Seasonal variation in the antioxidant phytocompounds production from the Morus nigra leaves

Dalmagro, Ana Paula; Camargo, Anderson; Filho, Hercílio Higino da Silva; Valcanaia, Marina Merini; Jesus, Paulo César de; Zeni, Ana Lúcia Bertarello

doi:10.1016/j.indcrop.2018.06.085

Cited by 24 publications

(15 citation statements)

References 39 publications

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“…Almost all anthocyanins in senescent leaves are based on cyanidin aglycon (Lee 2002), the type that has been identified in our study. According to Dalmagro et al (2018), metabolic changes in general occur because plants constantly develop approaches to confront environmental adversities through adaptation strategies. In this context, a set of metabolic adjustments and structural and phenodynamic changes is essential.…”

Section: Phenolic Composition Valorisation In Strawberry Leavesmentioning

confidence: 99%

Influence of Organic and Chemical Fertilisation on Antioxidant Compounds Profiles and Activities in Fruits of Fragaria ananassa var. Camarosa

Aguilera

Tereucán

Ercoli

et al. 2019

J Soil Sci Plant Nutr

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Non-communicable diseases (NCDs) present a long duration and a slow progression. Good nutrition plays a predominant role in NCD prevention. In Chile, the cultivation of strawberry (Fragaria ananassa) has recently been adapted to volcanic soils with low available phosphorus (P), which can affect the fruit quality in terms of their antioxidant compound content and anti-inflammatory activities. Here, we carried out a study using organic (OF) or chemical (TF) fertilisers at 50 and 100% of the agronomical dose recommendation and without fertilisation (WF) under field conditions. Identification of phenolic compounds was done by HPLC-DAD-ESI-MS/MS, whereas antioxidant activities were determined by spectrophotometric methods. The highest concentrations of anthocyanins and ascorbic acid were obtained in the OF treatments, showing a relationship with the CUPRAC (cupric reducing antioxidant capacity) values. The highest concentrations of total polyphenols were obtained in the TF treatments, according to the TEAC (Trolox equivalent antioxidant capacity), CUPRAC and 2,2-diphenyl-1-picrylhydrazyl tests. The highest enzymatic activities were observed also in the TF treatments. Compared with WF, TF treatment downregulates the cytokine interleukin 10 (IL-10) significantly at a dose of 100%, but we could not show a significantly downregulation yet. Our results suggest that enzymatic antioxidant activity responds better to a period of prolonged exposure to P fertilisation. There is no direct correlation between enzymatic and non-enzymatic antioxidant activity with respect to treatments with different types of P fertilisation.

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Section: Phenolic Composition Valorisation In Strawberry Leavesmentioning

confidence: 99%

Influence of Organic and Chemical Fertilisation on Antioxidant Compounds Profiles and Activities in Fruits of Fragaria ananassa var. Camarosa

Aguilera

Tereucán

Ercoli

et al. 2019

J Soil Sci Plant Nutr

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“…Resultados semelhantes foram registrados por uma pesquisa em que se observaram valores de atividade antioxidante em extratos aquosos de folhas de amoreira preta de IC 50 de 1,25 mg mL -1 . 27 Essa capacidade antioxidante em extratos aquosos de folhas de Morus nigra tem sido demonstrada em estudos in vivo. Um estudo verificou os efeitos causados por uma dose de 400 mg kg -1 dia -1 ofertada a ratas Wistar grávidas diabéticas e não diabéticas.…”

Section: Composição Química E Atividade Antioxidante Dos Extratos De unclassified

“…Os ácidos clorogênico, vanílico, siríngico e p-cumárico já haviam sido relatados na literatura como constituintes em folhas de Morus nigra. 27,30,31 Em contrapartida, os ácidos 4-hidroximetilbenzoico, salicílico e elágico não foram mencionados para esta espécie em trabalho científico até o momento. O composto umbeliferona (9), com concentração de 0,261 ± 0,009 mg g -1 , destacou-se por ser a terceira substância em maior concentração, sendo a primeira vez que a umbeliferona é relatada em folhas da espécie de Morus nigra L. Dugo et al, 32 em seus estudos com extratos etanólicos de folhas de Morus alba obtidos por maceração utilizando sistema de HPLC acoplado a um espectrômetro de massas, também identificaram essa molécula.…”

