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INDONESIA
Jurnal Sains Teknologi dan Lingkungan (JSTL)
Published by Universitas Mataram
ISSN : 24770329     EISSN : 24770310     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT Public Health
Jurnal Sains Teknologi dan Lingkungan (JSTL), merupakan media untuk publikasi tulisan asli yang berkaitan dengan sains teknologi dan lingkungan baik dalam Bahasa Indonesia maupun Bahasa Inggris. Jurnal Sains Teknologi dan Lingkungan (JSTL) merupakan jurnal ilmiah terbitan berkala dua kali setahun (Juni dan Desember).
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Articles 335 Documents
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Potensi Kerabang Telur dalam Pakan Ayam Ras Telur Telur Sumiati Sumiati; Erwan Erwan; Dwi Kusuma Purnamasari; Syamsuhaidi Syamsuhaidi; Suhartini Suhartini
JURNAL SAINS TEKNOLOGI & LINGKUNGAN 2021: Special Issue, Oktober 2021
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v0i0.281

Abstract

The aim of this research is to know potention of the egg shells mill in ration toweard eggs production and Quality of the layer chiken. This research was conducted in August 2020 at Apitaik West Lombok, laboratory of Animal nutrition Animal Husbandri Mataram Univercity and laboratory of BPTP East Nusa Tenggara. 75 of layer chiken devide into 5 treatment was PI (0%  egg shells +50% yellow corn +16% rise bren and 36% KLKS consentrat), P1I (5% eggs shells +50% yellow corn +16% rise bren and 36% KLKS consentrat), P1II (7% eggs shells +50% yellow corn, 36% KLKS consentrat) +16% rise bren), 5 replicetes and each replicates use 5 layer chiken and all of treatment give iso protein and iso energy ration. The parameter in this reaserch was eggs production, feed comsumtion, feed convertion, eggs weight and eggs quality. The result of this research were analysis by varians analysis above completely randomized design (CRD). The result showed that eggs producktion, eggs weight, feed cosumtion and feed convertion non significant effect (P>0.05), but was significant effect (P<0.05) on weight and thick of eggs shell It was concluded that giving egg shells to a level of 7.5% in the feed had enough potential to increase egg production and quality of laying hens with relatively good feed efficiency. 
Perbandingan Aktivitas Antimikroba Ekstrak Etanol dari Tiga Spesies Ganoderma Asal Pulau Lombok: Comparison of Antimicrobial Activities of Ethanol Extract from Three Species of Ganoderma Original Lombok Island Faturrahman Faturrahman; Sukiman Sukiman; Bambang Fajar Suryadi; Sarkono Sarkono; Ernin Hidayati
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.282

Abstract

The use of antibiotics is one of the most important ways to deal with the spread and treatment of pathogenic microbial infections. The search for new antibiotic sources continues to be carried out to anticipate the emergence of microbial resistance. One of the natural resources that has the potential as an antimicrobial source is a member of the macrofungi of the Genus Ganoderma. The purpose of this study was to evaluate the antimicrobial performance of the ethanol extracts of Ganoderma  lucidum, G. applanatum dan Ganorderma sp. against fungi (Candida albicans dan Cryptococcus neoformans),  gram positive bacteria (Bacillus cereus dan Staphylococcus aureus) and gram negative bacteria (Escherichia coli dan Shigella sp.). Macrofungi samples were taken from the forest area of Nature Tourism Park (TWA) Gunung Tunak, TWA Kerandangan, TWA Suranadi, TWA Nuraksa Sesaot, TWA Lemor and Pusuk forest. The stages of the method performed are sample collection, sample preparation, extraction, and testing of antimicrobial activity using the well difusion method. The ethanol extract concentrations for testing were 20%, 40%, 60% and 80%. The results showed that the three Ganoderma species had anti-fungal and antibacterial activity and that different levels of concentration had an effect on inhibition. The size of the inhibition zone is directly proportional to the higher the extract concentration. The antimicrobial activity of the ethanol extract of G. lucidum was higher when compared to G. applanatum and Ganoderma sp. both against fungi (Candida albicans and Cryptococcus neoformans) as well as against gram-positive and gram-negative test bacteria. In addition, G. applanatum showed very weak inhibition against both groups of tested bacteria.  Key words: candidiasis; cryptococcosis; comorbid infections; macerations; pathogens
Prediksi Kebutuhan Data Mahasiswa Untuk Kuliah Daring Kondisi Covid-19 Di Jurusan Teknik Elektro Universitas Mataram: Prediction of Student Data Needs for Online Lectures Covid-19 Conditions in the Department of Electrical Engineering, University of Mataram Made Sutha yadnya; Ni Luh Sinar Ayu Ratna Dewi; Sudi Maryanto Al Sasongko; Rosmaliati Rosmaliati; Abdulah Zainuddin
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.284

