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International Journal of Science and Environment
Published by CV. Inara
ISSN : -     EISSN : 28090551     DOI : https://doi.org/10.51601/ijse.v2i4
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics
International Journal of Science and Environment (IJSE) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Science and Environment . Original theoretical work and application-based studies, which contributes to a better understanding all fields of Science and Environment. The aim and scope of the journal Chemistry, Chemical Analysis, Physical Chemistry, Physics, Biology, Ecology, Biodiversity, Zoology, Biochemistry, Mathematics, Environmental Science, Agriculture, Environment, Forestry.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 375 Documents
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The Role Of Inter-Sectors In Agroforestry Development In The Community Forest Environment, Pacitan District Susanto, Anang; Winarni Susanto, Marti
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.57

Abstract

Communities around the forest need to be encouraged in the development of forestry plants by the community either independently or with the assistance—of the government so that environmental sustainability can be adequately controlled. The development system carried out by the community, in general, is a hybrid system or better known as the agroforestry system. This study aims to identify sectors related to efforts to develop forestry plants.airly well-established economic condition. Development of forestry plants with this system . However, few people also develop a monoculture system, especially those with large enough land and who do not depend on the ground. Building role synergy between sectors supporting the development of forestry plantations is urgently needed to increase the quantity and quality of raw materials to meet the needs of the timber industry, both locally and nationally. Three critical sectors that must synergize in supporting the development of forestry plantations by the community are research and educational institutions, the government, and the market (industry). These three sectors are expected to be able to build attractive incentives for the community so that the community continues to preserve timber plants. Research and educational institutions can provide information and technology related to efforts to increase forestry plant production. Both information and technology from social, economic, and silvicultural or cultivation aspects. Information and technology produced by these research and educational institutions can be used as input and consideration for the government in formulating programs and policies related to developing timber plantations on private land. Through the formulation of its policies and work programs, the government is expected to initiate, facilitate and assist the community in developing forestry plants. Furthermore, the market sector, especially the timber industry, must be encouraged to create a conducive post-harvest climate so that the community continues to be motivated to increase the production of raw wood materials.  
Analysis Of Saponin Content in Ruruhi Plant (Syzygium polycephalum Merr) in Kendari City, Southeast Sulawesi Ode Nanang Trisna Dewi, Wa; Dewi, Fitria; Ardiansyah, Ardiansyah; Aswad, Aswad; Mantasia, St.
International Journal of Science and Environment (IJSE) Vol. 3 No. 1 (2023): February 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.58

Abstract

The Ruruhi plant (Syzygium polycephalum Merr.) is a local, unique and flowering plant belonging to the Myrtaceae tribe, the guava group, which disperses by seeds. The purpose of this study was to determine the saponin content in leaf of Ruruhi plant (Syzygium polycephalum Merr.) in Kendari City, Southeast Sulawesi Province. The analysis method uses UV-Vis Spectrophotometry. The results showed that the mature leaf of the Ruruhi plant contained 0,825 mg/10 ml of saponins and 0,566 mg/10 ml of young leaf. Thus there was a difference between the saponin content in young leaf and mature leaf, respectively 0,566 mg/10 ml and 0,825 mg/10 ml.
Analysis Of Macro Nutrients Of Chicken Manure Decomposed Bytrichoderma Viridemushrooms With Different Storage Lengths Erwin Harahap, Darmadi; Hardianti Wahyuni, Siti; Darwis, Muhammad; Fajrin Harahap, Muharram; Maulana, Mizan
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.60

Abstract

Trichoderma spp. It is an antagonistic fungus that is very important for biodiversity control. This research was conducted at the Laboratory of the Faculty of Agriculture, Universitas Graha Nusantara Padangsidimpuan, with a height of + 480 m above sea level, in August to September 2018. This study only analyzed the nutrient content contained in the finished compost consisting of five compost treatments, namely: A0 = Chicken manure decomposed by T.viride for 0 weeks, A1 = chicken manure decomposed by T. viride for 1 week, A2 = chicken manure decomposed by T. viride for 2 weeks, A3 = chicken manure decomposed by T. viride for 3 weeks, A4 = chicken manure decomposed by T. viride for 4 weeks. Of the five compost treatments then analyzed the nutrient content which includes N, P, K Total in the Laboratory of Soil Science ANDALAS Padang West Sumatra. The results showed that based on the results of laboratory analysis it can be known that compost with the addition of good trichodermaviride decomposer is good by 4 weeks of storage (A4) i.e. organic B = 45.70 %, organic C = 91.03 , Ratio C / N = 11. 13 %, N Total = 3.51 %, P Total = 3.41 % , K Total = 1.58 %.
Physicochemical Characterization Of Argentinian Honeys From The Phytogeographic Provinces Pampeana, Espinal And Monte Based On Their Sugar Profiles And Quality Parameters Aubone, Inés; Amadei Enghelmayer, Marisa; Ali Haji, Akram
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.64

