Influence of seasonality on the phenolic composition of Secondatia floribunda A.DC (Apocynaceae) during its phenological cycle

Ribeiro, Daiany Alves; Macêdo, Delmácia Gonçalves de; Boligon, Aline Augusti; Menezes, Irwin Rose Alencar de; Souza, Marta Maria de Almeida; Costa, José Galberto Martins da

doi:10.1007/s11738-019-2975-x

Cited by 8 publications

(5 citation statements)

References 49 publications

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“…Heather stands out for its rich and varied chemical composition, and features a wide range of biological activity. Nonetheless, the accumulation of biologically active substances in heather plants depends heavily on a number of factors related to the plant itself (the vegetation phase and the organ) as well as on its exposure to diverse environmental conditions (climatic factors, altitude, and soil properties) [21][22][23][24]. Our studies proved that the accumulation of certain classes of phenolic compounds in various organs of heather was determined by the phase of its vegetation.…”

Section: Discussionmentioning

confidence: 53%

“…Biosynthesis and accumulation of secondary metabolites in plants, including phenolic compounds, depend on a number of factors, such as species exclusiveness, vegetation period, and growing conditions (climatic factors, altitude, and soil properties) [21][22][23][24]. Despite the fact that the phenolic compounds get synthesized in all parts of the plant, their content in various organs change in the course of the plant growth and development.…”

Section: Introductionmentioning

confidence: 99%

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Changes in the Content of Some Groups of Phenolic Compounds and Biological Activity of Extracts of Various Parts of Heather (Calluna vulgaris (L.) Hull) at Different Growth Stages

Chepel

Lisun

Skrypnik

2020

Plants

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Heather (Calluna vulgaris (L.) Hull.) is noted for a diverse chemical composition and a broad range of biological activity. The current study was aimed at monitoring changes in the accumulation of certain groups of phenolic compounds in various organs of heather (leaves, stems, roots, rhizomes, flowers, and seeds) at different growth stages (vegetative, floral budding, flowering, and seed ripening) as well as studying antioxidant (employing the DPPH and FRAP assays) and antibacterial activity of its extracts. The highest total amount of phenolic compounds, tannins, flavonoids, hydroxycinnamic acids, and proanthocyanidins was detected in leaves and roots at all growth stages, except for the flowering stage. At the flowering stage, the highest content of some groups of phenolic compounds (flavonoids, proanthocyanidins, and anthocyanins) was observed in flowers. Highest antioxidant activity was recorded for the flower extracts (about 500 mg of ascorbic acid equivalents per gram according to the DPPH assay) and for the leaf extract at the ripening stage (about 350 mg of ascorbic acid equivalents per gram according to the FRAP assay). Strong correlation was noted between antioxidant activity (DPPH) and the content of anthocyanins (r = 0.75, p ≤ 0.01) as well as between antioxidant activity (FRAP) and the total content of phenolic compounds (r = 0.77, p ≤ 0.01). Leaf extracts and stem extracts turned out to perform antibacterial action against both gram-negative and gram-positive bacteria, whereas root extracts appeared to be active only against B. subtilis, and rhizome extracts against E. coli.

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Section: Discussionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Changes in the Content of Some Groups of Phenolic Compounds and Biological Activity of Extracts of Various Parts of Heather (Calluna vulgaris (L.) Hull) at Different Growth Stages

Chepel

Lisun

Skrypnik

2020

Plants

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“…Previous research found that both developmental stages and plant genotypes affect phenolic levels in plant organs [ 44 , 45 , 46 , 47 , 48 , 49 ]. Such variations are consistent with our findings, in which we found significant TPC variations among CG accessions, with siliques having the highest levels, followed by flowers, and the LS organs having the lowest TPC during the flowering stage.…”

