Process optimization and characterization of fragrant oil from red pepper (<i>Capsicum annuum</i>L.) seed extracted by subcritical butane extraction

Gu, Lingbiao; Pang, Huili; Lu, Ke-Ke; Liu, Hua‐Min; Wang, Xuede; Guangyong, Qin

doi:10.1002/jsfa.7992

Cited by 38 publications

(27 citation statements)

References 45 publications

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“…This phenomenon could be explained by a balance being attained between butane and oil over a period of time. Similar trends were also found in other oil extraction processes [ 15 , 26 ]. For yield and processing cost consideration, 30 min were sufficient for the extraction of seed oil.…”

Section: Resultssupporting

confidence: 87%

“…Therefore, it was concluded that 40 °C was sufficient to achieve the highest oil yield from the fenugreek seed. Similar yield trend as a function of temperature was observed in the extraction of other materials [ 26 ]. However, the highest oil yields produced from diverse material were usually achieved at different temperatures due to their distinctive biochemical composition [ 27 ].…”

Section: Resultssupporting

confidence: 78%

“…As inferred from Figure 1 A, the oil yield continuously increased from 3.80% to 7.04% as the temperature increased from 10 to 40 °C, however, the oil yield remained constant with further increases in temperature. The density of the butane reduced with the increasing temperature and resulted in the decrease of the oil solubility; however, the pressure of the oil dissolved in subcritical butane increased simultaneously with the increased temperature, which improved the solubility of oil [ 26 ]. Therefore, it was concluded that 40 °C was sufficient to achieve the highest oil yield from the fenugreek seed.…”

Section: Resultsmentioning

confidence: 99%

“…The highest oil yield was observed with an extraction time and raw material particle size of approximately 32.80 min and 0.26 mm, respectively. According to literature [ 26 ], a maximum yield of red pepper seed oil was obtained at an extraction time of 68.65 min. Similar results have been also obtained for the subcritical fluid extraction of seed oil from Nitraria tangutorum [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

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Extraction of Fenugreek (Trigonella foenum-graceum L.) Seed Oil Using Subcritical Butane: Characterization and Process Optimization

Liu

et al. 2017

Molecules

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In this study, the subcritical butane extraction process of fenugreek seed oil was optimized using response surface methodology with a Box-Behnken design. The optimum conditions for extracted oil from fenugreek seed was as follows: extraction temperature of 43.24 °C, extraction time of 32.80 min, and particle size of 0.26 mm. No significant differences were found between the experimental and predicted values. The physical and chemical properties of the oil showed that the oil could be used as edible oil. Fatty acid composition of oils obtained by subcritical butane under the optimum conditions and by accelerated solvent extraction showed negligible difference. The oils were rich in linoleic acid (42.71%–42.80%), linolenic acid (26.03%–26.15%), and oleic acid (14.24%–14.40%). The results revealed that the proposed method was feasible, and this essay shows the way to exploit fenugreek seeds by subcritical butane extraction under the scope of edible oils.

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Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Extraction of Fenugreek (Trigonella foenum-graceum L.) Seed Oil Using Subcritical Butane: Characterization and Process Optimization

Liu

et al. 2017

Molecules

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“…n‐Hexane extraction (HE) is generally considered as the best extraction method for edible oils in laboratory. The HE could be driven by the oil characteristics and induce partial alteration of minor components to effecting antioxidation and other functions . Subcritical butane extraction (SBE) has several advantages compared with traditional processing method, which is not only safe and efficient but also causes no damage to the bioactive compounds of materials .…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Processing Methods of Iron Walnut Oils (Juglans sigillata): Lipid Yield, Lipid Compositions, Minor Components, and Antioxidant Capacity

