Pilot-scale subcritical-water extraction of nodakenin and decursin from Angelica gigas Nakai

Min-Jung Ko; Mi-Ri Kwon; Myong-Soo Chung

doi:10.1007/s10068-019-00698-2

Pilot-scale subcritical-water extraction of nodakenin and decursin from Angelica gigas Nakai

Food Sci Biotechnol. 2019 Nov 28;29(5):631-639. doi: 10.1007/s10068-019-00698-2. eCollection 2020 May.

Authors

Min-Jung Ko¹, Mi-Ri Kwon², Myong-Soo Chung²

Affiliations

¹ 1Department of Food Science and Biotechnology, College of Engineering, Hankyong National University, Anseong-Si, 17579 South Korea.
² 2Department of Food Science and Engineering, Ewha Womans University, Seoul, 03760 South Korea.

Abstract

Active components were extracted from Angelica gigas Nakai by subcritical-water extraction (SWE) with the purpose of determining how the extraction conditions affect the SWE of antioxidant properties and active components (nodakenin and decursin), and to compare pilot-scale SWE (8 L) and conventional extraction methods. The extraction yields of nodakenin and decursin in the pilot-scale system were highest at 150 °C for 10 min and 190 °C for 15 min, respectively. The extraction yield of decursin increased as the stirring speed was increased to 200-250 rpm. Pearson's correlation indicated that the radical-scavenging activities using DPPH and ABTS assays were more sensitive to the Maillard reaction (R² = 0.822 and 0.933, respectively) than to the total phenolic contents (R² = 0.486 and 0.724, respectively). The extraction yield of decursin was higher when using conventional extraction methods than for SWE.

Keywords: Angelica gigas Nakai; Decursin; Nodakenin; Pilot-scale system; Subcritical water extraction.