Distribution of bound and free phenolic acids in oranges (Citrus sinensis) and Grapefruits (Citrus paradisi)

1991 ◽  
Vol 57 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Hanna Peleg ◽  
Michael Naim ◽  
Russell L Rouseff ◽  
Uri Zehavi
Keyword(s):  
Phenolic Acids ◽  
Citrus Sinensis ◽  
Citrus Paradisi ◽  
Free Phenolic Acids

scholarly journals Physiologically Active Compounds in Four Species of Phellinus

2017 ◽  
Vol 12 (3) ◽  
pp. 1934578X1701200 ◽  
Author(s):  
Katarzyna Sułkowska-Ziaja ◽  
Anna Maślanka ◽  
Agnieszka Szewczyk ◽  
Bożena Muszyńska
Keyword(s):  
Phenolic Acids ◽  
High Performance ◽  
Total Content ◽  
Dry Weight ◽  
Hplc Method ◽  
Indole Compounds ◽  
Methanolic Extracts ◽  
Free Phenolic Acids ◽  
Layer Chromatography ◽  
Physiologically Active Compounds

The content of two groups of compounds with biological activity (non-hallucinogenic indole compounds and free phenolic acids) were analyzed in extracts of fruiting bodies of four species of Phellinus: P. igniarius, P. pini, P. pomaceus and P. robustus. The presence of indole compounds in methanolic extracts was analyzed by high-performance liquid chromatography and thin-layer chromatography coupled with densitometric detection. Three metabolites (serotonin, tryptamine, and L-tryptophan) were identified. The contents of individual indole compounds ranged from 1.70 (tryptamine in P. robustus) to 8.32 mg x 100 g1 dry weight (L-tryptophan in P. robustus). Four free phenolic acids were detected in methanolic extracts by the HPLC method. The total content ranged from 9.9 mg x 100 g1 DW (P. igniarius) to 32.5 mg x 100 g1 DW (P. robustus).

Free Phenolic Acids from the Seaweed Halimeda monile with Antioxidant Effect Protecting against Liver Injury

2009 ◽  
Vol 64 (9-10) ◽  
pp. 657-663 ◽  
Author(s):  
Jorge Mancini-Filho ◽  
Alexis Vidal Novoa ◽  
Ana Elsa Batista González ◽  
Elma Regina S de Andrade-Wartha ◽  
Dalva Assunção Portari Mancini
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Acids ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substances ◽  
Chemical Agents ◽  
Liver Injuries ◽  
Dpph Method ◽  
Other Substances ◽  
Free Phenolic Acids

Phenolic compounds are found in seaweed species together with other substances presenting antioxidant activity. The objective of this work was to evaluate the antioxidant activity of the free phenolic acids (FPA) fraction from the seaweed Halimeda monile, and its activity to protect the expression of hepatic enzymes in rats, under experimental CCl4 injury. The antioxidant activity was measured by the DPPH method. The FPA fraction (80 mg/kg, p.o.) was administered during 20 consecutive days to rats. The peroxidation was performed by thiobarbituric acid reactive substances (TBARS). The SOD and CAT enzymatic expressions were measured by RT/PCR. The histology technique was used to evaluate liver injuries. The expression of both, CAT and SOD genes, was more preserved by FPA. Only partial injury could be observed by histology in the liver of rats receiving FPA as compared with the control group; and CCl4 administration induced 60% more peroxidation as compared with the rats receiving FPA. These data suggest that FPA could modulate the antioxidant enzymes and oxidative status in the liver through protection against adverse effects induced by chemical agents

scholarly journals Desenvolvimento vegetativo e custo de produção de porta-enxertos de citros em recipientes para fins de subenxertia

2007 ◽  
Vol 42 (5) ◽  
pp. 679-687 ◽  
Author(s):  
Eduardo Augusto Girardi ◽  
Francisco de Assis Alves Mourão Filho ◽  
Sônia Maria de Stefano Piedade
Keyword(s):  
Citrus Sinensis ◽  
Poncirus Trifoliata ◽  
Citrus Paradisi ◽  
Citrus Jambhiri ◽  
Citrus Volkameriana

