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Ni Luh Yulianti
Program Studi Teknik Pertanian Dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

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Modifikasi dan Efisiensi Pengeringan Jagung Pipil Menggunakan Alat Pengering Vertical Dryer dan Pengeringan Secara Konvensional: Modification and Efficiency of Drying Corn Husks using Vertical Dryer and Conventional Drying Made Febri Hadiputra; Ni Luh Yulianti; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 2 (2025): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2025.v13.i02.p11

Abstract

Salah satu tindakan yang dilakukan setelah panen jagung adalah pengeringan, yang dilakukan untuk mempertahankan kualitas jagung dan memperpanjang masa penyimpanan. Karena jagung tidak terpengaruh oleh cuaca, pengering mekanis vertikal adalah cara terbaik untuk mengeringkannya. Untuk memperbaiki kekurangan dari rancangan alat sebelumnya, modifikasi dilakukan. Kekurangan ini termasuk kehilangan energi yang signifikan karena bahan yang digunakan memiliki rongga dan kurang praktis karena tidak ada tempat untuk mengeluarkan jagung. Tujuan dari penelitian ini adalah untuk menciptakan dan mengubah perangkat pengering vertikal untuk proses pengerigan. Selain itu, untuk mengetahui seberapa efektif dan efisien pengeringan jagung menggunakan pengering mekanis dan pengering konvensional. Metode yang digunakan termasuk perubahan pada rancangan fungsional dan struktural unit kerangka, ruang pengering, ruang pemanas, alat kontrol suhu, dan sistem blower. Pada ruang pengering, material yang digunakan diubah untuk mengurangi kehilangan energi, dan ruang pengeluaran jagung ditambahkan untuk kinerja alat yang lebih efisien. Parameter yang diuji termasuk waktu pengeringan, kadar air awal dan akhir, kualitas jagung pipil setelah pengeringan, dan analisis efisiensi. Hasil penelitian menunjukkan bahwa penggunaan pengering mekanis vertical dryer mampu mengurangi waktu pengeringan dibandingkan dengan metode konvensional, dengan kadar air akhir mencapai 14%+ 1%bb yang memenuhi standar penyimpanan. Selain itu, kualitas jagung pipil yang dikeringkan menggunakan vertical dryer memiliki kualitas yang lebih bagus karena terhindar dari kontaminasi debu dan factor external. Alat pengering mekanis vertical dryer merupakan alternatif yang lebih efektif dan efisien untuk pengeringan jagung pipil dibandingkan dengan metode konvensional, terutama dalam hal waktu dan kualitas hasil pengeringan.
Pengaruh Pelapisan Nanokitosan terhadap Perubahan Karakteristik Mutu Filet Ikan Kakap Putih (Lates calcarifer sp) selama Penyimpanan: Effect of Nanokitosan Coating on Changes in Quality Characteristics of White Snapper Fish Filets (Lates calcarifer sp) during Storage I Wayan Widia; Anak Agung Ngurah Satya Purwananda; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 2 (2025): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2025.v13.i02.p15

