JURNAL ILMIAH SAINS

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ISSN / EISSN : 1412-3770 / 2540-9840
Published by: Universitas Sam Ratulangi (10.35799)
Total articles ≅ 276
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Khoirul Anwar, Mardiyono Mardiyono, Nuraini Harmastuti
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 8-16; https://doi.org/10.35799/jis.v22i1.35537

Abstract:
Uji karakteristik pektin kulit buah sukun (Artocarpus altilis (Park.) Fosberg) dan uji kemampuan adsorpsi logam berat pada limbah laboratorium stifera Semarang. Tujuan penelitian ini yaitu menentukan kondisi optimum pektin kulit buah sukun dalam menyerap ion Pb2+ dan Cd2+ terhadap parameter variasi berat, lama waktu kontak, pH dan ukuran partikel serta menentukan persentase penurunan kadar ion Pb2+ dan Cd2+ pada limbah cair laboratorium farmasi. Metode isolasi pektin dilakukan dengan menggunakan metode konvensional dan dilakukan pengujian karakteristik pektin yaitu uji kadar air, kadar abu, berat ekivalen, kadar metoksil, kadar galakturonat, derajat esterifikasi, identifikasi FTIR dan GC-MS. Uji kemampuan adsorpsi logam berat dengan 4 variasi optimasi yaitu berat pektin yaitu 100, 300 dan 500 mg; lama waktu kontak 30, 60, 90 dan 120 menit; pH 4, 5, 6 dan 7; variasi ukuran partikel 80, 100 dan 120 mesh, metode analisis menggunakan alat spektrofotometri serapan atom. Hasil penelitian menunjukkan bahwa berat optimum terjadi pada 500 mg, lama waktu kontak 90 menit, pH 5 dan ukuran partikel 120 mesh baik ion Pb2+ dan Cd2+. Hasil tersebut diaplikasikan pada limbah laboratorium farmasi dan didapatkan rata-rata persentase penurunan ion logam Pb2+90,53% dan ion Cd2+ 91,51%. Kata kunci: Adsorpsi; kulit buah sukun; pektin Characteristics of Breadfruit Peel Pectin (Artocarpus altilis (Park.) Fosberg) and Ability Test of Heavy Metal Adsorption in Waste Stifera Laboratory SemarangABSTRACT Characteristic test of pectin of breadfruit peel (Artocarpus altilis (Park.) Fosberg) and test of heavy metal adsorption ability in laboratory waste Stifera Semarang. The aim of this study was to determine the optimum conditions for pectin to absorb Pb2+ and Cd2+ ions on the parameters of weight variation, contact time, pH and particle size and to determine the percentage decrease in Pb2+ and Cd2+ ion levels in pharmaceutical laboratory wastewater. Pectin isolation method was carried out using conventional methods and the characteristics of pectin were tested, namely water content, ash content, equivalent weight, methoxyl content, galacturonic content, esterification degree, FTIR identification, GC-MS. Heavy metal adsorption ability test with optimization variations, namely the weight of pectin is 100, 300, 500 mg; length of contact time 30, 60, 90, 120 minutes; pH 4, 5, 6, 7; variation of particle size 80, 100, 120, analytical method using atomic absorption spectrophotometry. The results showed that the optimum weight occurred at 500 mg, contact time of 90 minutes, pH 5 and particle size of 120 both Pb2+ and Cd2+ ions. These results were applied to pharmaceutical laboratory waste and the average percentage reduction of metal ions Pb2+ was 90.53% and Cd2+ ions were 91.51%. Keywords: Adsorption; breadfruit peel; pectin
Meriam Gratia Gabriel Wowor, Josua Tampara, Edy Suryanto, Lidya Irma Momuat
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 75-86; https://doi.org/10.35799/jis.v22i1.38954

Abstract:
