Supercritical CO2 extraction of grape seed oil: Effect of process parameters on the extraction kinetics

2015 ◽  
Vol 98 ◽  
pp. 33-43 ◽  
Author(s):  
Kurabachew Simon Duba ◽  
Luca Fiori
Keyword(s):  
Process Parameters ◽  
Supercritical Co2 ◽  
Seed Oil ◽  
Grape Seed ◽  
Supercritical Co2 Extraction ◽  
Extraction Kinetics ◽  
Grape Seed Oil

scholarly journals Effect of drying method on supercritical CO2 extraction of grape seed oil

Poljoprivreda ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Mario Jakobović ◽  
Stela Jokić ◽  
Melita Lončarić ◽  
Snježana Jakobović ◽  
Krunoslav Aladić ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Sample Preparation ◽  
Supercritical Co2 ◽  
Seed Oil ◽  
Grape Seed ◽  
Cabernet Sauvignon ◽  
Drying Method ◽  
Supercritical Co2 Extraction ◽  
White Variety ◽  
Grape Seed Oil

Aim of this study was to monitor the influence of drying method (naturally and chamber drying) and different sample preparation on supercritical CO2 extraction of oil from three grape seed varieties (Graševina, Zweigelt, Cabernet Sauvignon). The highest oil content was obtained from naturally dried screened and washed seeds of red variety Cabernet Sauvignon (14.85%) and lowest from chamber dried screened seeds of white variety Graševina (7.67%). Peroxide value ranged from 0.36 to 1.77 mmol O2/kg oil, free fatty acids 0.28-8.0%, and insoluble impurities 0.05-0.28%. Determined fatty acids were palmitic (6.98-11.58%), stearic (3.82-6.59%), oleic (14.90-19.97%) and linoleic acid (61.82-71.96%) in oil obtained from naturally dried seeds and 6.84-8.68%, 4.12-5.73%, 15.10-20.18% and 67.88-70.76% in oil from chamber dried seeds, respectively. In defatted cakes after supercritical CO2 extraction, protein and fibre content ranged from 8.17 to 9.85% and 34.58 to 43.96%, respectively. According to ANOVA results, sample preparation and drying method had statistically significant influence on grape seed oil extraction.

scholarly journals Kinetics of Grape Seed Oil Epoxidation in Supercritical CO2

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1490
Author(s):  
Juan Catalá ◽  
Jesús Manuel García-Vargas ◽  
María Jesús Ramos ◽  
Juan Francisco Rodríguez ◽  
María Teresa García
Keyword(s):  
Supercritical Co2 ◽  
Seed Oil ◽  
Grape Seed ◽  
Effect Of Temperature ◽  
Side Reactions ◽  
Secondary Products ◽  
Yield Data ◽  
Grape Seed Oil ◽  
Wide Range ◽  
Kinetics Of

The epoxidation of grape seed oil in supercritical CO2, to the best of our knowledge, has been only superficially described in the literature, apart from a short communication and our own previous published work on the topic. In this work, a thorough study of the performance of the supercritical epoxidation of grape seed oil is performed in a wide range of conditions, and the kinetic parameters of the supercritical epoxidation of vegetable oils are reported for the first time in the literature. The experimental work has covered a 40–60 °C temperature range at 150 bar, sampling during a period of 48 h. The nature and extent of the side reactions and secondary products obtained have been evaluated, being hydrolysis products and their oligomerization derivatives the major by-products. Reaction rate constants (10−2 h−1 order) and activation energy parameters were finally calculated from the experimental conversion and epoxy yield data to establish the effect of temperature on the kinetics of the process.

Analysis and optimization of grape seed oil epoxidation in supercritical CO2

2021 ◽  
Vol 168 ◽  
pp. 105070
Author(s):  
Juan Catalá ◽  
Jesús Manuel García-Vargas ◽  
María Jesús Ramos ◽  
Juan Francisco Rodríguez ◽  
María Teresa García
Keyword(s):  
Supercritical Co2 ◽  
Seed Oil ◽  
Grape Seed ◽  
Grape Seed Oil

scholarly journals Supercritical CO2 extraction of Moroccan argan (Argania spinosa L.) oil: Extraction kinetics and solubility determination

2021 ◽  
Vol 46 ◽  
pp. 101458
Author(s):  
Adil Mouahid ◽  
Isabelle Bombarda ◽  
Magalie Claeys-Bruno ◽  
Sandrine Amat ◽  
Emmanuelle Myotte ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Oil Extraction ◽  
Supercritical Co2 Extraction ◽  
Extraction Kinetics ◽  
Argania Spinosa ◽  
Solubility Determination

