Sesquiterpenes and monoterpenes from different varieties of guava leaf essential oils and their antioxidant potential

Kokilananthan, Shanthirasekaram; Bulugahapitiya, Vajira P.; Manawadu, Harshi; Gangabadage, Chinthaka Sanath

doi:10.1016/j.heliyon.2022.e12104

Cited by 6 publications

(5 citation statements)

References 37 publications

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“…Caryophyllene oxide in this study exhibited stronger larvicidal activities against the two Aedes species than previously reported results [80,85,86]. [44], Slk1 (Sri Lanka) [45], Egy3 (Egypt) [46], Ind2 (India) [47], Slk3 (Sri Lanka) [45], Egy6 (Egypt) [48], Bra5 (Brazil) [49], Pak2 (Pakistan) [50], Slk7 (Sri Lanka) [45], Slk6 (Sri Lanka) [45], Mau2 (Mauritius) [51], Pak3 (Pakistan) [50], Bra21 (Brazil) [52], Bra22 (Brazil) [52], Bra3 (Brazil) [53], Bra16 (Brazil) [54], Bra14 (Brazil) [55], Bra15 (Brazil) [55], Bra13 (Brazil) [55], Mau1 (Mauritius) [56], Slk2 (Sri Lanka) [45], M-Bra1→22 (Brazil) [57,58], L-Bra1→22 (Brazil) [57,58], Ind8 (India) [41], Ind7 (India) [41], Ind6 (India) [41], Ind9 (India) [41], Bra4 (Brazil) [59], Costa2 (Costa Rica) [60], Costa1 (Costa Rica) [60], Bra20 (Brazil) [52], USa11 (United States) [61], USa4 (United States) [62], USa1 (United States) [63], USa10 (United States) [61], USa9 (United States) [64], USa8 (United States) [62], USa3 (Unite...…”

Section: Larvicidal Activitiescontrasting

confidence: 47%

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Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Luu,

Nguyen,

Satyal

et al. 2023

Plants

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Diseases transmitted by mosquitoes and snails cause a large burden of disease in less developed countries, especially those with low-income levels. An approach to control vectors and intermediate hosts based on readily available essential oils, which are friendly to the environment and human health, may be an effective solution for disease control. Guava is a fruit tree grown on a large scale in many countries in the tropics, an area heavily affected by tropical diseases transmitted by mosquitoes and snails. Previous studies have reported that the extracted essential oils of guava cultivars have high yields, possess different chemotypes, and exhibit toxicity to different insect species. Therefore, this study was carried out with the aim of studying the chemical composition and pesticide activities of six cultivars of guava grown on a large scale in Vietnam. The essential oils were extracted by hydrodistillation using a Clevenger-type apparatus for 6 h. The components of the essential oils were determined using gas-chromatography–mass-spectrometry (GC-MS) analysis. Test methods for pesticide activities were performed in accordance with WHO guidelines and modifications. Essential oil samples from Vietnam fell into two composition-based clusters, one of (E)-β-caryophyllene and the other of limonene/(E)-β-caryophyllene. The essential oils PG03 and PG05 show promise as environmentally friendly pesticides when used to control Aedes mosquito larvae with values of 24 h LC50-aegypti of 0.96 and 0.40 µg/mL while 24 h LC50-albopictus of 0.50 and 0.42 µg/mL. These two essential oils showed selective toxicity against Aedes mosquito larvae and were safe against the non-target organism Anisops bouvieri. Other essential oils may be considered as molluscicides against Physa acuta (48 h LC50 of 4.10 to 5.00 µg/mL) and Indoplanorbis exustus (48 h LC50 of 3.85 to 7.71 µg/mL) and with less toxicity to A. bouvieri.

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Section: Larvicidal Activitiescontrasting

confidence: 47%

“…Figure 1.Dendrogram obtained from the agglomerative hierarchical cluster analysis of Psidium guajava essential oil compositions. Nep2 (Nepal)[44], Slk1 (Sri Lanka)[45], Egy3 (Egypt)[46], Ind2…”

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confidence: 99%

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Luu,

Nguyen,

Satyal

et al. 2023

Plants

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“…Genetic improvement could achieve superior performance in multiple aspects of new varieties. Introducing new genotypes enriches genetic diversity, providing breeders with a broader selection and allowing them to search for genotypes in the germplasm collections that suit their specific needs regarding traits and efficiency [ 71 , 72 ]. In summary, hybridizing introduced materials with local varieties combines genetic resources and ecological traits to enhance and optimize sugarcane varieties.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Photosynthetic Characteristics and Screening High Light-Efficiency Germplasm in Sugarcane

