Effects of Leaf and Root Extracts of Aspilia Plant (Aspilia mossambicensis) (Oliv) Wild.on Some Selected Micro-Organisms

Musyimi, David M.; Ogur, Joseph A.; ., P.M. Muema

doi:10.3923/ijbc.2007.213.220

Cited by 2 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A comparable investigation was conducted by Njeru and Muema [50] within the Mbeere community, Embu County, exploring its potential therapeutic use for tuberculosis. The results of this study differed with those carried out around Maseno University, Kenya by Musyimi et al [51] who found the presence of alkaloids, steroids and glycosides which were absent in this study. In both studies methanol as a solvent was used for extraction, therefore the difference could be attributed to different rainfall amount or even the soil type in these different regions.…”

Section: Effect Of Solvents Choice and Plant On Efficacy Of Plant's B...contrasting

confidence: 99%

Screening of Antimicrobial Activity of Poly Herbal Extracts against Bacterial Pathogens Causing Gastroenteritis in Tharaka Nithi County, Kenya

Kiteme

Onyango

Njagi

et al. 2023

SAJRM

View full text Add to dashboard Cite

Herbals have been used for decades to treat gastrointestinal infections across the world, including in Tharaka-Nithi County, Kenya. Crude extracts from herbs have long been prescribed by traditional healers for treatment of typhoid, cholera, and shigellosis. However, the effectiveness of extracts obtained using different extraction solvents such as methanol, acetone, and hexane have not fully been evaluated. This study aimed at evaluating the effect of solvents (Ethanol, hexane, and methanol) on the yield of crude extract from plants (Erythrinna abyssinica, Aspilia pluriseta, Vangueria infausta, Ficus sycomorus, and Carissa edulis), assessing the effect of the solvents on extracted active metabolites, and determining the effect of these solvents on extract’s bioactivity against Vibrio cholerae, Shigella flexneri, and Salmonella typhimuriumi and, Escherichia coli that served as a model organism for screening plant extracts against Gram-negative bacteria. Crude extracts were obtained by soaking dried ground plant parts in individual solvents, which were then concentrated by a rotary evaporator. The phytochemical screening to detect plant metabolites was done qualitatively. Bioassays to analyze the efficacy of the plant crude extracts against the microbes were carried out in 4×3×3×5 factorial experiment laid out in a completely randomized design. The determination of bioactivity of herbal extracts was carried out using minimal inhibition concentration and minimum bactericidal concentration methods. Data obtained on the bioactivity assay (Count of the bacteria colony forming units) was analyzed using the Kruskal-Wallis test at α = 0.05, and medians were compared by the Wilcoxon rank sum test in Scientific Analysis System version 9.4. Methanol solvent produced higher quantities of crude extracts for all the herbal samples used with, Vangueria infausta producing the highest extract (5.06g). Most phytochemicals were present in Methanolic extracts compared to hexane and acetone extracts. There was a significant (p < 0.05) difference in the bioactivity of different herbal plants against bacterial pathogens at different concentrations of crude extract. The efficacy of plant extract increased progressively from 100ppm to 1000ppm concentration. Methanol is recommended for use in the extraction of medicinal plant extracts as it leads to improved potency as compared to hexane and acetone.

show abstract

Section: Effect Of Solvents Choice and Plant On Efficacy Of Plant's B...contrasting

confidence: 99%

Screening of Antimicrobial Activity of Poly Herbal Extracts against Bacterial Pathogens Causing Gastroenteritis in Tharaka Nithi County, Kenya

Kiteme

Onyango

Njagi

et al. 2023

SAJRM

View full text Add to dashboard Cite

show abstract

“…A. mossambicensis , also known as “wild sunflower,” belongs to the order Asterales and family Compositae (Musyimi, Ogur, & Muema, 2007). The plant is widespread in central and eastern tropical Africa (Norton, Huang, & Rodriguez, 1993).…”

Section: Plant Extracts Used In the Control Of Tilapia Reproductionmentioning

confidence: 99%

“…The leaves and roots extract of aspilia plants contain flavonoids, alkaloids, saponin, and steroids (Kapinga, Limbu, Madalla, Kimaro, & Tamatamah, 2019; Musyimi et al, 2008). The anti‐fertility effect of A. mossambicensis is linked to the presence of saponins, and flavonoids (Musyimi et al, 2007). The feeding of Nile tilapia ( Oreochromis niloticus ) on diets containing 2–8 g of A. mossambicensis leaf extract kg −1 of diet degenerated seminiferous tubules, thereby reducing the number of hatchlings in the experimental fish (Kapinga et al, 2019; Kapinga, Limbu, Madalla, Kimaro, & Tamatamah, 2018).…”

Section: Plant Extracts Used In the Control Of Tilapia Reproductionmentioning

confidence: 99%

“…Extracts from 20 plant species, belonging to 17 families are reported to control reproduction in tilapia culture systems. The geographical distribution, usable parts phytochemical composition, androgenic and fertility impairment attributes of these plants are described below: 2.1.1 | Aspilia plant, Aspilia mossambicensis A. mossambicensis, also known as "wild sunflower," belongs to the order Asterales and family Compositae (Musyimi, Ogur, & Muema, 2007). The plant is widespread in central and eastern tropical Africa (Norton, Huang, & Rodriguez, 1993).…”

Section: Plants With Androgenic and Fertility Impairment Effects On T...mentioning

confidence: 99%

See 1 more Smart Citation

The use of plant extracts to control tilapia reproduction: Current status and future perspectives

Abaho

Masembe

Akoll

et al. 2021

J World Aquaculture Soc

View full text Add to dashboard Cite

Control of prolific reproduction is vital for a profitable tilapia aquaculture enterprise. All-male tilapia culture is a popular method used to control prolific breeding, because the male individuals grow faster than female and mixed-sex populations. Presently, most farmers use 17α-methyl testosterone (MT) to produce all-male tilapia individuals, although synthetic hormones are linked to human health and environmental risks. Recently, considerable attention has focused on plant-based products as alternatives to MT, because they are affordable, safe, and eco-friendly. Despite the growing interest in using plant extracts to prevent frequent spawning in tilapia production, the available information is not collated to standardize application guidelines. Accordingly, this review article consolidates existing knowledge on the use of plant extracts to control prolific breeding in tilapia culture systems. In addition, limitations to commercial application of the extracts are identified. To date, seed, root, and leaf extracts of 20 plant species, most notably, Tribulus terrestris, Mucuna pruriens, and Carica papaya, exhibit potential for controlling unwanted breeding in tilapia production systems. The extracts are mainly administered orally, incorporated in fish feeds. Saponins and flavanoids are the main bioactive compounds in the phytoextracts,

show abstract

Effects of Leaf and Root Extracts of Aspilia Plant (Aspilia mossambicensis) (Oliv) Wild.on Some Selected Micro-Organisms

Cited by 2 publications

References 20 publications

Screening of Antimicrobial Activity of Poly Herbal Extracts against Bacterial Pathogens Causing Gastroenteritis in Tharaka Nithi County, Kenya

Screening of Antimicrobial Activity of Poly Herbal Extracts against Bacterial Pathogens Causing Gastroenteritis in Tharaka Nithi County, Kenya

The use of plant extracts to control tilapia reproduction: Current status and future perspectives

Contact Info

Product

Resources

About