Article Per Year (5 Year)
p-Index From 2020 - 2025
1.006
P-Index
This Author published in this journals
All Journal Budapest International Research in Exact Sciences (BirEx Journal)
Ngbolua, Koto-te-Nyiwa
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Physics Transportation

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Enhancing Environmental Preservation through Biomethanation of Solid Waste from the Sisal Industries of South Amboasary Marie, Tolojanahary Jean; Tsirombahy, Soja Lahara; Boni, Randrianjaka; Razafimahatratra, Razafimahatratra; Antoine, Herisoa; Christian, Manjovelo Sambany; Daniel, Razafindrazanakolona; Ngbolua, Koto-te-Nyiwa; Baholy, Robijaona Rahelivololoniaina; Ruphin, Fatiany Pierre
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 3 (2024): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i3.7884

Abstract

The primary objective of this study is to explore sustainable alternatives to address the accumulation of waste resulting from the sisal exploitation in South Amboasary. Laboratory tests involving 8,000 g of defibration residues mixed with 1,600 g of inoculum over 69 days produced 355 liters of biogas, equating to 335 L/kg of dry matter with a methane content of 58% and a lower calorific value of 20,807 kJ/Nm³. These results suggest that biomethanation can valorize the 212,630 tons of sisal waste available annually, potentially replacing the 2,030 m³ of diesel consumed each year and meeting the domestic fuel needs of 16,575 households with eight members each. Additionally, a production of 137,800 tons of compost is projected to prevent the emission of approximately 7,000 tons of CO₂-equivalent toxic gases into the atmosphere. The technical feasibility studies for infrastructure implementation and project organization address several issues: local treatment of organic waste, creation of local jobs, energy independence, agricultural sustainability, and economic development.
Antisickling and Antibacterial Activities of Anthocleista schweinfurthii Gilg. (Gentianaceae) from Non-human Primates Pharmacopoeia in Democratic Republic of the Congo Ngunde-te-Ngunde, Samy; Lengbiye, Emmanuel Moke; Joseph, Tshidibi Dipa; Franck, Kengo Velantia; Djolu, Ruphin D.; Mesango, Colette Ashande; Gbolo, Benjamin Z.; Jeff, Iteku Bekomo; Mpiana, Pius Tshimankinda; Ngbolua, Koto-te-Nyiwa
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 3 (2019): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i3.345

Abstract

The aim of the present study was to evaluate the Chemical composition and bioactivity of Anthocleista schweinfurthii Gilg (Gentianaceae) fruits, leaves, root bark and stem bark extracts against Sickle cell disease (SCD) and associated bacteria. The antisickling and antibacterial activities were carried out using Emmel and micro-dilution methods respectively. The results revealed that the fruits, leaves, root bark and stem bark extracts  of A. schweinfurthii contains various secondary metabolites such as the alkaloids, saponins, total polyphenols, flavonoids, tannins, anthocyanis, leuco-anthocyanins and quinones.  The ethyl acetate and methanol extracts displayed antisickling activity. While, the antibacterial activity of different plant extracts tested was weak toward tested bacterial strains (CMI ≥125μg/mL). The antibacterial activity can be improved by bio-guided fractionation of the n-hexane, ethyl acetate or methanol soluble fraction. This study provides for the first time a scientific basis for the in vitro antisickling activity of A. schweinfurthii.
Physico-Chemical and Mineralogical Characterization of Analavory, Bemololo and Miandrivazo Clays Elidon, Ramahandry Jean; Baholy, Robijaona Rahelivololoniaina; Andrianirina, Randriantsimbazafy; Wega, Razafindramanga Athou; Rokiman, Letsara; Riana, Razafindrakoto Fanoina Ny; Ngbolua, Koto-te-Nyiwa; Aurelien, Mandimbiiharison
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 2 (2024): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i2.7870

Abstract

The general objective of this study is to thoroughly characterize the clays of Analavory, Bemololo and Miandrivazo from a physico-chemical and mineralogical point of view. To this end, analyses were carried out on all  nine samples. The results provided information on important clay parameters such as moisture content, density, pH, constituent chemical elements and specific surface area, and enabled the clays to be classified according to their clay qualities and plasticity.
Effects of land use change on amphibian community from Kianjavato forest station, south eastern Madagascar Rodin, Raberanto; A.D., Razafindrazanakolona; Ashande, Colette Masengo; Ngbolua, Koto-Te-Nyiwa; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 2 (2024): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i2.7871

Abstract

An assessment of amphibian species was carried out in the Forêt Classée de Kianjavato (FCK), part of the Dense Humid Evergreen Forests of eastern Madagascar. The research was carried out in two phases, first during the cool season (June - July 2012) and then during the wet season (November - December 2014), covering three types of habitat: deforested area, reforestation area and forest area. Three standard inventory methods were used: direct observation, systematic excavation and trapping. A total of 26 amphibian species were recorded, including one new to the site. Most of these species are classified as Least Concern by the IUCN, represented by low numbers of individuals. The distribution of amphibian species is influenced by biotic factors such as the structure of the vegetation cover. Amphibians are found in both forested and degraded areas. The degraded areas share several species, forming a habitat distinct from the forested area. The study highlights the extension of the range of distribution of amphibian species and emphasises that the conditions necessary for their presence in degraded areas are not yet in place. The FCK, with its varied ecological landscape, is crucial to the preservation of biological diversity in eastern Madagascar.
Exploring the Nutritional Potential, Adaptive Traits, and Resilience of Four Mucuna Pruriens Varieties against Malnutrition in Southern Madagascar amidst the Challenges of Global Climate Change Pierre, Rakotomamonjy; Erménégilde, Ralaibia Boniface; Rokiman, Letsara; Daniel, Razafindrazanakolona; Samuël, Randrianasolo Fenosoa; Riana, Razafindrakoto Fanoina Ny; Ngbolua, Koto-te-Nyiwa; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 7, No 1 (2025): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v7i1.8014

