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All Journal Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Budapest International Research in Exact Sciences (BirEx Journal)
Baholy, Robijaona Rahelivololoniaina
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Physics Social Sciences Transportation Other

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Journal : Budapest International Research in Exact Sciences (BirEx Journal)

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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.
Multivariate Analysis for Sustainable Water Management: Understanding and Managing Environmental Risks in the Ikopa Watershed, Madagascar Ulrich, Fidelio Arnold; Bruno, Razanamparany; Robert, Rejo; Narindra, Ratiarimananjatovo; Nyiwa, Ngbolua Koto-Te-; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 1 (2024): 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.v6i1.7817

Abstract

This paper delves into environmental challenges in Madagascar's Ikopa Watershed, focusing on the impact of climate disruptions and human activities on terrestrial and aquatic ecosystems. Employing a multidisciplinary approach, the research is examining the intricate interplay of geological, climatic, and human-induced factors, exploring their implications for sustainable water resource management. The study has employed representative sampling, surveying 386 households, and has combined it with field data collection and an evaluation of local perspectives on environmental risks. The results have identified four main forms of environmental degradation: water and wind erosion, biological, and water degradation. These phenomena have significant implications for water availability and quality, as well as local agricultural activities. Additionally, the research has classified households into two groups based on their exposure to climate variability, emphasizing the need for tailored adaptation strategies to address specific environmental challenges. The findings underscore the importance of local adaptation initiatives, such as sustainable land management and community awareness, to enhance resilience against environmental risks. Conclusively, the paper emphasizes the importance of ongoing and customized water resource management in the Ikopa Watershed, taking into account local perspectives, adaptation strategies, and future environmental challenges.
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. 
Integration of Fruit and Vegetables in the Food of Oreochromis Niloticus in the Vakinankaratra Region Rindra, Rabarison; Nicole, Ravelomanantsoa Ramanambe; Tahina, Rabeharitsara Andry; Pierre, Rakotomamonjy; Ngbolua, Koto-te- Nyiwa; Baholy, Robijaona Rahelivololoniaina
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.v6i3.7973

Abstract

In order to promote the nutrition of tilapia in farming, a food has been created from traditional raw materials and containing a quantity of banana flour and carrot flour from local production 3%. We tested the food which contains 33% crude proteins and 8% lipids on carp fry having an initial weight of 99.56 ±1.12 gr during 50 days in Vakinankaratra region, Madagascar . After 50 days of experiment, the final weights of the fish fluctuated between 187.63g and 188.15g depending on the treatments used. The food containing banana flour, carrot and the control food showed almost similar growth and food transformation rates, with specific growth rates (SGR) of 3.12%/d and 3.14%/ j as well as a conversion rate of 1.5 and 1.5. Thanks to this test, we were able to observe the impact of banana and carrot on the development of tilapia. We will continue to study the use of local agri-food by-products and waste in feeding this fish.
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.
Optimizing Sulfuric Acid 98% Leaching: Lithium Recovery from Madagascar Spodumene Rija, Rabearisoa Solotiana; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 7, No 4 (2025): 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.v7i4.8114

Abstract

A comprehensive study of lithium extraction from Vakinankaratra, Madagascar spodumene through sulfuric acid digestion and subsequent aqueous leaching is presented. The process initiates with calcination, a pretreatment designed to induce the alpha-to-beta phase transformation of spodumene, resulting in decreased density, increased friability, and enhanced chemical reactivity. Characterization of the ore, employing X-ray fluorescence (XRF) and atomic absorption spectroscopy (AAS), revealed a mineralogical composition dominated by oxides of lithium, silicon, aluminum, potassium, and fluorine, confirming the presence of economically relevant lithium concentrations. The investigation explored the influence of reaction time, varying from one to three hours, at elevated digestion temperatures. Rigorous optimization of experimental parameters was conducted, yielding significant insights into the leaching process. The findings demonstrate a strong correlation between lithium extraction efficiency and the ore-to-acid ratio, temperature, and, most notably, reaction time. Under optimized conditions, specifically a reaction temperature of 250°C and a duration of three hours, a 92% lithium extraction rate was achieved for both calcined spodumene and lepidolite samples. This study provides a detailed understanding of the critical parameters governing lithium extraction from Malagasy spodumene, contributing to the development of efficient and industrially applicable extraction methodologies.
Phytochemical analysis of Flacourtia ramontchi (Salicaceae) Mamy, Andrianarijaona; Fabri, Ralaivaon-dratsitonta Jumaël Edith; Ruphin, Fatiany Pierre; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 7, No 3 (2025): 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.v7i3.8112

