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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Terapan Abdimas Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Al-Daulah : Jurnal Hukum dan Perundangan Islam Biosaintifika: Journal of Biology & Biology Education Journal of Architectural Design and Urbanism Jurnal Riset Akuakultur Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Peternakan (Jurnal of Animal Science) J-3P (Jurnal Pembangunan Pemberdayaan Pemerintahan) Unnes Law Journal Jurnal Pengabdian Masyarakat Indonesia Humantech : Jurnal Ilmiah Multidisiplin Indonesia Jurnal DiMas (Jurnal Pengabdian Kepada Masyarakat) Jurnal Agricultural Biosystem Engineering Open Community Service Journal Jurnal Pusat Akses Kajian Pangan dan Gizi Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Journal of Engineering and Technological Sciences
Winda Rahmawati
Program Studi Teknik Industri Fakultas Teknik - Universitas Diponegoro Jl. Prof. Soedarto, SH Tembalang Semarang 50239 Telp / Fax : (024) 7460052 Email : i_engineering@ymail.com
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Pemanfaatan Limbah Plastik Polyethylene Terephthalate (PET) dan Batok Kelapa Sebagai Bahan Baku Paving Block Utama, Komang Muliandre; Warji, Warji; Rahmawati, Winda; Suharyatun, Siti
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.v2i2.7480

Abstract

In 2021 the total amount of waste from various types of waste in Indonesia alone will reach 68,5 milion tons. Based on these data, as much as 17 percent, or around 11,6 milion tons, was contributed by jenna R.Jambeck from the University of Geogia in 2010, there were 275 tons of plastic waste produced worlwide. Around 4,8-12,7 milion tons of them are waste and pollute the sea. Indonesia itself has a coastal population of 187,2 ,milion which annually produces plastic waste. Around 0,48-1,29 milion tonnes of plastic waste is thought to have polluted the oceans. To overcome this, proper management of plastic waste is needed, one of which is by making paving blocks made from plastic waste. The study aims to determine the characteristics of thr various composition paving blocks according to the Dquality standard, which is used for garden pavements and other uses. In this study, aratio of 1:1:1 was used for plastic, sand, and oil. Then coconut shells were added to the treatment P1 as much as 3%, P2 as much as 6%, P3 as much as 9%, and P4 as much as 12% of the paving block volume paving block quality standardD has requirements, namely the maximum value obtained from the results of the compressive strength test is 10 Mpa and water absorption is 10%. From the result of the research that i did, it was found that the variations in the P treatment were closestto the quality standard D, with a compressive strength test value of 5,84 Mpa. Keywords : Coconut Shells, Paving Blocks, PET, Plastic, Waste.
Pemanfaatan Limbah Serat Kelapa Sebagai Bahan Tambahan Pembuatan Paving Block Rahmawati, Winda; Marcus, Patrice Kevin; Wisnu, Febryan Kusuma; Haryanto, Agus; Telaumbanua, Mareli; Sugianti, Cicih
Jurnal Agricultural Biosystem Engineering Vol 3, No 3 (2024): September 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i3.10161

Abstract

Indonesia is one of the largest coconut producing countries in the world, Lampung Province itself has a coconut plantation area of 91.8 thousand hectares with a production of 81.9 thousand tons in 2021. One alternative of the uses of coconut fiber is as a mixing material for porous paving blocks. This study aims to make porous paving blocks with additional coconut fiber and to determine the physical characteristics of paving blocks with a mixture of coconut fiber. This study used a completely randomized design consisting of 4 treatments and 5 replications with a sample size of 40 pieces divided into destructive and non-destructive tests. The method of making paving blocks in the study was that the fiber was mixed with a mixture of cement and sand, then molded and conditioned for 28 days. The tests carried out were visual tests, water absorption tests, infiltration tests, density tests and compressive strength tests. The results of the study showed that the addition of coconut fiber to the paving block mixture affected the results of the test of the characteristics of porous paving blocks) Keywords: Coconut Fiber, Deformation, Ductile, Infiltration, Pore Space. 
Pengaruh Penambahan Kulit Jeruk Lemon (Citrus limon) pada Pemanfaatan Serbuk Batang Singkong sebagai Obat Nyamuk Bakar Puspita, Ratna; Asmara, Sandi; Rahmawati, Winda; Kuncoro, Sapto
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/jabe.v1i3.6320

Abstract

The abundant amount of cassava stem waste in Indonesia has not been utilized optimally. As an effort to optimize the utilization of cassava stem waste, it is used as a raw material for mosquito coils with the addition of active ingredients as insect repellents. One of the natural insect repellents is lemon peel which contains limonoids as an active substance. In the making processing of mosquito coils, adhesives are also needed. so that the composition of waste cassava stems, lemon peel, and adhesive affects the characteristics of mosquito coils. Important parameters that were observed to obtain the characteristics of mosquito coils were shatter resistance index, moisture content, density, burn duration, smoke distribution, and organoleptic tests.  Result of research of P1 showing until P5 have an effect on burn duration. Weight one mosquito coils at various treatment gyrate 11,39-17,04 and old burn 7,1 hour - 8 hour Keyword: Burn Duration, Lemon Peel, Mosquito Coils.
Modifikasi Lanjut Alat Pemipil Jagung Semi Mekanis GP, Muhammad Wahyudi; Tamrin, Tamrin; Rahmawati, Winda
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/jabe.v2i1.7047

