AEB Volume 16, Number 4: April, 2022

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Antimicrobial activities of some medicinal plant extracts based on nanobiomedicine

Rukaia Gashgari and Abrar Othman

Abstract: The evaluation of antimicrobial study of few medicinally used plants to control the growth of some pathogenic microorganisms. The standard protocols with slight modifications were utilized to prepare silver nanoparticles using five medicinal plants extracts namely, Juniperus exclsa, Moringa oleifera, Prosopis juliflora, Pithecellobium dulce and Eucalyptus globulus, were randomly collected from Jeddah and Taif city, Kingdom of Saudi Arabia. The formation of nanoparticles was observed by UV/Vis spectra and further characterization has been carried out by different analytical techniques. The shape, size and morphology of nanoparticles were observed by SEM and TEM images. The prepared extracts and nanoparticles were tested for antimicrobial study and the total phenolics of the methanolic extract was confirmed by GCMS and HPLC techniques. The nanoparticles were assessed against five microorganisms such as Gram-positive Staphylococcus aureus ATCC 6538, Gram-negative Pseudomonas aeruginosa ATCC 9027 and Escherichia coli ATCC 8739, yeast Candida albicans ATCC 10231and fungi Aspergillus niger ATCC 16404.

[ FULL TEXT PDF 1-5 ] 10.22587/aeb.2022.16.4.1

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Characteristics of Actors in the System for Beef Cattle Business in Bone Regency, South Sulawesi Province, Indonesia

Irma, Sitti Nurani Sirajuddin, Hastang

Abstract: This study aimed to determine the characteristics of actors in the production sharing system of beef cattle (breeders and owners of capital) in Bone Regency, South Sulawesi Province, Indonesia. The research was conducted in Bone Regency, South Sulawesi Province, from April to June 2021. The population was all beef cattle production sharing system actors in Patimpeng District, Bone Regency. The sample was the perpetrators of the profit-sharing system of beef cattle in Masago Village, Patimpeng District, Bone Regency, as many as 25 breeders and 10 owners of capital. Analysis of the data used is descriptive quantitative analysis with percentages. The results showed that the characteristics of the actors of the profit-sharing system of beef cattle, namely breeders and owners of capital, had differences in terms of age, education, number of dependents, experience raising and type of work.

[ FULL TEXT PDF 6-12 ] 10.22587/aeb.2022.16.4.2

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Effect of Substituting Fish Meal with Various Plant Powders on the Growth Performance of Nile Tilapia (Oreochromis niloticus L.)

Ghada A. EL Hag, Ibtisam M.A. Mansour, Egbal O. Ahmed and Isam M. Abu Zeid

Abstract: Nile tilapia is considered to be one of most common fish species that has great potential in the freshwater aquaculture industry in Sudan. This study aimed to assess the effects on the growth and body composition of O. niloticus fingerlings by replacing the dietary fish meal (FM) with various plant powders. FM has been replaced in the basic diet of O. niloticus with peanut, millet, sorghum and wheat polish. Two hundred fish fingers (5 g) were divided into four equal groups. The growth parameters of the fish were calculated after 90 days of feeding. The levels of crude protein, fat, fiber, moisture and ash in experimental diets showed differences between the diets. In general, the lowest levels of crude protein, fat, fiber, moisture and ash were found in fish fed with sorghum. In summary, this study contributes to the ongoing research into the use of vegetable proteins as an alternative to fish diet, which are both cheaper
and valuable sources of protein.

[ FULL TEXT PDF 13-18 ] 10.22587/aeb.2022.16.4.3

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