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All Journal Journal of Applied Geospatial Information Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Ilmiah Aquinas Agroprimatech Jurnal Pendidikan dan Konseling IJOEP : International Journal of Ecophysiology Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Abdidas Jurnal Inovasi Pendidikan dan Sains SENADA : Semangat Nasional Dalam MengabdI MOVE: Journal of Community Service and Engagement Life Science Jurnal Ilmiah Multidisiplin (JUKIM) Journal of Research in Science and Mathematics Education Kreativitas Pada Pengabdian Masyarakat (Krepa) SENADA : Semangat Nasional Dalam Mengabdi Tut Wuri Handayani : Jurnal Keguruan dan Ilmu Pendidikan Kanigara Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI
Srinatalia Silaen
Universitas HKBP Nommensen
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : Journal of Applied Geospatial Information

 1 
The Effect of Water Quality on Growth of Microalgaes Chlorella pyrenoidosa Srinatalia Silaen; Welmar Olfan Basten Barat
Journal of Applied Geospatial Information Vol 6 No 2 (2022): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v6i2.4396

Abstract

The diversity of microalgae on earth is very high, the high diversity of microalgae allows us to obtain microalgae that have the potential to produce large amounts of oil. In addition, the use of microalgae as a source of biodiesel does not interfere with the food supply. This is because microalgae do not compete with food. The results of the analysis showed that the parameters that passed the water quality standard were BOD in the range of 0.990-90.76 mg/l, COD in the range of 3.093 -283 mg/l, and phosphate in the range of 0.01-0.21 mg/l. Judging from the color and smell, the waters that are closer to the cages will be greener in color accompanied by the smell of fish mixed with fishy feed and feel thick. COD content ranged from 3.093 mg/l-269.5 mg/l. This is caused by the high concentration of organic matter in the waters. The quality of the waters of Lake Toba which is classified as not good is the measurement of color, smell, taste, BOD, COD, and Phosphate in the waters. Which are classified as good temperature, turbidity, pH, Ammonia, and Nitrate. The level of fertility of the waters of Lake Toba in terms of the abundance of phytoplankton is included in the fertile category. If it is categorized at the level of pollution through the diversity index, then the waters are included in the moderately polluted category.
Utilization of Palm Oil Mill Effluent (POME) Liquid Waste to Increase Density and Growth Rate of Microalgae Chlorella Pyrenoidosa Welmar Olfan Basten Barat; Srinatalia Silaen; Ewin Handoco S
Journal of Applied Geospatial Information Vol 7 No 1 (2023): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v7i1.5236

Abstract

Microalgae Chlorella pyrenoidosa is a microalgae that has the potential to have various roles, especially as a bioabsorbant for organic waste. The growth of the oil palm plantation industry is also directly proportional to the increase in waste generated from the CPO production process, namely POME Waste (Palm Oil Mill Effluent). POME waste has a high nutrient content so that it can be utilized by the microalgae Chlorella pyrenoidosa. This study aims to utilize POME waste to increase the growth of Chlorella pyrenoidosa. Microalgae cultivation had a significant effect on the 1:2 treatment and 1:3 treatment when compared to the control cultivation medium with the highest cell density values ​​of 263(106cells/ml) and 279(106cells/ml) respectively. Injection of POME waste into microalgae rearing media will have an impact on increasing the growth of Chlorella pyrenoidosa microalgae.
Arthropoda Community Structure in Conservation Forest and Oil Palm Plantation in Java Tongah Village Area, Hatonduhan District, Simalungun Regency Silaen, Srinatalia; Barat, Welmar Olfan Basten
Journal of Applied Geospatial Information Vol 7 No 2 (2023): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v7i2.6258

Abstract

The research about composition and structure of Arthropoda community was conducted at oil palm plantations Arthropoda were collected at oil palm plantation, conservasion forest and forest edge sites (between conservation forest and plantation area) by survey method with systematic random sampling for arthropoda in litter and soil. A total of four Arthropoda species that belonging to 2 orders, 3 families, 4 general and 57 individuals was collected. The highest number of individuals Isotomiella sp. (14 ind) family Isotomidae. Arthropoda community composition consists of 3 families & 4 species: Neanuridae (Lobella sp.), Brachystomellidae (Brachystomella sp.) & Isotomidae (Isotomiella sp. & Folsomides sp.), Arthropoda community structure The highest density is in the litter location I (16 ind / m2) while the lowest density is in location III (3.56 ind / m2). The highest soil density is in location I (4,538.56 ind / m3) & the lowest density is in location III (789,761 ind / m3). The highest relative density is location III (100%) & the lowest relative density is found in location I (litter, 5.8%) & (soil, 8.9%). The highest Shannon-Wiener diversity index, both litter and soil, were found in location I (litter 1.28) & (soil, 1.38) and the lowest diversity index was found in location III (0). The highest similarity index for Sorensen was location III (75.71%) and the lowest was the comparison between locations II & I (20%).
Effect of Premna pubescens Ethanol Extract on Erythrocyte Count and Kidney Histology in Rattus norvegicus L Silaen, Srinatalia
Journal of Applied Geospatial Information Vol. 8 No. 2 (2024): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v8i2.8973

Abstract

Premna pubescens (wild leaves) has a rich history of traditional medicinal use, including as an anti-inflammatory, antioxidant, and anticancer agent. This study aimed to investigate the potential therapeutic effects of the ethanol extract of Premna pubescens leaves on erythrocyte count and kidney histology in Rattus norvegicus L. Twenty-four male Wistar rats were divided into four groups: control, ethanol extract of wild leaves, Sheep Red Blood Cell (SRBC) antigen, and combined ethanol extract with SRBC. The experiment involved administering wild leaf ethanol extract at 250 mg/kg BW for 30 days, followed by SRBC injection on days 8 and 15. Erythrocyte counts were measured, and kidney histological changes were observed.The results showed a significant increase in erythrocyte count in the A1 (7.42 ± 0.35 million cells/μl) and A3 groups (7.77 ± 0.23 million cells/μl) compared to the control group (7.05 ± 1.07 million cells/μl) and SRBC-treated rats (6.61 ± 0.18 million cells/μl). Histological analysis of the kidneys revealed clearer glomeruli and tubules, with reduced signs of inflammation and bleeding compared to the SRBC-treated group. These findings suggest that Premna pubescens extract has potential therapeutic effects on erythrocyte count and renal tissue, likely due to its antioxidant and anti-inflammatory properties. In conclusion, the ethanol extract of Premna pubescens shows promise in positively affecting erythrocyte count and mitigating kidney damage, demonstrating its potential as a therapeutic agent.
Co-Authors Apriani Sijabat Butar, Angel Gracia Butar Cheryl Grace Pratiwi Rumahorbo Christina Sitepu Desi Ester Idawati Sitohang Eva Pasaribu Eva Pasaribu Florantina Hasugian Good Govermance Manihuruk Grace Adinda Silalahi Handoco, Ewin Hani Jesika Purba Ida Ayu Putu Sri Widnyani Leonita Maria E Manihuruk Limbong, Agneso Feronika Lingga, Iyana Moi Marbun, Yanty Maria Rosmauli Marlina Agkris Tambunan Monalisa Frince S Pasaribu, Eva Purba, Yoel Putri Siregar Reja J Pasaribu Riama Judika Manik Rumahorbo, Cheryl Grace Pratiwi Sianturi, Monalisa Frince Sidabutar, Yanti Arasi Sijabat, Osco Parmonangan Silaban, Irving Silalahi, Mastiur Verawaty Simanjuntak, Tarida Simanjuntak, Tarida Alvina SIMAREMARE, JUNI AGUS Sinaga, Triwanci Sinarma Sitio Tambunan, Marlina Agkris Welmar Olfan Barat, Welmar Olfan Yoel Purba Yoel Purba