Abstract

In the persistent pursuit of alleviating the deleterious effects of malnutrition, particularly accentuated in vulnerable regions such as southern Madagascar, a comprehensive examination of the inherent capacities of botanical resources emerges as imperative. The current investigation thus endeavors to delve into the nutritional intricacies and underlying adaptations of four distinct cultivars of Mucuna pruriens, with the overarching objective of elucidating potential avenues for addressing the enduring predicaments of malnutrition, which corrodes the socio-economic fabric of indigenous communities while being exacerbated by the adverse ramifications of global climatic shifts. This rigorous inquiry is poised to scrutinize the diverse cultivars of Mucuna pruriens extensively, meticulously analyzing their nutritional profile encompassing both micronutrient and macronutrient constituents. The fundamental aspiration of this scholarly endeavor is to elucidate the underexplored nutritional reservoirs harbored within these Mucuna pruriens varieties, presenting auspicious prospects for fostering a more equitable and sustainable dietary paradigm. This entails employing a series of preparatory measures including soaking, dehulling, germination, cooking, and drainage, aimed at mitigating the presence of anti-nutritional elements, thereby optimizing the nutritional utility of the seeds. 
Mineralogical determination of Bemololo, Miandrivazo and Analavory clays by X-ray diffraction for applications Elidon, Ramahandry Jean; Baholy, Robijaona Rahelivololoniaina; Andrianirina, Randriantsimbazafy; Wega, Razafindramanga Athou; Rokiman, Letsara; Rija, Rabearisoa Solotiana; Ngbolua, Koto-te-Nyiwa; Aurélien, Mandimbiiharison
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 3 (2024): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i3.7974

Abstract

After characterizing the clay minerals from the Bemololo (BMLL), Miandrivazo (MNDV), and Analavory (ANLV) deposits using X-ray diffraction (XRD), dye absorption experiments and photochemical screening analyses were conducted to determine the potential applications for each clay. XRD analysis revealed that the Bemololo deposit comprises the following mineral compositions: BMLL 001 is rich in muscovite; BMLL 002 contains a mixture of vermiculite, sepiolite, and amphibole; BMLL 003 is composed of kaolinite and chlorite; and BMLL 004 is predominantly kaolinite. For the Miandrivazo deposit, MNDV 001 is a mixture of kaolinite, muscovite, and chlorite; MNDV 002 contains chlorite and muscovite; and MNDV 003 comprises kaolinite and muscovite. The Analavory deposit features ANLV 001, which contains aragonite and calcite, and ANLV 002, identified as vermiculite clay. Dye absorption experiments indicated that BMLL 001, BMLL 002, and BMLL 003 have potential applications in water treatment, particularly in the removal of unwanted dyes or ions. Additionally, photochemical screening revealed the presence of deoxyose in BMLL 004, while BMLL 002, ANLV 002, and ANLV 001 were found to contain tannins.
Practices of fish farmers: techniques, characteristics, feeding, and type of aquaculture farming in the district of Antsirabe I Vakinankaratra Madagascar Rindra, Rabarison; Nicole, Ramanambe Ravelomanantsoa; Tahina, Rabeharitsara Andry; Ngbolua, Koto-te-Nyiwa
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 4 (2024): Budapest International Research in Exact Sciences, October
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i4.8008

Abstract

This study aims to explore the current practices of fish farmers, focusing on the different rearing techniques and the use of aquaculture environments in Antsirabe Vakinankaratra. In particular, the survey examines the management of rearing environments, the selection of species for rearing types, feeding and the characteristics of rearing environments. Many fish farmers notice significant benefits from their farming method. However, several problems persist, this situation, calls for training initiatives and financial support to optimize their production and ensure the sustainability of their activities.
Co-Authors A.D., Razafindrazanakolona Andrianirina, Randriantsimbazafy Antoine, Herisoa Ashande, Colette Masengo Aurelien, Mandimbiiharison Baholy, Robijaona Rahelivololoniaina Boni, Randrianjaka Christian, Manjovelo Sambany Daniel, Razafindrazanakolona Djolu, Ruphin D. Elidon, Ramahandry Jean Erménégilde, Ralaibia Boniface Franck, Kengo Velantia Gbolo, Benjamin Z. Jeff, Iteku Bekomo Joseph, Tshidibi Dipa Lengbiye, Emmanuel Moke Marie, Tolojanahary Jean Mesango, Colette Ashande Mpiana, Pius Tshimankinda Ngunde-te-Ngunde, Samy Nicole, Ramanambe Ravelomanantsoa Pierre, Rakotomamonjy Razafimahatratra, Razafimahatratra Riana, Razafindrakoto Fanoina Ny Rija, Rabearisoa Solotiana Rindra, Rabarison Rodin, Raberanto Rokiman, Letsara Ruphin, Fatiany Pierre Samuël, Randrianasolo Fenosoa Tahina, Rabeharitsara Andry Tsirombahy, Soja Lahara Wega, Razafindramanga Athou