1.
Faridah A, Holinesti R, Syukri D. Betalains from Red Pitaya Peel (Hylocereus polyrhizus): Extraction, Spectrophotometric and HPLC-DAD Identification, Bioactivity and Toxicity Screening. Pak. J. Nutr. 2015;14(12):976–982. doi:10.3923/pjn.2015.976.982