O objetivo deste trabalho foi avaliar o desenvolvimento vegetativo e estimar o custo de produção de 11 porta-enxertos de citros para fins de subenxertia, em diferentes recipientes. Avaliaram-se limão 'Cravo' clone Limeira (Citrus limonia Osbeck); citrumelo 'Swingle' (Poncirus trifoliata (L.) Raf. x Citrus paradisi Macf.); tangerina 'Cleópatra' (Citrus reshni Hort. ex Tanaka); tangerina 'Sunki' (Citrus sunki Hort. ex Tanaka); limão 'Volkameriano' clone Catânia 2 (Citrus volkameriana Pasquale); laranja 'Caipira' clone DAC (Citrus sinensis L. Osbeck); limão 'Rugoso da África' clone Mazoe (Citrus jambhiri Lush.); Poncirus trifoliata 'Davis A'; tangerina 'Sun Shu Sha Kat' (Citrus sunki Hort. ex Tanaka); tangerina 'Sunki' clone 2506 ou Fruto Grande (Citrus sunki Hort. ex Tanaka) e Poncirus trifoliata 'Barnes'. Foram utilizados tubetes de 290 mL, sacolas de 1,7 L, e porta-enxertos transplantados de tubetes de 75 mL para sacolas de polietileno de 1,7 e 4,5 L. Porta-enxertos produzidos diretamente em sacolas de 1,7 L atingem ponto ideal de subenxertia em menor tempo, de 100 a 150 dias após a semeadura, e permitem a obtenção de plantas maiores e com sistema radicular adequado, porém com custo de produção superior ao sistema de produção em tubetes de 290 mL.

scholarly journals Mudas de laranjeira 'valência' sobre dois porta-enxertos e sob diferentes manejos de adubação

2010 ◽  
Vol 32 (3) ◽  
pp. 855-864 ◽  
Author(s):  
Eduardo Augusto Girardi ◽  
Francisco de Assis Alves Mourão Filho ◽  
André Siqueira Rodrigues Alves
Keyword(s):  
Citrus Sinensis ◽  
Poncirus Trifoliata ◽  
Citrus Paradisi

O manejo da adubação é uma das principais práticas culturais para a produção de mudas cítricas em cultivo protegido. Avaliou-se o efeito de seis tipos de manejo das adubações comercialmente recomendadas na produção de mudas de laranjeira 'Valência' [Citrus sinensis (L.) Osbeck] enxertada sobre os porta-enxertos limoeiro 'Cravo' (Citrus limonia Osbeck) e citrumeleiro 'Swingle' [Citrus paradisi Macf. x Poncirus trifoliata (L.) Raf.]. As avaliações foram conduzidas a partir da transplantação dos porta-enxertos até 180 dias após a enxertia, em viveiro empresarial, em Conchal-SP. Os manejos corresponderam a duas soluções de fertilizantes solúveis aplicadas isoladamente, soluções de fertilizante solúveis associadas a fertilizante de liberação controlada e aplicação exclusiva de fertilizante de liberação controlada. O delineamento experimental adotado foi o fatorial 2 x 6 (porta-enxerto x manejo da adubação), em blocos casualizados, com três repetições e 12 mudas na parcela. O limoeiro 'Cravo' induziu maior crescimento ao enxerto. O crescimento vegetativo das mudas foi similar após o uso de fertilizantes solúveis ou de liberação controlada, apesar da grande variação de quantidades totais de nutrientes fornecidas às plantas. Desta forma, o viveirista poderá optar pelo manejo mais econômico ou prático, conforme as condições locais.

scholarly journals Performance of Minneola tangelo trees grafted over six rootstocks in Colombia Tropical Lowland (1997-2010)

2017 ◽  
Vol 66 (3) ◽  
pp. 397-402
Author(s):  
Hans Chaparro ◽  
David Ricardo Hernández ◽  
Diana Mayerly Mateus ◽  
Javier Orlando Orduz Rodriguez
Keyword(s):  
Fruit Quality ◽  
Citrus Sinensis ◽  
Productive Efficiency ◽  
Poncirus Trifoliata ◽  
Tree Size ◽  
The Other ◽  
Citrus Paradisi ◽  
Tropical Lowland ◽  
Citrus Orchards