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. 
Mempelajari Pengeringan Lapis Tipis Pisang Ambon Linasari, Linasari; Tamrin, Tamrin; Rahmawati, Winda; Kuncoro, Sapto
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/jabe.v2i1.6873

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.
Pengaruh Ukuran Partikel dan Perekat Taipoka Terhadap Sifat Biopelet dari Limbah Serbuk Gergajian Permatasari, Dea; Rahmawati, Winda; Haryanto, Agus
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.v2i2.7469

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.
Pembuatan Dan Pengujian Pot Organik Berbahan Baku Limbah Batang Singkong Untuk Tanaman Kangkung Darat (Ipomea reptans Poir) Kurnia, Berti; Asmara, Sandi; Rahmawati, Winda; Suharyatun, Siti
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/jabe.v1i3.6337

Abstract

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Kinerja Industri Kecil Arang Tempurung Kelapa Fadila, Nabila Dea; Rahmawati, Winda; Suharyatun, Siti; Haryanto, Agus
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.
Mempelajari Karakteristik Pengeringan Lapis Tipis Jeroan Ayam Sitepu, Mia Anjelina; Tamrin, Tamrin; Rahmawati, Winda; Kuncoro, Sapto
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/jabe.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.
Pengaruh Suhu Penyimpanan dan Varietas terhadap Mutu Buah Tomat Fitriani, Annisa; Tamrin, Tamrin; Rahmawati, Winda; Kuncoro, Sapto
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/jabe.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.
Co-Authors Adipa, Rakha Adyani, Made Ninta Agus Haryanto Agustin, Churia Camelia Ahmad Tusi Amanullah, Deo Arif AMIR HAMIDY Andrea, Nabila Anggraini, Nurvita Anggraini, Serly Annisa Fitriani, Annisa Anwar, Syafina Apriyatama, Muhammad Ivanka Budianto Lanya Cicih Sugianti Dewi Ayu Nur Wulandari Dicky Harwanto Diding Suhandy Dwi Dian Novita Dzafitri, Rizka Elhamida Rezkia Amien Erlangga Erlangga Fadila, Nabila Dea Faizah, Intan Nurul Faridah, Adinda Fitri Nur Fatiha, Syalysia Luna Febryan Kusuma Wisnu Fembriarti Erry Prasmatiwi Fil'aini, Raizummi Fil’aini, Raizummi GP, Muhammad Wahyudi Hidayaturahmah, Rizky Hindyana, Daffa Aqilla INDAH PUSPITASARI Indriyani, Yaktiworo intan kusuma wardani Ivayani, Ivayani June Ekawati Khasanah, Zahrotun khusnul khotimah Kiromah, Isrofiatul Kuncoro, Sapto Kurnia, Berti Kurniawan, Ahmad Ridho Legowo, Rizky Lestari Wibowo Linasari, Linasari Marcus, Patrice Kevin Mareli Telaumbanua Margareta Rahayuningsih Nugroho Edi K Marviana, Dita Muhammad Amin Muharatulloh, Edshafa Nisa, Navira Aura Permana, Adinda Ayisyahni Permata, Suci Indah Permatasari, Dea Pirnando, Heri Podojoyo, Podojoyo Prehatiningsih, Febry Dwi Purba, Rio Edy Saputra Putri, Cahyani Cahyanti Putri, Suci Ananda Rahmah, Fadhlilla Monica Ramdhani, Adean Naufal Ratna Puspita, Ratna Refsya Azanti Putri Rosadi, Irfan Rotua, Manuntun Rusdi Evizal Safitri , Regif Desty Safitri, Regif Desty Salvana, Alsa Diva Sandi Asmara Setiawan, Edo Setiawan, Wahyu Hendi Sifana, Afiqa Najla Sinaga, Intan Kusuma Wardani Sinaga, Sinaga Sitepu, Mia Anjelina Siti Suharyatun Sofari, Herdi Sri Waluyo Sugiyanti, Cicih Sunarti Taat Kuspriyono, Taat Tahegga Primananda Alfath Tamrin Tamrin Taqiyyah Tsamarah, Dinda Tengku Riza Zarzani N Triandini, Heryanti Nur Tsamarah, Dinda Taqiyyah Utama, Komang Muliandre Warji Warji Weisdania Sihite, Natasha Windarto, Seto Wulandari, Safira Zikri Fachrul Nurhadi, Zikri Fachrul