Enhancing pressurized water extraction of β-glucan from barley grain by adding CO2 under hydrothermal conditions

Kodama, Shoko; Shoda, Tetsuya; Machmudah, Siti; Diono, Wahyu; Kanda, Hideki; Goto, Motonobu

doi:10.1016/j.cep.2015.08.012

Cited by 34 publications

(16 citation statements)

References 37 publications

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“…However, other reports aiming to produce extracts rich in soluble sugars from fungi Grifola frondosa obtained high yields of total sugars using a HAE at 121 °C [27]. Moreover, previous reports aiming to achieve high yields of glucans from fungi and cereals reported variable yields and HAE conditions [28,29,30,31].…”

Section: Resultsmentioning

confidence: 99%

Enhancing the Extraction of Polysaccharides and Antioxidants from Macroalgae Using Sequential Hydrothermal-Assisted Extraction Followed by Ultrasound and Thermal Technologies

et al. 2019

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Fucose sulphated polysaccharides (FSPs) and glucans have recently attracted the attention of the scientific community due to their wide range of biological activities. Both polysaccharides should ideally be selectively extracted using innovative technologies with high extraction efficiency. This study aims to: (1) Optimise the extraction variables used in hydrothermal-assisted extraction (HAE) to obtain high yields of FSPs, total glucans, and antioxidants from Laminaria hyperborea; (2) to apply these optimised protocols to other brown macroalgae; and (3) to explore the application of ultrasound and thermal technologies to increase the recovery of polysaccharides from the residual biomass. Box-Behnken design (three-factor, four-levels) was employed to optimise the HAE variables, and principal component analysis was used to evaluate the recovery of polysaccharides from the residual biomass. The optimal HAE conditions were 120 °C, 80.9 min, and 12.02 mL/g macroalgae from L. hyperborea. The best sequential application of ultrasound and thermal treatment achieved an additional 2971.7 ± 61.9 mg fucose/100 g dried macroalgal residue (dmr) from Ascophyllum nodosum and 908.0 ± 51.4 mg total glucans/100 g dmr from L. hyperborea macroalgal residues.

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Section: Resultsmentioning

confidence: 99%

Enhancing the Extraction of Polysaccharides and Antioxidants from Macroalgae Using Sequential Hydrothermal-Assisted Extraction Followed by Ultrasound and Thermal Technologies

et al. 2019

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“…The intensities of several functional groups in the grains of paradise seeds decreased after treatment by SCCO2. Table 1 showed the typical functional groups and the infrared signal with the possible compounds [20,21]. The intensity of the broad band located at 3305 cm -1 which was attributed to O-H stretching of hydrogen-bonded hydroxyl groups and the band at 2925 cm -1 was representative of C-H stretching became decline and narrow after applied SCCO2 extraction.…”

Section: Resultsmentioning

confidence: 99%

“…The increasing pressure and temperature (Fig. 7(c)) seem to an increase of CO2 diffusivity into the grains of paradise seeds and allow a more powerful swelling action to remove the substances in grains of paradise seeds [21]. Sovova 1994 [32] reported that SCCO2 has ability to rupture cells or the outer surface of matrix to access the solute substances.…”

Section: Resultsmentioning

confidence: 99%

Extraction of Phytochemicals from Grains of Paradise Using Supercritical Carbon Dioxide

Ono¹,

Kawamoto²,

Uemori³

et al. 2017

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Abstract. Supercritical carbon dioxide (SCCO2) is one of the green methods to extract plant matters substances. In this study, SCCO2 has been applied as a media to extract the grains of paradise seeds substances at temperatures of 40 -80 o C and pressures of 20 -40 MPa using a semi-continuous flow-type system. Results of FT-IR spectra analysis showed that the grains of paradise seeds substances were extracted by SCCO2. The SEM images of the grains of paradise seeds residues also showed that the physical changes of the grains of paradise seeds surface occurred after SCCO2 extraction. The main compounds in extracts were gingerols, shogaols, and paradols. However, the GC-MS may only identify paradol compounds due to gingerols, shogaols, and paradols are homologous series of phenolic ketones and paradols was more stable than gingerols and shogaols. The yields of gingerols, shogaols, and paradols were 9.12, 3.90, and 4.42 mg/g sample, respectively and affected by extraction temperatures and/or extraction pressures.

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“…At this condition (40 MPa), the increasing operating pressure may enhance CO2 diffusivity to penetrate into the Vitellaria paradoxa Gaertn seeds. As a result, supercritical CO2 will result in a more powerful swelling action to disrupt and transfer the Vitellaria paradoxa Gaertn seeds components [23]. Sovova [24] observed the vegetable oil extraction rate by supercritical CO2.…”

Section: Resultsmentioning

confidence: 99%

Lipids from Vitellaria paradoxa Gaertn Seeds by Supercritical CO2: Extraction and Optimization of Parameters by Response Surface Methodology

Yamamoto¹,

Murakami²,

Chhouk³

et al. 2018

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Supercritical carbon dioxide (CO2) was employed to extract lipids from Vitellaria paradoxa Gaertn seeds in semi-batch process at various operating conditions to optimize extraction process. The extraction processes were carried out at 40-60 o C and 20-40 MPa with 2-4 ml min-1 CO2 flow rates. Analysis of variance (ANOVA) with 33 factorial design combined with statistical was used to optimize variables in the process of Vitellaria paradoxa Gaertn seeds lipids extraction with supercritical CO2. The FT-IR spectra indicated that the Vitellaria paradoxa Gaertn seeds components were extracted by supercritical CO2. The SEM images also indicated that the physical changes in the surface of the Vitellaria paradoxa Gaertn seeds occurred after supercritical CO2 extraction treatment. The maximum of extracted lipids was 0.47 g/g-sample when the extraction was conducted at a temperature of 80 o C and pressure of 40 MPa with CO2 flow rate of 3 ml min-1. The GC-MS analysis showed that the extracted lipids mainly composed of palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1), and linoleic acid (C18:2). The analysis of experimental design demonstrated that pressure and temperature were the influential variables on the lipids extraction.

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Enhancing pressurized water extraction of β-glucan from barley grain by adding CO2 under hydrothermal conditions

Cited by 34 publications

References 37 publications

Enhancing the Extraction of Polysaccharides and Antioxidants from Macroalgae Using Sequential Hydrothermal-Assisted Extraction Followed by Ultrasound and Thermal Technologies

Enhancing the Extraction of Polysaccharides and Antioxidants from Macroalgae Using Sequential Hydrothermal-Assisted Extraction Followed by Ultrasound and Thermal Technologies

Extraction of Phytochemicals from Grains of Paradise Using Supercritical Carbon Dioxide

Lipids from Vitellaria paradoxa Gaertn Seeds by Supercritical CO2: Extraction and Optimization of Parameters by Response Surface Methodology

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