Antioxidant-rich phytochemicals in miracle berry (Synsepalum dulcificum) and antioxidant activity of its extracts

Document Type

Article

Publication Date

6-15-2014

Abstract

Miracle berry is known for its unique characteristic of modifying sour flavours to sweet. Twelve phenolics were identified and quantified in the miracle berry flesh at a level from 0.3 for kaempferol to 17.8 mg/100 g FW for epicatechin. Lutein and α-tocopherol were also quantified at a level of 0.4 and 5.8 mg/100 g FW, respectively. The TP and TF contents were 1448.3 GA and 9.9 QR mg Equiv/100 g FW for the flesh, respectively, compared with 306.7 GA and 3.8 mg QR mg Equiv/100 g FW of the seeds. The free radical scavenging and reducing percentage of the flesh extract was 96.3% and 32.5% in DPPH and ABTS assays, respectively. Additionally, the flesh extract had a high FRAP of 22.9 mmol/100 g. It significantly inhibited the oxidation of PUFA in fish oil as well. Thus, miracle berry could also serve as an antioxidant-rich fruit to provide health promoting function. © 2014 Published by Elsevier Ltd.

Publication Source (Journal or Book title)

Food Chemistry

First Page

279

Last Page

284

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