Optimization of ultrasonic-assisted extraction of oil from the seed kernels and isolation of monoterpene glycosides from the oil residue of Paeonia lactiflora Pall.

Liu, Pu; Xu, Yifan; Gao, Xiao-dan; Zhu, Xiaodan; Du, Mingzhu; Wang, Yixiang; Deng, Ruixue; Gao, Jiayu

doi:10.1016/j.indcrop.2017.04.013

Cited by 54 publications

(32 citation statements)

References 24 publications

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“…[4] Linoleic, linolenic, oleic, palmitic, and stearic acids are the main components of fatty acids (FAs) in the seeds of herbaceous peony, and they account for 97.01 % of total fatty acids. [5] P. lactiflora seeds are enriched in unsaturated fatty acids (UFAs; 85 %) and have a relatively low content of saturated fatty acids (SFAs; 15 %). [6] UFAs are important for human health because of abundant biological activities, [7] which contribute to retardation of progression of some chronic diseases, tumors, [8] breast cancer, [9] inflammatory, and cardiovascular diseases.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Yan¹,

Xie²,

Wang³

et al. 2019

Chemistry & Biodiversity

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Herbaceous peony has been widely cultivated in China due to its substantial ornamental and medicinal value. In the present study, the phenotypic characteristics, total fatty acid (FA) content, and nine FA compositions of herbaceous peony seeds from 14 populations belonging to six species and one subspecies were determined by normal test and gas chromatography/mass spectrometry (GC/MS). The results showed that the phenotypic characteristics of seeds varied dramatically among species. The concentrations of five major FAs in seed oils were as follows: linoleic acid (173.95–236.51 μg/mg), linolenic acid (227.82–302.71 μg/mg), oleic acid (135.32–208.81 μg/mg), stearic acid (6.52–11.7 μg/mg), and palmitic acid (30.67–47.64 μg/mg). Correlation analysis demonstrated that oleic acid had the highest partial correlation coefficient with total FAs and might be applied to develop a model of phenotypic characteristics. FAs were significantly influenced by the following environmental factors: latitude, elevation, and annual average temperature. Based on the FA levels in the seed oils, clustering analysis divided 14 populations into two clusters. It was found that the average contents of oleic acid, linoleic acid, and total FAs in cluster I (147.16 μg/mg, 200.31 μg/mg, and 671.24 μg/mg, respectively) were significantly lower than those in cluster II (196.65 μg/mg, 220.16 μg/mg, and 741.78 μg/mg, respectively). Cluster I was perfectly consistent with subsect. Foliolatae, while cluster II was in good agreement with subsect. Dissectifoliae. Therefore, the FA composition of wild herbaceous peony seed oil might be used as a chemotaxonomic marker.

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Section: Introductionmentioning

confidence: 99%

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Yan¹,

Xie²,

Wang³

et al. 2019

Chemistry & Biodiversity

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“…The extraction yield decreased rapidly as the ultrasound time was above 40 min. Some researchers proved that the yield of extraction was decreased when the ultrasonic power or the ultrasonic time exceeds a certain limit (Li et al, ; Liu et al, ; Perrier et al, ; Sun et al, ). The thermal effect might lead to decomposition of the oils, and the extraction yield slightly decreased (Li et al, ; Sun et al, ; Zhang et al, ).The chemical effect of decomposition of some active natural products was likely occurred owing to the negative of effect ultrasonic treatment for an extended time (Chanioti and Constantina, ).…”

Section: Resultsmentioning

confidence: 99%

Combining Ultrasound and Microwave to Improve the Yield and Quality of Single‐Cell Oil from Mortierella isabellina NTG₁₋₁₂₁

Zhou

Sun

et al. 2018

J Americ Oil Chem Soc

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In this article, to increase the extraction efficiency and quality of single-cell oil (SCO) from Mortierella isabellina NTG 1-121 (MIN) in the SCO extraction, ultrasound in combination with microwave was applied. The best extraction conditions (microwave power 400 W; microwave time 3.7 min; ultrasonic time 40.5 min; ultrasonic power 500 W; and the material to solvent ratio 1:12.3 [w/v]) were achieved at room temperature of 25 AE5 C, using response surface methodology (RSM). Under these conditions, the extraction yield of SCO was up to 92.24% and the SCO yield was 178.13 AE0.17 mg g −1 (wet cell). Compared with ultrasound-assisted extraction (UAE) and acid-heating extraction (AHE), the quality and yield of SCO obtained using the ultrasonic-assisted/microwaveassisted extraction (UMAE) were improved. The present study suggests that UMAE can be an alternative for the extraction of SCO from MIN. The oil is rich in oleic acid (ca. 43.98%), linoleic acid (ca. 11.56%), and gamma linolenic acid (ca. 11.38%), which is comparable to the fatty-acid composition of several edible oils.

