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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Dinamika Penelitian Industri Paspalum: Jurnal Ilmiah Pertanian Seminar Nasional Lahan Suboptimal Jurnal Agricultural Biosystem Engineering
Winda Rahmawati
Universitas Lampung
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Other

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PEMBERDAYAAN WANITA TANI DALAM USAHA PRODUKSI ABUCA (ABON DAN BUBUK CABAI) DI KECAMATAN ADILUWIH KABUPATEN PRINGSEWU Dwi Dian Novita; Winda Rahmawati
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol 4 No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v4i2.169

Abstract

Teknologi pengolahan abon dan bubuk cabai (Abuca) tergolong cukup mudah sehingga dapat diterapkan oleh para istri petani yang tergabung dalam Kelompok Wanita Tani (KWT) “Maju” di Desa Waringinsari Timur, Kecamatan Adiluwih, Kabupaten Pringsewu. Pemberdayaan KWT dalam usaha produksi Abuca menjadi salah satu solusi bagi permasalahan harga jual cabai yang sangat rendah pada saat panen raya. Rangkaian kegiatan PKM ini terdiri dari: (1) sosialisasi dan koordinasi, (2) penyuluhan pascapanen dan peluang usaha pengolahan cabai, (3) penentuan merk dan desain label kemasan (4) praktik produksi Abuca dan pemasaran produk, serta (5) evaluasi kegiatan. Transfer pengetahuan dan alih teknologi kepada mitra dilakukan dengan metode pelatihan dan praktik. Setelah dibina selama 4 bulan (Juli—Oktober 2019), para anggota KWT Maju kini telah memiliki pengetahuan dan keterempilan untuk memproduksi Abuca dan telah memiliki produk dengan merk “Hot Asoy”. Terdapat 3 varian abon cabai yang diproduksi yaitu rasa teri, rebon, dan original (rasa bawang). Abon cabai dikemas per 50 gram dalam botol dan standing pouch plastik dengan harga jual Rp.18.000,- dan Rp.15.000,-. Sedangkan bubuk cabai dikemas per 100 gram dalam standing pouch plastik dengan harga jual Rp.10.000,-.
Pemodelan Karakteristik Penyerapan Air pada Jagung (Zea mays L.), Sorgum (Sorghum bicolor L.), dan Hanjeli (Coix lacyma-jobi L.) Selama Perendaman Dwi Dian Novita; Asropi Asropi; Sapto Kuncoro; Winda Rahmawati
Jurnal Dinamika Penelitian Industri Vol 30, No 2 (2019): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28959/jdpi.v30i2.5666

Abstract

Karakteristik penyerapan air dari biji jagung, sorgum, dan hanjeli  selama perendaman dipelajari pada dua jenis larutan yaitu pH netral dan alkali, serta pada tiga suhu yang berbeda yaitu 30, 45, dan 60 °C.   Persamaan Peleg digunakan untuk mengetahui laju penyerapan air dan kapasitas penyerapan air maksimum serta untuk menentukan kadar air kesetimbangan. Kinetika absorpsi mengikuti hukum difusi Fick. Nilai koefisien difusi meningkat karena peningkatan suhu dan jenis larutan perendaman. Hasil perhitungan nilai koefisien difusi berkisar 1,61 – 1,82x10-11 m2s-1 untuk sorgum; 1,97 – 2,64x10-11 m2s-1 untuk hanjeli; dan 4,80 – 5,66x10-11 m2s-1 untuk jagung. Perendaman pada larutan alkali menghasilkan nilai energi aktivasi yang lebih kecil. Persamaan Arrhenius dapat digunakan dengan baik dalam pendugaan nilai koefisien difusi berdasarkan nilai energi aktivasi dan suhu perendaman.
Model Jaringan Syaraf Tiruan untuk Memprediksi Indeks Plastisitas Tanah Winda Rahmawati; S. Suharyatun; C. Sugianti
Seminar Nasional Lahan Suboptimal 2019: Prosiding Seminar Nasional Lahan Suboptimal “Smart Farming yang Berwawasan Lingkungan untuk Ke
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.615 KB)