Trigonella foenum-graecum L. Seed Oil Obtained by Supercritical CO2 Extraction

2012 ◽  
Vol 89 (12) ◽  
pp. 2269-2278 ◽  
Author(s):  
Renming Yang ◽  
Honglun Wang ◽  
Nianhua Jing ◽  
Chenxu Ding ◽  
Yourui Suo ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Seed Oil ◽  
Supercritical Co2 Extraction ◽  
Trigonella Foenum Graecum ◽  
Trigonella Foenum Graecum L

scholarly journals AMELIORATIVE EFFECTS OF GRAPE SEED OIL ON CHROMIUM-INDUCED NEPHROTOXICITY AND OXIDATIVESTRESS IN RATS

2020 ◽  
Vol 57 (3) ◽  
Author(s):  
Sahar Hassan Orabi ◽  
Sherif Mohamed Shawky
Keyword(s):  
Dna Damage ◽  
Hexavalent Chromium ◽  
Seed Oil ◽  
Potassium Dichromate ◽  
Serum Levels ◽  
Grape Seed ◽  
Renal Tissue ◽  
Male Rats ◽  
Group I ◽  
Grape Seed Oil

The current study focused on investigating the renoprotective effects of grape seed oil (GSO) against hexavalent chromium (Cr (VI))-induced nephrotoxicity. A total of 40 male rats were randomly divided into four groups: group I served as the control group, group II received 1000 mg/L potassium dichromate (353.5 mg/L Cr(VI)) in drinking water for 12 weeks, group III received 3.7 g/kg body weight/day GSO orally for 12 weeks, and group IV received GSO together with potassium dichromate for 12 weeks. Cr(VI) significantly increased serum levels of urea, creatinine, potassium and glucose. In addition, Cr(VI) increased MDA levels and induced renal tissue damage and DNA damage. On the other hand, Cr(VI) decreased serum levels of sodium and antioxidant defence system [reduced glutathione (GSH) and catalase (CAT)]. However, treatment with GSO prevented elevation levels of serum urea, creatinine, potassium and glucose. In addition, GSO enhanced sodium level, renal tissue antioxidant defense system due to its curative effect ameliorated particularly oxidative stress, renal tissue and DNA damage. In conclusion, these results demonstrate that GSO is a promising nephroprotective agent against Cr(VI)-induced nephrotoxicity.Key words: grape seed oil; hexavalent chromium; nephrotoxicity; DNA damage BLAŽILNI UČINKI OLJA GROZDNIH PEŠK PRI TOKSIČNI OBREMENITVI LEDVIC TER VPLIV NA OKSIDATIVNI STRES PODGAN, POVZROČEN S KROMOM Povzetek: Študija je bila osredotočena na proučevanje zaščitnih učinkov olja grozdnih pešk (GSO) pri toksični obremenitvi ledvic, povzročeni s heksavalentnim kromom (Cr (VI)). Štirideset samcev podgan je bilo naključno razdeljenih v štiri skupine: skupina I - kontrolna skupina, skupina II, ki je v pitni vodi 12 tednov prejemala 1000 mg/L kalijevega dikromata (353,5 mg/L Cr (VI)), skupina III, ki je peroralno 12 tednov prejemala 3,7 g/kg telesne mase/dan GSO ter skupina IV, ki je 12 tednov prejemala GSO skupaj s kalijevim dikromatom. Cr(VI) je znatno zvišal serumske ravni sečnine, kreatinina, kalija in glukoze v serumu. Poleg tega je Cr(VI) zvišal raven MDA in povzročil poškodbe ledvičnega tkiva in poškodbe DNK. Po drugi strani je Cr(VI) znižal serumsko raven natrija in antioksidativnega obrambnega sistema, zmanjšal raven glutationske peroksidaze in katalaze. Dodajanje GSO poskusnim živalim je preprečilo zvišanje ravni sečnine v serumu, kreatinina, kalija, natrija in glukoze. Poleg tega je GSO izboljšal obrambni sistem antioksidantov ledvičnega tkiva. Zaradi svojega zdravilnega učinka je izboljšal zlasti oksidativni stres, poškodbe ledvičnega tkiva in DNK. Rezultati kažejo, da je GSO obetavno zaščitno sredstvo za ledvica pri toksični obremenitvi, povzročeni s Cr(VI).Ključne besede: olje grozdnih pešk; heksavalentni krom; nefrotoksičnost; poškodba DNK

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