Chemical Composition and Geographic Variation of Cold Pressed Balanites aegyptiaca Kernel Oil

With the increasing impacts of climate change, establishing more sustainable and robust plants such as desert dates (Balanites aegyptiaca) seems to be necessary. Known for its resilience in arid conditions, this tree has the potential to become a more important food source, particularly for its potential to yield edible oil. This study characterized Balanites kernel oil (BKO) as a promising oil source in arid regions, studying the influence of geographical origin and environmental factors. Moroccan and Sudanese BKO samples were analyzed and compared with Mauritanian BKO. In the fatty acid profile, unsaturated fatty acids constituted over 70% of the BKO profile, with a predominance of linoleic acid (Li), oleic acid (Ol), palmitic acid (Pa), and stearic acid (St). Consequently, the predominant triacylglycerols were PaLiLi, PaLiOl, LiLiOl, OlLiOl, and StLiOl. α-Tocopherol dominated the tocochromanol composition (324 to 607 mg/kg), followed by γ-tocopherol (120 to 226 mg/kg), constituting 90% of the total tocochromanols. The total phytosterol content in BKO ranged from 871 to 2218 mg/kg oil, with β-sitosterol dominating (58% to 74%). Principal Component Analysis revealed that the geographical origin significantly influences BKO composition, emphasizing environmental factors, particularly water deficit and/or temperatures. Notably, Moroccan BKO collected from an area characterized by high aridity and relatively low winter temperatures, showcased a unique profile in fatty acid, phytosterols, and tocochromanols. The valorization of BKO presents an opportunity for local agricultural development in arid regions and a role model for plant development and agricultural practices in other parts of the world.

Metabolic and elemental profiling as potential discriminating features among the black mahlab seeds (Monechma ciliatum) grown in three different regions

INTRODUCTION

Black mahlab (Monechma ciliatum) seed is a rich source of metabolites and minerals and is usually believed to have a similar composition between different areas of cultivation. Until now, no studies have assessed changes in black mahlab seeds (BMSs) to determine those constituents that help to discriminate them according to geographical origin.

OBJECTIVES

The present study attempted to compare the metabolomics and elemental profiles of BMSs of different geographical origins and identified the potential markers using ultrahigh-performance liquid chromatography quadrupole Orbitrap tandem mass spectrometry (UHPLC-Q-Orbitrap-MS2 ), and inductively coupled plasma mass spectrometry (ICP-MS) techniques and established the chemometric model to identify the potential markers and discriminate them according to cultivation sites.

MATERIAL AND METHODS

In this work, data from metabolites analysis by UHPLC-Q-Orbitrap-MS2 and multi-elemental data obtained from ICP-MS were combined with chemometrics for tracing the geographical origin of BMSs. Principal component analysis (PCA) was used to evaluate the overall grouping of samples. In contrast, partial least squares-discriminant analysis (PLS-DA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were employed for authentication.

RESULTS

PLS-DA and OPLS-DA models were fully validated (R2 Y and Q2 values > 0.5). Variable importance of various projections was applied to obtain valuable data about differential elements (seven markers were identified) and metabolites (23 markers were identified) with high discrimination potential. The outcomes presented in this study serve as an appropriate framework for developing novel discrimination approaches in food origin screening.

Selected potential pharmaceutical and medical benefits of phenolic compounds: Recent advances

Objective: Phenolic compounds are essential for defense reactions, including antioxidant, anti-inflammatory, antidiabetic, anti-proliferative activity, and anti-aging activity. Coming from the class of phytomedicine, they are widespread in the plant kingdom and are commonly taken as substances in the daily diet. They are mainly found in various types of edible plants, especially fruits, vegetables, and tea. Phenolic compounds have been investigated for their effects on human health due to their beneficial effects against oxidative stress activities. The proposed main mechanism of this protective effect against harmful oxidation processes is related to the radical scavenging activity of the phenolic compounds due to reactive oxygen and nitrogen substances. The review uses up-to-date data via manual screening of the titles and abstracts of retrieved articles using string pharmaceutical and medical benefits of phenolic compounds as keywords to obtain publications from the electronic databases PubMed and Google Scholar using the publish or perish tool. However, priority has been given to the scientific papers, reports, and literature issued within the past 5 years.Several types of research have been conducted on phenolic compounds due to their potential pharmacological activities. Dietary intake of phenolic compounds is also associated with reducing the risk of cardiovascular disease, mainly caused by oxidative stress and behavioral risk factors such as alcohol abuse, tobacco use, a high-fat diet, and a sedentary lifestyle. They are effective in fighting against various types of diseases.Conclusion: This review article highlights the currently available information and knowledge on the potential pharmaceutical and health benefits of phenolic compounds.Keywords: Phenolic compounds, flavanoids, Heart disease, Antioxidant, Cancer, Diabetes mellitus