Abstract

Rahmawati W, Suharyatun S, Sugianti C. 2019. Artificial neural networks model to predict soil plasticity index. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 418-423. Palembang: Unsri Press.  Soil index plasticity is an important soil physical property of the soil related to the tillage intensity , especially if it is done by machine such as a tractor. This study aim is to build an artificial neural network (ANN) model that connects the soil texture with the  soil index plasticity. The research was conducted in several stages, namely: (1) soil texture determination, plastic limit and liquid limit in the laboratory, (2) plasticity index calculation, (3) Soil texture-soil plasticity index ANN model built. ANN models are created using 3 input variables, namely x1: clay content, x2: silt content and x3: sand content. The model uses 2 layers, with a logsig-tangig-purelin activation function. The results of the model training resulted in a RMSE (Root Mean Square Error) value of 1.6542 and an R2 value of 0.9570. Model validation produces a correlation value of predictive data and R2 observation data of 0.9332.Keywords: artificial neural network models, soil consistency, soil physical properties, soil texture  
Pengaruh Suhu Penyimpanan dan Varietas terhadap Mutu Buah Tomat Annisa Fitriani; Tamrin Tamrin; Winda Rahmawati; Sapto Kuncoro
Jurnal Agricultural Biosystem Engineering Vol 1, No 4 (2022): Desember 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v1i4.6567

Abstract

Tomato is agricultural commodities which very easy to be damaged after the Harvest.  These things happened caused of the handle at the Harvest time which done by the farmer is not exactly right especially in keeping the quality of the tomato.  The purpose of this research is for knowing the influence of the tomatoes quality and the influence varieties for quality of tomatoes during storage period.  This research used design of Rancangan Acak Lengkap (RAL) Factorial, the first factor is varieties, tomato varieties used are ordinary tomatoes, Rampai Tomatoes, and Ceri Tomatoes.  The second factor is temperature (temperature 10°C, 20°C and room temperature).  Observations made are changes in weight loss, violence, total solved solids, water content and vitamin C.  The experiment was carried about 3 times. The result of this research show that the storage temperature significant effect on weight lost and statistically significant effect on hardness and total dissolved solids during the storage period, but the temperature storage not effect on Vitamin C levels, moisture content. Tomatoes variety effect on weight loss, level of violence, total dissolved solids, water content and vitamin c levels.  The best temperature used to maintain quality and extend the shelf life of tomatoes is at the storage temperature of 20°C. Keywords: Temperature, Total Dissolved Solids, Variety, Vitamin C, Weight Loss.
Mempelajari Karakteristik Pengeringan Lapis Tipis Jeroan Ayam Mia Anjelina Sitepu; Tamrin Tamrin; Winda Rahmawati; Sapto Kuncoro
Jurnal Agricultural Biosystem Engineering Vol 1, No 3 (2022): September 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v1i3.6323

Abstract

The poultry industry in Indonesia is growing rapidly, but still relies heavily on the supply of seeds and feed raw materials from abroad. The abundant meat production leaves innards or chicken carcasses in large quantities.  The use of chicken innards into animal feed is one of the fulfillments of the supply of animal feed availability because it contains enough protein.  Because the period of decomposition of meat occurs quickly, so to overcome this, it is necessary to dry the dried innards in order to stay durable.  This study aims to determine the characteristic value and water content of the equilibrium drying of chicken innards thin-layer as well as observe the color changes of chicken innards.  The study was conducted by an experimental method with two treatments, namely drying temperature and innards type.  The analyses carried out are water content, equilibrium water content (Me), drying constant (k), protein, and color. From the results of the study, it was found that the type of innards (gizzard, liver, and intestine) affects the drying time, final water content, protein, and color but does not affect the equilibrium water content (Me), and the drying constant.  While the drying temperature used affects all observed parameters.  High temperatures (90°C) produce brighter colors because the drying process is shorter. Keywords: Chicken innards, Color, Layer Drying, Thin Protein.
Rancang Bangun Alat Pengupas Jengkol (Pithecellobium jiringa) Semi Mekanis Muhammad Yasir Arafat; Tamrin Tamrin; Winda Rahmawati; Warji Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): March 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v2i1.6716

