Exploring natural essential oil components and antibacterial activity of solvent extracts from twelve Perilla frutescens L. Genotypes

Ahmed, Hiwa M.; Al-Zubaidy, Adel Mohan Aday

doi:10.1016/j.arabjc.2020.08.016

Cited by 30 publications

(17 citation statements)

References 29 publications

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“…In addition, Tian et al [40] collected Perilla frutescens samples from 11 different areas in China and found 119 different components present in a highly variable manner, with Limonene and 2-Hexanoylfuran (the main volatile compounds for the two varieties of Perilla frutescens analyzed in this work) found in only five and one of the 11 sampling sites, respectively. Similar data were recently collected by Ahmed and Al-Zubaidy [41] who individuated 63 components after GC/MS of essential oils extracted from 12 Perilla frutescens accessions.…”

Section: Discussionsupporting

confidence: 73%

Volatile Compounds and Total Phenolic Content of Perilla frutescens at Microgreens and Mature Stages

et al. 2022

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Microgreens are considered products of high biological value because they contain natural and beneficial metabolites and antioxidants in high amounts; also, consumers appreciate them very much for their aromas. In this work, we focused our attention on the volatile organic compounds (VOCs) emitted from whole fresh leaves of two Chinese basil varieties (Perilla frutescens var. frutescens and var. crispa) at the microgreens stage; to show that the emission is microgreens specific we tested whether this capacity remains during subsequent growth of the plants. We found differences between the VOCs produced by the leaves of the two varieties at the microgreens stage and significantly reduced emission after development (additional four weeks of growth) particularly for the green variety (var. frutescens). The main volatiles emitted by whole leaves were D-Limonene for the red variety (crispa) and 2-Hexanoylfuran for the green one. In addition, the total phenolic content (TPC) and antioxidant power increase in adult leaves. These results clearly indicate that the particular smell of microgreens Perilla leaves depends on the specific variety and is not related to the amount of total phenols or antioxidant capacity of the leaves.

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Section: Discussionsupporting

confidence: 73%

Volatile Compounds and Total Phenolic Content of Perilla frutescens at Microgreens and Mature Stages

et al. 2022

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“…After being soaked in 10 µL of EOA, 6 mm diameter disks were placed on the surface of petri dishes. [ 15 , 22 , 23 ]. Next, the inoculated Petri dishes were incubated in the dark at 30 °C and 37 °C for the fungal and bacterial species, respectively.…”

Section: Methodsmentioning

confidence: 99%

Antioxidant and Antimicrobial Activities of Chemically-Characterized Essential Oil from Artemisia aragonensis Lam. against Drug-Resistant Microbes

et al. 2022

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This study investigated the chemical composition, antioxidant and antimicrobial activity of essential oil extracted from Artemisia aragonensis Lam. (EOA). Hydrodistillation was employed to extract EOA. Gas chromatography with flame ionization detection (GC-FID) and gas chromatography-mass spectrometry analyses (GC-MS) were used to determine the phytochemical composition of EOA. Antioxidant potential was examined in vitro by use of three tests: 2.2-diphenyl-1-picrilhidrazil (DPPH), ferric reducing activity power (FRAP) and total antioxidant capacity assay (TAC). Agar diffusion and microdilution bioassays were used to assess antimicrobial activity. GC/MS and GC-FID detected 34 constituents in the studied EOA. The major component was Camphor (24.97%) followed by Borneol (13.20%), 1,8 Cineol (10.88%), and Artemisia alcohol (10.20%). EOA exhibited significant antioxidant activity as measured by DPPH and FRAP assays, with IC50 and EC50 values of 0.034 ± 0.004 and 0.118 ± 0.008 mg/mL, respectively. EOA exhibited total antioxidant capacity of 7.299 ± 1.774 mg EAA/g. EOA exhibited potent antibacterial activity as judged by the low minimum inhibitory concentration (MIC) values against selected clinically-important pathogenic bacteria. MIC values of 6.568 ± 1.033, 5.971 ± 1.033, 7.164 ± 0.0 and 5.375 ± 0.0 μg/mL were observed against S. aureus, B. subtills, E. coli 97 and E. coli 57, respectively. EOA displayed significant antifungal activity against four strains of fungi: F. oxysporum, C. albicans, A. flavus and A. niger with values of 21.50 ± 0.43, 5.31 ± 0.10, 21.50 ± 0.46 and 5.30 ± 0.036 μg/mL, respectively. The results of the current study highlight the importance of EOA as an alternative source of natural antioxidant and antibacterial drugs to combat antibiotic-resistant microbes and free radicals implicated in the inflammatory responses accompanying microbial infection.

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“…Meanwhile, plant extracts with antibacterial ability are promising and safe sources for applications as additives for food production [5][6][7] or aquaculture [8][9][10]. Therefore, many studies have focused on extracting and evaluating antibacterial activities of herb, vegetable, and fruit extracts, such as clove [11], peppermint [12], perilla (Perilla frutescens L.) [13], fish mint [14], pineapple [15], and various seed extracts [16]. It is shown that plant extracts have broad-spectrum antibacterial activity, being effective against both Gram-positive and Gram-negative bacteria, fungi, and parasites [17,18].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Phytochemical Contents, Antioxidant and Antibacterial Activities of Various Solvent Extracts Obtained from ‘Maluma’ Avocado Pulp Powder

Nguyen

et al. 2021

Molecules

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Although avocado is a superfood rich in phytochemicals with high antioxidant activities, studies on the antibacterial properties of its pulp are limited, except for seed and peel portions. In this study, three types of solvent (acetone, methanol, and diethyl ether) were used to obtain the extracts from “Maluma” avocado pulp powder prepared by infrared drying. The extracts were analyzed for total polyphenols, phytopigments (total chlorophylls and carotenoids), antioxidant activities (ferric-reducing antioxidant power (FRAP), 2,2-Diphenyl-1-picrylhydrazyl (DPPH), and 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) assays), and antibacterial activities against seven pathogens (Shigella sonnei ATCC 9290, Escherichia coli ATCC 8739, Salmonella typhi ATCC 6539, Vibrio parahaemolyticus ATCC 17802, Proteus mirabilis ATCC 25933, Staphylococcus aureus ATCC 6538, and Bacillus cereus ATCC 11778). The results showed that the acetone solvent could extract the highest polyphenols and chlorophylls with the highest antioxidant activity in terms of ABTS and DPPH assays. In contrast, diethyl ether exhibited the most significant content of carotenoids and FRAP values. However, the methanol extract was the best solvent, exerting the strongest antibacterial and meaningful antioxidant activities. For the bacterial activities, Gram-positive pathogens (Bacillus cereus and Staphylococcus aureus) were inhibited more efficiently by avocado extracts than Gram-negative bacteria. Therefore, the extracts from avocado powder showed great potential for applications in food processing and preservation, pharmaceuticals, and cosmetics.

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Exploring natural essential oil components and antibacterial activity of solvent extracts from twelve Perilla frutescens L. Genotypes

Cited by 30 publications

References 29 publications

Volatile Compounds and Total Phenolic Content of Perilla frutescens at Microgreens and Mature Stages

Volatile Compounds and Total Phenolic Content of Perilla frutescens at Microgreens and Mature Stages

Antioxidant and Antimicrobial Activities of Chemically-Characterized Essential Oil from Artemisia aragonensis Lam. against Drug-Resistant Microbes

Comparison of Phytochemical Contents, Antioxidant and Antibacterial Activities of Various Solvent Extracts Obtained from ‘Maluma’ Avocado Pulp Powder

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