Penelitian ini bertujuan untuk mengetahui kandungan metabolit sekunder yang terdapat pada ekstrak etanol daun kalu burung, membuat masker peel-off berbahan aktif ekstrak etanol daun kalu burung dan menguji aktivitas antibakteri dari ekstrak etanol dan sediaan masker peel-off. Metode yang digunakan adalah preparasi sampel, ekstraksi, uji senyawa fitokimia, pembuatan masker peel-off, uji sifat fisik dan kimia masker meliputi uji organoleptik, stabilitas fisik, lama mengering dan pH, serta uji antibakteri. Hasil penelitian menunjukkan bahwa serbuk daun kalu burung memiliki kadar air sebesar 6.13% dan rendemen ekstrak etanol sebesar 10.34%. Ekstrak etanol daun kalu burung mengandung senyawa metabolit sekunder flavonoid, saponin, tanin, steroid dan alkaloid pada uji Dragendorff. Sediaan masker peel-off memiliki karakteristik fisik dan kimia yang aman digunakan pada kulit. Masker peel-off memiliki kisaran pH antara 5-6 dan lama mengering dengan kisaran antara 23-29 menit. Zona hambat pertumbuhan bakteri untuk ekstrak etanol daun kalu burung sebesar 12.33 mm dan masker peel-off mengandung daun kalu burung sebesar 9.67 mm. Penelitian ini menyimpulkan bahwa daun kalu burung mengandung metabolit sekunder yang memiliki aktivitas antibakteri baik dalam ekstrak etanolnya maupun dalam sediaan masker peel-off ekstrak dan mempunyai sifat fisik dan kimia yang aman. Kata kunci: antibakteri; fitokimia; kalu burung; masker peel-off Phytochemical Screening and Antibacterial Test of Peel-Off Mask with Ethanol Extracts of Kalu Burung Leaves (Barleria prionitis L.). ABSTRACT This research aims to determine the content of secondary metabolites contained in the ethanol extract of Kalu Burung leaves, to make peel-off masks from ethanol extract of Kalu Burung leaves and to test the antibacterial activity of ethanol extracts and peel-off masks. The methods used were sample preparation, extraction, testing of phytochemical compounds, making peel-off masks, testing the physical and chemical properties of masks such as organoleptic tests, physical stability, drying time and pH, as well as antibacterial tests. The results showed that the Kalu Burung leaf powder had a moisture content of 6.13% and an ethanol extract yield of 10.34%. The ethanol extract of Kalu Burung leaves contains secondary metabolites of flavonoids, saponins, tannins, steroids and alkaloids in the Dragendorff test. The peel-off mask has physical and chemical characteristics which are safe to use. Peel-off masks have a pH range of 5-6 and drying time of 23-29 minutes. The inhibition zone of bacterial growth for ethanol extract was 12.33 mm and the peel-off mask containing Kalu Burung leaves was 9.67 mm. In conclusion, Kalu Burung leaves contain secondary metabolites that have antibacterial activity both in the ethanol extract and in the peel-off extract mask with safe physical and chemical properties. Keywords: antibacterial; kalu burung leaves; peel-off mask; phytochemistry
Vistarani Arini Tiwow, Meytij Jeanne Rampe, Sulistiawaty Sulistiawaty
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 60-66; https://doi.org/10.35799/jis.v22i1.38681

Abstract:
Keberadaan Sungai Tallo sangat penting bagi industri dan masyarakat yang berada di daerah aliran sungai. Namun, aktivitas sosial-ekonomi tidak dibarengi dengan pengelolaan sampah yang bertanggung jawab. Dengan demikian, secara umum sungai tercemar oleh polutan seperti logam berat. Oleh karena itu, perlu dilakukan monitoring sebagai langkah pengendalian kualitas Sungai Tallo untuk menghindari kondisi yang semakin buruk. Tujuan penelitian ini yaitu untuk meningkatkan pemahaman tentang hubungan antara parameter magnetik dan kandungan logam berat pada sedimen Sungai Tallo. Metode yang digunakan adalah metode magnetik lingkungan menggunakan parameter suseptibilitas magnetik. Selanjutnya, dilakukan pengujian X-Ray Fluorescence (XRF) untuk mengetahui konsentrasi unsur logam berat. Hasil menunjukkan