Comparison of antioxidant activity of ginseng root extracts obtained by pulsed electric field and hydrolytic enzyme processing

4th International Conference on Agricultural and Biological Sciences

农业科学;生物科学

Lu, C.W.^1 ; Yin, Y.G.^2

College of Life Science, Changchun Normal University, Changchun

130032, China^1

College of Biological and Agricultural Engineering, Jilin University, Changchun

130032, China^2

关键词: Anti-oxidant activities;    Hydrolytic enzyme;    Pulsed electric field;    Root extracts;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/185/1/012005/pdf
DOI  :  10.1088/1755-1315/185/1/012005

来源: IOP

【 摘 要 】

The antioxidant activity and biological compounds of ginseng root extracts were compared during pulsed electric field (PEF) and hydrolytic enzyme (HE) processing. The total ginsenoside content of ginseng root extracts by PEF (29.51 ± 1.67 mg/g) was higher than cellulase enzyme (HEC 23.74 ± 1.85 mg/g) and β-glucosidase enzyme (HEG 25.31 ± 2.34 mg/g) treatment. The ginseng root extracts obtained by PEF contained more total polyphenols (15.62 ± 1.07 mg/g) and flavonoids (16.58 ± 1.5 mg/g) than HEC (polyphenols 10.76 ± 1.22 mg/g; flavonoids 13.2 ± 1.63 mg/g) and HEG (polyphenols 14.09 ± 0.39 mg/g; flavonoids 15.37 ± 1.05 mg/g) treatment. Moreover, PEF processing showed more powerful scavenging activities against DPPH, ABTS radicals and FRAP activity of ginseng root extracts. Scanning electron microscopic examination of the ginseng root tissue with PEF processing provided direct evidence for the disruption of structure integrity. These results indicated that bioactive ingredients extraction with higher antioxidant activity could be obtained via PEF processing.