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Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
ISSN : 1829586X     EISSN : 25810170     DOI : -
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam with registered number ISSN 1829 586X (print) and ISSN 2581-0170 (online) is a scientific journal managed and published by Faculty of Mathematics and Natural Science, Universitas PGRI Palembang. Sainmatika Journal publishes research articles from laboratory or field experiment as well as theoretical and elaborative research in field of Basic Sciences; Mathematics, Chemistry, Physics and Biology. This journal accepts articles in Indonesian or English. This journal is published twice a year in June and December.
Arjuna Subject : -
Articles 499 Documents
Preferensi Konsumsi Kumbang Beras (Sitophilus Oryzae L) Pada Beberapa Varietas Beras Rizal, Syamsul; Mutiara, Dian; Agustina, Dina
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 2 (2019)
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.961 KB) | DOI: 10.31851/sainmatika.v16i2.3287

Abstract

Research on the Consumption Preference for Rice Beetles (Sitophilus oryzae L) in Several Rice Varieties was carried out from March to Mei 2019 at Laboratory Science Center of PGRI University. The study aims to determine the consumption preferences of several rice varieties caused by rice beetles. The study used the Experimental method in a completely randomized design (CRD) with five treatments and five replications, namely white, red, black, white sticky rice and black sticky rice varieties. Based on the analysis of fingerprints, the treatment of white sticky rice varieties significantly affected the amount of lose weight rice and rice beetle consumption preference, then continued with the BNT Test. The treatment of varieties D (white sticky rice) was not significantly different from the treatment of varieties E (black sticky rice), treatment E (black sticky rice) significantly different from the treatment of variety C (black rice), the treatment of variety C (black rice) was not significantly different from the treatment of variety B (brown rice), treatment of variety B (brown rice) was significantly different from the treatment of variety A (white rice). Based on the BNT Test, rice beetle consumption preferences seen from the weight reduction of rice in D rice varieties had the greatest weight reduction of 6.6 grams and the lowest weight reduction was white rice varieties of 0.9 grams, while for red, black and Black sticky rice has an average weight loss of rice each of 4.1 grams, 4.2 grams and 5.7 grams. Based on the percentage of preference (preference) for rice beetle consumption, it was found that the highest percentage was found in white sticky rice varieties at 6.6% and the lowest in white rice varieties at 1.5%, while for brown rice varieties at 4%, black rice 4.2% and black sticky rice 5.6%.
Aktifitas Antifungi Kitosan Hasil Hidrolisis Enzimatik Terhadap Penyakit Antraknosa Suryadi, Yadi; Susilowati, Dwiningsih; Samudra, I Made
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 2 (2019)
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.487 KB) | DOI: 10.31851/sainmatika.v16i2.2826

Abstract

Anthracnose disease caused by Colletotrichum gloeosporioides is one of an important fungal pathogen on mango fruits during the pre harvest or post harvest stage. The use of chitosan as an alternative method to control the disease is necessary due to its biodegradable, biocompatible and non-toxic effect. Chitosan tripolyphosphate (C-TPP) showed higher inhibition to C. gloeosporioides compared with that of low molecular weight (LMW) chitosan as affected by its particle size. The best of disease inhibitory activity was revealed by C-TPP B [0.2% LMW : 0.1% TPP; (5: 2)] and C [0.2% LMW: 0:08% TPP; (5: 1)] treatments based on  in vitro and in vivo test. Because of the concentration of chitosan and TPP may affect to particle structure, hence the C-TPP formation needs further to be optimized so that the size is getting smaller and stable.
Analisis Penggunaan FUNGSI Terhadap Data Pekerjaan di Desa Karakan 06 Fansyah, Rizki Hanif; Setio, Edo Pras
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 1 (2019): SAINMATIKA
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.945 KB) | DOI: 10.31851/sainmatika.v16i1.2288

Abstract

The research objective of the Analysis of Use of FUNCTION on Job Data in Karakan Village was to publish the most important form of livelihood in Karakan village 06. The method used for this study was to use the FUNCTION method. the results derived from this study are that we can find out the percentage of the most work as livelihoods in Karakan village 06.
PENGARUH SUHU TERHADAP VISKOSITAS MINYAK PELUMAS (OLI) Lumbantoruan, Parmin; Erislah, Erislah
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Sainmatika Volume 13 No. 2 Desember 2016
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.766 KB) | DOI: 10.31851/sainmatika.v13i2.993