Abstract

Flacourtia ramontchi is a medicinal plant deeply rooted in the traditional practices of Madagascar, where a decoction from its leaves and bark is commonly used to treat respiratory ailments such as asthma and dry coughs. The present study was conducted to provide a scientific foundation for these traditional uses by performing a comprehensive phytochemical analysis. The investigation involved the successive maceration of powdered bark and leaf samples using a series of solvents of increasing polarity, namely n-hexane, dichloromethane (DCM), and methanol. This extraction process yielded a variety of crude extracts, with the highest yields for both plant parts obtained from the non-polar hexane solvent, suggesting a rich presence of non-polar constituents. Phytochemical screening of the extracts identified a significant abundance of secondary metabolites with recognized therapeutic value. The bark and leaves were particularly rich in polyphenols, tannins, and flavonoids, compounds known for their antioxidant, anti-inflammatory, and antimicrobial properties, which scientifically validate the plant's traditional medicinal applications. Following the preliminary screening, the DCM bark extract was selected for further separation and purification. Thin-layer chromatography (TLC) was optimized to an ideal hexane/DCM (30:70) mobile phase, revealing four dominant constituents. This strategic approach led to the subsequent isolation of a pure compound via column chromatography. The fraction with the highest yield was chosen for structural elucidation. The structure of the isolated compound was determined using mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy, including ¹H NMR and ¹³C NMR. Spectral data analysis, specifically the molecular ion peak in the mass spectrum at m/z 300 and the carbon and proton signals from the NMR data, confirmed the compound to be spruceanol, a diterpenoid. This finding is a significant contribution to the understanding of the plant’s chemical composition.
Integrated Valorization of Malagasy Micro-Crustaceans : Caridina Serratirostris, Caridina Typus and Acetes Erythraeus for the Blue Circular Economy Fifaliana, Rasolofoson Joharisoa; Baholy, Robijaona Rahelivololoniaina
Budapest International Research in Exact Sciences (BirEx) Journal Vol 7, No 4 (2025): 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.v7i4.8120

Abstract

Chronic malnutrition in Madagascar's Haute Matsiatra region is linked to severe deficits in animal protein and micronutrients. This study evaluates the nutritional composition and market dynamics of three indigenous micro-crustacean species (collectively known as patsa or chevaquine) for sustainable valorization within a Blue Circular Economy framework.Nutritional analysis established the Red Shrimp (Caridina serratirostris) as a superior functional food. It possesses extraordinary density of critical nutrients, including 46,174 ppm of Calcium and an unparalleled 5,360 ppm of Iron (Fe was undetectable in other varieties). Furthermore, its high 22.37 % Lipid content makes it a crucial calorie-dense resource, yielding 1,607.8 kcal/100 g. Market data from Anjoma Market indicated a high-value, high-demand profile for the Red Shrimp, but also significant supply chain fragility. In contrast, the White Shrimp (Acetes erythraeus), despite low market value, showed greater commercial stability, with up to 5.4 % of vendors selling 10 to 50 kg/day. The proposed valorization strategy is two-tiered: The limited, high-value Red Shrimp supply should be dedicated to nutritional powder fortification, while the higher-volume White Shrimp should be directed toward aquaculture feed concentrates. Overcoming pervasive constraints—especially the high > 88 % Moisture content and lack of cold storage—mandates the immediate deployment of localized solar drying technologies to transform this biomass into stable, high-value ingredients. 
Co-Authors A.D., Razafindrazanakolona Allain, Solofomiarana Rapanoel Bruno Andrianirina, Randriantsimbazafy Antoine, Herisoa Ashande, Colette Masengo Aurelien, Mandimbiiharison Bodomalala, Razanadrasoa Vololonome Boni, Randrianjaka Bruno, Razanamparany Christian, Manjovelo Sambany Daniel José, Razakatiana Andriamampitasoa Daniel, Razafindrazanakolona Daniel, Razafindrazanakolona Andriamanjato Daniel, Razafindrazanakolona Andrianjafimanjato Dyno, Nambavelo Elidon, Ramahandry Jean Erménégilde, Ralaibia Boniface Fabri, Ralaivaon-dratsitonta Jumaël Edith Fifaliana, Rasolofoson Joharisoa Josette, Ramarolahy Patricia Koto-Te-Nyiwa, Ngbolua Jean Paul Mamy, Andrianarijaona Marie, Tolojanahary Jean Myriam, Andrianjary Narindra, Ratiarimanajatovo Narindra, Ratiarimananjatovo Ngbolua, Koto-te- Nyiwa Ngbolua, Koto-te-Nyiwa Nicole, Ravelomanantsoa Ramanambe Nyiwa, Ngbolua Koto-Te- Odon, Fetisondraibe Zafimamonjy Louis Pierre, Rakotomamonjy Ratsimbazafy, Ratsimbazafy Razafimahatratra, Razafimahatratra Razanamiariso, Rakotomalala Nivomboahangy Riana, Razafindrakoto Fanoina Ny Rija, Rabearisoa Solotiana Rindra, Rabarison Robert, Rejo Rodin, Raberanto Rokiman, Letsara Rolland, Rakotonindriana David Ruphin, Fatiany Pierre Sahala, Rakotomalalaridio Antsa Sambany, Manjovelo Christian Samuël, Randrianasolo Fenosoa Seheno, Randrialiva Soanirina Tahina, Rabeharitsara Andry Tojoniaina, Ramiadamahefa Tsaroana, Verofaniry Nomena Tsimy, Andriantsilaniarivo Tsirombahy, Soja Lahara Ulrich, Fidelio Arnold Wega, Razafindramanga Athou Zo, Ratsimandisa Haritiana