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pelapisan nanokitosan terhadap perubahan karakteristik mutu filet ikan kakap putih (Lates calcarifer sp.) selama penyimpanan pada suhu 4°C. Penelitian ini menerapkan metode Rancangan Acak Lengkap dengan perlakuan pelapisan nanokitosan pada konsentrasi 0% (kontrol), 0,1%, 0,3%, dan 0,5%. Filet ikan yang telah dilapisi kemudian disimpan selama 12 hari dengan pengamatan parameter mutu mencakup kadar air, tekstur, pH, total plate count (TPC), dan total volatile base (TVB). Hasil penelitian memperlihatkan bahwasanya pelapisan nanokitosan berpengaruh signifikan dalam mempertahankan mutu filet ikan kakap putih selama penyimpanan. Filet yang dilapisi nanokitosan memiliki kadar air yang lebih stabil, tekstur yang lebih baik, dan nilai pH yang lebih rendah dibandingkan kontrol. Selain itu, pertumbuhan mikroorganisme pembusuk juga terhambat, dibuktikan dengan nilai TPC dan TVB yang lebih rendah pada filet berlapis nanokitosan. Konsentrasi nanokitosan 0,5% memberikan hasil terbaik dalam menjaga kualitas filet selama penyimpanan. Edible coating berbasis nanokitosan efektif dalam memperpanjang umur simpan dan menjaga mutu filet ikan kakap putih.
Pengaruh Ketebalan Dinding Kotak Pendingin Termoelektrik Terhadap Kinerja Kotak Penyimpanan Dingin Berbasis Tec1-12715 Sigit aris mahendra putra; Ida Bagus Putu Gunadnya; Ni Luh Yulianti; Bintang Madrini Ida Ayu Gede
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research to develop environmentally friendly cooling systems continues to be carried out. One widely studied eco-friendly cooling system is the thermoelectric cooling (Thermoelectric Cooler/TEC) system. This study aims to determine the effect of cooler box wall thickness and device operating time on cooling performance (COP) and temperature inside the storage room of a TEC1-12715-based cooler box. The study utilized a two-factor factorial Randomized Block Design (RBD). The first treatment consisted of three variations of styrofoam wall thickness, namely 2 cm, 4 cm, and 6 cm. The other treatment was the device operating time with periodic recording intervals of 20, 40, and 60 minutes. The storage room of the cooler box had a volume of 17.5 liters. Observations were conducted for 60 minutes by measuring the temperature inside the box and electrical parameters such as DC voltage and current. The results showed that the factors of box wall thickness and operating time separately had a highly significant effect (p < 0.01) on the COP value, but their interaction had no significant effect (p > 0.05). Thicker box walls led to a decrease in the COP value; conversely, longer operating times increased the COP. The significantly highest COP value was obtained at a wall thickness of 2 cm with a value of 0.123. An increase in the cooler box wall thickness caused the storage room temperature to become higher. The lowest storage room temperature was obtained from the 2 cm cooler box wall thickness treatment, which was 16.3°C. (Roboto10 pt, Justify, Italic).
Pengaruh Penggunaan Jenis Mulsa terhadap Sifat Fisik Tanah dan Laju Pertumbuhan Tanaman Tomat (Lycopersicum esculentum L.) I Kadek Dwi Adi Saputra; I Wayan Tika; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i01.p01

Abstract

Soil processing intensively without paying attention to factors which affect it such as the lack of nutrients, unbalance fertilization decreases physical quality of the soil. Therefore, soil processing is necessary to the growing condition of the tomato plants and improve nutrient availability for plants. The aims of the research are to determine the changes in soil physical properties due to the use of mulch types in line with the age of tomato plants and determine the effect of the use of mulch types on the rate of growth of tomato plants. This research is conducted with a completely randomized design with treatment without mulch, silver plastic mulch, black plastic mulch, transparent UV plastic mulch, and rice straw mulch. Each handling 15 times. The results show that the ground water content of 2 week after planting was 13-35%, 4 week after planting 20-42%, 6 week after planting 23-44%, 8 week after planting 27-51%, 10 week after planting 26-53%, 12 week after planting 32-63%. Average soil organic matter 1.16% with low category. Average permeability of land is 4.13 cm/hour in the slow to moderate category. Treatment without mulch significantly affected to the soil porosity with an average value of 48% in the less grade. The average value of the number of leaves in the silver plastic mulch treatment 122.89 strands and 124.83 strands of rice straw. The dry weight value of tomato plants in the treatment of rice straw mulch 205.87 grams and in the treatment of transparent UV plastic mulch 118.33 gram.
Optimasi Suhu Pengeringan dan Ketebalan Irisan pada Proses Pengeringan Jahe Merah (Zingiber Officinale var. rubrum) dengan Response Surface Methodology (RSM) Desak Agung Hepi; Ni Luh Yulianti; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i01.p07

Abstract

Drying temperature and thickness of slices are two things that affect the drying process of red ginger. The research was conducted with the aim of obtaining a combination of drying temperature and optimum slice thickness through response surface methodology (RSM), as well as obtaining mathematical models to predict water content, water activity, ash content and evaporation heat energy. Testing was conducted to determine the effect of the temperature and thickness of the slices on the response of water content, water activity, ash content and evaporation heat energy. Data processing using design expert application ® 12. The results showed linear models to predict the response of water levels and ash levels. Quadratic models to predict the response of water activity and evaporation heat energy. Model verification results show the combination of drying temperature and optimum slice thickness selected is 67.30C and 3 mm. The drying process with a combination of drying temperature and optimum slice thickness resulted in an actual water activity value of 0.393 aw, water content of 9.877%, ash content of 3.513% and evaporation heat energy of 68,354 kJ/h. The response of the combination drying temperature and thickness of selected optimum slices can meet the wishes according to the criteria with a desirability value of 81.3%.
Karakteristik Briket Biomassa dengan Variasi Geometri dan Jenis Bahan Baku yang Berbeda I Putu Dharma Putra Ritzada; Ni Luh Yulianti; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 2 (2021): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i02.p06