Classification of Black Mahlab seeds (Monechma ciliatum) using GC-MS and FT-NIR and simultaneous prediction of their major volatile compounds using chemometrics

The identification of geographical origin is an important factor in assessing the quality of aromatic and medicinal seeds such as Black Mahlab (Monechma ciliatum). However, at present, there are no studies concerning Black Mahlab Seeds (BMSs). To identify the geographical origin of BMSs, we have used gas chromatography-mass spectrometry (GC-MS) and Fourier transform infrared spectroscopy (FT-NIR) combined with chemometrics. Chemometrics analysis showed that FT-NIR and GC-MS can be used to discriminate the geographical origin of BMSs. FT-NIR coupled with the partial least squares regression (PLSR) was applied to develop the calibration models. The calibration models had a coefficient of determination (R_c²) of 0.82 for coumarin and 0.81 for methyl salicylate. The prediction model (R_p²) values ranged from 0.83 for coumarin to 0.77 for methyl salicylate. Overall, the chemometrics presented correct classification, and PLSR accurately predicted the volatiles, with an RMSEP range of 0.9 to 0.16 for the two volatiles targeted.

Efficacy and Safety of Gum Arabic on Renal Failure Patients: Systematic Review and Meta-analysis

Background: Chronic Renal Failure (CRF) is a long-term disease caused by progressive kidney dysfunction due to many reasons leading to a significant rise in serum levels of creatinine and urea reaching the advanced stage where the patient goes for frequent hemodialysis. This study aims to discuss the evaluation of the efficacy of gum Arabic (GA) supplementation on the serum level of creatinine, urea, sodium, and potassium in CRF patients. Methods: Four databases PubMed, Web of Science, Scopus, and the Cochrane Library were searched for clinical trials assessment of gum Arabic intervention in CRF patients. Animal trials and experimental protocols were excluded. Screening of data and data extraction were done by two reviewers independently of each other. Meta-analysis was conducted on the selected studies using RevMan and the resulting description was summarized through the Forest plot tool on the efficacy of GA on 4 variables, creatinine, urea, sodium, and potassium in CRF patients. Results: From 574 studies searched, only 4 studies were included in this systemic review and meta-analysis. Although one of the studies had proved the objectives of the review but it was removed from the meta-analysis due to the heterogeneity caused by its inclusion. Conclusion: The few studies included in the current review revealed significant efficacy of GA treatment on the serum level of creatinine, urea, and sodium, but not potassium.

Gelatin and Chitosan as Meat By-Products and Their Recent Applications

Meat by-products such as bones, skin, horns, hooves, feet, skull, etc., are produced from slaughtered mammals. Innovative solutions are very important to achieving sustainability and obtaining the added value of meat by-products with the least impact on the environment. Gelatin, which is obtained from products high in collagen, such as dried skin and bones, is used in food processing, and pharmaceuticals. Chitosan is derived from chitin and is well recognized as an edible polymer. It is a natural product that is non-toxic and environmentally friendly. Recently, chitosan has attracted researchers' interests due to its biological activities, including antimicrobial, antitumor, and antioxidant properties. In this review, article, we highlighted the recent available information on the application of gelatin and chitosan as antioxidants, antimicrobials, food edible coating, enzyme immobilization, biologically active compound encapsulation, water treatment, and cancer diagnosis.