Suseptibilitas magnetic sedimen Sungai Tallo berkisar 47,7 sampai 968,7 × 10-8 m3/kg. Suseptibilitas magnetik berhasil mengidentifikasi kelimpahan logam berat pada Sungai Tallo. Fe memiliki konsentrasi yang lebih tinggi dibandingkan Cr, Mn, dan Zn. Korelasi antara unsur logam berat Fe, Mn, dan Zn dengan suseptibilitas magnetik diperoleh korelasi positif kuat dimana unsur logam berat berkontribusi terhadap suseptibilitas magnetik. Studi ini mendukung parameter magnetic seperti suseptibilitas magnetik dapat berpotensial digunakan sebagai indikator polusi logam berat pada Sungai Tallo. Kata kunci: Logam berat; magnetik lingkungan; suseptibilitas magnetik Magnetic Susceptibility and Heavy Metal Concentration of Tallo River Sediments in Makassar ABSTRACT The existence of the Tallo River is very important for industry and people living in the watershed. However, socio-economic activities are not accompanied by responsible waste management. Thus, rivers are generally polluted by pollutants such as heavy metals. Therefore, monitoring is necessary as a measure to control the quality of the Tallo River to avoid worsening conditions. The purpose of this study was to improve understanding of the relationship between magnetic parameters and heavy metal content in Tallo River sediments. The method used was the environmental magnetic method using magnetic susceptibility parameters. Furthermore, X-Ray Fluorescence (XRF) was tested to determine the concentration of heavy metal elements. The results showed that the magnetic susceptibility of the Tallo River sediments ranged from 47.7 to 968.7 × 10-8 m3/kg. Magnetic susceptibility identified the abundance of heavy metals in the Tallo River. Fe has a higher concentration than Cr, Mn, and Zn. The correlation between heavy metal elements Fe, Mn, and Zn with magnetic susceptibility showed a strong positive correlation where heavy metal elements contribute to magnetic susceptibility. This study supports magnetic parameters such as magnetic susceptibility that can potentially be used as an indicator of heavy metal pollution in the Tallo River. Keywords: Environmental magnetic; heavy metal; magnetic susceptibility
Eka Susanti Hanhadyanaputri, Yuliana Purwaningsih, Erwin Indriyanti
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 23-30; https://doi.org/10.35799/jis.v22i1.37492

Abstract:
Tujuan penelitian ini yaitu untuk mengetahui reaksi amidasi asam sinamat dengan N, N-dietil amina menggunakan katalisator asam borat dan mengetahui aktivitas antikolesterol dari produk senyawa hasil amidasi. Reaksi amidasi asam sinamat dengan N, N-dietil amina menggunakan variasi konsentrasi (% mol) asam borat sebagai katalis yaitu 5, 10, 15, 20 dan 25%. Hasil reaksi amidasi dikarakteristik menggunakan FT-IR, 1H-NMR dan 13C-NMR. Aktivitas antikolesterol dianalisis menggunakan metode Liebermann-Burchard. Hasil penelitian menunjukkan bahwa produk amidasi asam sinamat yaitu 20,47%, 22,99%; 23,37%; 26,77% dan 30,28% untuk variasi mol asam borat secara berturut-turut 5%, 10, 15, 20 dan 25%. Hasil karakterisasi dengan FT-IR, 1H-NMR dan 13C-NMR menunjukkan bahwa produk hasil amidasi berupa senyawa N, N-dietil sinamamida. Senyawa hasil amidasi mampu menurunkan kadar kolesterol sebesar 5,24%; 27,18% dan 13,22% dengan konsentrasi senyawa berturut-turut sebesar 50, 100, dan 150 ppm. Semakin besar persen mol katalisator asam borat yang digunakan, semakin besar senyawa hasil amidasi yang diperoleh. Produk hasil amidasi yang diperoleh yaitu senyawa N, N-dietil sinamamida yang berpotensi sebagai antikolesterol dengan aktivitas optimum pada konsentrasi 100 ppm. Kata kunci: Amidasi; antikolesterol; asam borat; asam