%0 Journal Article
%A CHENG Da-Hai*
%A GAO Chang
%A GAO Xin
%A ZHAO Er-Feng
%T Total Phenolic Content and Antioxidant Activities of Blueberry Pomace Extracts
%D 2010
%R 10.7525/j.issn.1673-5102.2010.02.022
%J Bulletin of Botanical Research
%P 253-256
%V 30
%N 2
%X Total phenolics and antioxidant activities of blueberry pomace extracts were studied in the present study. Water, 40% ethanol and cellulase-ultrasonic-assisted extraction were used to extract blueberry pomace in this study. Folin-Ciocalteu method was employed for total phenol contents determination. Moreover, the antioxidant activities of aqueous extracts, ethanol extracts and cellulase-ultrasonic-assisted extracts were determined by DPPH free radical scavenging assay and O<sup>-&middot;</sup><sub>2</sub> free radical scavenging assay. Results showed that total phenolic content of cellulase-ultrasonic-assisted extracts (425.36&plusmn;15.2 mg GAE&middot;100 g<sup>-1</sup> DW) was much higher than that of aqueous extracts (169.46&plusmn;9.7 mg GAE&middot;100 g<sup>-1</sup> DW) and ethanol extracts (218.39&plusmn;12.5 mg GAE&middot;100 g<sup>-1</sup> DW). The antioxidant activity of cellulase-ultrasonic-assisted extracts in the DPPH radical scavenging and superoxide radical scavenging assay were 2.67&plusmn;0.13 g Vc&middot;100 g<sup>-1</sup> DW and 2.48&plusmn;0.14 g Vc&middot;100 g<sup>-1</sup> DW, respectively. These values were much lower than those of the aqueous extracts and ethanol extracts.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2010.02.022