<b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd

The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content w...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Beatriz Gonçalves Brasileiro [verfasserIn] João Paulo Viana Leite [verfasserIn] Vicente Wagner Dias Casali [verfasserIn] Virgínia Ramos Pizziolo [verfasserIn] Olívia Gonçalves Leão Coelho [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	portulacaceae waterleaf DPPH polyphenol

Übergeordnetes Werk:	In: Acta Scientiarum: Agronomy - Eduem (Editora da Universidade Estadual de Maringá), 2008, 37(2015), 2, Seite 249-255
Übergeordnetes Werk:	volume:37 ; year:2015 ; number:2 ; pages:249-255

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4025/actasciagron.v37i2.19130

Katalog-ID:	DOAJ013301233

Internformat


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912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2006
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2009
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2031
912			\|a GBV_ILN_2038
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publishDate	2015
allfields	10.4025/actasciagron.v37i2.19130 doi (DE-627)DOAJ013301233 (DE-599)DOAJe7788f888be6497da6b4df6f21118763 DE-627 ger DE-627 rakwb eng S1-972 Beatriz Gonçalves Brasileiro verfasserin aut <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. portulacaceae waterleaf DPPH polyphenol Agriculture (General) João Paulo Viana Leite verfasserin aut Vicente Wagner Dias Casali verfasserin aut Virgínia Ramos Pizziolo verfasserin aut Olívia Gonçalves Leão Coelho verfasserin aut In Acta Scientiarum: Agronomy Eduem (Editora da Universidade Estadual de Maringá), 2008 37(2015), 2, Seite 249-255 (DE-627)519765672 (DE-600)2257087-1 18078621 nnns volume:37 year:2015 number:2 pages:249-255 https://doi.org/10.4025/actasciagron.v37i2.19130 kostenfrei https://doaj.org/article/e7788f888be6497da6b4df6f21118763 kostenfrei http://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/19130 kostenfrei https://doaj.org/toc/1679-9275 Journal toc kostenfrei https://doaj.org/toc/1807-8621 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 37 2015 2 249-255
spelling	10.4025/actasciagron.v37i2.19130 doi (DE-627)DOAJ013301233 (DE-599)DOAJe7788f888be6497da6b4df6f21118763 DE-627 ger DE-627 rakwb eng S1-972 Beatriz Gonçalves Brasileiro verfasserin aut <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. portulacaceae waterleaf DPPH polyphenol Agriculture (General) João Paulo Viana Leite verfasserin aut Vicente Wagner Dias Casali verfasserin aut Virgínia Ramos Pizziolo verfasserin aut Olívia Gonçalves Leão Coelho verfasserin aut In Acta Scientiarum: Agronomy Eduem (Editora da Universidade Estadual de Maringá), 2008 37(2015), 2, Seite 249-255 (DE-627)519765672 (DE-600)2257087-1 18078621 nnns volume:37 year:2015 number:2 pages:249-255 https://doi.org/10.4025/actasciagron.v37i2.19130 kostenfrei https://doaj.org/article/e7788f888be6497da6b4df6f21118763 kostenfrei http://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/19130 kostenfrei https://doaj.org/toc/1679-9275 Journal toc kostenfrei https://doaj.org/toc/1807-8621 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 37 2015 2 249-255
allfields_unstemmed	10.4025/actasciagron.v37i2.19130 doi (DE-627)DOAJ013301233 (DE-599)DOAJe7788f888be6497da6b4df6f21118763 DE-627 ger DE-627 rakwb eng S1-972 Beatriz Gonçalves Brasileiro verfasserin aut <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. portulacaceae waterleaf DPPH polyphenol Agriculture (General) João Paulo Viana Leite verfasserin aut Vicente Wagner Dias Casali verfasserin aut Virgínia Ramos Pizziolo verfasserin aut Olívia Gonçalves Leão Coelho verfasserin aut In Acta Scientiarum: Agronomy Eduem (Editora da Universidade Estadual de Maringá), 2008 37(2015), 2, Seite 249-255 (DE-627)519765672 (DE-600)2257087-1 18078621 nnns volume:37 year:2015 number:2 pages:249-255 https://doi.org/10.4025/actasciagron.v37i2.19130 kostenfrei https://doaj.org/article/e7788f888be6497da6b4df6f21118763 kostenfrei http://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/19130 kostenfrei https://doaj.org/toc/1679-9275 Journal toc kostenfrei https://doaj.org/toc/1807-8621 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 37 2015 2 249-255