Abstract

The honeys from the Phytogeographic Provinces (PP) of the south of Buenos Aires province (Argentina) were characterised by the sugar composition and physicochemical parameters used for honey quality control. A large set (n=329) of traceable raw honey samples obtained from beekeepers were analysed and met the specifications of the national and/or international standards for the evaluated parameters, which denoted their blossom origin and confirmed their authenticity, good maturity and freshness. The influence of flora and the pedoclimatic conditions of each phytogeographical region, as well as their beekeeping practices, on the physical and chemical properties of honey allowed its characterization. Thus, the honeys from the southeast of Buenos Aires province were characterized by higher contents of moisture, fructose, maltose, erlose, hydroxymethylfurfural (HMF) and ash, pH and electrical conductivity (EC) and slightly lighter colours; while southwest honeys showed higher free acidities, sucrose content and ºBrix values. Honeys from the PP Espinal exhibited characteristic lower contents of fructose, HMF and ash and EC values, and larger amounts of sucrose. Honeys from the PP Monte presented typical lower moisture contents and slightly darker colours. Honeys from the PP Pampeana were typified by higher amounts of fructose.
The Potential Of Mollusca Communities In Seagrass Ecosystems On Buntal Island Waters West Seram Regency, Maluku Province Sangaji, Masudin; Hulopi, Mahriyana; M.F Sahetapy, Jacqueline; Tasmiah Sirajuddin, Nur; F. Lokollo, Frijona; Lestari, Febrianti
International Journal of Science and Environment (IJSE) Vol. 3 No. 3 (2023): August 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i3.65

Abstract

Molluscs, especially bivalves and gastropods, make an important contribution to the formation of food chains in seagrass ecosystems. In addition, bivalves and gastropods are often used as biological indicators of aquatic environmental quality in seagrass ecosystems. The close relationship between seagrass beds, bivalves and gastropods can be seen in the expanse of seagrass ecosystems found on Buntal Island which is located in Kotania Bay, West Seram Regency. The potential of bivalves and gastropods, such as the diversity and community structure found in Buntal Island waters, is very important to study because the information is limited. This study aims to determine the diversity of bivalves and gastropods in the seagrass ecosystem of Buntal Island and to determine the community structure of bivalves and gastropods which include; density and relative density, abundance and relative abundance, and frequency of presence and relative frequency of presence. The research method used is quantitative. The results of the analysis of the potential of molluscs showed that the diversity of the composition of mollusc taxa found in seagrass ecosystems on Buntal Island was divided into 2 classes, 25 families, 37 genera, 52 species with a total of 3291 individuals. The mollusc with the highest score in terms of density, abundance, and frequency of presence belonged to Nassarius globossus.
Isolation And Characterization Of Phosphate Solubilizing Fungi From Fruit And Vegetable Peel Waste Compost Fertilizer Desi Sasmita, Sri Wulan; Hilwa, Walida; Badrul Ainy , Dalimunthe; FS, Harahap
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.66

Abstract

Phosphate solubilizing fungi are fungi that can convert phosphate in soil from compound form (almost insoluble) into ionic form (easily soluble) so that it can be utilized by plants. The purpose of this study was to determine the isolation and characteristics of phosphate solubilizing fungi isolates found in fruit and vegetable peel waste compost. This research was conducted in January 2023 until completion in the Laboratory of the Faculty of Science and Technology, Labuhanbatu University. This research was carried out by isolating fungi from municipal waste compost, characterizing morphology and the ability to dissolve phosphate and molecular identification. Furthermore, the data were analyzed descriptively based on the research results obtained. There were 4 isolates of phosphate solubilizing fungi that were able to form clear zones on Pikovskaya media with different morphological characteristics and ability to dissolve phosphate. The largest clear zone diameter was shown in isolate A3 of 3 cm which is Aspergillus niger fungus.
Optimization Of Biosorption Conditions For Crude Oil Spills Using Acetylated And Unacetylated Biosorbents Derived From Cissus Populnea Leaves Stem And Roots Tari Honda, Joel; M. Yelwa, J.; Ulteino, Aeneas N.; Abudllahi, S.; A. S, Umar,; Anchau, Husaina G.; Michael Kalu, Kalu
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.67