Abstract

This study aims to analyze the characteristics of biomass briquettes with different geometry variations and types of biomass briquette raw materials and determine which treatment produces the best quality briquettes. This research uses block design (RAK) using 2 factorials and 3 replications. The first factor is the type of raw material (A) which consists of three levels, namely tabah bamboo (A1), rice husk (A2) and a mixture of tabah bamboo and rice husk (A3). The second factor is the geometric shape of the briquette (B) which consists of two levels, namely beams (B1) and cylinders (B2). All treatments were repeated 3 times in order to obtain 18 observational data. The data obtained were analyzed by means of variance and if there was a significant treatment effect, then it was followed by the BNT test on the average treatment. The results showed that the interaction between treatments. Types of raw materials and geometric shapes had a significant effect on the quality parameters of the resulting briquettes. The treatment of briquettes made from rice husks in a cylindrical shape (A2B2) is a treatment that produces the best quality briquettes with a moisture content value of 2.64% bb.ash content was 6.60%, combustion rate was 73.16 (gr / minute) and volatile matter was 13.86%.
Pengaruh Kombinasi Limbah Jagung Ketan (Zea mays ceratina) dan Kotoran Sapi pada Proses Pengomposan dengan Bioaktivator Berbeda di Desa Lokasari I Gede Yoga Juni Sastrawan; I Putu Surya Wirawan; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p05

Abstract

The potential waste of glutinous corn, cow dung, and local microorganisms (MOL) has not been utilized properly in Lokasari Village. Simple technology can use as a material for composting agricultural waste. This study aims to obtain the effect of the combination of material composition with the addition of different types of bioactivators on the quality of the composting results according to the Indonesian National Standard (SNI) 19-7030-2004. Compost ingredients are glutinous corn waste and cow dung. The bio activator materials used are banana weevil, Gamal leaves, and stale rice with a fermentation process for 2 weeks with the addition of molasses and rice washing water. The container used is a tubular bamboo basket with a height of 40 cm and a diameter of 40 cm. The research method used a two-factor factorial randomized block design. The first factor is the combination of the composition of glutinous corn waste and cow dung with 5 treatment levels, there are K1 (100%:0%), K2 (75%:25%), K3 (50%:50%), K4 (25%:75% ), and K5 (0%:100%). The second factor is the type of bio activator with 3 treatment levels, there are B1 (MOL banana weevil), B2 (MOL Gamal leaf), and B3 (MOL stale rice). The results showed that the combination of glutinous corn waste and cow dung with different types of bio activators had a very significant effect on temperature and C-organic, and significantly different on yield, N total, and C/N ratio. The composition of glutinous corn waste and K5B1 cow dung produced compost with the best average quality meeting SNI standards, there are pH 6.94, water content 36.47%, C-organic 28.87%, N-total 1.56%, and C/N ratio 18.49%.
Pengaruh Variasi Konsentrasi KMnO4 dan Suhu Gelatinisasi terhadap Karakteristik Fisik dan Efektivitas Kemasan Aktif Bioplastik Kadek Irma Dwi Lestari; Ni Luh Yulianti; Ida Bagus Putu Gunadnya Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p08

Abstract

Active packaging involves incorporating active compounds or ingredients into packaging films that can affect the packaged product. Potassium permanganate (KMnO₄) is a compound with strong oxidizing properties against ethylene gas produced by climacteric fruits. In the manufacture of bioplastics, gelatinization temperature can affect the physical characteristics of active bioplastic packaging, as this process begins with the swelling of starch granules due to water absorption during heating. This study aimed to determine the effect of KMnO₄ concentration and gelatinization temperature on the physical characteristics of bioplastics and the effectiveness of packaging on avocado fruit quality during a 10-day shelf life. A two-factorial completely randomized design (RBD) was used, with KMnO₄ concentration levels of 10%, 15%, and 20%, and gelatinization temperatures of 70°C and 75°C. The results showed that active bioplastic packaging influenced the effectiveness of absorbing ethylene gas in avocados during 10 days of storage. Interaction between treatments significantly affected tensile strength, elongation, elasticity, water absorption, weight loss, texture, and total dissolved solids. The best treatment for physical characteristics was 10% KMnO₄ and 75°C gelatinization (K1S2), resulting in a tensile strength of 34.43 MPa, elongation of 4.49%, elasticity of 795.88 MPa, and water absorption of 0.71%, which also affected avocado quality during 10-day storage with weight loss of 2.43%, texture of 87.43 N, and total dissolved solids of 4.4 °Brix.
Analisis Spasial Kualitas Tanah untuk Mendukung Sistem Pertanian Presisi di Desa Candikuning, Kecamatan Baturiti, Kabupaten Tabanan I Kadek Agus Widhiartana; Sumiyati Widhiartana; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p12

