• Arjumand Ara
• Mohd Mateen Qureshi
• Nashra Maheen
• Asima Siddiqua
• Uzma Zareen

Dragon fruit belongs to the genus Hylocereus of the Cactaceae family. There are two species that are commonly cultivated; Hylocereus polytheizes and Hylocereus undatus that have the same red skin but different flesh colours, red and white respectively. Although from the same genus, the phytochemical contents and bioactivities of both fruits may not be the same. This study aims to compare the phytochemical contents, and antibacterial activities of H. undatus to help consumers better choose nutritional fruits and to explore potential natural preservatives. The fruit samples were extracted using methanol and later were subjected to phytochemical, antibacterial assays. The phytochemical contents were determined using Folin Ciolcalteu and aluminium chloride methods for total phenolic content . Disk diffusion method was performed to evaluate antibacterial activities against Escherichia coli. the most commonly cultivated vine cactus in the cactaceae family is normally Hylocereus undatus, which would be native to Mexico and America. it is commonly referred to as “dragon fruit” or “pitaya.” additionally, it goes by the name “buahnaga,” which means “dragon fruit.” in addition to their attractive colour, Hylocereus undatus fruits are popular around the world due to their abundance of polyphenolic components and their antioxidant activity. due to the characteristics, degree of production, and financial benefits of the pitahaya fruit, a member of the Hylocereus genus, more land has been planted in agriculture during the past two decades. stalks, fruits, and flowers from the plant are used in food and film.

Hylocereus undatus, Disc diffusion method, Antibacterial activity, Phytochemical content, Total phenolic content.

"Phytochemical screening and invitro antibacterial activity of Hylocereus undatus fruit peel extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 7, page no.g432-g439, July-2025, Available :http://www.jetir.org/papers/JETIR2507662.pdf

"Phytochemical screening and invitro antibacterial activity of Hylocereus undatus fruit peel extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 7, page no. ppg432-g439, July-2025, Available at : http://www.jetir.org/papers/JETIR2507662.pdf