sinamat; sinamamida Mole Variation of Concentration Boric Acid in The Amidation Reaction of Cinnamic Acid and Its Potential as Anticholesterol  ABSTRACT The aims of this study to determine the amidation reaction of cinnamic acid with N, N-diethylamine using a boric acid catalyst and to determine the anticholesterol activity of the amidation product. The amidation reaction of cinnamic acid with N, N-diethyl amine using various concentration (% mole) of boric acid as a catalyst, namely 5, 10, 15, 20, and 25%. The amidation reaction results were characterized using FT-IR, 1H-NMR, and 13C-NMR. The anticholesterol activity was analyzed using the Liebermann-Burchard method. The results showed that the amidation products of cinnamic acid were 20.47%, 22.99%; 23.37%; 26.77%, and 30.28% for variations in moles of boric acid 5%, 10, 15, 20, and 25%, respectively. The results of characterization using FT-IR, 1H-NMR and 13C-NMR showed that the amidation product was N, N-diethyl cinnamamide. The compound resulting from the amidation was able to reduce cholesterol levels by 5.24%; 27.18%, and 13.22% with compound concentrations of 50, 100, and 150 ppm, respectively. The greater the mole percent of boric acid catalyst used, the greater the amidation product obtained. The amidation product formed is N, N-diethyl cinnamamide which has the potential as an anticholesterol with optimum activity at a concentration of 100 ppm. Keywords: Amidation; anticholesterol; boric acid; cinnamic acid; cinnamamide
Hajrul Nurtami Dinata, Henri Henri, Wahyu Adi
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 49-59; https://doi.org/10.35799/jis.v22i1.37694

Abstract:
Lamun merupakan tumbuhan berbunga (Angiospermae) yang memiliki rhizoma daun dan akar sejati yang dapat hidup terendam di dalam air laut. Gastropoda merupakan anggota moluska, dimana sebagian besar memiliki tubuh yang dilindungi oleh cangkang. Penelitian ini bertujuan untuk menganalisis kelimpahan dan pola sebaran gastropoda pada ekosistem padang lamun pesisir Pulau Semujur Kabupaten Bangka Tengah, Bangka Belitung. Penelitian ini dilaksanakan pada perairan Pulau Semujur Kabupaten Bangka Tengah dengan empat titik arah mata angin sekitar Pulau Semujur. Penelitian ini menggunakan metode transek kuadrat. Berdasarkan hasil penelitian gastropoda yang ditemukan sbanyak 9 famili dengan 19 spesies dan total seluruh individu sebanyak 1183 individu. Jenis gastropoda yang memiliki jumlah individu terbanyak adalah Cerithium traillii yang berjumlah 137 individu. Indeks keanekaragaman gastropoda di Pulau Semujur termasuk dalam kategori sedang. Pola sebaran gastropoda secara keseluruhan dengan kategori mengelompok. Jumlah spesies dan jumlah individu makroalga dipengaruhi oleh parameter fisik-kimia perairan yang meliputi kecepatan arus, suhu air dan salinitas. Hasil penelitian ini membuktikan bahwa keanekaragaman gastropoda dengan padang lamun saling berhubungan dan dapat dipengaruhi oleh faktor fisika kimia lingkungan tersebut. Kata kunci: Gastropoda; keanekaragaman; lamun; pola sebaran; Pulau Semujur Analysis of Gastropod Habitat in Seagrass Ecosystems in the Waters of Semujur Island, Bangka Belitung ABSTRACT Seagrass are flowering plants (Angiospermae) which has rhizoma leaves and true roots that can live submerged in sea water. Gastropods are members of mollusks, which the most body parts are protected by shell. This study aim is to analyze the abundance and distribution patterns of gastropods in the seagrass ecosystem of the coast of Semujur Island, Central Bangka Regency, Bangka Belitung. This research was conducted located in Semujur Island, Central Bangka Regency, four winds points of compass around the