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http://dx.doi.org/10.9799/ksfan.2022.35.5.353

Comparison of Amino Acid, Mineral Compositions and Antioxidant Activity of Apple and Crab Apple  

Lee, Kyung-Haeng (Major in Food and Nutrition, Korea National University of Transportation)
Yu, Kwang-Won (Major in Food and Nutrition, Korea National University of Transportation)
Bae, Yun-Jung (Major in Food and Nutrition, Korea National University of Transportation)
Joo, Ga-Young (Dept. of Food and Nutrition, Korea National University of Transportation)
Kim, Chae-Young (Dept. of Food and Nutrition, Korea National University of Transportation)
Publication Information
The Korean Journal of Food And Nutrition / v.35, no.5, 2022 , pp. 353-358 More about this Journal
Abstract
To confirm the applicability of crab apple, the composition and content of amino acids and minerals with 'Fuji' apple were measured. Apple and crab apple were extracted with water, 70% and 100% ethanol, respectively. The contents of polyphenols, flavonoids, and ascorbic acid, antioxidant activities of these extracts were measured. The amino acid composition of apples comprised a total of 17 amino acids. The total amino acid contents of apple and crab apple were 2,050.45 mg/kg and 900.05 mg/kg, respectively. For minerals, the total mineral content of apple and crab apple were 489.14 mg%, 529.77 mg%, respectively. The contents of polyphenols, flavonoids, and ascorbic acid of apple and crab apple extracts were highest in 70% ethanol extracts. The content of polyphenols, the crab apple extract, showed a generally higher content than the apple extract. The content of flavonoids, apple and crab apple extracts revealed no difference between extracts. The content of ascorbic acid, apple extract showed a generally higher content than the crab apple extract, but there was no significant difference between extracts. In the case of DPPH and ABTS radical scavenging abilities, 70% ethanol extract showed the highest antioxidant activity, and crab apple showed higher activity than apple extracts.
Keywords
apple; crab apple; amino acid composition; mineral composition; antioxidant activity;
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