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The effect of greenhouse covering materials on phytochemical composition and antioxidant capacity of tomato cultivars
Author(s) -
Ahmadi Latifeh,
Hao Xiuming,
Tsao Rong
Publication year - 2018
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.8965
Subject(s) - cultivar , caffeic acid , chemistry , ferulic acid , myricetin , phytochemical , rutin , food science , quercetin , chlorogenic acid , lutein , flavonoid , flavonols , lycopene , carotenoid , horticulture , antioxidant , biochemistry , biology , kaempferol
BACKGROUND The effect of light transmission (direct and diffuse) on the phenolic compounds of five tomato cultivars was investigated under controlled conditions in greenhouses covered with different covering materials. RESULTS The type of covering material and type of diffusion of light simultaneously affected the reducing power of cultivars. Two‐way analysis of variance showed statistically significant differences in total phenolic content for the different cultivars ( P < 0.05) but not for the covering materials. Analysis by ultrahigh‐performance liquid chromatography with diode array detection and liquid chromatography/tandem mass spectrometry showed the presence of major phenolic acid compounds such as chlorogenic acid, hydroxycinnamic acid/rutin, caffeic acid, ferulic acid and coumaric acid as well as flavonoid compounds such as myricetin, quercetin and naringenin. Most of the identified compounds showed a significant difference in different treatments due to both cultivar and covering material ( P < 0.05). Statistical analysis showed that the type of covering material used influenced the total carotenoid and lycopene content ( P < 0.05); however, the amount of lutein was not influenced by the type of covering material ( P > 0.05). CONCLUSION This study showed that the use of solar energy transmission could positively affect the reducing power of cultivars and alter the biosynthesis of certain phytochemicals that are health‐beneficial. Further study could lead to applications for producing greenhouse vegetables with greater health attributes. © 2018 Society of Chemical Industry