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INDONESIA
Jurnal TAMBORA
Published by Universitas Teknologi Sumbawa
ISSN : 2527970X     EISSN : 2621542X     DOI : https://doi.org/10.36761/suffix
Core Subject : Economy, Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Industrial & Manufacturing Engineering
Arjuna Subject : -
Articles 13 Documents
 1   2 
Search results for , issue "Vol. 4 No. 1 (2020): EDISI 9" : 13 Documents clear
STUDI LAJU UMPAN PADA PROSES BIOKONVERSI DENGAN VARIASI JENIS SAMPAH YANG DIKELOLA PT. BIOMAGG SINERGI INTERNASIONAL MENGGUNAKAN LARVA BLACK SOLDIER FLY (Hermetia Illucens) Pathiassana, Mega Trishuta
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1233.532 KB) | DOI: 10.36761/jt.v4i1.550

Abstract

Sampah organik adalah jenis sampah yang jumlahnya terbesar di Indonesia. Apabila tidak dikelola dengan baik, maka sampah organik tersebut dapat menimbulkan berbagai macam permasalahan. Salah satu teknologi untuk mengatasinya adalah dengan cara pengomposan menggunakan larva Black Soldier Fly (BSF). Larva BSF (maggot) memiliki kemampuan dekomposisi yang lebih baik dibandingkan dengan organisme maupun mikroorganisme lainnya. PT. Biomagg Sinergi Internasional (BSI) sebagai lokasi penelitian merupakan salah satu perusahaan yang bergerak di bidang pengelolaan sampah organik menggunakan metode biokonversi BSF. Penelitian ini bertujuan untuk mengetahui pengaruh laju umpan dan jenis sampah terhadap kecepatan penguraian pada proses biokonversi menggunakan larva BSF di PT. BSI, serta untuk mengetahui hasil analisis mutu biokonversi sampah organik yang dikelola PT. BSI berdasarkan Peraturan Menteri Pertanian (Permentan) No. 70/Permentan/SR.140/10/ 2011 tentang pupuk organik. Berdasarkan hasil penelitian, diketahui bahwa jenis sampah dan jumlah umpan berpengaruh nyata terhadap nilai biomassa larva. Kemudian, jenis sampah dan jumlah sampah berpengaruh nyata terhadap nilai konsumsi substrat, serta jenis sampah dan jumlah sampah berpengaruh nyata terhadap nilai indeks reduksi limbah. Sedangkan, jenis sampah berpengaruh nyata terhadap nilai tingkat ketahanan hidup larva. Penelitian ini juga membandingkan mutu pupuk hasil biokonversi pada sampel penelitian maupun sampel PT. BSI memenuhi standar persyaratan teknis pupuk organik padat berdasarkan Permentan No. 70/Permentan/SR.140/10/2011.
ANALISIS EDIBLE FILM DARI TEPUNG JAGUNG PUTIH (Zea mays L.) TERMODIFIKASI GLISEROL DAN KARAGENEN Yanti, Sahri
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1246.367 KB) | DOI: 10.36761/jt.v4i1.562