island. Quadratic transect method is used for this research. Based on the results of research found 9 families with 19 species and a total of 1183 individuals gastropods. Cerithium traillii (Sowerby II, 1855) is the highest number individuals founded which amount up to 137 individuals. Gastropod diversity index in Semujur Island is included to the medium category. Overall distribution pattern of gastropods with clustered categories The number of species and individual macroalgae are affected by the physical-chemical parameters of waters which include stream speed, temperature and pH. The results of this study prove that the diversity of gastropods with seagrass beds is interconncted and can be related by physical and chemical environmental factors. Keywords: Distribution pattern; diversity; gastropods; seagrass; Semujur Island
Febiyanti Alfiah, Almadayani Almadayani, Danial Al Farizi, Edy Widodo
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 1-7; https://doi.org/10.35799/jis.v22i1.35911

Abstract:
Keberadaan pandemi COVID-19 di Indonesia, mengakibatkan kemiskinan di Indonesia semakin tinggi terutama di Jawa Timur yang menjadi satu diantara provinsi lain dengan kasus COVID-19 tinggi di Indonesia. Tujuan penelitian ini yaitu mengetahui pengelompokan kabupaten/kota di Jawa Timur yang mempunyai kesamaan karakteristik berdasarkan indikator kemiskinan tahun 2020. Penelitian ini menggunakan data yang didapatkan dari Badan Pusat Statistik. Metode yang digunakan ialah metode k-medoids clustering yang merupakan metode partisi clustering guna pengelompokan n objek ke dalam k cluster. Berdasarkan hasil penelitian, diperoleh pengelompokan karakteristik masing-masing cluster yang dibentuk berdasarkan nilai indikator kemiskinan di Jawa Timur tahun 2020 sebanyak 2 cluster. Dimana 30 kabupaten/kota pada cluster 1 dan dan 8 kabupaten/kota pada cluster 2. Cluster 1 memiliki karakteristik Persentase Rumah Tangga yang Mempunyai Sanitasi Layak, Angka Harapan Hidup, dan Persentase Angka Melek Huruf Umur 15-55 Th tinggi. Sedangkan cluster 2 memiliki karakteristik Persentase Rumah Tangga Miskin Penerima Raskin, Persentase Penduduk Miskin, dan Persentase Pengeluaran Perkapita untuk Makanan dengan Status Miskin tinggi. Kata kunci: Clustering; Jawa Timur; K-medoids; kemiskinan K-Medoids Clustering Analysis Based on Poverty Indicators in East Java in 2020 ABSTRACT The existence of the pandemic COVID-19 in Indonesia has resulted in higher poverty in Indonesia, especially in East Java, which is one of the other provinces with high cases in Indonesia. The purpose of this study is to find out the grouping of regencies/cities in East Java that have similar characteristics based on the poverty indicators in 2020. This study uses data obtained from the Badan Pusat Statistik. The method used is k-medoids clustering method which is a clustering partition method for grouping n objects into k clusters. Based on the results of the study, it was found that the grouping of the characteristics of each cluster formed based on the value of the poverty indicator in East Java in 2020 was 2 clusters. Where 30 regencies/cities in cluster 1 and and 8 regencies/cities in cluster 2. Cluster 1 has the characteristics of the percentage of households that have proper sanitation, life expectancy, and a high percentage of literacy rates aged 15-55 years. While cluster 2 has the characteristics of the percentage of poor households receiving Raskin, the percentage of poor people, and the percentage of per capita expenditure on food with high poor status. Keywords: Clustering; East Java; K-Medoids; poverty
Moh. Awaludin Adam, Ach Khumaidi, Ramli Ramli, Yenny Risjani, Agoes Soegianto
