Mun Ha In, Kwon Min Cheol, Lee Na-Rae, Son Su Young, Song Da Hye, Lee Choong Hwan
Department of Bioscience and Biotechnology, Konkuk University, Seoul, South Korea.
Research Institute for Bioactive-Metabolome Network, Konkuk University, Seoul, South Korea.
Front Nutr. 2021 Apr 8;8:659646. doi: 10.3389/fnut.2021.659646. eCollection 2021.
Tomato is one of the world's most consumed vegetables, and thus, various cultivars have been developed. Therefore, metabolic differences and nutrient contents of various tomatoes need to be discovered. To do so, we performed metabolite profiling along with evaluation of morphological and physicochemical properties of five representative tomato types. Common tomato cultivars, bigger and heavier than other tomatoes, contained higher levels of amino acids, organic acids, and lipids. On the contrary, cherry tomato cultivars contained a higher proportion of phenylpropanoids, lycopene, β-carotene, and α-carotene than the other tomatoes. Also, the highest antioxidant activity and total phenolic and flavonoid contents were observed in cherry tomato cultivars. Furthermore, to understand metabolic distributions in various tomato cultivars, we constructed a metabolic pathway map. The higher metabolic flux distribution of most primary metabolite synthetic pathways was observed in common tomatoes, while cherry tomato cultivars showed a significantly elevated flux in secondary metabolite synthetic pathways. Accordingly, these results provide valuable information of different characteristics in various tomatoes, which can be considered while purchasing and improving tomato cultivars.
番茄是世界上消费最多的蔬菜之一，因此，人们培育出了各种品种。因此，需要发现不同番茄的代谢差异和营养成分。为此，我们对五种代表性番茄品种进行了代谢物分析，并评估了它们的形态和理化性质。普通番茄品种比其他番茄更大、更重，其氨基酸、有机酸和脂质含量更高。相反，樱桃番茄品种所含的苯丙烷类化合物、番茄红素、β-胡萝卜素和α-胡萝卜素比例高于其他番茄。此外，樱桃番茄品种的抗氧化活性、总酚和黄酮含量最高。此外，为了了解不同番茄品种的代谢分布，我们构建了一个代谢途径图。在普通番茄中观察到大多数初级代谢物合成途径的代谢通量分布较高，而樱桃番茄品种在次级代谢物合成途径中的通量显著升高。因此，这些结果提供了不同番茄品种不同特性的有价值信息，在购买和改良番茄品种时可以参考这些信息。