Abstract

Edible film berbahan dasar tebung jagung putih dimodifikasi dengan karagianan dan gliserol. Gel dari karagenan dapat meningkatkan kekuatan dan homogenitas suspensi edible film. Sementara gliserol dapat meningkatkan permeabilitas film, selain itu menjadikan film lebih halus dan tidak mudah retak. Tujuan penelitian antara lain mengetahui Kualitas edible film dari tepung jagung putih diketahui dengan cara: karakterisasi dan uji proksimat tepung jagung sebagai bahan baku, analisis sifat fisik dan mekanik edible film, optimasi konsentrasi optimal gliserol dan karagenan. Optimasi konsentrasi dilakukan dengan melakuakan variasi konsentrasi gliserol (5%, 10%, dan 15%) dan konsentrasi karagenan (1%, 2% dan 3%). Karaktistik dan kualitas tepung jagung putih dari Kabupaten Sumbawa menggunakan FTIR dan uji proksimat serta uji warna. Spektra IR menunjukkan bahwa tepung jagung Sumbawa tersusun dari gugus fungsi alkana, alkohol, keton/aldehid, hemiaketal dan hemiasetal yang merupakan gugus fungsi dari molekul karbohidrat. Sementara hasil uji proksimat menunjukkan bahwa tepung jagung Sumbawa memiliki kadar air, abu, lemak, protein, karbohidrat, amilosa, amilopektin serta pati berurut – turut: 12,61%; 0,72%; 0,08% ;0,41% ;86,17% ;55,40%; 19,84% ;77,30%. Hasil uji warna tepung jagung menunjukkan bahwa tepung jagung tanpa perlakukan memiliki warna putih tulang dan gelap, sehingga dalam penggunaanya sebagai bahan edile film perlu dimodifikasi dengan cara perendaman dalam natrium metabisulfit kemudian difermentasi untuk mengurangi kadar asam fitat yang bersifat antinutrisi dalam tepung jagung. Sifat fisik dan mekanik dari edible film berbahan dasar tepung jagung putih diketahui menggunakan uji warna, kuat tarik dan persen pemanjangan film didukung oleh FTIR. Hasil FTIR menunjukkan pengaruh gliserol dan karagenan terlihat dari vibrasi ikatan O–H (3400-3300 cm-1), vibrasi ikatan CH2 (1465 ) overlap dengan vibrasi ikatan S–O, S?O pada karagenan, vibrasi ikatan C–O, C?O (1600 cm-1, 1200-1020 cm-1) yang terlihat pada spektra IR edibe film G5%K2%. Konsentrasi optimal gliserol dan karagenan dalam pembuatan edible film tepung jagung putih yakni: gliserol 5-10% dan karagenan 3% sebab memiliki elongasi dan kuat tarik optimum serta warna edible film yang cerah. Elongasi dan kuat tarik optimum berturut - turut : 40 – 43.33%; 2,4 – 3,6 N. Hasil uji warna sampel edible film dengan kandungan gliserol 5-10% dan karagenan 3% menunjukkan index keputihan 54-58.
PENGARUH VARIASI HEAT ABSORBER PLATE TERHADAP PERFORMANCE SOLAR DRYER KEMIRI Anggara, Mietra; Firda Utami, Silvia
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (962.33 KB) | DOI: 10.36761/jt.v4i1.565

Abstract

Indonesia one of the plants that leaves and seeds grow has many useful benefits for human life, namely candlenut. The post-harvest handling of candlenut at the farm level it is generally still done traditionally where candlenut is drying on the floor or by direct exposure to solar radiation. They need approximately 7-9 days to get the appropriate drying results. Candlenut drying is influenced by the intensity of solar radiation on temperature and drying time according to the required hazelnut content. the dry hazelnut can use solar radiation power that is solar dryer. Absorbent plate is one component that is very important because it functions to absorb the intensity of solar radiation and convert it into heat energy and move it to the workpiece (candlenut) above it. In this study, testing was done on variations of the absorbent plates of zinc, aluminum and iron as well as variations in the thickness of the absorbent plates. Data collection starts at 09:00 until 15:00 WITA in sunny weather conditions. The results showed that the aluminum absorbent plate with a thickness of 0.04 mm was more effective and efficient in drying the candlenut to increase the productivity of the candlenut. The highest absorbent plate temperature and drying time were found on the aluminum absorbent plate with a thickness of 0.4 mm that is 72.36 oC and a drying time of 6 hours and meets the standard of moisture content of candlenut solution, which is 5.3%.
PEMANFAATAN SERAT SISAL (agave sisalana L.) DAN LIMBAH PLASTIK PET UNTUK PEMBUATAN BATA RINGAN CLC (CELLULAR LIGHTWEIGHT CONCRETE) Widyawati, Fauzi
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (795.349 KB) | DOI: 10.36761/jt.v4i1.566