Gao

Liu

Jin

et al. 2018

Euro J Lipid Sci & Tech

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A comparison study is performed on different processing methods of iron walnut oils (Juglans sigillata). Processing methods here include cold‐pressing (CP), roasting‐pressing (RP), n‐hexane extraction (HE), subcritical butane extraction (SBE), and supercritical carbon dioxide extraction. The lipid yield, physicochemical properties, lipid compositions, minor components, and antioxidant capacity of iron walnut oils are analyzed. Different processing methods do not affect the fatty acid compositions and triacylglycerol compositions of iron walnut oil. The lipid yields of pressing process (42.63–44.12%) is lower than that of the extraction process (48.13–63.44%). By multiple linear regression analysis, the results about the correlation between minor components and antioxidant capacity show that the RP process with high number of polyphenols (52.91 mg kg−1) indicates the highest antioxidant activity (DPPH: 574.73, FRAP: 111.80, ABTS: 498.53, ORAC: 523.34 µmol TE kg−1, respectively). Considering health and nutritional value of oil, RP can be a promising method for future iron walnut oil processing. Practical Applications: Iron walnut (Juglans sigillata) is a special walnut variety in China. In this study, five different processing methods of iron walnut oil are evaluated. The new iron walnut oil processing method is beneficial to the development of iron walnut oil. The authors show that lipid composition of tested oils is relatively stable, while their minor components contents are significantly different. Oil antioxidant capacity is mainly related to polyphenols. Roasting‐pressing can obviously improve the antioxidant activity of the iron walnut oil. This information has important directive to the nutritional value and industrial production of iron walnut oil. Iron walnut oil is obtained from Juglans sigillata by different processing methods, including cold‐pressing, roasting‐pressing, n‐hexane extraction, subcritical butane extraction, and supercritical carbon dioxide extraction. The lipid yield, physicochemical properties, lipid compositions, minor components, and antioxidant capacity (DPPH, FRAP, ABTS, and ORAC) are analyzed. Models deduced by multiple linear regression are recognized as acceptable for predicting the antioxidant capacity of the iron walnut oil.

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Comparison of extraction methods for active biomolecules using sub-critical dimethyl ether and n-butane

Ciulla

Canale

Wolicki

et al. 2022

Eur Food Res Technol

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Several extraction methods are used to isolate natural compounds, and recent approaches utilize subcritical or supercritical extraction media. In this paper we compare extraction methods based on subcritical eluents, dimethyl ether (sC-DME) and n-butane (sC-nB), under mild conditions, using coffee beans and powder as an exemplary raw material. The parameters to be controlled to improve the extraction are considered, and the resulting data discussed. The results obtained display higher selectivity of sC-DME for caffeine (1.9%w/w sC-DME vs. 1.7%w/w sC-nB, on dry extract) and a good yield (0.479 mg/g of caffeine from green coffee beans) compared to, e.g., supercritical carbon dioxide (SC-CO2), which shows 0.32 mg/g of caffeine at higher pressure and temperature (25 MPa, 40 °C). We also discuss some technical implementations for optimizing the use of sub-critical eluents through proper combinations of pressure and temperature. We show that extraction processes based on sub-critical eluents are easy to operate and efficient, and can be easily automated.

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Process optimization and characterization of fragrant oil from red pepper (Capsicum annuumL.) seed extracted by subcritical butane extraction

Abstract: The results indicated that the method is appropriate for the preparation of fragrant red pepper seed oil, and the oil is suitable for used as edible oil. © 2016 Society of Chemical Industry.

Cited by 38 publications

References 45 publications

Extraction of Fenugreek (Trigonella foenum-graceum L.) Seed Oil Using Subcritical Butane: Characterization and Process Optimization

Extraction of Fenugreek (Trigonella foenum-graceum L.) Seed Oil Using Subcritical Butane: Characterization and Process Optimization

Comparison of Different Processing Methods of Iron Walnut Oils (Juglans sigillata): Lipid Yield, Lipid Compositions, Minor Components, and Antioxidant Capacity

Comparison of extraction methods for active biomolecules using sub-critical dimethyl ether and n-butane

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