4.6 Article

Effect of Extraction Methods on the Antioxidant Potential and Cytotoxicity of the Combined Ethanolic Extracts of Daucus carota L., Beta vulgaris L., Phyllanthus emblica L. and Lycopersicon esculentum against Gastric Adenocarcinoma Cells

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MOLECULES
卷 28, 期 18, 页码 -

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MDPI
DOI: 10.3390/molecules28186589

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hot-air oven drying method; ethanolic fruit extracts; bioactive compounds; flavonoids; carotenoids; phenolics; lyophilization method; phytoconstituents; antioxidant; anticancer

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Frequent consumption of fruits and vegetables can alleviate the risk of chronic diseases. This study examined the effects of different preparation methods on the composition, antioxidant activity, and cytotoxicity of fruit extracts. The results demonstrated that freezing-based techniques were more effective in preserving phytoconstituents and their antioxidant and cytotoxic potential compared to heat-based techniques.
Frequent consumption of fruits and vegetables in the daily diet may alleviate the risk of developing chronic diseases. Daucus carota L. (carrot), Beta vulgaris L. (beetroot) Phyllanthus emblica L. (amla), and Lycopersicon esculentum M (tomatoes) are traditionally consumed functional foods that contain a high concentration of antioxidants, ascorbic acid, polyphenols, and numerous phytochemicals. This study assessed how three distinct preparation methods affect the phenolic, flavonoid, carotenoid, and ascorbic acid contents, antioxidant level, and cytotoxicity of the combined fruit extract. The fruit samples were taken in the ratio of carrot (6): beetroot (2): tomato (1.5): amla (0.5) and processed into a lyophilized slurry (LS) extract, lyophilized juice (LJ) extract, and hot-air oven-dried (HAO) extract samples. The sample extracts were assessed for their phytoconstituent concentrations and antioxidant and cytotoxic potential. The total phenolic content in LS, LJ, and HAO extracts was 171.20 +/- 0.02, 120.73 +/- 0.02, and 72.05 +/- 0.01 mg gallic acid equivalent/100 g, respectively and the total flavonoid content was 23.635 +/- 0.003, 20.754 +/- 0.005, and 18.635 +/- 0.005 mg quercetin equivalent/100 g, respectively. Similarly, total ascorbic acid content, carotenoids, and antioxidant potential were higher in the LS and LJ extracts than in HAO. Overall, the LS extract had a substantially higher concentration of phytochemicals and antioxidants, as well as higher cytotoxic potential, compared to the LJ and HAO extracts. The LS extract was tested in the MKN-45 human gastric cancer cell line to demonstrate its effective antioxidant potential and cytotoxicity. Hence, lyophilization (freezing) based techniques are more effective than heat-based techniques in preserving the phytoconstituents and their antioxidant and cytotoxic potential.

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