Section: Discussionmentioning

confidence: 99%

Variation in Phenolic Compounds and Antioxidant Activity of Various Organs of African Cabbage (Cleome gynandra L.) Accessions at Different Growth Stages

et al. 2021

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The presence of nutritional and health-benefiting compounds has increased awareness of orphan leafy vegetables such as Cleome gynandra (CG), whose phytochemicals vary among accessions and organs during growth. This study investigated the polyphenol accumulation and antioxidant activities (AOA) of eight CG accessions from the vegetative stage to the seed set stage. Plants were separated into leaves and stem (LS), flowers, and silique organs, and extracts were analyzed for total phenolic content (TPC), total flavonoid content (TFC), rutin and astragalin content, and AOA using 2,2-diphenyl-1-picrylhydrazyl-hydrate (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS). There were significant interaction effects of growth stages and accessions that contributed to changes in compounds content and AOA. TPC accumulated in plant generative parts, whereas flavonoids accumulated in young plant organs. HPLC profiling revealed that rutin was the most abundant compound in all organs, with flowers having the highest levels, while astragalin was only found in flowers. Silique extracts, particularly accession KF-14, recorded the highest TPC, which corresponded to the strongest radical scavenging activity in ABTS and DPPH assays and a strong linear correlation. The germplasm contained accessions with significantly different and varying levels of bioactive compounds and AOA. These findings potentiate the exploitation of CG organs such as siliques for AOA, flowers for rutin and astragalin, and young shoots for flavonoids. Moreover, the significant accumulation of the compounds in particular accessions of the germplasms suggest that such superior accessions may be useful candidates in genetic breeding programs to improve CG vegetable.

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“…Through their study, it was found that the main active ingredients contained therein were all highest during the reproductive phase (around the flowering period). The reason may be that the reproductive activity of plants attracted insects, and their contact with plants stimulated the production of compounds, which was thought to be part of the plant's defense mechanism (Ribeiro et al., 2019).…”

Section: Resultsmentioning

confidence: 99%

Effects of different harvesting times and processing methods on the quality of cultivated Fritillaria cirrhosa D. Don

et al. 2021

Food Science & Nutrition

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Fritillaria cirrhosa D. Don is the major source plants of traditional Chinese medicine Fritillariae Cirrhosae Bulbus (FCB). Domestication, introduction, and cultivation is an important strategy to alleviate the shortage of endangered medicinal plants of F. cirrhosa. However, until now, the yield and quality changes of FCB in different harvest periods and drying treatments after harvest were not well understood. Therefore, in this paper, we investigated the yield and quality of cultivated F. cirrhosa at different harvest periods and postharvest processing methods. The results showed that dry weight per bulb ranged from 0.8913 to 1.4681 g and reached the highest at the wilting stage. The soluble sugar content ranged from 0.075% to 0.127% and reached the highest at the wilting stage. The content of total alkaloids ranged from 0.088% to 0.218% and reached the highest at the late‐flowering stage. The contents of peimisine, sipeimine, peimine, and peiminine were 0.01178%‐0.02615%, 0%–0.01713%, 0%–0.00745%, and 0%–0.00621% and reached the highest at the late‐flowering period, wilting period, young fruit period, and initial flowering period, respectively. For the two different postharvest processing methods, the contents of total alkaloids and the 16 main characteristic peaks did not exhibit significant differences. Still, the alkaloid contents of the oven drying after washing were slightly higher than the sun drying. In conclusion, the best harvest period is the wilting period of F. cirrhosa, and oven drying after washing is more beneficial to ensure the quality of FCB and improve productivity.

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Influence of seasonality on the phenolic composition of Secondatia floribunda A.DC (Apocynaceae) during its phenological cycle

Cited by 8 publications

References 49 publications

Changes in the Content of Some Groups of Phenolic Compounds and Biological Activity of Extracts of Various Parts of Heather (Calluna vulgaris (L.) Hull) at Different Growth Stages

Changes in the Content of Some Groups of Phenolic Compounds and Biological Activity of Extracts of Various Parts of Heather (Calluna vulgaris (L.) Hull) at Different Growth Stages

Variation in Phenolic Compounds and Antioxidant Activity of Various Organs of African Cabbage (Cleome gynandra L.) Accessions at Different Growth Stages

Effects of different harvesting times and processing methods on the quality of cultivated Fritillaria cirrhosa D. Don

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