Optimization and scale-up process for supercritical fluids extraction of ginger oil from Zingiber officinale var. Amarum

Salea, Rinaldi; Veriansyah, Bambang; Tjandrawinata, Raymond R.

doi:10.1016/j.supflu.2016.05.035

Cited by 66 publications

(32 citation statements)

References 35 publications

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“…Different factors were selected within a feasible range based on the preliminary studies reported in earlier sections. The Taguchi technique was used to design the experiments . There are various operational factors that can affect the TPC yield – temperature, time, liquid–solid ratio, molar ratio of DES, speed of agitator and particle size – but only four main factors (temperature, time, liquid–solid ratio, and molar ratio) having significant influence on the TPC yield were considered.…”

Section: Methodsmentioning

confidence: 99%

Deep eutectic solvent‐based extraction of polyphenolic antioxidants from onion (Allium cepa L.) peel

2018

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BACKGROUND Biomass waste, including fruit and vegetable residues, poses a serious challenge to the environment. This demands novel approaches for handling and disposing of it in a safe manner. However, such waste is extremely rich in bioactive components, which are considered to have a beneficial impact on health. This has led to the recovery of high‐value compounds from biomass waste before finally disposing of it. The present investigation reveals the use of green solvents such as eutectic mixtures composed of choline chloride with three different hydrogen bond donors like sucrose (4:1), urea (1:2), and sorbitol (3:1) as extractants for recovering valuable phenolic antioxidants from onion peel. RESULTS A deep eutectic solvent system consisting of choline chloride:urea (ChCl:urea) showed the best result for total phenolic content from onion peel while the other two eutectic mixtures showed relatively lower extraction efficiency. Experiments were performed with different molar ratios of ChCl:U (1:1–1:3) and liquid–solid ratios (10:1–60:1) under a temperature range (50–90 °C) and a time range (60–150 min). Taguchi's method was employed to maximize the extraction of polyphenolic antioxidants from onion peel, resulting in optimal conditions: extraction temperature 60 °C, time 120 min, liquid to solid ratio 50:1 and molar ratio of ChCl:U as 1:2. Under optimum conditions, the corresponding TPC value of the extract was found to be highest at 222.97 mg gallic acid equivalent (GAE) g−1 dw. CONCLUSION Major flavonoids – quercetin, kaempferol, and myricetin – were identified and quantified in the extracts. Moreover, high reducing power (PR) value was reported in the case of ChCl:U extract, and 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) radical scavenging activity was found to be higher in ChCl:So extract. © 2018 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Deep eutectic solvent‐based extraction of polyphenolic antioxidants from onion (Allium cepa L.) peel

2018

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“…However, an increase in temperature increased vapor pressure of the compounds and makes them easier to extract. These two competing effects are dependent on extraction conditions . Above the crossover pressure, the effect of temperature on solute vapor pressure predominates that of density.…”

Section: Resultsmentioning

confidence: 99%

Mathematical modeling of mass transfer in supercritical fluid extraction of patchouli oil

Soh

Agarwal

Jain

et al. 2019

Engineering Reports

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Patchouli oil is a high‐value essential oil used in cosmetic, food, and pharmaceutical industries. In this work, supercritical fluid extraction of patchouli oil with various operating process parameters (pressure, temperature, flow rate, and particle size) were studied and the results were modeled using the broken and intact cell model (BICM). From the experimental studies, it was found that the extraction rate was improved at higher pressures and flow rates, where the mass transfer resistances in the liquid and solid phase were decreased; however, the increase in temperature had an inverse effect on extraction rate and mass transfer. In the case of particle size, a moderate size of 0.3 to 0.6 mm gave the optimal extraction rate. The BICM predictions showed good agreements with experimental data and gave valuable insights regarding the mass transfer mechanism of the extraction process, including mass transfer coefficients and extraction periods governed by convection and diffusion.

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“…The unique physical properties of supercritical fluids have values for density, diffusivity, and viscosity between liquids and gases. Moreover, near-zero surface tension as well as low viscosities similar to gases allow supercritical fluids to easily penetrate into a microporous matrix material to extract desired compounds [44].…”

Section: Sfementioning

confidence: 99%

Antioxidant Activity of Sulfated Seaweeds Polysaccharides by Novel Assisted Extraction

Wu¹

2017

Solubility of Polysaccharides

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Seaweeds have an extremely numerous of species in the world and been able to be divided into several developmental systems. Broadly, three types of seaweeds can be defined according to their color: brown seaweeds, green seaweeds, and red seaweeds. Thousands of years ago, mankind used seaweeds as food and medicine. Seaweed extracts are gaining increasing attention due to their unique composition and the potential for widespread use in industry. A variety of novel (green) extraction techniques have been devised for converting seaweed biomass into seaweed extracts, such as enzyme-assisted extraction (EAE), microwave-assisted extraction (MAE), pressurized liquid extraction (PLE), supercritical fluid extraction (SFE), and ultrasound-assisted extraction (UAE), which are capable of extracting seaweeds' biologically active compounds without causing degradation. Seaweed extracts contain compounds, such as carbohydrates, proteins, minerals, oils, fats, and polyunsaturated fatty acids and abundant bioactive compounds, such as antioxidants, pigments, and sulfated seaweed polysaccharides (SWP), as well as antibacterial, antifungal, anti-inflammatory, antioxidation, antitumor, antiviral, and hypolipidemic effect. The purpose of this article is to describe the antioxidant activity of SWP of brown seaweeds, green seaweeds, and red seaweeds by novel assisted extraction.

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Optimization and scale-up process for supercritical fluids extraction of ginger oil from Zingiber officinale var. Amarum

Cited by 66 publications

References 35 publications

Deep eutectic solvent‐based extraction of polyphenolic antioxidants from onion (Allium cepa L.) peel

Deep eutectic solvent‐based extraction of polyphenolic antioxidants from onion (Allium cepa L.) peel

Mathematical modeling of mass transfer in supercritical fluid extraction of patchouli oil

Antioxidant Activity of Sulfated Seaweeds Polysaccharides by Novel Assisted Extraction

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