Chemical Constituents and Antibacterial Activity of Essential Oils from Curcuma thorelii

Van, Hong Thien; Luu, Thao Nguyen; Pham, Tan‐Viet; Tran, Minh Dang; Tran, Thi Kim Ngan; Le, Van Son; Nguyen, Quoc Hung; Le, Thanh Tho; Nguyen-Phi, Nga

doi:10.1007/s10600-023-03947-3

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…A novel trend regarding the sustainable, "green" approach in conservation of cultural heritage involves ecological treatments based on natural products which have already proven anticorrosive and antimicrobial efficiency in other fields. A large variety of essential oils [24], such as oils from oregano [25], thyme [26], cinnamon, pomegranate [27], curcuma [28], sage [29], and clove [30] were intensively studied. Many of them are used as commercial products in the form of antimicrobial pharmaceuticals or biocides in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Novel Microemulsions with Essential Oils for Environmentally Friendly Cleaning of Copper Cultural Heritage Artifacts

Ioan,

Anghel,

Gifu

et al. 2023

Nanomaterials

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Cleaning represents an important and challenging operation in the conservation of cultural heritage, and at present, a key issue consists in the development of more sustainable, “green” materials and methods to perform it. In the present work, a novel xylene-in-water microemulsion based on nonionic surfactants with low toxicity was obtained, designed as low-impact cleaning agent for metallic historic objects. Phase diagram of the mixtures containing polyoxyethylene-polyoxypropilene triblock copolymer Pluronic P84 and D-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS) as surfactants, water, ethanol and xylene was studied, and a microemulsion with low surfactant content was selected as suitable cleaning nanosystem. Essential oils (EOs) from thyme and cinnamon leaf were added to the selected microemulsion in order to include other beneficial properties such as anticorrosive and antifungal protection. The microemulsions with or without EOs were characterized by size, size distribution and zeta potential. The cleaning efficacy of the tested microemulsions was assessed based on their ability to remove two types of artificial dirt by using X-ray energy dispersion spectrometry (EDX), scanning electron microscopy (SEM), contact angle measurements and color analysis. Microemulsions exhibit high capacity to remove artificial dirt from model copper coupons in spite of very low content of the organic solvent. Both thyme and cinnamon oil loading microemulsions prove to significantly reduce the corrosion rate of treated metallic plates compared to those of bare copper. The antifungal activity of the novel type of microemulsion was evaluated against Aspergillus niger, reported as main treat in biocorrosion of historic copper artifacts. Application of microemulsion with small amounts of EOs on Cu plates inhibits the growth of fungi, providing a good fungicidal effect.

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Section: Introductionmentioning

confidence: 99%

Novel Microemulsions with Essential Oils for Environmentally Friendly Cleaning of Copper Cultural Heritage Artifacts

Ioan,

Anghel,

Gifu

et al. 2023

Nanomaterials

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“…& H.Đ.Trần was collected from Quang Nam province, Vietnam in 2017 (12). To date, only one study on chemical compositions and antibacterial effects of C. thorelii essential oils has been conducted (13). Therefore, this study was the first to explore the information about chemical component and biological property of the acetone extracts from C. thorelii and C. cotuana, thereby enhancing their potential especially in medicinal applications.…”

Section: Curcuma Thorelii Gagnep Was First Discovered Inmentioning

confidence: 99%

Chemical profiles and antibacterial activity of acetone extract of two Curcuma species from Vietnam

Van

Tran²,

Tran³

et al. 2023

Plant Sci. Today

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Curcuma thorelii Gagnep. and Curcuma cotuana Luu, Škorni?k. & H.?.Tr?n are the rare species only found in Southeast Asia. The present study was the first to explore the chemical compositions and antibacterial effects of the whole plant acetone extracts of these 2 species. Altogether 41 and 31 compounds have been identified in C. thorelii and C. cotuana extracts by gas chromatography/mass spectrometry. Accordingly, the C. thorelii extract contained (E)-labda-8(17),12-diene-15,16-dial (33.37%), vitamin E (12.33%), phytol (9.83%) as the major compounds while C. cotuana extract contained predominantly (E)-labda-8(17),12-diene-15,16-dial (14.58%), n-hexadecanoic acid (10.96%), 3,7,11,15-tetramethylhexadec-2-en-1-yl acetate (8.13%), ?-sitosterol (7.97%). In addition, results from disc diffusion assay have shown that C. thorelii acetone extract had inhibitory effects on 5 out of 10 pathogenic bacterial strains such as Bacillus cereus (ATCC 11778), Listeria monocytogenes (ATCC 19111), Staphylococcus aureus (ATCC 25923), S. aureus (ATCC 29213) and S. saprophyticus (BAA750) while C. cotuana acetone extract was found to be effective only against B. cereus. The obtained results showed that the acetone extracts of C. thorelii and C. cotuana possessed several valuable bioactive compounds as well as promising antibacterial activity, which place a good foundation for future pharmaceutical product development.

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Chemical Components and Antimicrobial Activity of Essential Oil from Curcuma vitellina

Nguyen-Phi,

Dinh,

Dinh

et al. 2024

Chem Nat Compd

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Chemical Constituents and Antibacterial Activity of Essential Oils from Curcuma thorelii

Cited by 3 publications

References 21 publications

Novel Microemulsions with Essential Oils for Environmentally Friendly Cleaning of Copper Cultural Heritage Artifacts

Novel Microemulsions with Essential Oils for Environmentally Friendly Cleaning of Copper Cultural Heritage Artifacts

Chemical profiles and antibacterial activity of acetone extract of two Curcuma species from Vietnam

Chemical Components and Antimicrobial Activity of Essential Oil from Curcuma vitellina

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