Misconceptions and associated factors of COVID-19 infection among internally displaced persons in Sudan

Coronavirus disease 2019 (COVID-19) is a global public health threat that has spread rapidly and caused morbidity and mortality worldwide. Reducing the myths about infectious diseases is vital for controlling transmission. This study explored the level of misconceptions and associated factors of COVID-19 among internally displaced persons in Sudan. This study is a cross-sectional, descriptive design and community-based study. We collected the data using a self-administered questionnaire via the convenience sampling technique among internally displaced persons in the camps of Zalingei town in the central Darfur region of Sudan. The total mean score of the respondents’ misconception was 3.1725 (SD=0.59) with 63.2%, indicating moderate misunderstanding of COVID- 19. Multiple linear regression revealed the independent variables together had a significant impact on a misconception, F(14,116)=2.429, p<0.005. The regression model explains 22.7% of the variance in misunderstanding. Analysis of the influence of single factors on the dependent variable showed that people aged 31–40 years had significantly higher levels of misconception, 0.381 (t=2.116, p<0.037), than those aged over 60 years, and university graduates had considerably lower levels of misunderstanding, −0.061 (t=−2.091, p<0.03) than non-graduates. This study found a moderate level of misconception of COVID-19. Non-graduates had higher levels of misunderstanding than graduates. The results suggest that an education campaign should focus on people with low levels of education to correct their misconceptions regarding the prevention of COVID-19 infection.

Antimicrobial activity of moringa peregrina seed oil: chemical composition and effect of extraction procedure

Background and objective: The importance of new sources of oils has recently emerged, one such source being Moringa. There is an urgent need to choose the most appropriate extraction method regarding its impact on the properties and stability of the extracted oil.The objective of this research work is to study the impact of two extraction methods on the chemical and thermal properties as well as the antimicrobial activity of Moringa peregrina seed oil.Methods: Moringa peregrina seeds were collected from their original growing locations in Sudan. Cold pressing (CP) and maceration inn-hexane (MH) was used to extract the oil, and their yields were found to be 9.12% and 21.87%, respectively. Chemical properties of the oil were studied and in each case triplicate analyses were completed. The mean and the standard deviation were then determined (mean±SD).Results: Besides the peroxide value, the chemical properties of the oil extracted by the two methods remained relatively unchanged. Additionally, the results revealed a higher activity of the cold pressed oil against all tested organisms (Bacillus subtilis, Staphylococcus aureus Escherichia coli, Pseudomonas aeruginosa, Candida albicans) compared to the one obtained by maceration method. Furthermore, the thermogravimetric analysis and derivative thermogravimetric analysis (TGA and DTGA) demonstrated significant variations in the onset of degradation between the oil samples extracted by the two methods: 200◦C (cold pressing) against 274◦C (maceration). The maximum mass loss for the oil extracted by the two methods does not differ significantly, and the final degradation temperature was similar. Conclusion: The differential scanning calorimeter (DSC) thermograms for the oil extracted by the two methods showed somewhat similar characteristics regarding the heating curves, while the cooling curves differed considerably. Keywords: Antimicrobial activity;  Cold press; Maceration; Moringa peregrina; Thermal properties.

Effect of Raphanus sativus on Glucose, Cholesterol and Triglycerides Levels in Glucose Loaded Rats

Background: In fact, diabetes is now a serious health concern, and the import of medications from other countries consumes a significant amount of foreign cash each year. The effects of Raphanus satives (Radish) in the treatment of diabetes mellitus were evaluated scientifically in this study. Thyroid hormone increases metabolic actions in almost every tissue, and the current study was an attempt to evaluate scientifically the effects of Raphanus satives (Radish) in the treatment of diabetes mellitus.Objectives: The main objective of this study is to evaluate the hypoglycemic effect of Raphanus sativus (Radish) on induced hyperglycemic rats.Methods: An oral administration of ethanolic extract of Radish in glucose loaded rats at dose of 250mg/k body weight,  standard group was administered with 10mg/kg of hypoglycemic drug glibenclamide for 2 consecutive weeks. The control group was given distilled water only. After the two weeks' time, the groups were subjected to a glucose tolerance test and measurement of plasma cholesterol and triglyceride levels. Results: significant reduction of blood glucose was observed (P <0.001), when compared with the control group at 2 hours after glucose loud. Radish ethanolic extract did not present any significant difference in cholesterol level after 2 weeks compared with start point. No significant difference was seen in triglyceride level after 2 weeks of administration of Radish extract compared with start point. Radish extract(250 mg/kg) did not affect kidney function  creatinin and urea, also liver  function were not affected Glutamic-Oxaloacetic Transaminase (GOT), Glutamic-Pyruvate Transaminase (GPT), albumin, total protein and bilirubin, this means administration of increased doses to hyperglycemic subjects can be considered safe. CONCLUSION: In this investigation, doses of radish extract (250 mg/kg) had no effect on renal function, creatinin, and urea, as well as liver function. Glutamic-Oxaloacetic Transaminase (GOT), Glutamic-Pyruvate Transaminase (GPT), albumin, total protein, and bilirubin .Keywords: Raphanus sativus, extract, hypoglycemic, glucose, rats 