Abstract

Some time ago in the region of West Nusa Tenggara (NTB) experienced earthquake shocks which shocked the community so that many buildings were destroyed and razed to the ground. While the current use of plastic waste is a concern of the community and government, especially in the NTB region. So this background is the basis of research to make earthquake-resistant lightweight bricks by utilizing PET plastic waste to replace coarse aggregate as a mixture and use sisal fiber as a reinforcement to strengthen the strength of lightweight bricks. The purpose of this research is to find out how to make light brick type CLC (Cellular Lightweight Concrete) by utilizing PET plastic waste and sisal fiber, to determine the effect of the addition of PET plastic and sisal fiber to the mechanical properties of light bricks, and to determine the optimum composition of the addition of plastic PET and sisal fiber in the manufacture of lightweight brick CLC. The use of PET plastic and sisal fiber produces brick with an average density of 1,830,419 kg / m3 for 1: 1 variation samples, 1,880 kg / m3 for 4: 1 variation samples, and 1,887,654 kg / m3 for 1: variation samples 4. Maximum compressive strength is achieved in 1: 4 variation samples ie samples with the addition of sisal fiber 4 times more than PET plastic. Based on the results of the measurement of the density of bricks, only the sample variation 1: 1 that meets the standards of SNI 2847-2013 light brick (1,140-1,840 kg / m3). The addition of sisal fiber which is 4 times more than PET plastic (sample variation 1: 4) has the highest compressive strength value of 8.5 MPa and is included in the category of lightweight brick quality I.
ANALISIS KANDUNGAN ASAM ASKORBAT PADA TANAMAN KANGKUNG (Ipomoea reptana Poir), BAYAM (Amaranthus spinosus), dan KETIMUN (Cucumis sativus L) Andi Nugroho, Setyo
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (766.722 KB) | DOI: 10.36761/jt.v4i1.567

Abstract

Plants have a defense mechanism against increasing oxidative compounds formed due to drought stress. One of the compounds forming these compounds is ascorbic acid. Ascorbate is the main metabolite compound in plants that has an antioxidant function, which protects plants from oxidative damage resulting from aerobic metabolism. The aim of the study was to standardize and analyze the content of Ascorbate (ASA) on the leaves of kale (Ipomoea reptana Poir), spinach (Amaranthus spinosus) and cucumber (Cucumis sativus, L). The method used was 0.5 g leaf samples were crushed with 5% metaphosphoric acid. The solution obtained was titrated with dichlorophenol-indophenol (DCIP) 0.8 g / l. Treatment analysis of ascorbic acid (ASA) content in this plant tissue which has the largest ascorbic acid content in cucumber plants (Cucumis sativus L) of 69855.85; then followed by spinach plants (Ipomoea reptana Poir) at 66517.24 and finally in spinach (Amaranthus spinosus) at 38859.13. And the ASA mg standard 308.
SIFAT FISIK MAKANAN PADAT (FOODBAR) BERBASIS TEPUNG KOMODITAS LOKAL Nuraisyah, Anni
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.462 KB) | DOI: 10.36761/jt.v4i1.568

Abstract

Consumption of fast food continuously can be detrimental to human health. An effective solution is to make innovative food that is able to meet the adequacy of nutrition, one of which is foodbar. The raw materials used in the manufacture of foodbar come from local commodities which are flourished, including sweet potatoes, green beans and Moringa and added porang to unite the three ingredients. Yellow sweet potato flour contains 77.7% carbohydrates with high digestibility (98%), while Moringa leaf flour contains 27.1 grams / 100 grams protein. Mung bean flour is used as a flavoring agent, while porang flour which is rich in glucomannan acts as a binder agent to produce foodbar products that are not easily destroyed. The treatment in this study used two factors, namely the composition of the composite flour and the composition of the addition of porang. Observations made include physical properties including water content, volume expansion, kamba density and texture of the foodbar. The best treatment on the foodbar was the combination treatment of 100 grams of yellow sweet potato flour (40 grams) green bean flour (60 grams) moringa leaf flour and (4%) porang (P3T1).
PENGUJIAN SENSOR FOTODETEKTOR SEBAGAI ALAT UKUR KADAR GULA PADA LARUTAN GULA Taufiqurrohman Zain , Alex
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1251.842 KB) | DOI: 10.36761/jt.v4i1.570

Abstract

Photodiode is a type of photodetector. P-I-N (PIN) link photodiode was chosen in this study. This selection is based on high sensitivity and rapid response to any changes in light. BPW 34 type photodiode is used as a photodetector and RGB bright LED as its light source. The selection of RGB bright LEDs is based on its ability to automatically change the beam spectrum based on bit changes. As a medium for propagating light, a single mode optical fiber is used. In addition to designing hardware, this research also designs applications through Arduino IDE 1.0.4 and LabVIEW 2013 so that hardware can be controlled and displayed on a PC. As a microcontroller, the Arduino UNO module was used in this study. The results of this study indicate that the rays on the RGB bright LED can be controlled through the bit system on a PC (Personal Computer), and can bring up the measurement results of sugar content through a PC.
KOALISI MASYARAKAT LOKAL PRIBUMI GUGAT AMNT : ANALISIS WACANA KRITIS Haryanti, Eka
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1102.995 KB) | DOI: 10.36761/jt.v4i1.572

