detected in one sample. Antioxidant activity was observed in both CBD oil samples. Conclusions: The results indicate that (1) CBD content varied by hemp seed oil sample and that (2) antioxidant activity could be a useful landmark for discriminating CBD oils from hemp seed oils.

scholarly journals Prickly Pear Seed Oil by Shelf-Grown Cactus Fruits: Waste or Maste?

Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 132 ◽  
Author(s):  
Vassilios K. Karabagias ◽  
Ioannis K. Karabagias ◽  
Ilias Gatzias ◽  
Anastasia V. Badeka
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Moisture Content ◽  
Seed Oil ◽  
Phenolic Content ◽  
Prickly Pear ◽  
Total Phenolic ◽  
Gravimetric Analysis ◽  
In Vitro Antioxidant Activity

The chemical composition and properties of seed oils have attracted researchers nowadays. By this meaning, the physicochemical and bioactivity profile of prickly pear seed oil (PPSO) (a product of prickly pear fruits waste) were investigated. Seeds of shelf-grown cactus fruits (Opuntia ficus indica L.) were subjected to analysis. Moisture content (gravimetric analysis), seed content (gravimetric analysis), oil yield (Soxhlet extraction/gravimetric analysis), volatile compounds (HS-SPME/GC-MS), fatty acids profile (GC-FID), in vitro antioxidant activity (DPPH assay), and total phenolic content (Folin-Cioacalteu assay) were determined. Results showed that prickly pear seeds had a moisture content of 6.0 ± 0.1 g/100 g, whereas the oil yield ranged between 5.4 ± 0.5 g/100 g. Furthermore, the PPSO had a rich aroma because of acids, alcohols, aldehydes, esters, hydrocarbons, ketones, and other compounds, with the major volatiles being 2-propenal, acetic acid, pentanal, 1-pentanol, hexanal, 2-hexenal, heptanal, 2-heptenal (Z), octanal, 2-octenal, nonanal, 2,4-decadienal (E,E), and trans-4,5-epoxy-(E)-2-decenal. Among the fatty acids, butyric, palmitic, stearic, and oleic acids were the dominant. Finally, the pure PPSO had a high in vitro antioxidant activity (84 ± 0.010%) and total phenolic content (551 ± 0.300 mg of gallic acid equivalents/L). PPSO may be then used as a beneficial by-product, in different food systems as a flavoring, antioxidant, and nutritional agent.

scholarly journals Optimization of Enzymatic-assisted Extraction of Polysaccharides from Roxburgh Rose Pomace and its Antioxidant Activity

2019 ◽  
Vol 78 ◽  
pp. 02014 ◽  
Author(s):  
Xiaoli Zhou ◽  
Guangxu Zhu ◽  
Yansheng Yang ◽  
Bin Du ◽  
Dong Lin
Keyword(s):  
Antioxidant Activity ◽  
Optimal Condition ◽  
Orthogonal Experiment ◽  
Natural Antioxidants ◽  
Extraction Process ◽  
Enzyme Concentration ◽  
Raw Material ◽  
Pharmaceutical Industries ◽  
Solid Liquid

In this experiment, at first the roxburgh rose juice was extracted and then roxburgh rose residue was taken as raw material. We have used the enzyme assisted method to study the extraction process of polysaccharides from roxburgh rose pomace. The effects of mesh number, the concentration of the enzyme, temperature and time, pH and solid-liquid ratio on the polysaccharides yield were explored by single factor experiments. And then orthogonal experiment was designed to study the optimal techniques on extracting of polysaccharides from pomace. The in vitro antioxidant activity of the obtained polysaccharides was studied. The results showed that the optimal condition of extracting polysaccharides was as follows: enzyme concentration 2.5%, enzymatic hydrolysis at 60° for 40 min, pH 4.0, mesh number were 100 and solidliquid ratio was 1:25 based on the ratio of cellulase and pectinase was 2: 1. The average polysaccharides yield of enzymatic extraction method reached (4.79±0.07) % under the optimal condition. The antioxidant activity assays in vitro revealed that polysaccharides from roxburgh rose pomace can be used as natural antioxidants in functional foods and pharmaceutical industries.

Antioxidant activity in vitro and in vivo of the polysaccharides from different varieties of Auricularia auricula

2016 ◽  
Vol 7 (9) ◽  
pp. 3868-3879 ◽  
Author(s):  
Siqi Xu ◽  
Yongjun Zhang ◽  
Kan Jiang
Keyword(s):  
Antioxidant Activity ◽  
Extraction Process ◽  
Alkali Extraction ◽  
Auricularia Auricula

In this study, five different kinds of polysaccharides (AAP1, AAP2, AAP3, AAP4, and AAP5) were extracted from different varieties ofAuricularia auriculathrough an alkali extraction process.

scholarly journals Correction: Benefits of the ipowder® extraction process applied to Melissa officinalis L.: improvement of antioxidant activity and in vitro gastro-intestinal release profile of rosmarinic acid

2020 ◽  
Vol 11 (2) ◽  
pp. 1891-1891
Author(s):  
Valérie Bardot ◽  
Anaïs Escalon ◽  
Isabelle Ripoche ◽  
Sylvain Denis ◽  
Monique Alric ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Rosmarinic Acid ◽  
Extraction Process ◽  
Release Profile ◽  
Melissa Officinalis

Correction for ‘Benefits of the ipowder® extraction process applied to Melissa officinalis L.: improvement of antioxidant activity and in vitro gastro-intestinal release profile of rosmarinic acid’ by Valérie Bardot et al., Food Funct., 2020, DOI: 10.1039/c9fo01144g.

scholarly journals Potential of Annona muricata L. seed oil: phytochemical and nutritional characterization associated with non-toxicity

2018 ◽  
Vol 69 (1) ◽  
pp. 234 ◽  
Author(s):  
L. C. Pinto ◽  
C. O. De Souza ◽  
S. A. De Souza ◽  
H. B. Da Silva ◽  
R. R. Da Silva ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Phenolic Compounds ◽  
Seed Oil ◽  
Annona Muricata ◽  
Toxicological Screening ◽  
Medicinal Use ◽  
Chloroform Methanol

The aim of this study was to evaluate the nutritional quality, phenolic compounds, fatty acid and antioxidant activity in vitro as well as a toxicological screening of A. muricata seed oil in vivo. The chemical composition and quantification of phenolic compounds were determined by the Adolfo Lutz Institute normative. The antioxidant activity was evaluated by DPPH, FRAP and ABTS methods. The oil was extracted by chloroform/ methanol and precipitated crude (AmPtO) and supernatant oils (AmSO) were obtained. The fatty acid profile was evaluated by gas chromatography and total compounds by HPLC-DAD. BALB/C mice received AmPtO and AmSO (0.5 and 1.0mL·Kg-1) for 14 days. Toxicity parameters were assessed. The major fatty acids in the oil were oleic (39.2%) and linoleic (33%). HPLC-DAD suggested the presence of acetogenins (annonacin: 595 [M-H]-), with a greater presence in AmPtO. The AmPtO group showed toxicity, which may be related to the acetogenin content in AmPtO. The AmSO group showed no toxicity and this oil has potential for food or medicinal use.

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