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01830 am a22001933u 4500 |
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87598 |
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|a dc
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|a Mohammad, Nor Azizah
|e author
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|a Abang Zaidel, Dayang Norulfairuz
|e author
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|a Muhamad, Ida Idayu
|e author
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|a Abdul Hamid, Mariani
|e author
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|a Yaakob, Harisun
|e author
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|a Mohd. Jusoh, Yanti Maslina
|e author
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|a Optimization of the antioxidant-rich xanthone extract from mangosteen (Garcinia mangostana L.) pericarp via microwave-assisted extraction
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|b Elsevier Ltd,
|c 2019-10.
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| 856 |
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|z Get fulltext
|u http://eprints.utm.my/id/eprint/87598/1/DayangNorulfairuzAbangZaidel2019_OptimizationoftheAntioxidant-RichXanthoneExtract.pdf
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|a Total phenolic content (TPC) and antioxidant properties of xanthone extract from mangosteen pericarp via microwave-assisted extraction (MAE) method was optimized by response surface methodology (RSM). The MAE extraction conditions to obtain optimum antioxidant-rich xanthone extract were at 2.24 min of irradiation time, 25 mL/g of solvent-to-solid ratio and 71% of ethanol concentration. The predicted results for four responses were as follows; 320.31 mg gallic acid equivalent/g extract, 83.63% and 93.77% inhibition (DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2'-Azino-bis-3-ethylbenzthiazoline-6-sulfonic acid) assays), and 144.56 mg Trolox equivalent/g extract (FRAP, Ferric reducing antioxidant power). The predicted and actual values were statistically insignificant (P > 0.05). Therefore, these results confirmed that the examined model was acceptable and relevant. MAE led to a slightly similar antioxidant capacity and a higher extraction of α-mangostin, a major xanthone of mangosteen pericarp as compared to water bath-maceration technique.
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|a en
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|a TP Chemical technology
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