Ultrasound pre-treatment combined with microwave-assisted hydrodistillation of essential oils from Perilla frutescens (L.) Britt. leaves and its chemical composition and biological activity

Chen, Fengli; Li, Shasha; Zhao, Ziyue; Gao, Wenbin; Ma, Yibo; Wang, Xiaoxia; Yan, Shuang-Mei; Luo, Du‐Qiang

doi:10.1016/j.indcrop.2019.111908

Cited by 73 publications

(33 citation statements)

References 48 publications

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“…However, the increase in yield was 7.69%, 16.67%, 37.66% and 23.38% for the peels exposed to ultrasound for 30, 60, 90 and 120 min, respectively. Ultrasound pre-treatment before extraction is capable of enhancing the extraction efficiency and shortening the processing time [ 26 ]. In all experiments, the extraction yield was ( p ≤ 0.05) time dependent.…”

Section: Resultsmentioning

confidence: 99%

Valorization of Sweet Lime Peel for the Extraction of Essential Oil by Solvent Free Microwave Extraction Enhanced with Ultrasound Pretreatment

et al. 2020

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Essential oils of sweet lime peel, a waste by-product in the juice industry, were extracted using the vacuum assisted solvent free microwave extraction (VASFME) method. The effects of microwave output power (500–1000 W) and extraction time (20–30 min) on the essential oils yield and antimicrobial property were investigated. Optimal conditions were observed at 797.844 W microwave output power and 30 min extraction time. The essential oils yield and antimicrobial property under these conditions were 0.792 ± 0.03% and 18.25 ± 1.45 mm, respectively, which agrees with the predicted values of 0.757% and 16.50 mm. The essential oils were extracted at optimized conditions and analyzed through GCMS for compound identification. A total of 49 compounds were identified, with limonene content (43.47%) being the highest among all sweet lime peel oil compounds. Moreover, the sweet lime peels were subjected to ultrasound pre-treatment before microwave extraction. The ultrasound pre-treatment helped to increase the essential oils yield from 0.84 to 1.06% as the treatment time increased from 30 to 90 min. The increase in yield was 37.66% more compared to VASFME at 90 min treatment time.

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Section: Resultsmentioning

confidence: 99%

Valorization of Sweet Lime Peel for the Extraction of Essential Oil by Solvent Free Microwave Extraction Enhanced with Ultrasound Pretreatment

et al. 2020

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“…Generation of very high turbulence and inter‐particle collision due to the breakdown of vapor bubbles close to the cell walls, which persuades diffusion rate, thus improved solvent diffusion into the cell. An implosion of a bubble near the cell surface intensifies the mass transfer because a fast‐moving liquid stream disrupts the cell wall, causing an increased release of extractable compounds (Chen et al, 2020). An additional presumption might be the pressure expansion inside the gland itself (Chemat et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Effect of ultrasound‐assisted hydrodistillation on extraction kinetics, chemical composition, and antimicrobial activity of Citrus jambhiri peel essential oil

Priyadarshi

Kashyap

Gadhave

et al. 2021

J Food Process Engineering

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Citrus jambhiri processing generates 40% peel waste with considerable waste management constraints. Interestingly, these peels are a rich source of essential oil. Hence, in this study, the essential oil was extracted from fresh peels and peel powder (PP) of C. jambhiri using hydrodistillation (HD) and ultrasound‐assisted hydrodistillation (USHD). Kinetic study, physicochemical, antimicrobial, and chemical composition of the essential oil obtained from PP and fresh peel with albedo (FPA) and without albedo (FPWA) using HD and USHD was studied. The kinetic study was further experimentally validated using the first and second‐order kinetic model. The integrated equations were used to test the fitting of the model with obtained experimental data. Kinetics of oil extraction from PP using USHD showed that extraction process best fitted in second‐order kinetic model with a high coefficient of determination (R2 = .999), yield (3.63%) and extraction rate constant (K2 = 0.0306), showing that it validated the process thoroughly. The physicochemical properties of essential oils obtained from both extraction methods fall within an acceptable range. Specific gravity, acid value, and total phenolic content showed no significant difference between both extraction methods while others differed significantly. The antioxidant and antimicrobial activity increased with ultrasound treatment. GC–MS analysis of different oil samples revealed that 10 compounds extracted from each extraction with the highest amount of d‐limonene (61.29%) were obtained from PP using USHD. USHD stands as a fast, efficient, and economical method for extracting essential oil and can be a potential source for nutraceutical and pharmaceutical industries. Practical Application Citrus jambhiri peels are discarded as waste material. Its comprehensive utilization is urgently needed. Essential oil from citrus peels is an important biologically active substance containing tens to hundreds of bioactive compounds with health‐promoting characteristics. Ultrasound‐assisted hydrodistillation is a promising extraction technique to enhance product quality and reduce production time and consumed energy. Application of the novel proposed methods combined with conventional or alternative to increase the extraction rate on an industrial scale could be recommended.

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“…Moreover, the long treatment time may cause unexpected changes in chemical composition and smell. Hence, innovative extraction technologies (e.g., microwave-assisted extraction, ultrasonic-assisted extraction, enzymatic-assisted extraction, supercritical fluid extraction, and other combined extractions) have been developed for essential oils in the past decade [ 50 , 51 , 52 , 53 , 54 ], which can not only enhance the extraction efficiency in a shorter time, but also maintain or improve the quality of essential oils.…”

Section: Litsea Cubeba Essential Oil and Citral-based Derivativesmentioning

confidence: 99%

An Overview on Total Valorization of Litsea cubeba as a New Woody Oil Plant Resource toward a Zero-Waste Biorefinery

Qiu

Lan

et al. 2021

Molecules

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With the increasing global demand for edible oils and the restriction of arable land minimum in China, woody oil plants have gradually become the optimal solution to cover the shortage of current edible oil supply and to further improve the self-sufficiency rate. However, due to the lack of knowledge and technique, problems like “how to make full use of these plant resources?” and “how to guide consumers with reasonable data?” limit the development of woody oilseed industry towards a sustainable circular economy. In this review, several emerging unique woody oil plants in China were introduced, among which Litsea cubeba as a new woody oil plant was highlighted as a reference case based on its current research progress. Unlike other woody oil plants, essential oil rather than oil from Litsea cubeba has always been the main product through the years due to its interesting biological activities. Most importantly, its major component, citral, could be the base for other synthesized perfume compounds with added value. Moreover, the sustainable biorefinery of large amounts of waste residual after Litsea cubeba essential oil processing is now technically feasible, which could inspire a total valorization pathway for other woody oil plants to make more competitive plant-based products with both economic, social, and ecological benefits.

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Ultrasound pre-treatment combined with microwave-assisted hydrodistillation of essential oils from Perilla frutescens (L.) Britt. leaves and its chemical composition and biological activity

Cited by 73 publications

References 48 publications

Valorization of Sweet Lime Peel for the Extraction of Essential Oil by Solvent Free Microwave Extraction Enhanced with Ultrasound Pretreatment

Valorization of Sweet Lime Peel for the Extraction of Essential Oil by Solvent Free Microwave Extraction Enhanced with Ultrasound Pretreatment

Effect of ultrasound‐assisted hydrodistillation on extraction kinetics, chemical composition, and antimicrobial activity of Citrus jambhiri peel essential oil

An Overview on Total Valorization of Litsea cubeba as a New Woody Oil Plant Resource toward a Zero-Waste Biorefinery

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