Section: Perfil Fenólico Dos Extratos De Amoreira Pretaunclassified

AVALIAÇÃO DE COMPOSTOS BIOATIVOS E ATIVIDADE ANTIOXIDANTE DE EXTRATOS DE FOLHAS DE AMOREIRA PRETA (Morus nigra L.) UTILIZANDO PLANEJAMENTO EXPERIMENTAL

Schafranski¹,

Postigo²,

Vitali³

et al. 2019

Quím. Nova

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EVALUATION OF BIOATIVE COMPOUNDS AND ANTIOXIDANT ACTIVITY OF EXTRACTS OF BLACK MULBERRY LEAVES (Morus nigra L.) USING EXPERIMENTAL DESIGN. Extracts of black mulberry leaves present phytochemicals such as phenolic compounds and minerals. These substances have been studied because they show several health benefits. In this work we report the influence of drying temperature, infusion temperature and extraction time by means of factorial design monitoring the total phenolic content (CFT) of aqueous extracts of leaves of Morus nigra L. The concentrations of CFT, flavonoids, flavonols and antioxidant activity of the extracts were determined by spectrophotometry. The identification and quantification of phenolic compounds were performed by LC-ESI-MS / MS. The determination of the mineral concentration in the black mulberry leaves was performed by ICP-MS. The Pareto and surface response graphs suggested that the most efficient extractions occurred for leaves drying at lower temperatures and using higher infusion temperatures, extraction time did not show significant influence. The extracts presented concentration of CFT from 16.96 ± 0.15 to 5.73 ± 0.33 mg GAE g-1. The analyzes by LC-ESI-MS / MS allowed to identify phenolic substances not yet reported in the literature to date. In addition 10 mineral elements were determined in the black mulberry leaves at mg kg-1 concentrations range.

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“…al., 2015).Figura 10-Árvore (I) e folha (II) de amoreira (Morus nigra L). Estrutura química dos compostos antioxidantes encontrados na folha da amoreira.Fonte: (TALLINI, 2014) Dalmagro et al (2018). avaliaram a atividade antioxidante das folhas de amoreira relacionando com aspectos climáticos durante o período de dois anos.…”

unclassified

“…No presente trabalho realizou-se a aditivação do biodiesel com extrato das folhas de amendoeira-da-praia, de amoreira e de goiabeira a fim de verificar-se a eficiência destes no comportamento anticorrosivo do biodiesel. Essas plantas são ricas em substâncias antioxidantes(KATIKI et al, 2017;WANG et al, 2017;DALMAGRO et al, 2018). Com essa filosofia a proposta do trabalho foi usar os extratos das referidas plantas como aditivos ao biodiesel do óleo de soja a fim de estudar sua ação anticorrosiva em materiais que compõe o motor dos veículos e/ou tanques de armazenamento que são aço o carbono 1020, o cobre e o zinco avaliando as condições de armazenamento a temperatura ambiente e a 60 °C.…”

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Estudo da ação antioxidante e anticorrosiva de produtos naturais usados como aditivos ao biodiesel

Fernandes¹

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Seasonal variation in the antioxidant phytocompounds production from the Morus nigra leaves

Cited by 24 publications

References 39 publications

Influence of Organic and Chemical Fertilisation on Antioxidant Compounds Profiles and Activities in Fruits of Fragaria ananassa var. Camarosa

Influence of Organic and Chemical Fertilisation on Antioxidant Compounds Profiles and Activities in Fruits of Fragaria ananassa var. Camarosa

AVALIAÇÃO DE COMPOSTOS BIOATIVOS E ATIVIDADE ANTIOXIDANTE DE EXTRATOS DE FOLHAS DE AMOREIRA PRETA (Morus nigra L.) UTILIZANDO PLANEJAMENTO EXPERIMENTAL

Estudo da ação antioxidante e anticorrosiva de produtos naturais usados como aditivos ao biodiesel

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