Germination under Moderate Salinity Increases Phenolic Content and Antioxidant Activity in Rapeseed (Brassica napus var oleifera Del.) Sprouts

Falcinelli, Beatrice; Sileoni, Valeria; Marconi, Ombretta; Perretti, Giuseppe; Quinet, Muriel; Lutts, Stanley; Benincasa, Paolo

doi:10.3390/molecules22081377

Cited by 50 publications

(43 citation statements)

References 35 publications

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“…In particular, dietary intake of free phenolics may be more rapidly absorbed during digestion and released in the body, inhibiting oxidation of low-density lipoprotein (LDL) cholesterol and liposomes, while bound forms may have chemopreventiveactivity against colon cancer [19]. However, it is worth noting that in other sprouts of herbaceous species, it has been found that the antioxidant activity of bound phenolics is lower than that of free phenolics [20,21]. For this reason, due to the nutritional relevance and effectiveness of free PAs, in this experiment, we detected only the free fraction of PAs and we cannot say whether VA was turned to the bound form or converted to other compounds.…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2020

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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.

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Section: Discussionmentioning

confidence: 99%

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

et al. 2020

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“…Flavonoids represent the main group of polyphenols, with a wide array of biological roles, including lipid peroxidation inhibition [97][98][99]. Salt-induced increases in antioxidant phenolic levels have been reported in different plant species [100,101]. In S. vulgaris, a significant increase in total phenolic compounds was observed only in populations 1 (Mog) and 3 (Serp.…”

Section: Discussionmentioning

confidence: 99%

Identification of Salt and Drought Biochemical Stress Markers in Several Silene vulgaris Populations

et al. 2019

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This study attempted to determine short-term responses to drought and salt stress in different Silene vulgaris genotypes and to identify potential abiotic stress biochemical indicators in this species. Four populations from contrasting habitats were subjected to drought and three levels of salinity under controlled greenhouse conditions. The determination of several growth parameters after the stress treatments allowed for ranking the tolerance to stress of the four analyzed populations on the basis of their relative degree of stress-induced growth inhibition. This was then correlated with changes in the leaf levels of monovalent ions (Na+, Cl−, and K+), photosynthetic pigments (chlorophylls a and b, carotenoids), osmolytes (total soluble sugars, proline), and non-enzymatic antioxidants (total phenolic compounds and flavonoids). Despite the observed differences, all four populations appeared to be relatively tolerant to both stress conditions, which in general did not cause a significant degradation of photosynthetic pigments and did not generate oxidative stress in the plants. Drought and salinity tolerance in S. vulgaris was mostly dependent on the use of Na+ and K+ for osmotic adjustment under stress, a mechanism that appeared to be constitutive, and not stress-induced, since relatively high concentrations of these cations (without reaching toxic levels) were also present in the leaves of control plants. The inhibition of additional transportation of toxic ions to the leaves, in response to increasing external salinity, seemed to be a relevant mechanism of tolerance, specifically to salt stress, whereas accumulation of soluble sugars under drought conditions may have contributed to tolerance to drought.

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“…Salt tolerance is frequently studied by adding NaCl to the growth medium of plant in order to induce the salt stress [61]. The tolerance of water spinach seeds towards salinity was studied using different level NaCl solution as shown in Table 3.…”

Section: Effect Of Salinity On Salt Tolerancementioning

confidence: 99%

Impact of Salinity Stress on Germination of Water Spinach (Ipomoea aquatica)

Ibrahim

Abas

Zahra

2019

ARRB

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Aims: Salinity is one of the major abiotic stress that negatively affects plant growth in germination and early seedling stages. Salinity has becoming a serious problem as most of the parts of worldwide lands were affected by high salt concentration. Therefore, the effects of salinity ranging from 0 mM, 25 mM, 50 mM and 75 mM Sodium chloride (NaCl) concentrations on germination and early seedling growth of water spinach and their salt tolerance mechanism. Study Design: Completely Randomized Design (CRD). Place and Duration of Study: This study was conducted at Tissue Culture Laboratory, Department of Biology, Faculty of Science in University Putra Malaysia (UPM) from June to August, 2018. Methodology: In order to study the effects of salinity on water spinach, several parameters have been taken into account for measurement which include water uptake percentage, germination percentage, germination index, mean germination time, relative injury rate, seed vigor, seedling height reduction, hypocotyl and radicle length, seedling biomass, salt tolerance, total phenolic content and total flavonoids contents. Results: The results obtained showed that salinity adversely reduced water uptake efficiency, seed vigor, hypocotyl and radicle length, total phenolic content and total flavonoids content of water spinach. The seedling height reduction of water spinach increased significantly in relative to increasing salinity. However, seeds treated in mild salt concentration at 25 mM of NaCl showed an increment of germination percentage and germination index. Conclusion: Salt tolerance of water spinach increased as the response towards increasing salinity.

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Germination under Moderate Salinity Increases Phenolic Content and Antioxidant Activity in Rapeseed (Brassica napus var oleifera Del.) Sprouts

Cited by 50 publications

References 35 publications

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

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

Identification of Salt and Drought Biochemical Stress Markers in Several Silene vulgaris Populations

Impact of Salinity Stress on Germination of Water Spinach (Ipomoea aquatica)

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