TY - JOUR AU - Tancharoenrat Vuthijumnonk, Janyawat AU - Rajchasom, Sureewan AU - Kantala, Chatchawan AU - Mueangjai, Maneerat PY - 2022/11/17 Y2 - 2024/03/28 TI - Pulsed electric field (PEF)-assisted Extraction of Phenolic Compounds from Mangosteen Pericarp JF - Suan Sunandha Science and Technology Journal JA - Suan Sunandha Sci & Tech VL - 9 IS - 1 SE - Research Articles DO - UR - https://li02.tci-thaijo.org/index.php/ssstj/article/view/222 SP - 12-16 AB - <p>Mangosteen (Garcinia mangostana Linn.) pericarp is a rich source of phytochemicals. Therefore, It is used as a traditional medicine. This study aims to investigate effects of pulsed electric field (PEF)-assisted extraction of mangosteen pericarp on total phenolic content (TPC) and antioxidant activity using ferric reducing ability power (FRAP) assay. The study conditions were varied by PEF intensity (4, 5 and 6 kV/cm-1) with 1000, 3000 and 5000 pulses. Mangosteen pericarp macerated in water was used as a control. The study revealed that TPC value increased with higher intensity and pulses. The highest TPC was observed, in the pericarp extracted with 6 kV/cm-1 and 5000 pulses, at 0.17 mgGAE/gFW. The PEF-assisted extraction showed 425% increment compared to its untreated counterpart. Similar trend was found with FRAP assay where the pericarp extracted with PEF (6 kV/cm-1, 5000 pulses) showed the highest FRAP value at 0.38 mgGAE/gFW. Moreover, TPC value and FRAP value exhibited positive correlation with r = 0.9869.</p> ER -