Combined Effects of Cytokinin and UV-C Light on Phenolic Pattern in Ceratonia siliqua Shoot Cultures

Costa-Pérez, Antonio; Ferrer, Marı́a A.; Calderón, Antonio A.

doi:10.3390/agronomy13030621

Cited by 9 publications

(4 citation statements)

References 49 publications

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“…Moreover, it is worth mentioning that, apart from metal chelating activity, TPC showed no correlation with the rest of the antioxidant assays analyzed. Studies on the relationship between TPC and antioxidant activities show contradictory results; whereas some authors have reported high correlation values [29,47,48], others found no correlation between these parameters [39,49]. These results suggest that phenolic compounds are not the only contributors to the antioxidant activities in some plant extracts, and other phytochemicals could also contribute to the total antioxidant activity of these extracts.…”

Section: Discussionmentioning

confidence: 91%

Influence of Genotype on Antioxidant Activity and Phenolic Profile of Fennel Bulbs

Rubio,

López-Orenes,

Ferrer

et al. 2024

Agronomy

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Currently, fennel bulb is becoming a highly demanded and consumed vegetable due to its licorice flavor and health benefits. Although the chemical composition of fennel essential oil has been extensively studied, the nonvolatile bioactive compounds of fennel bulbs have drawn less attention. Here, the phenolic profile and the antioxidant activity in terms of DPPH radical scavenging activity, reducing power, chelating ability of ferrous ions, and inhibition of lipid peroxidation were analyzed using four different fennel hybrid genotypes and three different extraction solvents (methanol, aqueous-methanol, and hot water). Antioxidant activity results revealed significant variation amongst fennel varieties (>3-fold difference for DPPH and reducing power and >2.7-fold for the inhibition of lipid peroxidation), with methanolic extracts exhibiting the highest antioxidant activity. Total phenol content peaked in the aqueous-methanol extracts, exhibiting a 2-fold difference across fennel genotypes. HPLC–PDA/MS analyses identified high levels of caffeic acid derivatives in hot water extracts, particularly in the commercial genotype. The therapeutic benefits associated with these compounds make it reasonable to use detailed phytochemical screening in fennel breeding programs to obtain varieties with new functionalities and thus higher added value.

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Section: Discussionmentioning

confidence: 91%

Influence of Genotype on Antioxidant Activity and Phenolic Profile of Fennel Bulbs

Rubio,

López-Orenes,

Ferrer

et al. 2024

Agronomy

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“…The presence of bioactive compounds in dates has attracted considerable attention from researchers, positioning this fruit as a promising natural source of antioxidants and functional food ingredients [ 76 ]. Additionally, studies have explored the effectiveness of UV-C irradiation in improving the quality and extending the shelf life of fruits and vegetables [ 2 , 77 , 78 , 79 ]. However, there is currently little information on the potential application of UV-C rays in the processing of second-grade dates.…”

Section: Resultsmentioning

confidence: 99%

UV-C Treatment Impact on the Availability of Water-Soluble Carbohydrates, Polyphenols, and Antioxidant Capacity of an Algerian Underutilized Date Fruit (Phoenix dactylifera L.)

