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KMID : 0380620200520020119
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Korean Journal of Food Science and Technology
2020 Volume.52 No. 2 p.119 ~ p.124
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Antioxidant Activity and Component Analysis of Populus Tomentiglandulosa Extract
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Choi Sun-Il
Hwang Seok-Jun
Lee Ok-Hwan
Kim Jong-Dai
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Abstract
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Populus Tomentiglandulosa (PT) is known for pharmacological effects against ischemia-injury and immune activity. This study aimed to investigate the nutritional components, total phenol and flavonoid contents, antioxidant activities of PT extract. Among the mineral contents, the K content (907.5 mg/100 g) was the highest in the PT extract.
Vitamins C (6.1 mg/100 g) and nicotinic acid (3.1 mg/100 g) were also found in high amounts. Fructose (2.2%) and glucose (1.6%) were found as free sugars in the PT extract. The total phenolic and flavonoid contents of PT extract were 115.4±0.85 mg GAE/g and 20.9±1.14 mg QE/g, respectively. Results of HPLC analysis of PT extract identified catechin (9.1±0.27 mg/g), caffeic acid (4.1±0.57 mg/g), p-coumaric acid (2.1±0.49 mg/g), chlorogenic acid (1.6±1.86 mg/g), and gallic acid (1.4±0.35 mg/g), respectively. These results suggest that the PT extract possesses high nutritional component and antioxidant properties, which can be used as functional bioresources.
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KEYWORD
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Populus Tomentiglandulosa, nutritional component, antioxidant activity, phenolic compounds
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