The variation in essential oils composition, phenolic acids and flavonoids is correlated with changes in antioxidant activity during Cinnamomum loureirii bark growth

Li, Yanqun; Tan, Bien‐Keem; Cen, Zeyu; Fu, Ying; Zhu, Xun; He, Hanjun; Kong, Dexin; Wu, Hong

doi:10.1016/j.arabjc.2021.103249

Cited by 23 publications

(5 citation statements)

References 34 publications

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“…Currently, many literature reports focus on the effect of abiotic stress on the composition of lavender essential oil [ 9 , 10 , 11 ], as well as genetic factors [ 12 ], while few works have dealt with the effect of the ontogenetic development [ 13 , 14 ]. However, other essential oil-bearing plants have demonstrated the influence of the endogenous “plant age” factor on EO yield and composition [ 15 , 16 , 17 ]. This work reports for the first time the trend of the composition of essential oils from organic Lavandula angustifolia cultivated in hilly marginal land in Tuscany (Molazzana, Garfagnana, Lucca, Italy), which was collected in four different years of its ontogenetic growth.…”

Section: Introductionmentioning

confidence: 99%

Exploitation of Marginal Hilly Land in Tuscany through the Cultivation of Lavandula angustifolia Mill.: Characterization of Its Essential Oil and Antibacterial Activity

2022

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Lavandula angustifolia Mill., known as one of the best essential oil-bearing plants, is an aromatic plant that is well cultivated in many Mediterranean regions due to its adaptability to variations in climatic and edaphic conditions. Therefore, its essential oil (EO) composition and its antimicrobial activity change as a consequence of abiotic and biotic factors. The chemical composition of L. angustifolia EO collected during four consecutive years of growth was one of the aims of this work. The volatile profile evidenced the prevalence of linalool and linalool acetate even though they switched their positions according to age. Plants in their first year were characterized by a high amount of sesquiterpene compounds (22.1% of the identified fraction). This percentage decreased during plant growth, not representing more than 5.3% in the fourth year. It is interesting to note that both the third- and fourth-year plants showed a content of monoterpenes that exceeded 90% of the total identified constituents. The EO extracted from the oldest plants evidenced higher activity on the studied strains, with more sensitivity on the Gram-positive ones. Tuscan lavender EO, especially that obtained from the four-year-old plants, is of great interest for its potential industrial applications and constitutes an example for the valorization of marginal Tuscan land and good-quality production.

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Section: Introductionmentioning

confidence: 99%

Exploitation of Marginal Hilly Land in Tuscany through the Cultivation of Lavandula angustifolia Mill.: Characterization of Its Essential Oil and Antibacterial Activity

2022

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“…Indeed, investigations relevant to the quantitative and qualitative composition of Abies alba Mill bark extracts revealed an increase in the total polyphenol extract yield and a significant decrease in phenolics diversity from the base to the top of the tree [ 12 ]. The relationship between tree age and bark antioxidant status was also reported for Acacia confuse [ 13 ] and Cinnamomum loureirii [ 14 ]. Special investigations were devoted to the effect of bark storage duration on antioxidants’ stability [ 15 ].…”

Section: Introductionmentioning

confidence: 75%

Evaluation of Factors Affecting Tree and Shrub Bark’s Antioxidant Status

Golubkina

Плотникова

Lapchenko³

et al. 2022

Plants

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The importance of using the barks of trees and shrubs as powerful natural antioxidants suggests the necessity to evaluate the effect of different environmental factors on bark extracts’ quality. The determination of total antioxidant activity (AOA) and polyphenol content (TP) in the bark of 58 tree and shrub species from 7 regions differing in mean annual temperature, insolation, humidity, salinity level, and altitude was performed. The above stress factors positively affected bark AOA but did not have a statistically significant effect on TP. The bark of trees grown in the seashore proximity was characterized by significantly higher AOA than samples gathered in other areas, similarly to the trees grown at high altitude. The bark antioxidant status of 18 species was described for the first time. New sources of powerful antioxidants were represented by the ornamental shrubs Cornus sanguinea and Cornus alba, which showed the highest AOA (169–171 mg GAE g−1 d.w.). Among the typical halophytes, Calligonum and Tamarix had high AOA (172 and 85 mg GAE g−1 d.w.), while in the bark of tamarisk, an Se accumulator, an Se concentration of about 900 µg kg−1 d.w. was recorded. A significant positive correlation was found between leaves and bark AOA in the Karadag Nature Reserve’s deciduous trees (r = 0.898, p < 0.01). The relationship between bark AOA and TP was highly significant (r = 0.809; p < 0.001) for all samples except the mountainous ones. The results of the present research revealed new opportunities in successive bark utilization.

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“…Together with essential oil compounds, phenolic acids are regarded as efficient natural components in medicinal plants with protective effects against oxidative stress [ 29 ]. In addition, the dynamic accumulation of essential oils is correlated with the biosynthesis of phenolic acids during plant growth [ 30 , 31 ].…”

Section: Resultsmentioning

confidence: 99%

Profiles of Essential Oils and Correlations with Phenolic Acids and Primary Metabolites in Flower Buds of Magnolia heptapeta and Magnolia denudata var. purpurascens

Hyeon

Hyun

et al. 2021

Molecules

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Magnolia flower buds are a source of herbal medicines with various active compounds. In this study, differences in the distribution and abundance of major essential oils, phenolic acids, and primary metabolites between white flower buds of Magnolia heptapeta and violet flower buds of Magnolia denudata var. purpurascens were characterised. A multivariate analysis revealed clear separation between the white and violet flower buds with respect to primary and secondary metabolites closely related to metabolic systems. White flower buds contained large amounts of monoterpene hydrocarbons (MH), phenolic acids, aromatic amino acids, and monosaccharides, related to the production of isoprenes, as MH precursors, and the activity of MH synthase. However, concentrations of β-myrcene, a major MH compound, were higher in violet flower buds than in white flower buds, possibly due to higher threonine levels and low acidic conditions induced by comparatively low levels of some organic acids. Moreover, levels of stress-related metabolites, such as oxygenated monoterpenes, proline, and glutamic acid, were higher in violet flower buds than in white flower buds. Our results support the feasibility of metabolic profiling for the identification of phytochemical differences and improve our understanding of the correlated biological pathways for primary and secondary metabolites.

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The variation in essential oils composition, phenolic acids and flavonoids is correlated with changes in antioxidant activity during Cinnamomum loureirii bark growth

Cited by 23 publications

References 34 publications

Exploitation of Marginal Hilly Land in Tuscany through the Cultivation of Lavandula angustifolia Mill.: Characterization of Its Essential Oil and Antibacterial Activity

Exploitation of Marginal Hilly Land in Tuscany through the Cultivation of Lavandula angustifolia Mill.: Characterization of Its Essential Oil and Antibacterial Activity

Evaluation of Factors Affecting Tree and Shrub Bark’s Antioxidant Status

Profiles of Essential Oils and Correlations with Phenolic Acids and Primary Metabolites in Flower Buds of Magnolia heptapeta and Magnolia denudata var. purpurascens

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