Wei,

Xu,

Khan

et al. 2024

Plants

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Sugarcane is a globally significant crop for sugar and energy production, and developing high light-efficiency sugarcane varieties is crucial for enhancing yield and quality. However, limited research is available on the screening of sugarcane germplasm with high photosynthetic efficiency, especially with different leaf positions. The present study, conducted in Guangxi, China, aimed to analyze the photosynthetic characteristics of 258 sugarcane varieties at different leaf positions over three consecutive years in field experiments. The results showed significant differences in photosynthetic characteristics among genotypes, years, and leaf positions. Heritability estimates for various photosynthetic parameters ranged from 0.76 to 0.88. Principal component analysis revealed that the first three principal components accounted for over 99% of the cumulative variance. The first component represented photosynthetic efficiency and light utilization, the second focused on electron transfer and reaction center status, and the third was associated with chlorophyll content. Cluster and discriminant analysis classified sugarcane genotypes into three categories: high photosynthetic efficiency (HPE) with 86 genotypes, medium photosynthetic efficiency (MPE) with 60 genotypes, and low photosynthetic efficiency (LPE) with 112 genotypes. Multi-year trials confirmed that HPE sugarcane genotypes had higher single-stem weight and sucrose content. This study provides valuable insights into the photosynthetic physiological characteristics of different sugarcane varieties, which can contribute to further research regarding high yields and sugar breeding.

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“…The collected EO was dehydrated, and the moisture-free oil was kept in a sealed, amber-colored vial in the refrigerator at 4ºC until it was needed to perform the GC-MS analysis. The yield percentage was calculated on a weight basis (Kokilananthan et al, 2022b;Weli et al, 2019).…”

Section: Isolation Of Essential Oilmentioning

confidence: 99%

Chemical profile and antioxidants property of Eryngium foetidum L. leaves – use of HPLC methods to optimize extracting solvents to be used in functional food development

Kokilananthan¹,

Bulugahapitiya²,

Manawadu³

et al. 2023

Acta Sci Pol Technol Aliment

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Background. Eryngium foetidum L. grows in the wet zone of Sri Lanka. Despite the fact that this plant is widely used for healthcare purposes and as a culinary spice in tropical regions, limited scientific research has been available. This study aimed to investigate phytoconstituents, essential oil (EO), antioxidative potential (AP), and proximate composition, as well as find a suitable extracting solvent to extract potential constituents using the HPLC-PDA application in order to transform leaves into functional foods as an extended study. Materials and methods. The chemical constituents of the EO in the leaves were identified using the GC-MS analysis after extraction via hydro-distillation. Phytoconstituents of leaves were extracted into five different solvents via maceration with methanol, ethanol, water, acetone, and acetonitrile. Analytical HPLC was applied to compare the phytochemical profile under each solvent. Chemical analysis was used to reveal phytoconstituents in methanolic extract using standard methods. DPPH and FRAP assays were employed to determine AP of EO and the methanolic extract. Results. About 43 compounds were identified in the EO, showing 2-dodecenal (13.7%) and 2,4,5-trimethylbenzaldehyde (13.1%) as major ones. Cyclopropane, nonyl-, butylated hydroxytoluene, octadecane, hexacosane, and tetracosane were found in the EO of E. foetidum leaves for the first time. The HPLC chemical profiling revealed that methanol is a better solvent for extracting optimum phytochemicals compared to other solvents. The AP of the EO has been proven to be 118.16 ±1.32 μL Trolox Eq/L for FRAP, whereas the value of 95.74 ±3.47 mg Trolox Eq/g was shown for methanolic extract of leaves. The saponin level was greater (387.40 ±0.41 mg SE/g) in the solvent extract out of all other phytochemicals, and the leaves showed acceptable proximate compositions. Conclusion. To conclude, the solvent used has an influence on extractable phytochemicals and the technique of HPLC showed a promising method for phytochemical profiling. This is the first detailed study of EO and solvent extract of leaves of E. foetidum, and the finding of this study would be helpful pharmacological applications and be beneficial for functional food development.

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Sesquiterpenes and monoterpenes from different varieties of guava leaf essential oils and their antioxidant potential

Cited by 6 publications

References 37 publications

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Analysis of Photosynthetic Characteristics and Screening High Light-Efficiency Germplasm in Sugarcane

Chemical profile and antioxidants property of Eryngium foetidum L. leaves – use of HPLC methods to optimize extracting solvents to be used in functional food development

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Sesquiterpenes and monoterpenes from different varieties of guava leaf essential oils and their antioxidant potential

Cited by 6 publications

References 37 publications

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Chemical Composition, Larvicidal and Molluscicidal Activity of Essential Oils of Six Guava Cultivars Grown in Vietnam

Analysis of Photosynthetic Characteristics and Screening High Light-Efficiency Germplasm in Sugarcane

Chemical profile and antioxidants property of Eryngium foetidum L. leaves &ndash; use of HPLC methods to optimize extracting solvents to be used in functional food development

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Product

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Chemical profile and antioxidants property of Eryngium foetidum L. leaves – use of HPLC methods to optimize extracting solvents to be used in functional food development