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KMID : 1011620190350020140
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Korean Journal of Food and Cookey Science
2019 Volume.35 No. 2 p.140 ~ p.150
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Antioxidant Activities and Changes in Ginsenosides Composition of Yakjus with Fine Ginseng Root, Ginseng Flower and Ginseng Berry
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Oh Chang-Kyo
Kim Gye-Won
Son Jong-Youn
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Abstract
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Purpose: This study examined the antioxidant effects and ginsenosides contents of Yakju with fine ginseng root, ginseng flower, and ginseng berry.
Methods: The antioxidant activities were estimated on the basis of total phenol content, total flavonoids content, electric donating ability, ferrous ion chelating effect and nitrite scavenging ability.
Results: The total polyphenol contents of fine ginseng root, ginseng flower, and ginseng berry were 108.4∼117.9 mg/100 mL The total flavonoid contents were in order of ginseng flower (3.02 mg/100 mL)>ginseng berry (1.51 mg/mL)>fine ginseng root (0.89 mg/100 mL)≥ginseng root (0.82 mg/100 mL). The electron donating ability was in the order of ginseng flower (90.2%)>fine ginseng root (77.4%)>ginseng root (75.5%)>ginseng berry (72.2%). The ferrous ion chelating effect was the highest in fine ginseng root (50.4%) and lowest in ginseng berry (38.3%). The order of the nitrite scavenging abilities (at pH 1.2) was ginseng flower (82.3%)>ginseng root (75.2%)>fine ginseng root (73.4%)>ginseng berry (67.6%). The ginsenosides content was in the order of fine ginseng root (277.1 μg/mL)>ginseng flower (93.66 μg/mL)>ginseng berry (58.52 μg/mL)>ginseng root (38.75 μg/mL). The minor ginsenosides such as Re, Rg3 (ginsenoside Rg3) and CK (compound K), which were not detected on the second day of fermentation, were detected on the 8th day. Rg3 was detected in the order of fine ginseng root (10.37 μg/g)>ginseng flower (3.08 μg/g)>ginseng berry (2.20 μg/g)>ginseng root (1.35 μg/g) and CK was detected in the order of fine ginseng root (28.47 μg/g)>ginseng flower (13.52 μg/g)>ginseng root (10.33 μg/g)>ginseng berry (8.74 μg/g). The highest contents of Rg3 and CK were detected in Yakjus with fine ginseng root.
Conclusion: These results indicated that Yakjus with ginseng flower or fine ginseng root may have valuable functional properties owing to their antioxidant activities.
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KEYWORD
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Yakju, fine ginseng root, ginseng flower, ginseng berry, ginsenoside
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