Abstract

In the covid-19 condition, lectures at the Department of Electrical Engineering, Mataram University changed from a face-to-face process to via the Internet. T here will be a very sharp increase in demand. The use of data initially provided by the University of Mataram using a free hotspot network turned into a burden on lecturers and students. This research was conducted by sampling, general compulsory subjects, compulsory electrical courses, and compulsory expertise subjects. The distribution of variations of students domiciled in the City of Mataram and the other place coverage Lombok Island, within NTB and outside NTB. The results obtained are as follows: students who still survive in Mataram City are 17% (10.5 GB), Lombok Island 48% (8.1 GB), outside Lonbok Island 27% (4.8 GB), and outside NTB 8% (15 GB). Keyword : covid-19; lectures; online
Produktivitas Ayam Pedaging Pola Kemitraan di Kabupaten Lombok Barat Dwi K. Purnamasari; Syamsuhaidi Syamsuhaidi; K.G Wiryawan; Erwan Erwan; Sumiati Sumiati; W. Zohriana; Y. Arifin
JURNAL SAINS TEKNOLOGI & LINGKUNGAN 2021: Special Issue, Oktober 2021
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v0i0.286

Abstract

ABSTRACTThis study aims to determine the level of productivity of broilers in the partnership farm system in relation to the quality of feed  provided by partner companies. The research was conducted in 2 (two) stages; Phase I. Survey of  feeding system in partnership system of broiler farming in West Lombok. The parameters observed included: type of feed offered, the amount provided and frequency of feeding, harvest weight, and FCR. Phase II. Evaluation of the chemical composition of the diet used in partnership broiler farming system. The parameters observed included: the moisture, ash, protein, fat and  fiber. The data obtained were tabulated and discussed descriptively. Based on the survey results, there are 8 partnership companies, namely PT. MSJ, PT. BBB, PT. Samsung, PT. DMC, PT. BSS, PT. FMS, PT. KUS  and PT. PAL, and 6 types of feed used, namely S12, GM-PS, GM 1 EJ, Malindo, Wonokoyo, HD BR1 161. Average feed consumption is 3.24 kg / head / period, with weight gain of 2.10 kg / head / period, with the  FCR value of 1.54. Based on the results of the evaluation of the nutritional content, there is a mismatch, especially the  protein content which is lower (0.01%) as shown in the leaflet of the starter feed from Wonokoyo company. The conclusion of this study is that in general, the complete feed quality used is  in accordance with the SNI based feed quality standards and the broiler productivity produced on partner farms meets the company standards. Nutritional; Complete Feed; Consumption; Weight Gain; Feed Conversion
Potensi Limbah Daun Asam Jawa (Tamarandus Indica L.) Sebagai Teh Antidiare: Potential Waste of Tamarind Leaves (Tamarandus Indica L.) As Antidiarrheal Tea Dwi Kartika Risfianty; Irna Il Sanuriza
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.288