Abstract

ABSTRACT Research has been done on the effect of temperature to the viscosity of lubricating oil. The purpose of this study was to compare the various types of oil. Variables used researcher of temperature of 55°C, 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, 90°C, 95°C, 100°C and the method used was the experimental method. The research was conducted in the Lube Oil Department, Pupuk Sriwidjaja (PUSRI) Company, Palembang. Research used Saybolt viscometer. Oil used was a type of 2 oil-wheelers. The study found that the results of all three types of oil A at a temperature of 55°C oil viscosity became 90.895 cSt, at a temperature of 100°C viscosity became 20.875 cSt, oil B at a temperature of 55°C viscosity became 86.825 cSt, at a temperature of 100°C viscosity became 23.580 cSt, at 55°C The viscosity of oil C became 87.519 cSt, at a temperature of 100°C viscosity became 21.397 cSt. These results indicated that the higher the temperature, the lower the value of viscosity and the oil became more watery. From the three types of the oil, the oil C had no significant change when heated. Keywords: Lubricating Oil, Temperature, Saybolt viscometer, viscosity ABSTRAK Telah dilakukan penelitian tentang pengaruh suhu terhadap viskositas minyak pelumas (OLI). Tujuan penelitian ini adalah untuk membandingkan berbagai jenis oli. Variabel yang digunakan peneliti berupa suhu dari 550C, 600C, 650C, 700C, 750C, 800C, 850C, 900C, 950C, 1000C dan metode yang digunakan adalah metode eksperimen. Penelitian dilaksanakan pada bulan Oktober sampai November 2015 di Department Lube Oil PT. Pupuk Sriwidjaja (PUSRI) Palembang. Penelitian dengan menggunakan alat saybolt viscometer. Oli yang digunakan adalah jenis oli kendaraan roda 2. Dari penelitian ini yang dilakukan maka diperoleh hasil ketiga jenis oli yaitu oli A pada suhu 550C nilai viskositas menjadi 90.895 cSt, pada suhu 1000C nilai viskositas menjadi 20.875 cSt,  oli B pada suhu 550C nilai viskositas menjadi 86.825 cSt, pada suhu 1000Cnilai viskositas menjadi 23.580 cSt, oli C pada suhu 550Cnilai viskositas menjadi 87.519 cSt, pada suhu 1000C nilai viskositas menjadi 21.397 cSt. Hasil ini menunjukkan bahwa semakin tinggi suhu maka semakin kecil nilai viskositas dan oli akan menjadi encer.Dari ketiga jenis oli tersebut oli B tidak mengalami perubahan signifikan saat dipanaskan Kata Kunci : Minyak pelumas, Suhu, Saybolt viscometer, Viskositas
Analisis Potensi Cemaran Sisa Penggunaan Antibiotik di Perairan Umum (Studi Kasus : Badan Sungai Musi Kota Palembang) Kurniawan, Ian; Mariadi, Pra Dian
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 2 (2019)
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.221 KB) | DOI: 10.31851/sainmatika.v16i2.3176