Abstract

Assessment of soil quality to support precision farming systems can be carried out through spatial analysis. This study aimed to determine soil quality and the results of spatial analysis in terms of physical and chemical properties in Candikuning Village. The research was conducted using laboratory tests and mapping with QGIS software. Observed indicators were texture, porosity, C-organic, and total N. Methods used included the pipette method for texture, gravimetry for porosity, Walkley and Black method for C-organic, and Kjeldahl method for total N. Sampling was carried out using a systematic grid method with a total of 50 samples, and mapping was performed using inverse distance weighted interpolation. Results showed that soil texture consisted of sandy loam, loamy sand, and sandy loam. Soil porosity averaged 48.62%, with the lowest value at sample 17 of 34.39% and the highest at sample 5 of 62.77%. Chemical C-organic averaged 3.29%, with the lowest at sample 21 of 1.59% and the highest at sample 3 of 4.83%. Total N averaged 0.25%, with the lowest at sample 21 of 0.08% and the highest at sample 9 of 0.55%. Spatial analysis results showed that texture was dominated by sandy loam, porosity values mostly ranged 40.01–50.00%, C-organic values were mostly 3.01–5.00% (high criteria), and total N values were mostly 0.21–0.50% (medium criteria)
Co-Authors Agnesia Arista Wijaya AK Ana, Ni Kadek Tia Putri Anak Agung Ngurah Satya Purwananda Andri Frans Kalvin Gurning Anna Sukma Muthia Arta, I Wayan Roli Aviantara, I Gusti Ngurah Apriadi Benedikta Apriela Surya Bintang Madrini Ida Ayu Gede Desak Agung Hepi Desak Agung Hepi Emmy Darmawati Enike Windari Sihite Faqih, Fajar Khun Gede Arda Gede Arda Gede Oka Mandana Hertiyana Nur Annisa I Gede Widi Sedana I Gede Yoga Juni Sastrawan I Gusti Ayu Prapti Pundari I Gusti Ketut Arya Arthawan I Gusti Ngurah Apriadi Aviantara I Kadek Agus Ana I Kadek Agus Widhiartana I Kadek Dwi Adi Saputra I Kadek Dwi Adi Saputra I Ketut Adwitya Ari Sudarsa I MADE SUPARTHA UTAMA I Nyoman Sucipta I Putu Agung Surya Negara I Putu Dharma Putra Ritzada I Putu Gede Budisanjaya I Putu Surya Wirawan I Putu Wiradarma Putra I Wayan Roli Arta I Wayan Satrio Wiantara I Wayan Suryanantha I Wayan Tika I Wayan Tika I Wayan Tika I Wayan Widia I. A. G. Bintang Madrini I. A. Rina Pratiwi Pudja Ida Bagus Putu Gunadnya Ida Bagus Putu Gunadnya Gunadnya Johanes Paulus Djandon Jr. Kadek Irma Dwi Lestari Kadek Rahayu Swandewi Komang Sri Diah Nirmala Dewi laheba, Dea Lestari, Kadek Irma Dwi Luh Gede Gita Gowinda Mulyana Utami Made Febri Hadiputra Made Nanda Saputra Maria Magdalena Kristiani Mbulu Mukhes Sri Muna Ni Kadek Sri Arini Dharmayanti Ni luh Devi Widyanti Ni Made Dwi Lantari Ni Made Juli Adiasih Ni Nyoman Ayu Tirta Diani Ni Nyoman Sulastri Ni Putu Ayu Prya Chandani Ni Putu Intan Oktavia Fitriani Novi Adi Aryani Nyoman Arinata Oki Adhi Prastya Ornella, Angel Citra pande ketut diah kencana Pande Ketut Diah Kencana Rahmat Effendi Lubis Rina Pratiwi Pudja I. A Setiadi, Ni Made Thari Sianipar, Kevin Osda Sigit aris mahendra putra Sihombing, Alwin Sumiyati Sumiyati SUMIYATI SUMIYATI Sumiyati Widhiartana Sutrisno . Widhiartana, I Kadek Agus Yesinta Kristin Tamba Yohanes Setiyo