Abstract

Research on jengkol peeling aims to facilitate in stripping effectively, efficiently and also minimize the organs of the body namely the injured finger at the time of stripping of the jengkol fruit. Testing this tool uses 18 samples of jengkol fruit divided into 2 types namely young and old, with diameters small, medium and large. The parameters observed in this study are the performance of the jengkol peeling tool and the success of stripping. The results of this study showed that the capacity of stripping small young jengkol fruit is 540 pieces per hour and the percentage of fruit peeling success is 100%, for young jengkol medium capacity is 300 pieces per hour and the success of stripping fruit skin is 94% and for young jengkol the capacity is 300 pieces per hour and the success of stripping 94%. Meanwhile, the small old jengkol fruit is 780 pieces per hour and the success of stripping the skin is 100%, for the old jengkol is 420 pieces per hour and the success of stripping 95% and for the large old jengkol is 300 pieces per hour and the success of stripping is 100%. Keywords: Design Build, Jengkol, Skin Jengkol.
Mempelajari Pengeringan Lapis Tipis Pisang Ambon Linasari Linasari; Tamrin Tamrin; Winda Rahmawati; Sapto Kuncoro
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): Maret 2023
Publisher : abe.fp.unila.ac.id

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Abstract

This research aims to study the effect of temperature and banana varieties on changes in physical and chemical properties of banana’s sale after drying.  The study was conducted by an experimental method with two treatments namely drying temperature and banana varieties.  The parameters observed were initial water content, equilibrium water content (Me), drying constants (k), vitamin C, and color.  The results showed that the banana varieties (Green Ambon and White Ambon) did not affect the drying time, equilibrium water content (Me), and drying constants but did affect the final water content, vitamin C, and the panelists' preference level towards the sale colors of bananas produced.  While the drying temperature used affects all observed parameters.  Low temperature (± 50 ℃) is the optimal temperature because the temperature produces yellowish-brown banana color (Cinnamon) on both banana varieties with a preference level of 44.45% very like, the final water content of 15.28% bb with a long drying time of 38.67 hours on Green Ambon bananas, while on White Ambon bananas are 55.56% like, the final water content of 16.55% bb and drying time of 38.50 hours. Keywords: Banana Sale, Chemical Properties, Drying, Physical, Thin Layer.
Modifikasi Lanjut Alat Pemipil Jagung Semi Mekanis Muhammad Wahyudi GP; Tamrin Tamrin; Winda Rahmawati
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): Maret 2023
Publisher : abe.fp.unila.ac.id

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Abstract

Corn sheller is a tool designed to improve the results of shelled corn. Based on previous research tests, several obstacles and weaknesses were found in the tool, namely the large corn cobs were stuck and the lever rotation felt heavy. To overcome this problem, it is necessary to modify the corn sheller. The method in this study included modification of a semi-mechanical corn sheller and experiments on a semi-mechanical corn sheller. Testing the performance of the corn sheller was carried out by calculating the value of the parameters including the working capacity of the machine (kg/hour), the amount of shelled corn (%), and the amount of corn that was not shelled (%) which was tested on a semi-mechanical corn sheller with 3 Repeat and add different amounts of corn. The semi-mechanical corn sheller was successfully modified and a prototype of a semi-mechanical corn sheller with dimensions of 30 cm x 30 cm x 171cm was made, by reducing the sheller gear cylinder to 34.16 inches before modifying it to 73.3 inches and changing the sheller teeth to 4 before being modified. 8 gear modification. The sheller with 4 teeth with input of 2 cobs is the sheller with the most shelled results, namely 94% and only 6% is not shelled. The sheller with 1 corn cob was the sheller with the lowest yield, namely only 71.48% and the sheller with 3 corn cobs was 77.40%. The highest work capacity in this semi-mechanical corn sheller is found in 4 teeth, which is 45.81 kg / hour Keywords:  Corn, Machine Sheller, Modifications, and Serration. 
Pengaruh Ukuran Partikel dan Perekat Taipoka Terhadap Sifat Biopelet dari Limbah Serbuk Gergajian Dea Permatasari; Winda Rahmawati; Agus Haryanto
Jurnal Agricultural Biosystem Engineering Vol 2, No 2 (2023): June 2023
Publisher : abe.fp.unila.ac.id

