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Screening of Antioxidant and Antimicrobial Activity of Micromeria fruticosa serpyllifolia Volatile Oils: A Comparative Study of Plants Collected from Different Regions of West Bank, Palestine.

ABSTRACT: Background:The investigation of volatile oils used in traditional medicine is vital to enhance the quality of healthcare. This study is aimed at screening the antioxidant and antimicrobial properties of Micromeria fruticosa serpyllifolia volatile oils from three different regions in Palestine (north, middle, and south). Methods:Volatile oils of three samples of M. fruticosa serpyllifolia were extracted using the microwave-ultrasonic apparatus. The antioxidant activity of the volatile oils was assessed by inhibition of DPPH free radical. The antimicrobial activity was examined using the broth microdilution method. Assessment of antifungal activity was achieved using the agar dilution method. Results:Screening the biological activity of plant extracts revealed that the sample from Ramallah (middle region) possessed the most potent antioxidant activity with an IC50 value of 0.45??g/mL. The three samples exhibited broad antimicrobial activity and showed potential antifungal activity. The sample from the southern region showed the highest potency against Shigella sonnei with the lowest reported MIC; the sample from the northern region demonstrated the least potency against clinical isolate of Staphylococcus aureus and "methicillin"-resistant Staphylococcus aureus. Conclusions:The study showed that Micromeria fruticosa serpyllifolia volatile oil samples from different regions in Palestine possess different potential antioxidant and antimicrobial activities that were in line with traditional uses of the plant extracts.

SUBMITTER: Salameh N

PROVIDER: S-EPMC7378623 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Screening of Antioxidant and Antimicrobial Activity of <i>Micromeria fruticosa serpyllifolia</i> Volatile Oils: A Comparative Study of Plants Collected from Different Regions of West Bank, Palestine.

Salameh Nihaya N Shraim Naser N Jaradat Nidal N El Masri Motasem M Adwan Lina L K'aibni Shadi S Alkowni Raed R Radwan Asma A AbuAlhasan Murad M

BioMed research international 20200715

<h4>Background</h4>The investigation of volatile oils used in traditional medicine is vital to enhance the quality of healthcare. This study is aimed at screening the antioxidant and antimicrobial properties of <i>Micromeria fruticosa serpyllifolia</i> volatile oils from three different regions in Palestine (north, middle, and south).<h4>Methods</h4>Volatile oils of three samples of <i>M. fruticosa serpyllifolia</i> were extracted using the microwave-ultrasonic apparatus. The antioxidant activit ...[more]

PMID: 32733942

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Project description:IntroductionVolatile oils (VOs) have been commonly used in cosmetics and food as fragrances, flavoring, and preservative agents or in alternative medicine for their therapeutic effects. This necessitates investigating those plants and their VOs. This study was conducted to investigate the chemical compositions of the VOs of Micromeria fruticosa serpyllifolia growing widely in three regions in Palestine (i.e., Hebron, Ramallah, and Nablus districts representing south, middle, and north of West Bank). Afterwards, VOs were subjected to in vitro screening and their enzymatic properties were compared.MethodsThe analysis of chemical components of VOs was performed by gas chromatography coupled with mass spectrometry (GC-MS). The antilipase activity was evaluated using porcine pancreatic lipase and p-nitrophenyl butyrate. The antiamylase activity was assessed using porcine pancreatic ?-amylase, starch, and 3,5-dinitrosalicylic.ResultsPlant extracts yield range was 0.67 to 0.99 w/w%. GC-MS analysis showed the high percentages of oxygenated components in the range of 86.1-89.88% and nonoxygenated components in the range of 4.38-4.71%. Seven components were observed, pulegone was the most abundant component in the three samples in the range of 74.43-86.04%, and isomenthone was the second most abundant component with the range of 3.16-14.41%. The sample collected from Nablus showed the most potent antilipase and antiamylase activity with IC50 values of 39.81 ?g/mL and 3.31 ?g/mL, respectively.ConclusionsThe study showed that Micromeria fruticosa serpyllifolia volatile oils samples from different regions in Palestine contained different proportions of phytochemicals which provided different potential biological activities such as antiobesity and antidiabetes activities that were in line with traditional uses of the plant extracts. The plant extracts showed higher antilipase and antiamylase potency than that of the relative references and there were significant differences in these activities compared to each other.

Project description:Mistreatment of women during childbirth is a clear breach of women's rights during childbirth. This study aimed to determine the prevalence and associated factors of mistreatment of women during childbirth in the north of West Bank, Palestine. A cross-sectional study was conducted among 269 women within the first 16 weeks of their last vaginal childbirth to understand the childbirth events by using proportionate stratified random sampling. An Arabic valid questionnaire was used as a study instrument. Simple and multiple logistic regression analyses were conducted to determine the factors associated with each type of mistreatment. The mean age of the women was 26.5 (SD 4.77) years. The overall prevalence of mistreatment was 97.8%. There were six types of mistreatment. Nine factors were significantly associated with the occurrence of one or more types of mistreatment. Delivery at a public childbirth facility was associated with all of the six types (aAdjOR: 2.17-16.77; p-values < 0.001-0.013). Women who lived in villages (aAdjOR 2.33; p-value = 0.047), had low education (aAdjOR 5.09; p-value = 0.004), underwent induction of labour (aAdjOR 3.03; p-value = 0.001), had a long duration of labour (aAdjOR 1.10; p-value = 0.011), did not receive pain killers (aAdjOR: 2.18-3.63; p-values = 0.010-0.020), or had an episiotomy or tear (aAdjOR 5.98; p-value < 0.001) were more likely to experience one or more types of mistreatment. With every one-hour increase in the duration of labor, women were 1.099 times more likely to experience a failure to meet the professional standard of care. Women were less likely to experience mistreatment with increasing age. Women with increasing age (aAdjOR: 0.91-0.92; p-values = 0.003-0.014) and parity (aAdjOR 0.72; p-value = 0.010) were less likely to experience mistreatment. Awareness of women's fundamental rights during childbirth, making the childbirth process as normal as possible, and improving the childbirth facilities' conditions, policies, practices and working environment may decrease mistreatment occurrence.