Abstract

Every choice of meaning is ideologically motivated. Ideology is most effective when the work is not visible. Interpreting ideology in the text can be seen from the choice of vocabulary and grammatical construction. To analyze it we need to interpret not only the text but also the relationship between the text, and its social conditions. According to Fairclough, they can be grouped into three stages, namely description, interpretation and explanation. Stages of description relate to the formal nature of texts, interpretations relating to the relationship between texts and their interactions, explanations relating to the relationship between interpretations and social context.To analyze data using referential methods, substitution methods and abductive inference methods. The referential method is to analyze the system of assessment and discourse intertextuality of texts. To carry out an analysis of a valid grading system a substitution method is needed. Then the abductive inference method is needed to analyze the relationship between texts.From the results of data analysis, it can be concluded that each media has its own way of expressing its ideology. Ideology has closed the relationship with the target market that is the reader. Rungan Samawa is an online place for Sumbawa people, the news is very clear and concise, with a sharp choice of vocabulary, all related to the genre of news they have. The Case of the Local Indigenous Community Coalition Sued Amnt is a form of concern for the Samawa people who are all over the world.
PERBEDAAN STRAIN DAN UMUR BETINA TERHADAP JUMLAH KETURUNAN LALAT BUAH (Drosophila melanogaster Meigen) Taufika, Ramadhan
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.526 KB) | DOI: 10.36761/jt.v4i1.573

Abstract

A study was conducted on the differences in strain and female age on the number of descendants of fruit flies (Drospohila melanogaster Meigen) to determine the effect of strain and female age on the number of D. melanogaster offspring in normal, taxi and sepia strains. Five D. melanogaster ? normal crossed with 5 D. D. melanogaster ? normal, 5 D. melanogaster ? taxi crossed with 5 D. D. melanogaster ? taxi, 5 D. D. melanogaster ? sepia crossed with 5 D. D. melanogaster ? sepia. Age of the crossed female is 8-10 hours, 12-14 hours, 16-18 hours, 20-22 hours, and 24-26 hours after hatching from the pupa. Each group of crosses was repeated five times. D. melanogaster crossing was carried out at 25oC. Data were analyzed with factorial anava and then tested further with LSD (Least Significant Difference) of 5% significance level. Based on the results of the study note that there is an influence of strain and female age on the number of offspring. It is also known that normal strains produce the highest number of offspring, whereas taxi strains produce the fewest offspring. Age of females 20-22 hours produces the most number of offspring and is not significantly different from females 24-26 hours, while ages 8-10 hours produce the fewest number of offspring and are not significantly different from ages 12-14 hours.
PENGARUH ORIENTASI SERAT KOMPOSIT E-GLASS EPOXY TERHADAP SIFAT MEKANIK PEGAS DAUN TUNGGAL DENGAN METODE ELEMEN HINGGA Kusmiran, Amirin; Desiasni, Rita
Jurnal TAMBORA Vol. 4 No. 1 (2020): EDISI 9
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1095.811 KB) | DOI: 10.36761/jt.v4i1.574

Abstract

Single leaf spring is one of the suspension systems on vehicles that function as vibration dampers which usually use steel. One type of steel that is often used in making single leaf springs is 55Si7 steel. However, at this time composite materials began to be used as an alternative material to replace steel. One of the composite materials used as a substitute for steel is E-glass epoxy. This study aims to determine differences in the characteristics of steel leaf springs and e-glass epoxy composites. In addition, the effect of orientation of the fiber direction to deformation, stress, and safety factors on leaf springs was also carried out in this study. The analytical method used is finite element. The results showed that the composite leaf springs had lower stress than steel leaf springs. E-glass epoxy composite leaf springs variation D (fiber orientation 45º / -45º) showed the lowest stress and highest safety factor with values ??of 596 MPa and 1.4 respectively.

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