title: Characterization of phytochemicals and antioxidant activities of a purple tomato (Solanum lycopersicum L.).
abstract: A newly developed nongenetically modified purple tomato V118 was investigated for its phytochemical compositions and antioxidant activities. A highly efficient and sensitive UPLC method was developed for both the phenolics and carotenoids, which showed that in addition to the phytochemicals commonly known for tomatoes, V118 had a unique composition of anthocyanins. The total carotenoid content of V118 was 234.78 μg/g dry weight (DW), and the total phenolic content was 659.11 mg GAE/100 g DW. The antioxidant activities of the lipophilic extract as measured by the PCL and ORAC-L assays were 30.11 μmol TE/g DW and 11.97 μmol TE/g DW, respectively, while the hydrophilic extracts as determined by the ORAC-H and FRAP assays were 323.23 μmol TE/g DW and 54.95 μmol AAE/g DW, respectively. The LC-MS study showed three major anthocyanins, which were mainly acylglycosides of petunidin and malvidin. This study showed that purple tomatoes such as V118 possess additional phytochemicals like anthocyanins, which can potentially have added health benefits.
authors: State Key Lab of Food Science and Technology, Institute for Advanced Study, Nanchang University, Nanchang 330047, Jiangxi, China.
authors: Hongyan
authors: H
authors: Li
authors: Zeyuan
authors: Z
authors: Deng
authors: Ronghua
authors: R
authors: Liu
authors: J Christopher
authors: JC
authors: Young
authors: Honghui
authors: H
authors: Zhu
authors: Steven
authors: S
authors: Loewen
authors: Rong
authors: R
authors: Tsao
mesh_terms: D000872:Anthocyanins / Q000737:chemistry / Q000378:metabolism; D000975:Antioxidants / Q000737:chemistry* / Q000378:metabolism; D018551:Solanum lycopersicum / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D010636:Phenols / Q000737:chemistry / Q000378:metabolism; D010936:Plant Extracts / Q000737:chemistry* / Q000378:metabolism; D030821:Plants, Genetically Modified / Q000737:chemistry* / Q000235:genetics
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts