Kim Inhwan, Ku Kyung-Hyung, Jeong Moon-Cheol, Kwon Soon-Il, Lee Jihyun
Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea.
Korea Food Research Institute, Wanju 55365, Korea.
Antioxidants (Basel). 2020 May 20;9(5):443. doi: 10.3390/antiox9050443.
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.
为应对全球变暖，近期培育出了早中期苹果品种；然而，它们的代谢物组成仍不明确。在此，对10个新苹果品种和14个传统苹果品种的游离糖、有机酸等代谢物以及抗氧化活性进行了测定。此外，通过高分辨率质谱对苹果果肉和果皮的酚类物质进行了表征。苹果中的主要酚类化合物因品种和组织（即果皮或果肉）而异。在新苹果品种中，Decobell和Tinkerbell分别在果皮和果肉中表现出较高的抗氧化活性，且酚类化合物含量高于其他品种。Honggeum与流行的传统品种相比，酚类含量高，糖酸比相似。除了抗氧化酚类含量外，代谢物谱信息可用于根据不同目的选择苹果品种。例如，Indo因其较高的糖酸比，可用于制作具有甜苹果口味的苹果。这些信息可用于根据不同目的选择苹果品种。例如，根据Decobell果皮的代谢物谱，其可作为食品补充剂和食品添加剂的来源，而Tinkerbell果肉可用于制作苹果汁。
