Ultrasound-assisted extraction and antioxidant activity of phenolic and flavonoid compounds and ascorbic acid from rugosa rose (Rosa rugosa Thunb.) fruit

Min Um; Tae-Ho Han; Jae-Won Lee

doi:10.1007/s10068-017-0247-3

Ultrasound-assisted extraction and antioxidant activity of phenolic and flavonoid compounds and ascorbic acid from rugosa rose (Rosa rugosa Thunb.) fruit

Food Sci Biotechnol. 2017 Dec 12;27(2):375-382. doi: 10.1007/s10068-017-0247-3. eCollection 2018 Apr.

Authors

Min Um¹, Tae-Ho Han², Jae-Won Lee¹

Affiliations

¹ 1Department of Forest Products and Technology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 500-757 Republic of Korea.
² 2Department of Horticulture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 500-757 Republic of Korea.

Abstract

The present study aimed to extract total phenolic compounds (TPC), total flavonoid compounds (TFC), and ascorbic acid (AA) from the fruit of rugosa rose (Rosa rugosa Thunb.) by ultrasound-assisted extraction (UAE), and to evaluate their antioxidant activities. UAE significantly increased the extract yield compared with that obtained using the conventional method. TPC, TFC, and AA were extracted, depending on the extraction conditions (temperature, time, and ethanol concentration), in the range of 50.73-96.69, 15.93-31.88, and 3.06-6.08 mg/g, respectively. TPC and TFC were effectively extracted at a relatively high temperature (50 °C) than AA was (30 °C). The solvent condition used to extract TPC, TFC, and AA was 50% ethanol. The UAE condition for the highest antioxidant activity was obtained 30 °C, 30 min, and 50% ethanol, which were the same condition for the highest AA extraction. Among the extracts, AA showed a strong correlation with antioxidant activity at p-value of 0.001.

Keywords: Antioxidant; Ascorbic acid; Rugosa rose (Rosa rugosa Thunb.); Total flavonoid compounds; Total phenolic compounds; Ultrasound-assisted extraction.