Chemical Properties and Oxidative Stability of Perilla Oils Obtained From Roasted Perilla Seeds As Affected by Extraction Methods

Abstract

The chemical properties and oxidative stability of perilla oils obtained from roasted perilla seeds as affected by extraction methods (supercritical carbon dioxide [SC-CO(2)], mechanical press, and solvent extraction) were studied. The SC-CO(2) extraction at 420 bar and 50 °C and hexane extraction showed significantly higher oil yield than mechanical press extraction (P < 0.05). The fatty acid compositions in the oils were virtually identical regardless of the extraction methods. The contents of tocopherol, sterol, policosanol, and phosphorus in the perilla oils greatly varied with the extraction methods. The SC-CO(2) -extracted perilla oils contained significantly higher contents of tocopherols, sterols, and policosanols than the mechanical press-extracted and hexane-extracted oils (P < 0.05). The SC-CO(2) -extracted oil showed the greatly lower oxidative stability than press-extracted and hexane-extracted oils during the storage in the oven under dark at 60 °C. However, the photooxidative stabilities of the oils were not considerably different with extraction methods.

The interventional relationship between frequent fish consumption and depression symptoms in aging adults: a randomized controlled trial

“…The extraction yield measured for EOPF was 2.1% (wt/wt). The major components of perilla oil were octacosanol, γ‐ tocopherol, and β‐sitosterol, which was consistent with the main constituents reported by Jung et al () at 30 MPa. This oil was used as a condiment to serve the fish dishes.…”

“…Perilla frutescens (L.) from the mint family, mainly cultivated in the Far East yet found in northwest Iran, consists of high amounts of ALA (Asif, ; Dönmez, ). Moreover, perilla contains both saturated (1.8–7.6%) and unsaturated (11–64%) fatty acids, with ALA as the most abundant fatty acid (Asif, ; Jung et al, ). Perilla oil demonstrated efficacious evidence to prevent depression or to delay its progression (Igarashi and Miyazaki, ; Takahashi and Ide, ).…”

Impact of different pre-treatment strategies on the quality of fatty acid composition, tocols content and metabolic syndrome related activities of Perilla frutescens seed oil

“…After incubation, 5 mL of deionized water was added and the absorbance was measured at 540 nm by a multimode spectrophotometer (DTX 880, Beckman Coulter Inc., UK) (Kazeem et al, 2013).…”

“…People have followed different extraction techniques to recover vegetable oil (Febrianto and Yang, 2011), but still more detailed research is needed to increase the quality and quantity of the product. Even though previous literatures (Jung et al, 2012;Li et al, 2014) are available about perilla oil extraction, there is no adequate information about the pre-treatment methods and their effect on extraction yield, quality of seed oil, bioactive compounds and bioactivities of the perilla seed oil. Since the extraction procedure for obtaining perilla seed oil should not compromise any features of its natural medicinal traits, the current study was conducted to compare the different pre-treatment techniques followed by hexane extraction for perilla seed oil and to evaluate the anti-diabetic properties of extracts.…”

Comparison of the Anti-Inflammatory Activities of Supercritical Carbon Dioxide versus Ethanol Extracts from Leaves of Perilla frutescens Britt. Radiation Mutant

“…SC-CO 2 extraction has several advantages over the use of organic solvents, because CO 2 is non-toxic, non-reactive, non-corrosive, and inexpensive. SC-CO 2 extraction of P. frutescens seeds has been performed previously [ 16 , 17 ], but the SC-CO 2 extraction method has not been used for the extraction of IK from P. frutescens leaves. In the present study, we investigated the optimal extraction method for the leaves of the P. frutescens radiation mutant for IK contents and anti-inflammatory activities comparing SFE with EE.…”