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 31-39; https://doi.org/10.35799/jis.v22i1.36791

Abstract:
Banyaknya limbah cair yang terbuang ke aliran Sungai Wangi memberikan potensi pencemaran. Pencemaran berasal dari limbah pabrik yang sudah berlangsung sejak tahun 2015. Tujuan dari penelitian yaitu untuk melakukan analisis kualitas lingkungan Sungai Wangi dan menentukan indeks pencemarannya. Metode penelitian dilakukan dengan metode survey dan Pengambilan sampel air sungai dilakukan di sekitar aliran sungai Wangi, Desa Beujeng, Kecamatan Beji, Kabupaten Pasuruan. Pengambilan sampel dilakukan pada 3 (tiga) area yaitu area industri, area pemukimam dan area pertanian. Penelitian dilakukan pada bulan Juni 2020 sampai dengan bulan Juli 2021. Hasil penelelitian menunjukkan adanya kontaminasi logam berat pada Sungai Wangi yang mengandung Pb, Cd dan Hg. Kadar Pb, Cd dan Hg pada perairan rata-rata sebesar 0,031 ppm, 0,019 dan 0,009 ppm. Nilai tersebut sudah melampaui standar baku mutu PP 22/2021 kelas 3 yang diperbolehkan untuk aliran sungai. Sedangkan beberapa data parameter kualitas air lainnya dianalisis dengan menggunakan metode pollution index (PI). Metode ini digunakan untuk menentukan indeks pencemaran. Jumlah indeks pencemaran rata-rata (PIrata-rata) pada Sungai Wangi secara umum (area industri, pemukiman dan pertanian) adalah = 5,503. Indeks pencemaran ini menunjukkan kondisi Sungai Wangi termasuk pada klasifikasi “cemar sedang”. Kata kunci: Indeks pencemaran; logam berat; sungai wangi Environmental Pollution Index of the Wangi River, Beujeng Village, Beji District, Pasuruan Regency, East Java  ABSTRACT The amount of liquid waste that is wasted into the Wangi River stream provides the potential for pollution. Pollution comes from factory waste that has been going on since 2015. The purpose of this research is to analyze the environmental quality of the Wangi River and determine its pollution index. The research method was carried out by survey methods and river water sampling was carried out around the Wangi river flow, Beujeng Village, Beji District, Pasuruan Regency. Sampling was carried out in 3 (three) areas, namely industrial areas, residential areas and agricultural areas. The study was conducted from June 2020 to July 2021. The results showed heavy metal contamination in the Wangi River containing Pb, Cd and Hg. The average levels of Pb, Cd and Hg in the waters were 0.031 ppm, 0.019 and 0.009 ppm. This value has exceeded the PP 22/2021 class 3 quality standard which is allowed for river flow. Meanwhile, several other water quality parameter data were analyzed using the pollution index (PI) method. This method is used to determine the pollution index. The number of the average pollution index (PI average) on the Wangi River in general (industrial, residential and agricultural areas) is = 5.503. This pollution index shows the condition of the Wangi River is included in the "medium polluted" classification. Keywords: Heavy metals; pollution index; wangi river
Dhimas Adhityasmara, Dewi Ramonah
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 40-48; https://doi.org/10.35799/jis.v22i1.36293

Abstract:
