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Article

Metabolite Profiling and Antioxidant Activity of 10 New Early- to Mid-Season Apple Cultivars and 14 Traditional Cultivars

1
Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea
2
Korea Food Research Institute, Wanju 55365, Korea
3
Apple Research Institute, National Institute of Horticultural & Herbal Science, Rural Development, Gunwi 39000, Korea
*
Author to whom correspondence should be addressed.
Antioxidants 2020, 9(5), 443; https://doi.org/10.3390/antiox9050443
Received: 22 April 2020 / Revised: 17 May 2020 / Accepted: 18 May 2020 / Published: 20 May 2020
(This article belongs to the Special Issue Recent Developments in Bioactive Molecules Evaluation)
Early- to mid-season apple cultivars have recently been developed in response to global warming; however, their metabolite compositions remain unclear. Herein, metabolites, such as free sugars, and organic acids and antioxidant activity were determined in 10 new and 14 traditional apple cultivars. Additionally, the phenolic profiles of the apple pulp and peel were characterized by high-resolution mass spectrometry. Major phenolic compounds in apples varied depending on the cultivar and tissue (i.e., peel or pulp). Among the new apple cultivars, Decobell and Tinkerbell, showed high antioxidant activity and contained higher phenolic compound content than other cultivars in the peel and pulp, respectively. Honggeum showed high phenolic content with similar sugar to acid ratio compared to popular traditional cultivars. In addition to antioxidant phenolic contents, metabolite profile information can be used to select apple cultivars for various purposes. For example, Indo can be selected for sweet apple taste because of its higher sugar to acid ratio. This information can be used to select apple cultivars for various purposes. For example, Decobell peel could be used as sources of food supplements and food additives, and Tinkerbell pulp can be utilized for apple juice making according to its metabolite profile. View Full-Text
Keywords: apple peel and pulp; phenolic; UHPLC-(ESI)-qTOF; industrial application of apple; epicatechin; chlorogenic acid apple peel and pulp; phenolic; UHPLC-(ESI)-qTOF; industrial application of apple; epicatechin; chlorogenic acid
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MDPI and ACS Style

Kim, I.; Ku, K.-H.; Jeong, M.-C.; Kwon, S.-I.; Lee, J. Metabolite Profiling and Antioxidant Activity of 10 New Early- to Mid-Season Apple Cultivars and 14 Traditional Cultivars. Antioxidants 2020, 9, 443. https://doi.org/10.3390/antiox9050443

AMA Style

Kim I, Ku K-H, Jeong M-C, Kwon S-I, Lee J. Metabolite Profiling and Antioxidant Activity of 10 New Early- to Mid-Season Apple Cultivars and 14 Traditional Cultivars. Antioxidants. 2020; 9(5):443. https://doi.org/10.3390/antiox9050443

Chicago/Turabian Style

Kim, Inhwan, Kyung-Hyung Ku, Moon-Cheol Jeong, Soon-Il Kwon, and Jihyun Lee. 2020. "Metabolite Profiling and Antioxidant Activity of 10 New Early- to Mid-Season Apple Cultivars and 14 Traditional Cultivars" Antioxidants 9, no. 5: 443. https://doi.org/10.3390/antiox9050443

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