‘Cleopatra’ tangerine (Citrus reshni hort. ex Tanaka) is a commonly used rootstock in the piedmont of Meta department, Colombia for establishing of commercial citrus orchards. Have allowed a late production entrance rootstock and produced big plants when grafted with tangelo ‘Minneola’ (C. reticulata Blanco x C. paradise Macf), decreasing the productive efficiency in plants and hard crop practices. The evaluated performance were as follows:  tree size, productive efficiency and fruit quality of tangelo ‘Minneola’ grafted in six rootstocks. It found that the cumulated production of 11 years was better with Citrumelo ‘Swingle’ (Citrus paradisi Macf. × Poncirus trifoliata (L.) Raf) with 1388.3 kg tree-1, followed by ‘Cleopatra’ (Citrus reshni hort. ex Tanaka) with 893.2 kg.tree-1, in last place was ‘Carrizo’ (Citrus sinensis Osb. × Poncirustrifoliata (L.) Raf) with 182.9 kg tree-1. The other rootstocks, had a medium production. The greatest height and canopy value, was found with ‘Cleopatra’ without significant differences with Citrumelo ‘Swingle’. In fruit quality no significant differences occurred.

scholarly journals The Impact of Processing Parameters on the Content of Phenolic Compounds in New Gluten-Free Precooked Buckwheat Pasta

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1262 ◽  
Author(s):  
Anna Oniszczuk ◽  
Kamila Kasprzak ◽  
Agnieszka Wójtowicz ◽  
Tomasz Oniszczuk ◽  
Marta Olech
Keyword(s):  
Phenolic Compounds ◽  
Phenolic Acids ◽  
High Performance ◽  
Antioxidant Properties ◽  
Total Content ◽  
Natural Antioxidants ◽  
Raw Material ◽  
Gluten Free ◽  
Free Phenolic Acids ◽  
The Impact

Buckwheat is a generous source of phenolic compounds, vitamins and essential amino acids. This paper discusses the procedure of obtaining innovative gluten-free, precooked pastas from roasted buckwheat grains flour, a fertile source of natural antioxidants, among them, phenolic acids. The authors also determined the effect of the extruder screw speed and the level of moisture content in the raw material on the quantity of free phenolic acids. The qualitative and quantitative analysis of phenolic acids in pasta was carried out using high-performance liquid chromatography electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). The chromatographic method was validated. For extracts with the highest total content of free phenolic acids and unprocessed flour from roasted buckwheat grain, the TLC-DPPH test was also performed to determine the antioxidant properties of the tested pasta. The level of moisture in the raw material had an impact on the content of phenolic acids. All pastas made from buckwheat flour moistened up to 32% exhibited a higher total content of free phenolic acids than other mixes moistened to 30 and 34% of water.

scholarly journals Phenolic Compounds and Antioxidant Activity of Sprouts from Seeds of Citrus Species

Agriculture ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 33 ◽  
Author(s):  
Beatrice Falcinelli ◽  
Franco Famiani ◽  
Andrea Paoletti ◽  
Sara D’Egidio ◽  
Fabio Stagnari ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Phenolic Acids ◽  
Citrus Sinensis ◽  
Bitter Taste ◽  
Food Additives ◽  
Citrus Limon ◽  
Total Phenols ◽  
Citrus Species ◽  
Bitter Orange

Seeds from Citrus species represent a relevant by-product of the juice industry and a potential source of bioactive compounds such as phenols and other antioxidants. Sprouting could be an intriguing idea to enhance the content of these compounds, as explored for other fruittree species. In this experiment, the sprouting performance, the concentration of total phenols and phenolic acids, and the antioxidant activity of seeds and sprouts were evaluated for bitter orange (Citrus aurantium L. seedlings), blonde orange (Citrus sinensis (L.) Osbeck cv.Biondocomune), sweet orange (Citrus sinensis (L.) Osbeck seedlings), lemon (Citrus limon (L.) Osbeck cv.Femminello), and mandarin (Citrus reticulata Blanco cv.Tardivo di Ciaculli). The germination was high for all genotypes except for mandarin, but it took 4–8 weeks. Sprouts did not differ among genotypes for size and generally had hard consistency of cotyledons and a bitter taste. The concentrations of total phenols and phenolic acids of seeds and sprouts varied with the genotype, while the antioxidant activity was not statistically different among treatments. Sprouting increased both the concentration of phenolic compounds and antioxidant activity but no correlation was found between them, suggesting that other antioxidants, besides phenols, are present. Given the slow germination and the bitter taste, Citrus sprouts appear unsuitable for homemade production aimed at direct consumption, while they may have perspectives for extraction of food additives, cosmetics, and pharmaceutics.

