A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities
The objective of the present study is to investigate nutritional and antioxidant activity of four types of organic tomato cultivars. The differences in tomato quality are also tested between groups with or without treatment using an organic biostimulator, Stimplex. Total phenolic compounds (TPC), ly...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2017/5020742 |
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| author | Varinder Sidhu Dilip Nandwani Li Wang Ying Wu |
| author_facet | Varinder Sidhu Dilip Nandwani Li Wang Ying Wu |
| author_sort | Varinder Sidhu |
| collection | DOAJ |
| description | The objective of the present study is to investigate nutritional and antioxidant activity of four types of organic tomato cultivars. The differences in tomato quality are also tested between groups with or without treatment using an organic biostimulator, Stimplex. Total phenolic compounds (TPC), lycopene, β-carotene, DPPH free radical scavenging activity, reducing power, and color parameters were investigated in the current study. The results showed that there was no significant difference in TPC among cultivars regardless of Stimplex treatment. Higher lycopene and β-carotene were obtained in Stimplex treated tomatoes. Lycopene and β-carotene contents were significantly different among cultivars (P<0.05). DPPH scavenging activity in controlled group was significantly higher than that in the Stimplex treated tomatoes (P<0.05). No significant difference in reducing power was detected among cultivars treatment groups. The study showed that the darker the tomato color, the higher the lycopene and β-carotene contents and the stronger the reducing power. |
| format | Article |
| id | doaj-art-7dcb1970bccd4510bd223413e579570d |
| institution | Kabale University |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-7dcb1970bccd4510bd223413e579570d2025-08-20T03:35:23ZengWileyJournal of Food Quality0146-94281745-45572017-01-01201710.1155/2017/50207425020742A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant ActivitiesVarinder Sidhu0Dilip Nandwani1Li Wang2Ying Wu3Tennessee State University, 3500 John A. Merritt Blvd., Nashville, TN 37209, USATennessee State University, 3500 John A. Merritt Blvd., Nashville, TN 37209, USATennessee State University, 3500 John A. Merritt Blvd., Nashville, TN 37209, USATennessee State University, 3500 John A. Merritt Blvd., Nashville, TN 37209, USAThe objective of the present study is to investigate nutritional and antioxidant activity of four types of organic tomato cultivars. The differences in tomato quality are also tested between groups with or without treatment using an organic biostimulator, Stimplex. Total phenolic compounds (TPC), lycopene, β-carotene, DPPH free radical scavenging activity, reducing power, and color parameters were investigated in the current study. The results showed that there was no significant difference in TPC among cultivars regardless of Stimplex treatment. Higher lycopene and β-carotene were obtained in Stimplex treated tomatoes. Lycopene and β-carotene contents were significantly different among cultivars (P<0.05). DPPH scavenging activity in controlled group was significantly higher than that in the Stimplex treated tomatoes (P<0.05). No significant difference in reducing power was detected among cultivars treatment groups. The study showed that the darker the tomato color, the higher the lycopene and β-carotene contents and the stronger the reducing power.http://dx.doi.org/10.1155/2017/5020742 |
| spellingShingle | Varinder Sidhu Dilip Nandwani Li Wang Ying Wu A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities Journal of Food Quality |
| title | A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities |
| title_full | A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities |
| title_fullStr | A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities |
| title_full_unstemmed | A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities |
| title_short | A Study on Organic Tomatoes: Effect of a Biostimulator on Phytochemical and Antioxidant Activities |
| title_sort | study on organic tomatoes effect of a biostimulator on phytochemical and antioxidant activities |
| url | http://dx.doi.org/10.1155/2017/5020742 |
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