Abstract

Diarrhea is an increased frequency and decreased consistency of stool when compared to normal individuals. Giving chemical medicine which  consumed continuously, can cause negative side effects for the body. So it takes an effort to find sources of anti-diarrheal medicine that minimize side effects to the body. One source of medicine that can reduce side effects on the body is traditional medicine from local plants. One of the efforts to find a new source of anti-diarrheal medicine is to use tamarind leaves (Tamarindus indica L.) which will be developed into an anti-diarrheal bioagent. This study aims to determine the effectiveness of giving water extract of tamarind leaves (Tamarindus indica L.) fresh old leaves and young leaves to the experimental male Mus musculuus diarrhea positive. This research used three stages of research, namely the preparation of fresh old leaves and young leaves tamarind (Tamarindicus indica L.) leaf water extract, extract testing using 1% FeCl3 and UV-VIS spectrophotometer and testing using male Mus muscullus experimental animals. The results of this study indicate that the tannin content contained in the water extract of tamarind leaves (Tamarindus indica L.) is higher based on testing using 1% FeCl3 and UV-VIS septrophotometer and is more effective in overcoming diarrhea in experimental animals Mus muscullus based on changes in fecal consistency animal try to the Mus muscullus.  Key words: diarrhea; tannins; tamarind; water extract
Koreksi Bias Data Hujan Luaran GCM ECHAM5 Untuk Prediksi Curah Hujan Bulanan dan Musiman Pulau Lombok: Bias Correction for GCM ECHAM5 Model Rainfall Data Output in Estimating Monthly and Seasonally Rainfall for Lombok Island Humairo Saidah; Agustono Setiawan; Lilik Hanifah; Eko Pradjoko; Agus Suroso
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.289

Abstract

This study aims to evaluate the ability of the ECHAM5 GCM model output data in estimating monthly rainfall on the island of Lombok. The data used in this study are ECHAM5 monthly rainfall data and automatic rainfall recorder (ARR) measurement rain data for 2000-2018 obtained from ARR Gunung Sari. Correction of bias is conducted by using the mean ratio method and the regression method. The method that produces the best approach is then used to obtain rain data projections and a simple regression method. Evaluation and validation used the Pearson correlation coefficient (r), Root Mean Square Error (RMSE) and Nash-Sutcliffe Efficiency (NSE) values. The results obtained are that the daily and monthly rainfall data from the ECHAM5 model cannot be directly used to replace the rain measurement data because of its very low accuracy. The downscaling technique performed on daily and monthly rainfall data using the average ratio method does not show satisfactory performance where the efficiency figures produced are still low even gave a slight increasing number. However, the ECHAM5 model data can be used to obtain rainfall projections on a monthly and seasonal scale with a good and satisfactory correlation.  Key words: mean ratio method; global climate model; ECHAM5; monthly rainfall.
Perlakuan Pupuk Kandang Untuk Mengurangi Dosis Pupuk Kimia Pada Budidaya Tanaman Cabai (Capsicum annuum L.): Manure Treatment to Reduce Chemical Fertlizer Dose in Chili (Capsicum annuum L.) Culture I Komang Damar Jaya; Bambang Budi Santoso; Jayaputra Jayaputra
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 2 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i2.294

Abstract

The use of high doses of chemical fertilizers in the production of chili (Capsicum annuum L.) has an adverse impact on the environment, especially in dryland. This study aimed to examine the role of cow manure (PKS), goat manure (PKK), chicken manure (PKA), or a combination of two manures in reducing 25% of the requirement for chemical fertilizer on chili plants. One experiment was carried out in the dryland of Gumantar Village, North Lombok Regency, from May to October 2021. Phonska NPK (15-15-15) chemical fertilizer (PK) at a 1,200 kg/ha dose was used as a control. The treatments tested were 75% PK+PKS, 75% PK+PKK, 75% PK+PKA, 75% PK+PKS+PKK, 75% PK+PKS+PKA and 75% PK+PKK+PKA. The dose of manure used in each treatment was 20 tons/ha. All treatments were repeated three times and arranged in a randomized block design. The results showed that the treatment of manure, especially goat manure and chicken manure, increased the available phosphate (P) in the soil. The growth and yield of chili plants were not significantly different in all treatments, which means that manure could replace the role of 25% of the chemical fertilizer used. These results indicate that manure in the long term can reduce the need for chemical fertilizers to produce chili in dryland. Key words: chili; dryland; manure; chemical fertilizer; nutrition
Penilaian Uji Konsistensi Dokumen AMDAL yang disahkan oleh Komisi Penilai AMDAL Provinsi Sumatera Selatan: The Assessment of EIA Document Consistency Aspect Validated by EIA Assessment Commission of South Sumatra Province Rian Syafni; Dedik Budianta; Moh. Rasyid Ridho
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 8 No. 1 (2022): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v8i1.291