A review on the health benefits of Monechma ciliatum (Black mahlab): A potential functional food

Background: Monechma ciliatum (MC) (Acanthaceae family) is a herb that grows in tropical and subtropical regions. It grows with small, brownish-black seeds. This is why the Sudanese people call it the “black mahlab”. This plant is primarily used in traditional meals, as well as the production of medical treatments and perfumes. Additionally, the seeds of the Monechma ciliatum plant are rich in fats, proteins, minerals, and other essential nutrients. It also functions as an effective laxative. As a result, this plant is commonly found as a supplement in cereal to enrich nutritional value. This review explores the nutritive value, antioxidants, antimicrobial, medicinal, cosmeceutical, and oxytocic properties of Monechma ciliatum seeds, leaves, and stem. To prepare this review, we researched published scientific literature by using the following keywords: “Monechma”, “Antioxidants”, “Antimicrobial”, nutritional”, “Monechma ciliatum”, “Monechma phenolics”. Our search was carried out in PubMed and Google Scholar databases and included original research from the past 25 years in English only. A total number of 50 original papers, which mentioned the phytochemistry, nutritional, biological, and medicinal properties of Monechma ciliatum were selected and considered for this review. Keywords: Monechma ciliatum, black mahlab, nutritional, antioxidants, Antimicrobial, oxytocic

Black mahlab (Monechma ciliatum L.) seeds: processing effects on chemical composition and nutritional value

Introduction. Monechma ciliatum L. seeds are rich in proteins, carbohydrates, oils and mineral contents. Researchers have focused on new production development but there is no available data on the impact of processing techniques on the quality of the seeds. Our study aimed to investigate the impact of boiling, roasting, and germination on the composition and nutritional value of Monechma ciliatum (black mahlab) seeds. Study objects and methods. We analyzed 7 kg of black mahlab seeds purchased from the local market. We applied standard methods used in boiling, roasting, and germination techniques. Proximate analyses were performed using the methods of the Association of Official Analytical Chemists. Minerals were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS), and fatty acids were determined by gas chromatography. Tocopherols and amino acids in processed seeds were determined by high-performance liquid chromatography. Results and discussion. The results showed that the proximate compositions of untreated, boiled, roasted, and germinated mahlab seeds were affected by boiling, roasting, and germination techniques. Most of the nutritional values were enhanced by all the treatments. In particular, all the processing techniques increased the protein content. Boiling and roasting increased the fat content, while boiling and germination increased the fiber content. Tocopherols were higher only in the germinated samples. Amino acids were increased by all the techniques. Minerals were affected by all the techniques, except for Na, which was higher in the germinated sample. Conclusion. Boiling, roasting, and germination enhanced significantly the chemical composition of Monechma ciliatum seeds, which make them a value ingredient to develop new food products.

Effectiveness of Gum Arabic in Diabetes and its Complications: A Narrative Review

Gum Arabic (GA) is a gummy exudation from Acacia species, rich in soluble fibers. It is a dietary fiber used traditionally by the natives of many countries of the Arabian Peninsula, Pakistan, and India as therapeutic natural product for treating various diseases including kidney diseases, impotence, obesity, and epilepsy. Diabetes represent a global health problem causing many complications and health risk to people of different ages. The current study aimed at identifying the role of Gum Arabic in treating diseases especially diabetes. Many studies have been conducted on the role of Gum Arabic in experimentally induced diabetes as well as randomized clinical studies. This narrative review was written based on a database search in common libraries such as PubMed, Cochrane, Web of Science, and Scopus. The libraries were searched for English articles published between 1995 and 2020 focusing on the role of Gum Arabic in different preclinical and clinical trials of early and advanced level of diabetes. Keywords: Gum Arabic, diabetes, animals, human, nanoparticles

Knowledge and Practice Regarding Coronavirus Disease Prevention (COVID-19) Among Internally Displaced Persons in Camps in Central Darfur Region, Sudan