scholarly journals Influence of Production Parameters on the Content of Polyphenolic Compounds in Extruded Porridge Enriched with Chokeberry Fruit (Aronia melanocarpa (Michx.) Elliott)

2019 ◽  
Vol 17 (1) ◽  
pp. 166-176 ◽  
Author(s):  
Tomasz Oniszczuk ◽  
Gabriela Widelska ◽  
Anna Oniszczuk ◽  
Kamila Kasprzak ◽  
Agnieszka Wójtowicz ◽  
...  
Keyword(s):  
Phenolic Acids ◽  
Antioxidant Properties ◽  
Natural Antioxidants ◽  
Extrusion Process ◽  
Polyphenolic Compounds ◽  
Production Parameters ◽  
Aronia Melanocarpa ◽  
Beneficial Impact ◽  
Free Phenolic Acids ◽  
Different Content

AbstractChokeberry fruit (Aronia melanocarpa (Michx.) Elliott) is known for its antioxidant properties and generally beneficial impact on human health. The aim of the research was to produce innovative corn porridge with a different content of chokeberry fruit percentage-wise and to test it to determine the content of polyphenolic compounds, including flavonoids and individual free phenolic acids, and determine the antioxidant properties of analysed extracts. One of the objectives was also to identify the optimum porridge production parameters, including, among other things, the rotational speed of the extruder screw during the extrusion process.Obtained results showed that an increased content of chokeberry fruit in porridge enhances its antioxidant properties, as well the content of polyphenols, flavonoids, and free phenolic acids. The greatest free radicals scavenging activity by all extracts was reported after 10 minutes of the process. The results of the above study demonstrate that extruded porridge enriched with chokeberry fruit have a potential for becoming a good source of natural antioxidants, and the extrusion process at 80 rpm does not degrade the tested active compounds.

scholarly journals Effect of accelerated ageing on the content and composition of polyphenolic complex of wheat (Triticum aestivum L.) grains

2011 ◽  
Vol 49 (No. 1) ◽  
pp. 1-7 ◽  
Author(s):  
J. Lachman ◽  
J. Dudjak ◽  
M. Orsák ◽  
V. Pivec
Keyword(s):  
Triticum Aestivum ◽  
Phenolic Acids ◽  
Dry Matter ◽  
Statistical Significance ◽  
Sinapic Acid ◽  
Triticum Aestivum L ◽  
Hplc Method ◽  
Accelerated Ageing ◽  
Total Polyphenols ◽  
Free Phenolic Acids

The influence of accelerated ageing test (AAT), i.e. of higher temperature and humidity, on the content and composition of phenolic compounds in the grains of five cultivars of wheat (Triticum aestivum L.) was studied in the years 1998 and 1999. Total polyphenols were determined spectrophotometrically by Folin-Ciocalteau’s phenolic reagent and free phenolic acids by an HPLC method in control samples and after deterioration treatment (AAT) in the Ebi, Estica, Nela, Samanta and Šárka cultivars. Statistical significance of deterioration treatment, cultivar, cultivation site, and harvest year was proved. Content of total polyphenols increased during deterioration and levels of the individual free phenolic acid changed depending on their structures. Mean contents of total polyphenols varied from 600 to 960 mg/kg of dry matter. The increase caused by the AAT ranged between 0–20%, the greatest mean increase was observed in the cultivar Nela (by 19%). Sinapic acid (as high as 540 mg/kg of dry matter), 3-hydroxy-benzoic acid and 7-hydroxycoumarin were determined as the major phenolic acids and coumarins. A decrease of free phenolic acids containing methoxy groups in their molecules (sinapic and vanillic acids) and an increase of phenolic acids with free hydroxy groups (caffeic and gallic acids) was observed after deterioration treatment. Statistically significant (P ≤ 0.05) effect of AAT on the content of free phenolic acids was observed.

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