Abstract

The biosorption of crude-oil spill using acetylated and unacetylated Cissus populnea leave, stem and root biosorbents was investigated in this study. The acetylated and unacetylated biosorbents was characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The FTIR spectra confirmed the formation of the acetyl group while SEM morphological analysis of acetylated biosorbent showed rough macrostructure surfaces with large hollows between the strand. The effectiveness of the biosorbents was evaluated based on their ability to remove crude oil from an aqueous solution. The results sho wed that the acetylated biosorbents had higher oil sorption capacities compared to the unacetylated biosorbents. The highest oil sorption capacity was observed for the acetylated stem biosorbent, which had a sorption capacity of 30.09 g/g. The unacetylated leaves biosorbent had the lowest oil sorption capacity, with a sorption capacity of 20.4 g/g. The leaves and roots biosorbents showed intermediate oil sorption capacities. The study also showed that the biosorption capacity of the biosorbents increased with increasing initial oil concentration and contact time, while decreasing with increasing biosorbent particle size. The results suggest that acetylated Cissus populnea biosorbents have potential as an effective and low-cost alternative for the remediation of crude-oil spills.
Conditions Of Phytoplankton Community Structure In Lake Toba Ajibata, Toba Samosir Regency Sinambela, Masdiana; Simangunsong, Simangunsong; Harahap, Arman
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i2.68

Abstract

The research was conducted with the aim of knowing the condition of the phytoplankton community structure based on diversity index criteria in the waters of Lake Toba, Ajibata District, Toba Samosir Regency. This research was conducted in February -March 2021. This type of research was ex post de facto, carried out at 5 observation stations with 3 repetitions. Phytozooplankton samples were taken using Net plankton No. 25. Identification of phytoplankton was carried out in the Biology Laboratory of the Faculty of Mathematics and Natural Sciences, Medan State University. Phytoplankton found in 12 genera, namely: Achnantes, Aulacoisera, Encyonema, Claphora, Stigeoclonium, Dictyosphaerium, Staurastrum, Monoraphidium, Oscillatoria, Microcytis, Nostoc, and Chroococcus. The diversity index at Station I was 1.35, II was 1.36, III was 1.31, IV was 1.36, and V was 1.72. The condition of the phytoplankton community structure is stable in the moderate category. The temperature of the waters ranges from 22°C-25°C, the light transparency to the waters ranges from 4-4.5 m, the pH of the waters ranges from 7.36-8.85, the DO of the waters ranges from 6.84-8.25 mg/l, the BOD of the waters ranged from 1.01 to 3.42 mg/l. Lake Toba water quality based on physical and chemical parameters is within the normal range.
Estimation Of Soil Erodibility On Different Land Covers In Urung Kompas Village, South Rantau District, Labuhanbatu Regency Yuli Ferdiansyah, Wan; Syawal Harahap, Fitra; Walida, Hilwa; Ayu Putri Septiyani, Ika
International Journal of Science and Environment (IJSE) Vol. 3 No. 3 (2023): August 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i3.73

Abstract

There will be widespread damage to the land as a result of land degradation, particularly to forest land. Changes in land use from extremely durable vegetation to escalated agrarian land make the dirt all the more handily disintegrated. One of the deciding variables of disintegration is soil disintegration and soil cover vegetation. Soil erodiability is the typical measure of soil lost every year per unit of the file, while the land cover is helpful for safeguarding the dirt from the danger of harm by disintegration and further developing soil conditions. The exploration was done from October 2022 to June 2023. In January 2013, field sampling was carried out. The technique utilized in this study was the review strategy and the purposive examining technique. Choose three points of observation. Then, in the laboratory, data analysis and field observation. Assessment of soil erodibility is completed by taking soil tests, deciding soil structure, soil porousness in the field, and deciding soil surface and natural matter for examination in the research center. Distinguishing proof of disintegration by taking documentation of kinds of disintegration that alludes to references and realities tracked down in the field. To decide the worth of erodibility (soil aversion to disintegration) utilizing a nomograph (soil erosibility). Results of the Study Soil erodibility on oil palm land in the Urung Kompas Village was low to medium, ranging from 0.17 to 0.26. The research site on oil palm land in the Urung Kompas subdistrict has five types of erosion: trench erosion, splash erosion, sheet erosion, furrow erosion, and landslides.
Differences In Nutrient Content In Peat Land And Permanent Production Forest Area In Sei Paham Village, Sei Kepayang District, Asahan District Agus Suryandi, Fauzi; Walida, Hilwa; Rizal, Khairul; Ainy Dalimunte, Badrul
International Journal of Science and Environment (IJSE) Vol. 3 No. 3 (2023): August 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i3.74

Abstract

Peat soils are classified as marginal soils and are prone to disturbance, so efforts to increase land productivity must be followed by efforts to prevent ecosystem damage. This study aims to analyze differences in nutrient content in peat land and permanent production forest areas in Sei Paham Village, Sei Kepayang District, Asahan District . Taking 5 soil sample points was carried out using a proposive random sampling method . The soil sample is then placed in a sterile plastic bag and immediately taken to the laboratory for analysis. The parameters of the soil analysis carried out included pH , C-total, N, P, K, Ca, Na, Mg, CEC and C/N. The results showed that in permanent production forest, the nutrient content was higher than peatland in all parameters of soil chemical analysis.

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