Tujuan penelitian ini yaitu untuk mengetahui pengaruh pemberian dan dosis efektif ekstrak etanol batang bajakah terhadap penurunan SGOT & SGPT tikus putih jantan galur Wistar yang diinduksi isoniazid. Penelitian ini merupakan jenis penelitian eksperimental, dengan obyek penelitian penurunan kadar SGPT & SGOT setelah diberikan senyawa uji selama 14 hari. Dosis sediaan ekstrak etanol batang bajakah yang digunakan adalah dosis 200, 300 dan 400 mg/kgBB. Kontrol positif digunakan silymarin dosis 5 mg/200gBB. Sebagai penginduksi digunakan isoniazid dosis 350 mg/KgBB yang diberikan 14 hari sebelum perlakuan senyawa uji. Kelompok normal tanpa diberi perlakuan untuk mengetahui pengaruh lingkungan terhadap hewan uji. Hasil penelitian menunjukan ekstrak etanol batang bajakah tampala memiliki efek hepatoprotektor pada tikus jantan yang dinduksi isoniazid 350mg/kgBB selama 14 hari. Dosis efektif ekstrak etanol batang bajakah sebagai hepatoprotektor adalah 200 mg/kgBB. Kata kunci: Bajakah tampala; hepatoprotektor; isoniazid Hepatoprotector Effects of Bajakah Tampala Stem Ethanol Extract (Spatholobus Littoralis Hassk) on Isoniazid Induced RatsABSTRACT The purpose of this study was to determine the effect of administration and effective dose of ethanol extract of bajakah stems on the reduction of SGOT & SGPT of isoniazid-induced male white rats of Wistar strain. This research is an experimental type of research, with the object of research decreasing levels of SGPT & SGOT after being given the test compound for 14 days. The dosages of the ethanol extract of the bajakah stem used were doses of 200, 300 and 400 mg/kgBW. The positive control used silymarin at a dose of 5 mg/200gBW. As an inducer, isoniazid at a dose of 350 mg/KgBW was used 14 days before the treatment of the test compound. The normal group without treatment was to determine the effect of the environment on the test animals. The results showed that the ethanol extract of Bajakah tampala rods had a hepatoprotective effect on male rats induced by isoniazid 350mg/kgBW for 14 days. The effective dose of ethanol extract of bajakah stem as a hepatoprotector was 200 mg/kgBW. Keywords: Bajakah tampala; hepatoprotector; isoniazid
Jhon Kevin Purba, Rama R Sitinjak, Nur Ariyani Agustina, Julaili Irni
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 17-22; https://doi.org/10.35799/jis.v22i1.35703

Abstract:
Penelitian ini bertujuan untuk menganalisis kepadatan populasi cacing tanah di perkebunan kelapa sawit dengan perbedaannya pada strata umur kelapa sawit di Desa Salang Tungir Kecamatan Namorambe.Metode yang digunakan adalah metode survey dengan teknik pengambilan sampel cacing tanah secara hand sorting pada stasiun I (TBM) dan stasiun II (TM). Analisis data untuk kepadatan hingga indeks nilai penting cacing tanah digunakan rumus tertentu, dan untuk perbedaan kepadatan digunakan uji T. Hasil penelitian menunjukkan bahwa cacing tanah di perkebunan kelapa sawit TBM terdapat 3 jenis: Pontoscolex corethrurus, Pheretina sp., dan Lumbricus. Kepadatan relatif dan indeks nilai penting yang tertinggi ditemukan pada Pheretina sp. yaitu 36,09% dan 69,42%. Sedangkan pada TMterdapat 4 jenis: Pontoscolex corethrurus, Pheretina sp., Lumbricus, dan Microscolex. Kepadatan relatif dan indeks nilai pentingnya ditemukan pada Pontoscolex corethrurusyaitu secara berurut 30,56% dan 55,63%. Nilai kepadatan cacing tanah ditemukan lebih tinggi pada perkebunan kelapa sawit yang berumur 4 tahun. Kata kunci: Cacing tanah; Elaeis quineensis Jacq; kepadatan Earthworm Population Density in Oil Palm Plantation inSalang Tungir Village, Namorambe DistrictABSTRACT This study aims to analyze the population density of earthworms in oil palm plantations with the differences in the age strata of oil palm in Salang Tungir Village, Namorambe District. The method used is survey method with earthworm sampling technique by hand sorting at station I (TBM) and station II (TM). Analysis of data for density to index of significance of earthworms used a certain formula, and for differences in density used the T test. The results showed that there are 3 types of earthworms in TBM oil palm plantations: Pontoscolex corethrurus, Pheretina sp., and Lumbricus. The highest relative density and significant value index were found in Pheretina sp, namely 36.09% and 69.42%, respectively. While in TM there are 4 types: Pontoscolex corethrurus, Pheretina sp., Lumbricus, and Microscolex. The relative density and significance index found in Pontoscolex corethrurus were 30.56% and 55.63%, respectively. Earthworm density values were found to be higher in oil palm plantations aged 4 years. Keywords: Earthworm; Elaeis quineensis Jacq; density