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Abstract

Biopellets from sawdust can be an alternative solution for dealing with sawn waste. This study aims to determine the effect of sawdust particle size and adhesive content on the characteristics of the resulting pellets. The study was conducted in a completely randomized two-factor design. The first factor was particle size which consisted of 4 levels, namely fine, medium, coarse, and mixed. The second factor was the tapioca flour as adhesive material consisted of 3 levels, namely 10%, 15% and 20%. Pellets were made using a single die with a diameter of 8 mm which was pressed using a hydraulic jack with a capacity of 5 tons. Parameters to be measured included moisture content, calorific value, ash content, density, and pellet strength (durability index). The raw material of wood sawdust has physico-chemical characteristics including 9.4% moisture content, 6.04% ash content, and 18.58 MJ/kg calorific value. The results showed that pellets had specific gravity between 1.018-1.086 kg/L, moisture content between 13.26-14.42%, and ash content between 0.98-2.42%. The resulting pellets have an average strength of more than 99%. Keywords:  Biopellet, Calorific Value, Pellet Characteristics, Wood Sawdust.
Kinerja Industri Kecil Arang Tempurung Kelapa Nabila Dea Fadila; Winda Rahmawati; Siti Suharyatun; Agus Haryanto
Jurnal Agricultural Biosystem Engineering Vol 2, No 2 (2023): June 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i2.7484

Abstract

Charcoal production from coconut shells is a promising alternative to utilize waste into charcoal products that have high economic value for a small industry. This study aims to determine the feasibility of a small-scale charcoal business that utilizes coconut shell waste. The research was carried out in January 2022 - June 2022 in the Tunas Mandiri coconut shell charcoal industry in Ambarawa Village, Pringsewu Regency. Field observations and sampling were carried out for three times. Parameters observed included process capacity, yield, characteristics of charcoal (density, moisture content, ash content, water absorption, calorific value), and economic analysis of the charcoal industry. The results showed that the Tunas Mandiri charcoal small industry produced two types of coconut shell charcoal, namely low quality charcoal and vacuum charcoal. Vacuum charcoal has good quality, namely water content 8.49%, ash content 2.04%, and calorific value 7475.00 cal/g (meeting the quality requirements of SNI No. 0258–79), while low quality charcoal has a moisture content of 29.92%, ash content of 3.72 %, and the calorific value is 6518.64 cal/g (does not meet the requirements of SNI No. 0258–79). The results showed that the shell charcoal business was economically feasible to run with a fairly high profit reaching Rp. 1,652,666.67 for each charcoal production process for 3-4 days. Keywords:  Charcoal, Coconut Shell, Economy, Profit, Small-Scale Industry.
Co-Authors Adi Saputra Agus Haryanto Annisa Fitriani Asropi Asropi C. Sugianti Dea Permatasari Disca Anggi Pratiwi Dwi Dian Novita Elhamida Elhamida Fadhlilla Monica Rahmah Febryan Kusuma Wisnu Firmansyah Ully Pratama Irfan Rosadi Komang Muliandre Utama Linasari Linasari Mia Anjelina Sitepu Muhamad Nurdin Yusuf Muhammad Wahyudi GP Muhammad Yasir Arafat Nabila Dea Fadila Nur Oktavia Rakha Adipa S. Suharyatun Sandi Asmara Sapto Kuncoro Siti Suharyatun Sugeng Triyono Tamrin, Tamrin Tharry Yassa Warji Warji Yuyun Ari Trisnawati