Optimization of subcritical fluid extraction of carotenoids and chlorophyll a from <i>Laminaria japonica</i> Aresch by response surface methodology

Lü, Jie; Feng, Xiaomei; Han, Yuqian; Xue, Changhu

doi:10.1002/jsfa.6224

Cited by 62 publications

(32 citation statements)

References 32 publications

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“…So far, the studies on chlorophyll extraction from Spirulina have focused mainly on extracting the chlorophylls through the supercritical extraction process with different combinations of various parameters such as solvent ratio, temperature, pressure, etc. There were also several reports on obtaining fair amounts of chlorophylls from plant resources by optimizing those variables [14,15]. However, most of the optimal conditions were at relatively high temperatures of 60-80 • C, which would cause a severe reduction in efficacy due to low contents of intact chlorophylls in the extracts.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Chlorophyll a Production from Marine Spirulina maxima by an Optimized Ultrasonic Extraction Process

Choi

Lee

2017

Applied Sciences

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Abstract:Under the optimal ultrasonification extraction conditions of 20.52 kHz for the frequency, 32.59 • C for the temperature, and 4.91 h for the process time, 17.98 mg/g of chlorophyll a was obtained. It was much higher than 13.81 mg/g from conventional 70% ethanol extraction and even higher than other data from Spirulina. This yield was close to the predicted value of 18.21 mg/g from the second-order polynomial model with a regression coefficient of 0.969. This model showed the greatest significance with the ultrasonic frequency and process time and the least significance with the temperature. The extracts also showed high α,α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activities as 69.38%, compared to 58.25% for the extracts from the 70% ethanol extraction. It was first shown that the optimal extraction was effective at enhancing the neuroprotective activities possibly due to the synergistic effects of higher amounts of chlorophyll a and other bioactive substances in the extract, revealing a 90% protection of the growth of mouse neuronal cells and a great reduction in Reactive Oxygen Species (ROS) production.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Chlorophyll a Production from Marine Spirulina maxima by an Optimized Ultrasonic Extraction Process

Choi

Lee

2017

Applied Sciences

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“…Supercritical CO 2 extraction has advantages such as non‐toxicity, zero residual organic solvent and more selective extraction. However, a high pressure and a long extraction time are required …”

Section: Introductionmentioning

confidence: 99%

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

Pang

et al. 2016

J. Sci. Food Agric.

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“…Levels of the key parameters, including initial octenylsuccinate concentration, pH, adsorption time, sepiolite dosage, and interactions between variables, were analyzed and optimized by Box-Behnken RSM with four factors and three levels, including three central points. The high, middle, and low levels of each variable were coded as +1, 0, and −1, respectively [22][23][24]. Experimental design was shown in Table 1.…”

Section: Experimental Design For Response Methodologymentioning

confidence: 99%

Study on adsorption of octenylsuccinate by sepiolite

Zhang

Pan

Tang

et al. 2016

Desalination and Water Treatment

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A B S T R A C TSepiolite was selected and studied for the adsorption of octenylsuccinate in the waste solution resulting from the production of octenylsuccinic starch. Scanning electron microscopy showed that sepiolite had a high surface area, and Fourier transform infrared spectroscopy indicated the formation of bonds between sepiolite and octenylsuccinate. The effects of reaction temperature, initial octenylsuccinate concentration, pH, adsorption time, and sepiolite dosage on adsorption efficiency (%AE) were examined by single-factor experiments. Significant parameters were further optimized by Box-Behnken response surface methodology. The theoretical optimum value of 100% was obtained when the initial octenylsuccinate concentration, pH, adsorption time, and sepiolite dosage of 20 mL solution were 0.048 mol/L, 3.12, 5.40 h, and 771.32 mg, respectively. Under these optimum conditions, the real %AE was 99.07%.

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Optimization of subcritical fluid extraction of carotenoids and chlorophyll a from Laminaria japonica Aresch by response surface methodology

Abstract: It has been proved that subcritical R134a is a potential solvent, which can be an alternative to supercritical CO2 for extraction of natural ingredients under mild conditions.

Cited by 62 publications

References 32 publications

Enhancement of Chlorophyll a Production from Marine Spirulina maxima by an Optimized Ultrasonic Extraction Process

Enhancement of Chlorophyll a Production from Marine Spirulina maxima by an Optimized Ultrasonic Extraction Process

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

Study on adsorption of octenylsuccinate by sepiolite

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