Abstract

Penggunaan antibiotik merupakan salah satu kebutuhan dasar kesehatan manusia yang berfungsi untuk menghambat atau membunuh pertumbuhan mikroorganisme. Sumber kegiatan yang berpotensi menghasilkan sisa antibiotik dalam badan air diantaranya melalui berbagai macam kegiatan dalam bidang pertanian, peternakan, pharmacueticals and personal care products dan industri. Sungai merupakan tempat pembuangan akhir dari semua sisa kegiatan, air dalam badan Sungai Musi di Kota Palembang menjadi bahan baku primer yang digunakan untuk memenuhi kebutuhan air dalam berbagai aspek kehidupan. Penelitian ini bertujuan untuk menentukan pola sebaran antibiotik dan kandungan antibiotik dalam badan air Sungai Musi Kota Palembang. Penelitian dilakukan dalam jangka waktu bulan Maret s.d. Oktober 2019, menggunakan penelitian observasi analitik dengan melakukan pengukuran cross sectional. Titik pengmabilan sampel di tiga lokasi, lokasi 1 (Jembatan Ampera), Lokasi 2 (Jembatan kertapati) dan lokasi 3 (Jembatan musi 2)  yang merupakan badan sungai Musi di Kota Palembang. Tahapan Analisis Laboratorium dilakukan untuk menentukan jenis antibiotik yang terdapat dalam sampel air dengan menggunakan Agilent 6540 Liquid Chromatography/Quadrupole Time of Flight Mass Spectrometry (LC/Q-TOF/MS). LC/Q-TOF/MS menghasilkan nilai sensitivitas dan selektivitas yang baik serta memiliki kemampuan untuk melakukan screening terhadap obat-obatan yang belum diketahui jenisnya (untargetted).Teridentifikasi 2 jenis antibiotik yaitu Ciprofloxacin dan Netilmicin pada ketiga sampel air dan diperlukan analisis kuantitatif untuk mendapatkan konsentrasinya.
PARAMETER FISIKA, KIMIA DAN BAKTERIOLOGI AIR MINUM ALKALI TERIONISASI YANG DIPRODUKSI MESIN KANGEN WATER LeveLuk SD 501 Emilia, Ita; Mutiara, Dian
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 1 (2019): SAINMATIKA
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.084 KB) | DOI: 10.31851/sainmatika.v16i1.2845

Abstract

ABSTRACTIonized alkaline drinking water is alkaline and has a high redox potential value which is a good antioxidant. Considering the consumption of alkaline drinking water there are still pros and cons in society because research on ionized alkaline water in Indonesia has not been widely published yet, so the researchers intend to conduct research on the physical, chemical and bacteriological parameters of ionized alkaline drinking water produced by Kangen Water LeveLuk machines SD 501 with the aim of knowing the quality of ionized alkaline drinking water, based on physical, chemical and bacteriological parameters. This research is descriptive qualitative. The quality inspection of ionized alkaline drinking water is carried out at the South Sumatra Provincial Health Office Laboratory, which includes examining physical parameters (odor, turbidity, taste, color, amount of dissolved solids (TDS)), chemical parameters (including pH, iron, fluoride, hardness checks , chloride, chromium valence 6, manganese, nitrate, nitrite, zinc, cyanide, sulfate, copper, aluminum), and bacteriological testing (including tests for coliform and colitinja). Based on the results of the study, the samples of ionized alkaline drinking water produced by households located in Lorong Amilin Rt 4 Rw 2, Kelurahan Tangga Takat, Seberang Ulu II, Plaju Palembang fulfilled the requirements stipulated under the Minister of Health Regulation of the Republic of Indonesia No.492 / MENKES / PER / IV / 2010. Keywords: ionized alkaline water, physical, chemical, bacteriological parameters Abstrak Air minum alkali terionisasi bersifat basa dan  memiliki nilai potensial redoks yang tinggi yakni merupakan antioksidan yang baik. Mengingat konsumsi  air minum yang bersifat alkali masih terdapat pro dan kontra di masyarakat karena penelitian tentang air alkali terionisasi di Indonesia juga belum banyak dipublikasikan, maka peneliti bermaksud melakukan penelitian tentang parameter fisika, kimia dan bakteriologi  dari air minum beralkali terionisasi yang diproduksi mesin Kangen Water LeveLuk SD 501 dengan  tujuan dapat mengetahui  kualitas air minum alkali terionisasi, berdasarkan parameter fisik, kimia dan bakteriologi. Penelitian ini bersifat deskriptif kualitatif.  Pemeriksaan kualitas air minum alkali terionisasi  dilaksanakan di Laboratorium Dinas Kesehatan Provinsi Sumatera Selatan, yaitu meliputi pemeriksaan parameter fisika (bau, kekeruhan, rasa, warna, jumlah zat padat terlarut (TDS)), parameter kimia (mencakup pemeriksaan pH, besi, fluoride, kesadahan, klorida, kromium valensi 6, mangan, nitrat, nitrit, seng, sianida, sulfat, tembaga, alumunium), dan  pengujian bakteriologi (meliputi uji adanya coliform dan colitinja). Berdasarkan  hasil penelitian menunjukkan bahwa  sampel air minum  alkali terionisasi yang diproduksi indistri rumah tangga yang berlokasi di Lorong Amilin Rt 4 Rw 2 Kelurahan  Tangga Takat Kecamataan Seberang Ulu  II Plaju Palembang   memenuhi persyaratan  yang ditetapkan berdasarkan  Peraturan Menteri Kesehatan Republik Indonesia No.492/MENKES/PER/IV/2010. Kata Kunci : air alkali terionisasi, parameter fisik, kimia, bakteriologi
Hasil Tangkapan dan Laju Tangkap Rebo di Sungai Muara Batun Kabupaten Ogan Komering Ilir, Sumatera Selatan Makri, Makri
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Sainmatika Volume 15 No 2 Desember 2018
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.673 KB) | DOI: 10.31851/sainmatika.v15i2.2370

