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The potential to produce cynarin in Cynara scolymus suspension cultures in relation to their antioxidant profile

100%

Parada D., Wielanek M., Kuzniak E., Sklodowska M.

Acta Physiologiae Plantarum

2007

tom 29

nr 1 Suppl.

The potential of producing cynarin in Cynara scolymus L. suspension cultures in relation to their antioxidant profile

100%

Parada D., Wielanek M., Kuzniak E., Sklodowska M.

Zeszyty Problemowe Postępów Nauk Rolniczych

2008

tom 524

Recent studies revealed that reactive oxygen species, antioxidants and related redox signals are key elements in the regulation of plant defense responses, including the synthesis of secondary metabolites. In this work the potential of artichoke (Cynara scolymus L.) cell suspensions to produce cynarin was studied in relation to the antioxidant profile of the cultures. There were determined the total antioxidant capacity and concentrations of H₂O₂, ascorbate and total phenolics, as well as activities of ascorbate and guaiacol peroxidases, ascorbate oxidase and catalase at different stages of the culture growth cycle in relation to the production of cynarin. Suspension cultures revealed a growth-linked capacity to produce cynarin as identified by qualitative HPLC analysis. The cynarin accumulation kinetics during the exponential phase of growth correlated with the total antioxidant capacity of water-soluble antioxidants whereas the profiles of total phenols and total antioxidant capacity of water-insoluble antioxidants differed. The lowest ascorbate-related antioxidant capacity coincided with the maximum cynarin accumulation in the early stationary phase. The regulation of growth-related prooxidant/antioxidant balance in the artichoke suspension cultures involved the peroxidase/phenolics/ascorbate system scavenging H₂O₂, further affected by ascorbate- and H₂O₂-metabolizing enzymes. These results may be of interest in biotechnological strategies aimed at optimizing the production of secondary metabolites in plant cultures in vitro.

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Polyphenolic composition of Spanish cultivars of globe artichoke (Cynara cardunculus L. var. scolymus (L.) Fiori)

80%

Perez-Esteve E., Salata A., Barat J. M., Stepniowska A., Lopez-Galarza S., Nurzynska-Wierdak R.

Acta Scientiarum Polonorum. Hortorum Cultus

2018

tom 17

nr 2

Globe artichoke (Cynara cardunculus L. var. scolymus (L.) Fiori) is an edible herbaceous perennial plant that plays an important economic role in Mediterranean agriculture. In recent years, extensive research, which aimed to characterize the phenolic profile of the most important globe artichoke cultivars in Italy, has been conducted. However, very little information is available on the phenolic composition of cultivars traditionally grown in Spain. In this work, six cultivars (‘Opal’, ‘Symphony’, ‘Concerto’, ‘Madrigal’, ‘Blanca de Tudela’ and ‘A-106’) cultured in Spain were characterized according to their phenolic content. The phenolic profile differed between cultivars, and also between flower parts. The major phenolic compound in all the different cultivars was chlorogenic acid. Of the six studied cultivars, ‘Madrigal’ had the highest phenolic content.

Ograniczanie wyników

1 Acta Physiologiae Plantarum

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Zeszyty Problemowe Postępów Nauk Rolniczych

2 Kuzniak E.

2 Parada D.

2 Sklodowska M.

2 Wielanek M.

1 Barat J. M.

1 Lopez-Galarza S.

1 Nurzynska-Wierdak R.

1 Perez-Esteve E.

1 Salata A.

1 Stepniowska A.

1 2018

1 2008

1 2007

Wyniki wyszukiwania

The potential to produce cynarin in Cynara scolymus suspension cultures in relation to their antioxidant profile

The potential of producing cynarin in Cynara scolymus L. suspension cultures in relation to their antioxidant profile

Polyphenolic composition of Spanish cultivars of globe artichoke (Cynara cardunculus L. var. scolymus (L.) Fiori)