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EXTRACTION OF ANTIOXIDANT COMPOUNDS FROM RED PITAYA USING SOXHLET EXTRACTION METHOD - page 11 / 24

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LIST OF FIGURES

FIGURE

TITLE

    • 2.1

      Flesh of Costa Rica Pitayas

    • 2.2

      Red Pitaya (Hylocereus undatus)

    • 2.3

      Soxhlet Extractor

    • 3.1

      Drying Oven

    • 3.2

      Soxhlet Extractor

    • 3.3

      High Performance Liquid Chromatography

    • 3.4

      Ultraviolet-Visible Spectrophotometer

    • 3.5

      Flow chart of experimental study with different drying temperatures

    • 3.6

      Flow chart of experimental study with different solvents used

    • 3.7

      Flow chart of experimental study with different solvent to solid ratio

    • 3.8

      Filtering solution using membrane filter

    • 4.1

      Calibration curve

    • 4.2

      Graph concentration versus drying temperature

    • 4.3

      Graph concentration versus solvent used

    • 4.4

      Graph concentration versus solvent to solid ratio

PAGE

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