Abstract

Rebo fishing gear is classified as a type of fishing gear that produces lots of fish. The problem on rebo  fishing gear is low selectivity on catch product. This condition has caused the catching product dominated by small fishes. The objective of this research is to know the kind of fishing product and fishing rate of rebo. The research used field observation method through interview and direct observe on February, April, July and September 2016. Fishing activity used rebo where wooden branches are placed on the edge of middle of the shallow River and arranged in the bottom  waters with an area of 7.5 to 300 m2, then the surfaceof the waters and then put water hyacinth (Eichhornia crassipes). The research shown the fishing rate of rebo is 28.4 ? 48.5 kg/day, 36.9  kg/day for average. The fish production have highest fishing rate than shrimp fishing rate. The fishing rate of fish is 23.28 kg/day or 63%, and fishing rate for shrimp is 12.94 kg/day or 35%, and fishing rate of baycatch product (buntal, snake, baby crab, and cucumber sea) are 0.92 kg/day or 2.48%. Biomass proportion of fish have dominated by Lundu fish (Mystus sp) with 20.66 %, the shrimp dominatede by Galah shrimp (Macrobrachium rosenbergii) with 7.11%. ABSTRAK Alat tangkap rebo tergolong jenis alat tangkap yang banyak menghasilkan ikan. Permasalahan pada perikanan rebo adalah rendahnya selektivitas alat tangkap ini terhadap hasil tangkapan. Kondisi ini mengakibatkan hasil tangkapan didominasi ukuran kecil. Penelitian ini bertujuan untuk mengetahui hasil tangkapan dan laju tangkap rebo. Penelitian dilakukan dengan metode observasi lapangan melalui wawancara dan pengamatan langsung terhadap hasil tangkapan rebo yang beroperasi di sungai muara Batun. Pengamatan lapangan dilakukan bulan  Februari, April, Juli dan September 2016.  Kegiatan penangkapan menggunakan alat tangkap rebo dimana ranting kayu diletakkan di tepi atau tengah Sungai yang dangkal dan disusun di dasar perairan dengan luas 7.5 hingga 300 m2, kemudian dipermukaan perairan lalu diletakkan eceng gondok (Eichhornia crassipes). Hasil penelitian menunjukan bahwa  kisaran laju tangkap rebo  28.4 ? 48.5 kg/hari, rata-rata 36.9 kg/hari. Hasil tangkapan ikan memiliki laju tangkap lebih tinggi dibanding laju tangkap udang. Rata-rata laju tangkap ikan  23.28 kg/hari atau 63 %, laju tangkap  udang 12.94 kg/hari atau 35 %, dan laju tangkap sampingan yang dibuang 0.92 kg atau 2.48 % dari total laju tangkap. Proporsi biomas hasil tangkapan ikan didominasi ikan Lundu (Mystus sp) 20.66% dan udang didominasi udang Galah (Macrobrachium rosenbergii)  7.11%. Kata kunci : rebo, laju tangkap, sungai muara, Batun
Pengaruh Nutrisi AB Mix Terhadap Pertumbuhan Tanaman Bayam Merah (Amaranthus tricolor L.) secara Hidroponik Hidayanti, Lilik; Kartika, Trimin
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 2 (2019)
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.764 KB) | DOI: 10.31851/sainmatika.v16i2.3214

