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Chemical characterization of leaves of organically grown carrot Dacus carota L.) in various stages of development for use as food Ciênc. Tecnol. Aliment.
Leite,Camila Wihby; Boroski,Marcela; Boeing,Joana Schuelter; Aguiar,Ana Carolina; França,Polyana Batoqui; Souza,Nilson Evelázio de; Visentainer,Jesuí Vergílio.
In Brazil, street markets and vegetable distributors discard vegetable leaves and stems, including those of carrot (Dacus carota L.). Seeking to reduce the waste of vegetable parts, this study characterized chemically the leaves of organically grown carrot in three stages of development to determine the best time for their removal and consumption as food. The leaves were dehydrated in an oven at 70 °C for 43 hours and analyzed for chemical composition, antioxidant activity, chlorophyll content, fatty acid composition, and also calcium (Ca), sodium (Na), potassium (K), magnesium (Mg), manganese (Mn), iron (Fe), zinc (Zn), and copper (Cu) contents. The analyses indicated 100 days of development as the ideal stage for the removal and consumption of carrot...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carrot leaves; Development; Antioxidant activity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300028
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Evaluation of beetroot (Beta vulgaris L.) leaves during its developmental stages: a chemical composition study Ciênc. Tecnol. Aliment.
Biondo,Polyana Batoqui França; Boeing,Joana Schuelter; Barizão,Érica Oliveira; Souza,Nilson Evelazio de; Matsushita,Makoto; Oliveira,Claudio Celestino de; Boroski,Marcela; Visentainer,Jesuí Vergílio.
Beetroot leaves (Beta vulgaris L.) are commonly cut off and discarded before using its bulb due to lack of knowledge of how to use them. Aiming at using these leaves, in the present study, in natura and dehydrated beetroot leaves were chemically characterized in terms of fatty acid composition, proximate composition, minerals, total phenolic compounds (TPC), and antioxidant activity by DPPH• in different stages (60, 80, and 100 days) of development. The beetroot leaves showed significant levels of protein and lipids in all developmental stages, and all proximate composition nutrients decreased during these maturation stages; the highest content was observed at 60 days. The Fe content decreased during the developmental stages (from 342.75 to 246.30...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beetroot leaves; Minerals; Fatty acid; Alpha-linolenic acid; Antioxidant activity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000100014
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Evaluation of omega-3 fatty acids content and antioxidant activity in wheat (Triticum aestivum L.) leaves Ciência e Agrotecnologia
Aguiar,Ana Carolina de; Boroski,Marcela; Bonafé,Elton Gutendorfer; Almeida,Vanessa Vivian de; Souza,Nilson Evelázio de; Visentainer,Jesuí Vergílio.
The objective of this study was to quantify alpha-linolenic acid (LNA, 18:3n-3) of dried wheat leaves, harvested at different development stages (20, 40 and 80 days), to determine the antioxidant potential and the total phenolic compounds of leaves harvested at 80 days, as well as to perform mineral analysis (Na, K, Fe, Ca, Mg, P, Zn, Cu and Mn). It was observed a predominance of polyunsaturated fatty acids (PUFA) compared to saturated fatty acids (SFA) in the lipid fraction of leaves. Leaves collected in all periods presented ratios of PUFA/SFA, omega-6 and omega-3 fatty acids (n-6/n-3) considered suitable for food. The highest content of LNA was found in leaves harvested at 60 days, corresponding to 2.146,72 mg 100 g-1 dried matter. The range time...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alpha-linolenic acid; Phenolic compounds; Antioxidant activity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400012
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Proximate composition and quantification of fatty acids in breaded chicken steak Ciênc. Tecnol. Aliment.
Tanamati,Ailey Aparecida Coelho; Aguiar,Ana Carolina; Boroski,Marcela; Montanher,Paula Fernandes; Souza,Nilson Evelázio de; Godoy,Helena Teixeira; Matsushita,Makoto; Visentainer,Jesuí Vergílio.
The aim of this work was to analyze the fatty acid and proximate composition of five brands of breaded chicken steak (A, B, C, D, and E) by accurate chromatographic quantification and to compare the experimental results with food label nutrition facts. The protein values of all brands were in agreement with the Brazilian regulation values, except for that of sample E, which presented the highest lipid content. Thirteen fatty acids were identified in the studied brands and the major ones were oleic acid, linoleic acid, and palmitic acid. The polyunsaturated fatty acid/saturated fatty acid ratios were within the values considered appropriate for human health; however, the high n-6/n-3 ratios found can result in an unbalanced intake of these fat acids. Only...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken steak; Composition; Fatty acid; Nutritional labeling.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000100026
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Quantificação de ácido alfa-linolênico em caules e folhas de linho (Linum usitatissimum L.) colhidos em diferentes estágios de desenvolvimento Ciência e Agrotecnologia
Aguiar,Ana Carolina de; Aguiar,Sílvia Cristina de; Boroski,Marcela; Souza,Nilson Evelázio de; Matsushita,Makoto; Visentainer,Jesuí Vergílio.
O objetivo deste estudo foi quantificar o ácido alfa-linolênico [LNA, 18:3 (n-3)], avaliar a composição centesimal das folhas e caules de linho (Linum usitatissimum L.) submetidos à secagem e colhidos em diferentes estágios de desenvolvimento (40, 80 e 120 dias), e determinar o potencial antioxidante das folhas colhidas aos 80 dias através do teste com o radical DPPH. As folhas obtiveram maiores teores de cinzas, proteína e lipídios totais em relação aos caules. Tanto as folhas quanto os caules apresentaram razões de AGPI/AGS e n-6/n-3 dentro dos valores considerados adequados para a alimentação. Os caules colhidos nos diferentes tempos não apresentaram diferenças significativas (P<0,05), quanto ao teor de LNA. As folhas colhidas aos 80 dias...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ômega-3; Ácidos graxos; Atividade antioxidante; DPPH.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000600021
Registros recuperados: 5
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