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“…Ultrasonic assistance is known to reduce the reaction time for biodiesel conversion. The 60 minutes reaction time required using ultrasonic assistance is significantly lower compared to conventional solvent transesterification of WCG (12 hours for optimum conversion) [35]. Temperature and time affect the transesterification reaction as it is kinetically controlled.…”

Section: Esterification and Transesterification Processmentioning

confidence: 99%

“…However, the extraction yield decreases after this amplitude. Liu et al [35] reported a reduction of oil yield after a specific ultrasonic power threshold and attributed this to intense heating resulting in decomposition and volatility of the oil. The optimum condition resulted in an oil extraction of 17.75 wt.…”

Section: Effect Of Ultrasonic Amplitude and Period On Wcg Lipid Yieldmentioning

confidence: 99%

Resource Recovery from Waste Coffee Grounds Using Ultrasonic-Assisted Technology for Bioenergy Production

et al. 2020

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Biodiesel is a proven alternative fuel that can serve as a substitute for petroleum diesel due to its renewability, non-toxicity, sulphur-free nature and superior lubricity. Waste-based non-edible oils are studied as potential biodiesel feedstocks owing to the focus on the valorisation of waste products. Instead of being treated as municipal waste, waste coffee grounds (WCG) can be utilised for oil extraction, thereby recovering an energy source in the form of biodiesel. This study evaluates oil extraction from WCG using ultrasonic and Soxhlet techniques, followed by biodiesel conversion using an ultrasonic-assisted transesterification process. It was found that n-hexane was the most effective solvent for the oil extraction process and ultrasonic-assisted technology offers a 13.5% higher yield compared to the conventional Soxhlet extraction process. Solid-to-solvent ratio and extraction time of the oil extraction process from the dried waste coffee grounds (DWCG) after the brewing process was optimised using the response surface methodology (RSM). The results showed that predicted yield of 17.75 wt. % of coffee oil can be obtained using 1:30 w/v of the mass ratio of DWCG-ton-hexane and 34 min of extraction time when 32% amplitude was used. The model was verified by the experiment where 17.23 wt. % yield of coffee oil was achieved when the extraction process was carried out under optimal conditions. The infrared absorption spectrum analysis of WCG oil determined suitable functional groups for biodiesel conversion which was further treated using an ultrasonic-assisted transesterification process to successfully convert to biodiesel.Coffee is the world's second-largest traded liquid commodity, after oil, with approximately 8 million tons of coffee produced each year [13]. A large amount of heat energy is used to convert green coffee beans into brown roasted beans in the brewing process, generating large amounts of volatile organic compounds (VOCs) [14]. The enormous demand for this beverage also produces a large quantity of residual waste after brewing. Every 1 ton of coffee beans produces 650 kg of coffee residue after brewing, known as WCG [15]. The global coffee industry produced an estimate of 9.34 million tons of waste in 2017, which was either incinerated, dumped in landfills or composted [16]. Every year Australia produces an estimated 75,000 tonnes of used ground coffee waste, and 93% of cafes send their WCGs to landfill. The annual domestic coffee consumption in Australia has reached almost 1.9 million 60 kg bags. On average, Australians consumed around 1.92 kilograms of coffee per person in 2017 [17]. The grounds that are used to make coffee are used only once and then immediately discarded. With rising rates of consumption, waste residues from the coffee industry (by-products from harvesting, processing, roasting and brewing stages of coffee production and processing) represent a challenge to worldwide directives aiming to reduce landfill volume. The inherent toxicity of several constituents within coffee...

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Optimization of ultrasonic-assisted extraction of oil from the seed kernels and isolation of monoterpene glycosides from the oil residue of Paeonia lactiflora Pall.

Cited by 54 publications

References 24 publications

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Combining Ultrasound and Microwave to Improve the Yield and Quality of Single‐Cell Oil from Mortierella isabellina NTG₁₋₁₂₁

Resource Recovery from Waste Coffee Grounds Using Ultrasonic-Assisted Technology for Bioenergy Production

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Optimization of ultrasonic-assisted extraction of oil from the seed kernels and isolation of monoterpene glycosides from the oil residue of Paeonia lactiflora Pall.

Cited by 54 publications

References 24 publications

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Phenotypic Characteristics and Fatty Acid Composition of Seeds from Different Herbaceous Peony Species Native to China

Combining Ultrasound and Microwave to Improve the Yield and Quality of Single‐Cell Oil from Mortierella isabellina NTG1−121

Resource Recovery from Waste Coffee Grounds Using Ultrasonic-Assisted Technology for Bioenergy Production

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Combining Ultrasound and Microwave to Improve the Yield and Quality of Single‐Cell Oil from Mortierella isabellina NTG₁₋₁₂₁