Project description:BACKGROUND: A comparative food ethnobotanical study was carried out in fifteen local communities distributed in five districts in the Palestinian Authority, PA (northern West Bank), six of which were located in Nablus, two in Jenin, two in Salfit, three in Qalqilia, and two in Tulkarm. These are among the areas in the PA whose rural inhabitants primarily subsisted on agriculture and therefore still preserve the traditional knowledge on wild edible plants. METHODS: Data on the use of wild edible plants were collected for one-year period, through informed consent semi-structured interviews with 190 local informants. A semi-quantitative approach was used to document use diversity, and relative importance of each species. RESULTS AND DISCUSSION: The study recorded 100 wild edible plant species, seventy six of which were mentioned by three informants and above and were distributed across 70 genera and 26 families. The most significant species include Majorana syriaca, Foeniculum vulgare, Malvasylvestris, Salvia fruticosa, Cyclamen persicum, Micromeria fruticosa, Arum palaestinum, Trigonella foenum-graecum, Gundelia tournefortii, and Matricaria aurea. All the ten species with the highest mean cultural importance values (mCI), were cited in all five areas. Moreover, most were important in every region. A common cultural background may explain these similarities. One taxon (Majoranasyriaca) in particular was found to be among the most quoted species in almost all areas surveyed. CI values, as a measure of traditional botanical knowledge, for edible species in relatively remote and isolated areas (Qalqilia, and Salfit) were generally higher than for the same species in other areas. This can be attributed to the fact that local knowledge of wild edible plants and plant gathering are more spread in remote or isolated areas. CONCLUSION: Gathering, processing and consuming wild edible plants are still practiced in all the studied Palestinian areas. About 26 % (26/100) of the recorded wild botanicals including the most quoted and with highest mCI values, are currently gathered and utilized in all the areas, demonstrating that there are ethnobotanical contact points among the various Palestinian regions. The habit of using wild edible plants is still alive in the PA, but is disappearing. Therefore, the recording, preserving, and infusing of this knowledge to future generations is pressing and fundamental.

Project description:BackgroundAloysia citriodora Palau (AC) is commonly known as Lemon Verbena and has been utilized as a medicinal tea in folkloric medicine for the treatment of abdominal spasm, anxiety, and fever. The present investigation aimed to identify the chemical ingredients of AC essential oil (EO) collected from two different locations in Palestine and to assess their antioxidant, antimicrobial, cytotoxic, and cyclooxygenase (COX) inhibitory effects.MethodsGas chromatography/mass spectroscopy (GC/MS) technique was used to identify the chemical components of the hydro-distilled EO from both regions, while DPPH, MTS, and COX assays were utilized to estimate the antioxidant, cytotoxic, and COX inhibitory activities of the EOs, respectively. Moreover, a broth microdilution assay was used to assess antimicrobial potentials against seven microbial strains.ResultsThe GC/MS technique revealed the presence of 17 compounds from the AC collected from the Umm al-Fahm region and 13 compounds from the sample from the Baqa al-Gharbiyye region, while α-citral was the major component of both EOs, representing 47.62 and 43.46%, respectively. The Baqa al-Gharbiyye AC EO exerted more potent antioxidant activity than the Umm al-Fahm EO, with IC50 values of 11.74 ± 0.18 and 35.48 ± 0.14 μg/mL, respectively, while the positive control Trolox had antioxidant IC50 values of 2.45 ± 0.01 μg/mL. Interestingly, both EOs inhibited more potential activity against Methicillin-Resistant Staphylococcus aureus (MRSA) and Proteus vulgaris than Ciprofloxacin and Ampicillin antibiotics and also showed more potent antifungal activity against Candida albicans than Fluconazole. Moreover, the Baqa al-Gharbiyye AC EO had a more potent cytotoxic effect than the Umm al-Fahm EO, with IC50 values of 84.5 ± 0.24 and 33.31 ± 0.01 μg/mL, respectively, compared with Doxorubicin, which had an IC50 dose of 22.01 ± 1.4 μg/mL. The EOs from Baqa al-Gharbiyye showed potent activity against both COX-1 and COX-2 enzymes, with IC50 of 52.93 ± 0.13 and 89.31 ± 0.21 μg/mL, respectively, while the EOs from the Umm al-Fahm region showed weaker activity against these enzymes, with IC50 of 349.99 ± 0.33 and 1326.37 ± 1.13 μg/mL, respectively.ConclusionBoth characterized EOs have a huge variety of chemical components. The Baqa al-Gharbiyye AC EO has more potent antioxidant and cytotoxic activities than the Umm al-Fahm EO, but both have potential antimicrobial activity against MRSA, P. vulgaris, and C. albicans. These results suggest the use of AC EOs as promising sources of active ingredients in the food, cosmetic, and pharmaceutical industries.

Dataset Information

Screening of Antioxidant and Antimicrobial Activity of Micromeria fruticosa serpyllifolia Volatile Oils: A Comparative Study of Plants Collected from Different Regions of West Bank, Palestine.

Publications

Screening of Antioxidant and Antimicrobial Activity of <i>Micromeria fruticosa serpyllifolia</i> Volatile Oils: A Comparative Study of Plants Collected from Different Regions of West Bank, Palestine.

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