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Total Phenolic, Flavonoid, Tomatine, and Tomatidine Contents and Antioxidant and Antimicrobial Activities of Extracts of Tomato Plant
- Source :
- International Journal of Analytical Chemistry, Vol 2015 (2015)
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- The purpose of this study was to evaluate the antioxidant and antimicrobial properties of extracts of different fractions of two tomato plant cultivars. The stems, roots, leaves, and whole-plant fractions were evaluated. Tomatine and tomatidine were identified by HPLC-DAD. The leaf extracts from the two varieties showed the highest flavonoids, chlorophyll, carotenoids, and total phenolics contents and the highest antioxidant activity determined by DPPH, ABTS, and ORAC. A positive correlation was observed between the antioxidant capacities of the extracts and the total phenolic, flavonoid, and chlorophyll contents. The Pitenza variety extracts inhibited the growth of pathogens such as E. coli O157:H7, Salmonella Typhimurium, Staphylococcus aureus, and Listeria ivanovii, yielding inhibition halos of 8.0 to 12.9 mm in diameter and MIC values of 12.5 to 3.125 mg/mL. These results suggest that tomato plant shows well potential as sources of various bioactive compounds, antioxidants, and antimicrobials.
- Subjects :
- Analytical chemistry
QD71-142
Subjects
Details
- Language :
- English
- ISSN :
- 16878760 and 16878779
- Volume :
- 2015
- Database :
- Directory of Open Access Journals
- Journal :
- International Journal of Analytical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1b0d3a691394b6db4991f8c8cf1a270
- Document Type :
- article
- Full Text :
- https://doi.org/10.1155/2015/284071