Étude de quelques aspects de la multiplication végétative in vitro de l'artichaut (Cynara scolymus L.)

Agronomie ◽  
1981 ◽  
Vol 1 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Hélène BENOIT ◽  
Georges DUCREUX
Keyword(s):  
Cynara Scolymus

scholarly journals A double-blind, placebo-controlled, cross-over study to establish the bifidogenic effect of a very-long-chain inulin extracted from globe artichoke (Cynara scolymus) in healthy human subjects

2010 ◽  
Vol 104 (7) ◽  
pp. 1007-1017 ◽  
Author(s):  
Adele Costabile ◽  
Sofia Kolida ◽  
Annett Klinder ◽  
Eva Gietl ◽  
Michael Bäuerlein ◽  
...  
Keyword(s):  
Gastrointestinal Symptoms ◽  
Gas Production ◽  
Globe Artichoke ◽  
Daily Consumption ◽  
Healthy Human ◽  
Double Blind ◽  
Cynara Scolymus ◽  
The Impact ◽  
Long Chain

There is growing interest in the use of inulins as substrates for the selective growth of beneficial gut bacteria such as bifidobacteria and lactobacilli because recent studies have established that their prebiotic effect is linked to several health benefits. In the present study, the impact of a very-long-chain inulin (VLCI), derived from globe artichoke (Cynara scolymus), on the human intestinal microbiota compared with maltodextrin was determined. A double-blind, cross-over study was carried out in thirty-two healthy adults who were randomised into two groups and consumed 10 g/d of either VLCI or maltodextrin, for two 3-week study periods, separated by a 3-week washout period. Numbers of faecal bifidobacteria and lactobacilli were significantly higher upon VLCI ingestion compared with the placebo. Additionally, levels ofAtopobiumgroup significantly increased, whileBacteroides–Prevotellanumbers were significantly reduced. No significant changes in faecal SCFA concentrations were observed. There were no adverse gastrointestinal symptoms apart from a significant increase in mild and moderate bloating upon VLCI ingestion. These observations were also confirmed byin vitrogas production measurements. In conclusion, daily consumption of VLCI extracted from globe artichoke exerted a pronounced prebiotic effect on the human faecal microbiota composition and was well tolerated by all volunteers.

scholarly journals Characterization of Proteolytic Activity of Artichoke (Cynara scolymus L.) Flower Extracts on Bovine Casein to Obtain Bioactive Peptides

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 914 ◽  
Author(s):  
Estefanía Bueno-Gavilá ◽  
Adela Abellán ◽  
María Soledad Bermejo ◽  
Eva Salazar ◽  
José María Cayuela ◽  
...  
Keyword(s):  
Proteolytic Activity ◽  
Radical Scavenging ◽  
Enzyme Concentration ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Antihypertensive Activity ◽  
Hydrolysis Time ◽  
Cynara Scolymus ◽  
Trolox Equivalent ◽  
Casein Hydrolysates

The aim of this work is to establish the most suitable proteolysis conditions to obtain bovine casein hydrolysates containing peptides with antioxidant and antihypertensive capacity. To this end, the proteolytic activity of Cynara scolymus L. flower extracts was characterized on whole bovine casein, evaluating the effect of several factors (pH, temperature, substrate concentration, enzyme concentration, and hydrolysis time). The optimal conditions to carry out the hydrolysis with the C. scolymus L. extract were as follows: pH 6.2, 50 °C, and 0.023 mg·mL−1 of extract-protein concentration. A Michaelis constant (Km) value of 5.66 mg·mL−1 and a maximum rate of reaction (Vmax) of 8.47 mUAbs∙min−1 were observed. The optimal hydrolysis time was 17 h. The casein hydrolysates obtained with these conditions contained peptides with antioxidant activity (1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity: 30.89%; Trolox equivalent antioxidant capacity (TEAC) against 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) free radical (ABTS●+): 4.43 mM Trolox equivalent·mg−1 peptide) and antihypertensive activity, showing 55.05% angiotensin-converting enzyme-I inhibition in vitro.

scholarly journals Avaliação fitoquímica e toxicológica das folhas secas da Cynara scolymus

2021 ◽  
Vol 10 (7) ◽  
pp. e45810716459
Author(s):  
Gleicy Kelly China Quemel ◽  
Juan Gonzalo Bardalez Rivera ◽  
Ana Victoria de Brito Barbosa ◽  
Marianna Paiva Maciel ◽  
Gabriel dos Santos Moura
Keyword(s):  
Cynara Scolymus

As indicações do uso de plantas medicinais para cura, prevenção e tratamento de doenças, desde a antiguidade, servem como importante fonte de informação para a busca de compostos com propriedades terapêuticas, a planta Cynara scolymus, conhecida como Alcachofra, apresenta-se como um vegetal de baixo valor calórico, rico em fibras e ferro, baixo teor de gordura, carboidratos, em sua maioria, formados pela inulina, é, indicado em dietas de diabéticos e pessoas com constipação intestinal, obesidade e também é recomendada como antianêmico. Diante dessas indicações terapêuticas este trabalho apresenta como objetivo a identificação do perfil fitoquímico no extrato hidroalccólico e análise toxicológica para avaliação de metemoglobina in vitro nos extratos hidroalcóolico e aquoso da alcachofra. A amostra para análise foi adquirida em um ervanário na Cidade de Belém, no estado do Pará, todas as análises foram feitas em triplicatas.Os resultados encontrados para análise fitoquímica qualitativa indicaram positivo para Alcaloides, Triterpenos, Taninos/Fenois e Saponinas, as demais identificações de metabolitos foram negativas; já  os resultados de  toxicidade de metamoglobina no extrato hidroalcolico toas as concentrações apresentaram porcentagens acima do permitido e no extrato aquoso, somente duas concentrações de 600 µg/mL  e 500 µg/mL, foram aceitáveis para o corpo humano. Conclui-se que a alcachofra apresenta atividade terapêutica, porém também apresentou um alto índice de porcentagem de toxicidade de metemoglobina.

Investigating the in vitro cytotoxic effects of Cynara scolymus L.

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
S Mirfenderesky ◽  
M Keyhanfar ◽  
KH Piri ◽  
A Mostafaei
Keyword(s):  
Cytotoxic Effects ◽  
Cynara Scolymus
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