Background: The lacking healthcare system services in conflict areas and the emergence of infection with a pandemic of coronavirus disease may exacerbate the humanitarian crisis among the camp residents in the central Dafur region of Sudan. Adequate knowledge and practices are vital to prevent coronavirus disease 2019 (COVID-19). Therefore, this study aimed to investigate the knowledge and practice regarding COVID-19 among internally displaced persons in Sudan. Methods: In this cross-sectional study, data were collected through an online survey using a self-administered questionnaire. Convenience sampling method was used for the internally displaced persons in two camps of Zalingei town, central Darfur region, Sudan. Results: In total, 143 participants responded; 75 (52.4%) of them were female, while 68 (47.6%) were male; 49 (34.3%) were between the age of 50 and 60 years; 78 (54.5%) were formally uneducated; 126 (88.1%) did not have a chronic disease; and 56 (39.2%) knew about COVID-19 from their relatives and friends. The overall mean of participants’ knowledge toward COVID-19 was 3.68 (SD ± 0.60(, denoting good with a rate of 73.6% and that of the practice was 2.65 (SD ±1.08), denoting moderate with a rate of 53%. A positive correlation was seen between knowledge and practice (r = 0.700, p < 0.000). Statistically significant differences were observed between the mean score of knowledge and practice with age, education, and information sources (p < 0.0001). While graduates showed a higher knowledge (116.29, p = 0.000), secondary respondents showed a higher practice (115.04, p = 0.000) than others. Conclusion: This study suggests educational intervention and awareness programs for uneducated and older people.

Significance of Health Related Predictors of Diabetes in Pima Indians Women

This study was carried out to investigate the significance of health-related predictors of diabetes in Pima Indians Women. The study population was the females 21 years and above of Pima Indian heritage patients of diabetes and digestive and kidney diseases. The research question was: what are the health predictions that associated with the presence of diabetes in Pima Indians? The study aimed at testing the significance of health-related predictors of diabetes in Pima Indians women. That was according to World Health Organization criteria (i.e. if the 2-hour post-load plasma glucose was at least 200 mg/dl at any survey examination or if found during routine medical care). A total of 768 women were registered in the database. (268:35%) were having diabetes, while (500:65%) were not. The average number of pregnancies was higher (4.9) in diabetic in comparing to (3.3) in non-diabetic women with a significant difference (P <0.05) between them. Significant (P<0.05) positive correlation (41.7) was found between plasma level and occurrence of diabetes and that patients with a normal range of plasma level were at higher risk of being diabetic. OR = 2.479, [95% CI =1.999, 3.073], P=0.00. The Body Mass Index (BMI) showed a significant association (P<0.05) with the occurrence of diabetes and that even the normal weighted women were at almost 8 times risk of being diabetic in comparison to the overweight, OR = 7.876, [95% CI= 3.557, 17.439]; P=0.00. Significant inverse relation (P<0.05) was seen between the age distribution and diabetic occurrence. Women at age group < 25 years were at higher risk to contract diabetes in comparison to the older age group. OR = 6.616, [CI= 4.145, 10.561], P=0.00. The study concluded that the genetic component is likely to contribute more to the emergence of diabetes in the Pima Indians and their offspring. The study recommended that there should be more preventive input and periodic follow-up especially during pregnancy in this ethnic group to reduce the risk and complications of type II diabetes. Besides, the provision of intervention for weight reduction.

Discrimination of honeys using colorimetric sensor arrays, sensory analysis and gas chromatography techniques

Aroma profiles of six honey varieties of different botanical origins were investigated using colorimetric sensor array, gas chromatography-mass spectrometry (GC-MS) and descriptive sensory analysis. Fifty-eight aroma compounds were identified, including 2 norisoprenoids, 5 hydrocarbons, 4 terpenes, 6 phenols, 7 ketones, 9 acids, 12 aldehydes and 13 alcohols. Twenty abundant or active compounds were chosen as key compounds to characterize honey aroma. Discrimination of the honeys was subsequently implemented using multivariate analysis, including hierarchical clustering analysis (HCA) and principal component analysis (PCA). Honeys of the same botanical origin were grouped together in the PCA score plot and HCA dendrogram. SPME-GC/MS and colorimetric sensor array were able to discriminate the honeys effectively with the advantages of being rapid, simple and low-cost. Moreover, partial least squares regression (PLSR) was applied to indicate the relationship between sensory descriptors and aroma compounds.

