Comparison of polyamine, phenol and flavonoid contents in plants grown under conventional and organic methods

Lima, Giuseppina Pace Pereira; Rocha, Suraya Abdallah da; Takaki, Massanori; Ramos, Paulo Roberto Rodrigues; Ono, Elizabeth Orika

doi:10.1111/j.1365-2621.2008.01725.x

Cited by 86 publications

(58 citation statements)

References 31 publications

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“…A similar, although non-significant, trend was observed for soluble polyphenols and soluble and hydrolysable flavonoids: their content was higher in organic versus conventional eggplant (Table 2). Lima et al (2008) and Raigón et al (2010) also reported greater polyphenols and flavonoids content in organic eggplant. Raigón et al (2010) concluded that polyphenols and flavonoids content is lower in conventionally grown eggplant due to higher levels of fertilization, especially nitrogen, which results in phenolic content reduction.…”

Section: Nsmentioning

confidence: 99%

Phenolic content and antioxidant capacity in organically and conventionally grown eggplant (Solanum melongena) fruits following thermal processing

et al. 2015

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Thermal processing and production practices used in vegetables can cause changes in their phytochemical contents. Eggplant is characterized by its high antioxidant content. The objective of this work was to determine levels of anthocyanins, polyphenols, and flavonoids and antioxidant capacity in organically and conventionally grown eggplant prepared fresh or subjected to one of three thermal preparation methods: boiling, baking or steaming. The soluble and hydrolyzable polyphenols and flavonoids content were quantified by Folin-Ciocalteu and Aluminum chloride methods, respectively. Anthocyanins were quantified according to the pH differential method. Antioxidant capacity was determined by DPPH and DRAC methods. The results showed differences between organic and conventional eggplant for some variables although cultivation method did not have a consistent effect. Hydrolysable polyphenol content was greater, and soluble and hydrolysable antioxidant capacities were higher in organically grown eggplant, while anthocyanin content was greater in conventionally grown eggplant. Fresh eggplant produced under conventional cultivation had a much greater content of anthocyanins compared to that of other cultivation method-thermal treatment combination. In general, steamed eggplant contained higher total polyphenol and flavonoid levels as well as greater antioxidant capacity. Steamed eggplant from both conventional and organic systems also had high amounts of anthocyanins compared to other thermal treatments.

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Section: Nsmentioning

confidence: 99%

Phenolic content and antioxidant capacity in organically and conventionally grown eggplant (Solanum melongena) fruits following thermal processing

et al. 2015

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“…Polyamines were determined by thin layer chromatography following the method described by Flores and Galston (1982), and adapted by Lima et al (2008). Fresh material of sepals, petals, stems and bracts (50 mg) were homogenized for 1 min in 5% (v/v) cold perchloric acid (Merck), using a food homogenizer.…”

Section: Determination Of Polyaminesmentioning

confidence: 99%

Endogenous levels of polyamines during cold storage of bird-ofparadise treated with biocides

Vieira¹,

Lima²,

Fernandes³

et al. 2017

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This study aimed to analyse the endogenous levels of free polyamines putrescine (Put), spermidine (spd) and spermine (spm) under the effect of 8-HQC (8-hydroxyquinoline citrate) and chlorine during cold storage of bird-of-paradise floral scapes. Flowers were selected, labelled and randomly distributed in recipients for postharvest trials. The base of flower scapes was immersed with pulsing treatments (Control, 100 chlorine, 250 or 500 mg L -1 8-HQC) for 48 h, thereafter, stored at 10.5 °C and 90% relative humidity for a period of 12 days. Flower parts were sampled for polyamines analysis at day 0, 4, 8 and 12 days during storage. All samples had higher Put levels than the control. Treatment with 500 mg L -1 8-HQC showed the highest Spd levels in bracts, while chlorine treatment had the highest Spm levels in stems. Keywords: Strelitzia reginae, inflorescence, ornamental plant, postharvest, senescence. RESUMO

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“…Os valores encontrados neste estudo, de acordo com SHERER & GODOY (2009) demonstraram que as folhas e inflorescências possuem atividade antioxidante forte, já que os valores encontrados estão entre 1 e 2. Outras pesquisas relacionam o cultivo orgânico com o incremento de substâncias com potencial antioxidante, benéficas a saúde humana (LIMA et al, 2008, LIMA & VIANELLO, 2011. A porcentagem de atividade antioxidante (%AA) corresponde a quantidade de DPPH consumida pelo antioxidante, sendo que a quantidade de antioxidante necessaria para decrescer a concentracao inicial de DPPH em 50% é denominada concentração eficiente (CE50), tambem chamada de concentracao inibitoria (CI50).…”

Section: Resultsunclassified

Concentração Das Atividades Antioxidantes Em Plantas De Jambu, Cultivadas Sob Adubação Orgânica E Mineral

2015

Enciclopédia Biosfera

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Comparison of polyamine, phenol and flavonoid contents in plants grown under conventional and organic methods

Cited by 86 publications

References 31 publications

Phenolic content and antioxidant capacity in organically and conventionally grown eggplant (Solanum melongena) fruits following thermal processing

Phenolic content and antioxidant capacity in organically and conventionally grown eggplant (Solanum melongena) fruits following thermal processing

Endogenous levels of polyamines during cold storage of bird-ofparadise treated with biocides

Concentração Das Atividades Antioxidantes Em Plantas De Jambu, Cultivadas Sob Adubação Orgânica E Mineral

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