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengetahui  Pengaruh Nutrisi AB mix Terhadap Pertumbuhan Tanaman Bayam Merah (Amaranthus tricolor L.) secara Hidroponik, pada bulan Juni 2019 sampai Agustus 2019 di Workshop Fakultas MIPA Universitas PGRI Palembang. Tujuan dari penelitian ini adalah mengetahui pengaruh pemberian dosis nutrisi AB mix terhadap pertumbuhan tanaman bayam merah (Amaranthus tricolor L.). Metode penelitian adalah eksperimen dalam Rancangan Acak Lengkap (RAL), menggunakan 5 perlakuan 4 ulangan yaitu P0 (kontrol/tanpa nutrisi), P1 ( 5 ml nutrisi AB mix), P2 (10 ml nutrisi AB mix), P3 (15 ml nutrisi AB mix), P4 (20 ml nutrisi AB mix), dianalisis dengan Analisis Sidik Ragam (ANSIRA). Parameter yang diamati adalah tinggi tanaman, jumlah daun dan berat basah. Hasil penelitian menunjukkan bahwa pemberian dosis unsur hara AB mix berpengaruh nyata terhadap tinggi tanaman, jumlah daun dan berat basah tanaman bayam merah (Amaranthus tricolor  L.). Perlakuan terbaik P3  dengan  dosis 15 ml dengan tinggi tanaman 24,2 cm, jumlah daun 13,25 helai dan berat basah tanaman 18,825 gram, hasil terendah pada perlakuan P0 dengan tinggi tanaman 5.65 cm, jumlah daun 8,5 helai dan berat basah tanaman 0,375 gram.
Studi Numerik Model Virus Hepatitis B dengan Pengaruh Penyembuhan dan Absorpsi Sari, Lisa Risfana; Andayani, Puji
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 1 (2019): SAINMATIKA
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (996.667 KB) | DOI: 10.31851/sainmatika.v16i1.3124

Abstract

The phenomenon of Hepatitis B outbreak almost occurs in all developing countries including Indonesia. Hepatitis B infection can develop into acute or chronic. In the chronic stage, the infection can cause liver complications such as liver cirrhosis or liver cancer or even death. Mathematical modeling have been widely used to study the Hepatitis B virus infection. In this study a mathematical model is constructed by considering non-cytolytic immune response and pathogen absorption. The model is analyzed by determining the equilibrium point of the model, determining the existence of the equilibrium point, and analyzing the stability of the equilibrium point of the model with numerical simulation. In this case, numerical analysis is used to illustrate the conditions of infection-free and infected. Furthermore, the relation of the stability requirements of each equilibrium point is studied. The results show that there are two equilibrium points, uninfected and infected equilibrium point. Both of the uninfected equilibrium point and infected equilibrium point is asymptotically stable if a certain condition are met. Based on these results, the causes of a persistent infection are studied.
PERANAN MIKROORGANISME ENDOFIT DALAM DUNIA KESEHATAN: KAJIAN PUSTAKA Pratiwi, Rina Hidayati
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol 16, No 1 (2019): SAINMATIKA
Publisher : Faculty of Mathematics and Natural Science, Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.689 KB) | DOI: 10.31851/sainmatika.v16i1.2695

Abstract

The infection disease is still important problem in Indonesia, especially in eastern part of Indonesia. The problem of the bacterial resistance has resulted in increased morbidity, mortality, and costs of healthcare. This situation is therefore drives many researches on discovery for new antibiotics and novel bioactive compounds to combat multidrug resistant microbes, such as Mycobacterium tuberculosis, Staphylococcus spp., and Streptococcus spp.  The aim of this study is to know the development of the endophytic microorganisms. The endophytic bacteria provide vast potential in producing various novel natural products, including secondary metabolites similar to their hosts. The plant is one of host for the endophytic microorganisms reside. In Indonesia, that endophytic is used medicinally for treatment as well as from the host. The bioactive compound of endophytic microorganisms are used medicinally for treatment antibacterial, antiviral, anticancer, antioxidants, antidiabetic, and immunosuppressive. These showed that endophytic bacteria are promising source of new antibiotics against susceptible and resistant forms of various infectious microbes.

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