Aflatoxin B1 levels in groundnut and sunflower oils in different Sudanese states

In this article, the level of contamination of aflatoxin B1 (AFB1) in groundnut and sunflower oils was determined. The 241 oil samples were collected from Khartoum, Gezira, Kordofan and Algadarif states of Sudan and assessed for AFB1 using high-performance liquid chromatography (HPLC). AFB1 levels in groundnut oil samples ranged from 0.5 to 70 µg/kg and were 0.7 to 35 µg/kg in sunflower oil samples. High contamination was found in unrefined samples. It was concluded that AFB1 levels in oil samples indicated that growing, harvesting, handling and storage of the crops were not done properly.

Extraction and characterization of gelatin from two edible Sudanese insects and its applications in ice cream making

Three methods were used for extraction of gelatin from two insects, melon bug ( Coridius viduatus) and sorghum bug ( Agonoscelis versicoloratus versicoloratus). Extraction of insect gelatin using hot water gave higher yield reached up to 3.0%, followed by mild acid extraction which gave 1.5% and distilled water extraction which gave only 1.0%, respectively. The obtained gelatins were characterized by FTIR and the spectra of insect’s gelatin seem to be similar when compared with commercial gelatin. Amide II bands of gelatins from melon and sorghum bug appeared around at 1542–1537 cm−1. Slight differences in the amino acid composition of gelatin extracted from the two insects were observed. Ice cream was made by using 0.5% insect’s gelatin and compared with that made using 0.5% commercial gelatin as stabilizing agent. The properties of the obtained ice cream produced using insects gelatin were significantly different when compared with that made using commercial gelatin.

Antioxidant activity of different parts from Annona squamosa, and Catunaregam nilotica methanolic extract

BACKGROUND

We extracted phenolic compounds from Annona squamosa (leaves, bark, roots and seedcake), and Catunaregam nilotica (leaves, bark and seedcake) using methanol and their antioxidant activity was evaluated employing various established in vitro systems.

MATERIAL AND METHODS

Annona squamosa (leaves, bark, roots and seedcake), and Catunaregam nilotica (leaves, bark and seedcake) were used in the study. Antioxidant activity was estimated using oxygen radical absorbance capacity, MTT assay and DPPH assays, and polyphenols profile was determined by HPLC method.

RESULTS

The total phenolic content was determined by Folin-Ciocalteu method and the highest amounts were 171.5, 170.4, 169.5, and 167.9 g/kg plant extract as GAE for A. squamosa roots, C. nilotica bark, C. nilotica leaves, and A. squamosa bark, respectively. The leaves extracts of the two trees showed high flavoniod content. The results showed that C. nilotica and A. squamosa extracts displayed antioxidant activities, with IC(50) values ranging from 7.81 to 62.5 and from 7.81 to 125.0 μg/ml, respectively using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The different parts extracts from two trees showed good antioxidant activity evaluated by oxygen radical absorbance capacity and MTT assay systems.

CONCLUSION

These results suggested that Annona squamosa and Catunaregam nilotica phenolic compounds could be utilized as a natural antioxidant.

Chemical composition, antioxidant and antibacterial properties of the essential oils of Etlingera elatior and Cinnamomum pubescens Kochummen

BACKGROUND

Plant essential oils are widely used as fragrances and flavours. Therefore, the essential oils from the leaves of Cinnamomum pubescens Kochummen (CP) and the whole plant of Etlingera elatior (EE) were investigated for their antioxidant, antibacterial and phytochemical properties.

RESULTS

CP and EE were found to contain appreciable levels of total phenolic contents (50.6 and 33.41 g kg(-1) as gallic acid equivalent) and total flavonoid contents (205.6 and 244.8 g kg(-1) as rutin equivalent), respectively. DPPH free radical scavenging activity of CP is superior to EE (P < 0.05) showing IC(50) of 77.2 and 995.1 µg mL(-1), respectively. Methicillin-resistant Staphylococcus aureus (MRSA), Bacillus subtilis, Pseudomonas aeruginosa and Salmonella choleraesuis were tested against CP and EE. Only MRSA was the most susceptible bacteria to CP. GC/MS studies resulted in the identification of 79 and 73 compounds in CP and EE, respectively. The most abundant components of EE included β-pinene (24.92%) and 1-dodecene (24.31%). While the major compound in CP were 1,6-octadien-3-ol,3,7-dimethyl (11.55%), cinnamaldehyde (56.15%) and 1-phenyl-propane-2,2-diol diethanoate (11.38%).

CONCLUSION

This study suggests that the essential oils from Cinnamomum pubescens Kochummen and Etlingera elatior could be potentially used as a new source of natural antioxidant and antibacterial in the food and pharmaceutical industries.