allfieldsGer	10.4025/actasciagron.v37i2.19130 doi (DE-627)DOAJ013301233 (DE-599)DOAJe7788f888be6497da6b4df6f21118763 DE-627 ger DE-627 rakwb eng S1-972 Beatriz Gonçalves Brasileiro verfasserin aut <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. portulacaceae waterleaf DPPH polyphenol Agriculture (General) João Paulo Viana Leite verfasserin aut Vicente Wagner Dias Casali verfasserin aut Virgínia Ramos Pizziolo verfasserin aut Olívia Gonçalves Leão Coelho verfasserin aut In Acta Scientiarum: Agronomy Eduem (Editora da Universidade Estadual de Maringá), 2008 37(2015), 2, Seite 249-255 (DE-627)519765672 (DE-600)2257087-1 18078621 nnns volume:37 year:2015 number:2 pages:249-255 https://doi.org/10.4025/actasciagron.v37i2.19130 kostenfrei https://doaj.org/article/e7788f888be6497da6b4df6f21118763 kostenfrei http://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/19130 kostenfrei https://doaj.org/toc/1679-9275 Journal toc kostenfrei https://doaj.org/toc/1807-8621 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 37 2015 2 249-255
allfieldsSound	10.4025/actasciagron.v37i2.19130 doi (DE-627)DOAJ013301233 (DE-599)DOAJe7788f888be6497da6b4df6f21118763 DE-627 ger DE-627 rakwb eng S1-972 Beatriz Gonçalves Brasileiro verfasserin aut <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. portulacaceae waterleaf DPPH polyphenol Agriculture (General) João Paulo Viana Leite verfasserin aut Vicente Wagner Dias Casali verfasserin aut Virgínia Ramos Pizziolo verfasserin aut Olívia Gonçalves Leão Coelho verfasserin aut In Acta Scientiarum: Agronomy Eduem (Editora da Universidade Estadual de Maringá), 2008 37(2015), 2, Seite 249-255 (DE-627)519765672 (DE-600)2257087-1 18078621 nnns volume:37 year:2015 number:2 pages:249-255 https://doi.org/10.4025/actasciagron.v37i2.19130 kostenfrei https://doaj.org/article/e7788f888be6497da6b4df6f21118763 kostenfrei http://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/19130 kostenfrei https://doaj.org/toc/1679-9275 Journal toc kostenfrei https://doaj.org/toc/1807-8621 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 37 2015 2 249-255
language	English
source	In Acta Scientiarum: Agronomy 37(2015), 2, Seite 249-255 volume:37 year:2015 number:2 pages:249-255
sourceStr	In Acta Scientiarum: Agronomy 37(2015), 2, Seite 249-255 volume:37 year:2015 number:2 pages:249-255
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	portulacaceae waterleaf DPPH polyphenol Agriculture (General)
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container_title	Acta Scientiarum: Agronomy
authorswithroles_txt_mv	Beatriz Gonçalves Brasileiro @@aut@@ João Paulo Viana Leite @@aut@@ Vicente Wagner Dias Casali @@aut@@ Virgínia Ramos Pizziolo @@aut@@ Olívia Gonçalves Leão Coelho @@aut@@
publishDateDaySort_date	2015-01-01T00:00:00Z
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language_de	englisch
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callnumber-first	S - Agriculture
author	Beatriz Gonçalves Brasileiro
spellingShingle	Beatriz Gonçalves Brasileiro misc S1-972 misc portulacaceae misc waterleaf misc DPPH misc polyphenol misc Agriculture (General) <b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd
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title	<b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd
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title_sort	<b<the influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<talinum triangulare</i< (jacq.) willd
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title_auth	<b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd
abstract	The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare.
abstractGer	The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare.
abstract_unstemmed	The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare.
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title_short	<b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd
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<b<The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i<Talinum triangulare</i< (Jacq.) Willd

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