Gading Wilda Aniriani, Marsha Savira Agatha Putri, Trisnawati Nengseh
Published: 5 December 2021
JURNAL ILMIAH SAINS, Volume 22, pp 67-74; https://doi.org/10.35799/jis.v22i1.35562

Abstract:
Penelitian ini bertujuan untuk mengetahui pengaruh penambahan MBBR terhadap kualitas air limbah domestik Instalasi Pengolahan Air Limbah (IPAL) komunal di Pondok Pesantren Mahasiswa Universitas Islam Lamongan (Ponpesma Unisla). Sejak dibangunnya IPAL komunal belum pernah dilakukan pengujian kualitas air hasil olahan IPAL. Air hasil olahan IPAL tersebut dialirkan lansung pada irigasi pertanian, sehingga kualitas air limbah harus memenuhi standar baku mutu PermenLHK No.P68 Tahun 2016 agar aman dibuang pada lingkungan. Diharapkan penambahan MBBR dapat menurunkan kadar polutan yang ada pada air limbah sehingga aman ketika dibuang pada lingkungan. Data yang dihasilkan pada penelitian ini dideskripsikan menggunakan metode deskriptif analitik dan eksperimental dengan mendesain alat reaktor uji untuk MBBR bekerja untuk menurunkan kadar polutan yang ada pada air hasil olahan IPAL Pondok Pesantren Mahasiswa Universitas Islam Lamongan. Hasil yang diperoleh dalam pengujian parameter fisika, kimia dan biologi, MBBR dapat menurunkan kadar TSS, COD, BOD dan amonia berturut-turut sebesar 73.57%, 35.50%, 61.75% dan 29.10%. Sedangkan parameter yang mengalami kenaikan yaitu parameter pH kemudian minyak dan lemak sebesar 10.44%, 19.14%. Indeks MPN pada pengujian total coliform berjumlah 8/100 mL. Penelitian ini menyimpulkan bahwa MBBR hanya dapat menurunkan kadar TSS, COD, BOD dan amonia. persentase penurunan yang paling tinggi terdapat pada parameter BOD dan yang paling rendah amonia. Kata kunci: Instalasi pengolahan air limbah; moving bed biofilm reactor; kualitas air The Addition Efectivity of MBBR on Wastewater Treatment Plant Water Quality Islamic Boarding School Students of Lamongan UniversityABSTRACTThis study aims to determine the effect of the addition of MBBR on the quality of communal Wastewater Treatment Plant(WWTP) domestic wastewater at the Lamongan Islamic Student Islamic Boarding School, the treated water from the WWTP is channeled directly to agricultural irrigation, so that the quality of wastewater must meet the quality standards of the Minister of Environment and Forestry Regulation No. P68 of 2016 in order to be safely disposed of. on the environment. is expected that the addition of MBBR can reduce the levels of pollutants in wastewater so that it is safe when disposed of in the environment. The data generated in this study were described using descriptive analytical and experimental methods by designing a test reactor. The results obtained in physical, chemical and biological tests based on the parameters tested by MBBR can reduce the levels of TSS, COD, BOD, Ammonia by 73.57%, 35.50%, 61.75%, 29.10%. While the parameters that have increased are the pH parameters then oil and fat by 10.44%, 19.14%. MPN index in total coliform testing is 8/100 mL. MBBR can only reduce levels of TSS, COD, BOD and ammonia. Keywords: Moving bed biofilm reactor; wastewater treatment plant; water quality
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