Djaoud,

De la Peña-Armada,

García-Alonso

et al. 2024

Foods

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Underutilized dates are considered as a socioeconomically important fruit for local and global communities, such as Degla-Beida, a common date fruit variety. The aim of this research was to elucidate, for the first time, the efficiency of UV-C light treatment (over different irradiation durations 5, 10, 20, and 40 min) in the enhancement of soluble carbohydrates and phenolic compounds, and to evaluate its effect on the antioxidant capacity. Furthermore, the content of dietary fiber was analyzed: insoluble dietary fiber (11.89 g/100 g); soluble dietary fiber (5.15 g/100 g); and total dietary fiber (17.06 g/100 g). The techno-functional properties were also determined: swelling capacity (3.94 mL/g); oil holding capacity (7.38 g/g); water holding capacity (9.30 g/g); and bulk density (1.81 g/mL). All were carried out to study the potential of exploiting this underutilized fruit for other applications as for feed or food. The results suggest that UV-C technology changes minimally the total water-soluble carbohydrate content; however, this preservation technology can affect the availability of different soluble carbohydrates depending on the irradiation time (IT), increasing the high molecular weight polysaccharides with IT up to 20 min, and some oligosaccharides with IT up to 5 min. The polyphenolic content determined by HPLC-QTOF was increased when the samples were submitted to UV-C reaching the maximum at 20 min (111.62 mg/100 g) and then to decrease in those submitted to IT of 40 min (12.05 mg/100 g). Regarding antioxidant capacity in the UV-C treated samples, FRAP decreased and EC50 on DPPH increased when IT was increased, while ORAC was hardly maintained. In addition, considering UV-C radiation associated with preservation and the studied date fruit as a rich source of dietary fiber with adequate techno-functional properties, this study presents valuable information for its potential use as a new food ingredient.

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“…Previous studies have demonstrated that UV-C and gamma radiation have an impact on a variety of medicinal plants cultivated in vitro. The decrease in shoot formation at increased UV-C and gamma radiations may be due to oxidative stress induction and irrevocable toxic effects on cells that can promote the breakdown of cells in plant culture (Costa-Pérez et al, 2023). Moreover, prolonged exposure to intense light stress causes plants' photosynthetic mechanisms to become photo-inhibited (Pujari et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Enhancement Rutin Production from Capparis spinosa Plant by UV-C or Gamma Irradiation using In vitro Culture

Saleh,

M. Serag El-Din,

Youssef

2024

Egyptian Journal of Horticulture

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I N THE FRAMEWORK of climate changing adaptation and mitigation efforts, biotechnology can positively contribute to lowering the likelihood of environmental systems being affected by climate change's consequences. Caper bush is notoriously difficult to grow through traditional techniques, although despite the substantial social-economic and medical value of this species, its micropropagation has received very little study thus far. Therefore, in our study the internode segments were collected from the Southern of Sinai, and disinfected with various treatments of disinfectant agents and exposure times. Then the successive clean shootlets formed in the sterilization stage were separated and cultured on MS medium at various strengths of salts (Full, ¾, ½ and ¼ strength). The established micronodes were cut into small pieces, and re-cultured on MS medium supplemented with BAP or Kin each at 0.0, 1.0, 2.0 and 3.0 mg/l. The growing shootlets were removed individually and cultured on rooting MS medium supplemented with 0.0, 1.0, 2.0, 3.0 and 4.0 mg/l IBA or IAA for each, and finally the rooted explants were acclimatization in green house. UV-C rays exposure times (2, 4 and 6 hrs) or gamma radiation wave doses (0.5, 1.0 and 1.5 Gy) were applied. The successive rooted explants cultured on MS media containing IAA 4.0 mg/l (scored 41.66 % roots) were transferred on peat moss: vermiculite 2:1 which scored 41.66 % acclimatized plantlets. Also, gamma radiation at 1.0 Gy increased flavonoid and rutin content to 12.34 and 3.25 mg/g DW compared to 7.21 and 0.06 mg/g DW for control plants, respectively.

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Combined Effects of Cytokinin and UV-C Light on Phenolic Pattern in Ceratonia siliqua Shoot Cultures

Cited by 9 publications

References 49 publications

Influence of Genotype on Antioxidant Activity and Phenolic Profile of Fennel Bulbs

Influence of Genotype on Antioxidant Activity and Phenolic Profile of Fennel Bulbs

UV-C Treatment Impact on the Availability of Water-Soluble Carbohydrates, Polyphenols, and Antioxidant Capacity of an Algerian Underutilized Date Fruit (Phoenix dactylifera L.)

Enhancement Rutin Production from Capparis spinosa Plant by UV-C or Gamma Irradiation using In vitro Culture

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