Enhanced antioxidant and antityrosinase activities of longan fruit pericarp by ultra-high-pressure-assisted extraction

Prasad, K. Nagendra; Yang, Bao; Shi, John; Yu, Chunyan; Zhao, Ming; Xue, Sophia Jun; Jiang, Yueming

doi:10.1016/j.jpba.2009.02.033

Cited by 133 publications

(90 citation statements)

References 27 publications

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“…The inhibition of tyrosinase activity can be dependent on the hydroxyl group of phenolic compounds in M. autumnalis. These findings are accordance with Prasad et al, (39), Fatiha et al,(40) and Zengin et al, (32). In the literature, no publications were found about the antioxidant and enzyme inhibitory activity of M. autumnalis …”

Section: Enzyme Inhibitory Activitysupporting

confidence: 90%

Antioxidant properties and enzyme inhibitory effects of extracts from Mandragora autumnalis and its fatty acid composition

Uysal¹,

Zengin²,

Aktümsek³

2016

Marmara Pharm J

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The present research was performed to evaluate antioxidant activities and enzyme inhibitory potentials of two extracts (acetone and methanol) from two parts (flowers and leaves) of Mandragora autumnalis. The antioxidant properties were evaluated by using different methods. Enzyme inhibitory potentials were tested against cholinesterase (AChE and BChE), tyrosinase, α-amylase and α-glucosidase. Fatty acids, total phenolics and flavonoid content were investigated for phytochemical composition. Generally, the methanolic extract of flowers (F-Met) exhibited the strongest antioxidant effect with the highest level of phenolics. Total phenolic and flavonoid content were determined as 26.10-46.92 mgGAE/g extract and 3.60-26.11 mgRE/g extract, respectively. α-linolenic acid was found to be major fatty acids in the studied oils (33.81 % for flowers and 39.15 % for leaves). The study suggested that M. autumnalis could be valuable as a source of natural agents in food and pharmaceutical applications.

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Section: Enzyme Inhibitory Activitysupporting

confidence: 90%

Antioxidant properties and enzyme inhibitory effects of extracts from Mandragora autumnalis and its fatty acid composition

Uysal¹,

Zengin²,

Aktümsek³

2016

Marmara Pharm J

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“…Increase in pressure could increase the fluid density, decreasing the distance between the molecules by the rupturing effect of pressure and thereby strengthening interactions between the fluid and matrix (Lang and Wai 2001). During rupturing process, the chemical substances within the plant materials are rapidly released into the surrounding extraction solvents, which enhanced the solubility of the solute, mass transfer rate and diffusion of solvent into the plant material and improve the extraction yield (Prasad et al 2010;Sonsuzer et al 2004). The decrease in extraction yield with increasing pressure after a certain pressure (162 bar) might be due to the volatility and polarity of extracted analytes and interaction between the other parameters.…”

Section: Effect Of Pressurementioning

confidence: 99%

Modeling and optimization of supercritical fluid extraction of anthocyanin and phenolic compounds from Syzygium cumini fruit pulp

Maran¹,

2014

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Supercritical carbon dioxide extraction (SC-CO 2 ) of total anthocyanin and phenolic compounds from jamun fruits was investigated using three factors at three levels Box-Behnken response surface design. Experiments were conducted to evaluate the effects of three independent variables (pressure, temperature and co-solvent flow rate) on the maximum extraction yield of anthocyanin and phenolic compounds from jamun fruits. From the experimental data, second order polynomial mathematical models were developed with high coefficient of determination values (R 2 >0.98). From response surface plots, pressure, temperature and co-solvent flow rate exhibited independent and interactive effects on the extraction yields. Pressure of 162 bar, extraction temperature at 50°C and co-solvent flow rate of 2.0 g/min was identified as optimal conditions. Under these optimal conditions, the experimental value agreed well with the predicted values and indicates the suitability of developed models.

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“…These results indicate that the sample of ultra-high-pressure assisted extraction possessed higher phenolic contents and exhibited stronger antioxidant activities than other samples (Prasada et al, 2010). As a new plant extraction technology in recent years, UHP provides a new approach for traditional Chinese medicine extraction (Liao et al, 2010).…”

Section: Discussionmentioning

confidence: 94%

“…UHP has been use for the extraction of flavonoids, anthocyanins, ginse- noside, flavones and salidroside (Prasada et al, 2009(Prasada et al, , 2010Corrales et al, 2008;Xi et al, 2009;Angela et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Optimization for ultra high pressure extraction of Scutellaria barbata by central composite design-response surface methodology

Zhang¹,

Zy²,

Cheng³

et al. 2011

Afr. J. Biotechnol.

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Enhanced antioxidant and antityrosinase activities of longan fruit pericarp by ultra-high-pressure-assisted extraction

Cited by 133 publications

References 27 publications

Antioxidant properties and enzyme inhibitory effects of extracts from Mandragora autumnalis and its fatty acid composition

Antioxidant properties and enzyme inhibitory effects of extracts from Mandragora autumnalis and its fatty acid composition

Modeling and optimization of supercritical fluid extraction of anthocyanin and phenolic compounds from Syzygium cumini fruit pulp

Optimization for ultra high pressure extraction of Scutellaria barbata by central composite design-response surface methodology

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