Abstract

Environmental Impact Assessment (EIA) is one of the instruments to prevent environmental pollution and/or damage (Undang-Undang 32, 2009). Success in preventing environmental pollution is closely related to the quality of the EIA document, especially the quality of the consistency aspects, such as the consistency between the hypothetical significant impact and the initial environmental baseline, the estimated magnitude of the impact, the environmental management and monitoring plan. Therefore, it is very necessary to assess the consistency of the EIA Document in the Province of South Sumatra. This research aims to assess the consistency test of the EIA Document approved by the EIA Assessment Commission of South Sumatra Province. This study used descriptive qualitative method. The research sample was taken using a total sampling technique, all EIA Documents that have been assessed by the EIA Assessment Commission of South Sumatra Province between 2018-2020 and already have an Environmental Feasibility Decree totaling 12 (twelve) documents are used as research samples. The results showed that 5 (five) documents (42%) had very good consistency,               6 (six) documents (50%) had good consistency and 1 (one) document (8%) ) had a bad consistency.
Kandidat Galur Unggul Mutan Padi G16 Hasil Induksi Mutasi dengan Sinar Gamma: Superior Line Candidate for Rice Mutant G16 Result of Mutation Induction with Gamma Rays Ni Wayan Sri Suliartini; I Gusti Putu Muliarta Aryana; Anak Agung Ketut Sudharmawan; I Wayan Sudika
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 8 No. 1 (2022): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v8i1.293

Abstract

The aim of this study was to obtain superior lines that had higher yields and shorter harvesting ages than their  parents. The research was conducted in Saribaye Village, Lingsar, West Lombok Districts, from February to July 2020. The study used a Single Plant Design with the treatment of the M1 G16 mutant population at irradiation doses of 200 Gy, 300 Gy, 400 Gy and 500 Gy and  parent (G16 line) as a control. Each treatment planted 200 seeds while the control was repeated three times. The variables observed included the number of productive tillers (saplings), panicle length (cm), number of filled and empty grains per panicle (grains), age of harvest (HSS), weight of 100 grains (g) and weight of filled grain per clump (g). . The value of genetic variance is calculated based on the reduction of phenotype variance with environmental variation (Mangoendidjojo, 2007). Determination of the potential for superior line candidates is done by setting the selection limit value (Xs) according to Kuswanto and Waluyo (2012). The selected genotype is a genotype that has a production value of more than Xs and an age of less than Xs. The results showed that there was an increase in genetic variance due to gamma ray irradiation treatment. A total of three mutant genotypes were successfully selected as candidates for superior strains, namely M1G16-9D3, M1G16-14D3, M1G16-27D3. The three mutant genotypes have the opportunity to be further developed into superior varieties with high yield potential and early maturity.
Penyisihan Logam Fe Pada Air Gambut Menggunakan Membran Chitosan Sebagai Adsorben: Removal of Fe From Peat Water Using Chitosan Membrane As Adsorbent Khadijah Lestari Lubis; Shinta Elystia; Dini Aulia Sari Ermal; Zultiniar Zultiniar
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 8 No. 1 (2022): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v8i1.298

Abstract

Peat water in terms of quality cannot be used as a source of clean water or drinking water, so it needs to be processed. One alternative treatment that can be used is the adsorption process with a column system using a chitosan membrane (the content of amine groups contained in the chitosan membrane has a good ability to absorb metals). This study aims to remove Fe metal in peat water. Variations carried out were Fe concentrations of 2, 3 and 4 mg/L and flow rates of 2, 3, 4 and 5 mL/minute. The results obtained are the best Fe metal removal efficiency of 92.20% with a final concentration of 0.312 mg/L at an Fe concentration of 4 mg/L and a flow rate of 2 mL/minute. The results of the study have met the quality standards set by the Minister of Health of the Republic of Indonesia Number 32 of 2017 concerning Sanitary Hygiene

Page 13 of 34 | Total Record : 335

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