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All Journal Indonesian Journal of Agricultural Science Jurnal Teknologi Pertanian REKAYASA Journal of Education Technology Information Social Sciences and Health
Puji Widodo
Indonesian Center for Agricultural Engineering Research and Development
Agriculture, Biological Sciences & Forestry Computer Science & IT Education Electrical & Electronics Engineering Engineering Neuroscience Nursing Physics Public Health

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THE ROLE OF POSTHARVEST MACHINERIES AND PACKAGING IN MINIMIZING AFLATOXIN CONTAMINATION IN PEANUT Paramawati, Raffi; Widodo, Puji; Budiharti, Uning; ., Handaka
Indonesian Journal of Agricultural Science Vol 7, No 1 (2006): April 2006
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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Abstract

As a tropical country with relatively high humidity and temperature, Indonesia is struggling with aflatoxin which frequently contaminates peanut. Aflatoxin is a carcinogenic toxic substance that could cause liver cancer. Due to the increasing concern on food safety, the Indonesian Drugs and Foods Agency specifies the maximum aflatoxin allowed in peanut as much as 20 ppb. However, researches showed that aflatoxin contamination in peanut in Indonesia is much higher than the threshold. The study was carried out to observe the effect of using postharvest machineries and packaging  treatments on aflatoxin contamination in peanut. Reduction of postharvest processes was conducted by using series of machineries, e.g. thresher, dryer, and sheller. Packaging treatments, e.g. vacuum plastic pack, hermetic glass chamber, and polyethylene (PE) plastic wrap were carried out during storage at ambient temperature (25-27°C). The results showed that using machineries in postharvest handling produced peanut free from aflatoxin contamination. However, without effective packaging, the aflatoxin level would increase during storage. Hermetic packaging could protect peanut from the mold as indicated by low level of aflatoxin contamination.
Modification of Dry System Cotton Delinter to Increase Machine Capacity Fatah, Gatot Suharto Abdul; soebandi, Soebandi; Lutfi, Musthofa; Widodo, Puji
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Dry system delinter machine designed by Indonesian Agency for Agriculture Research and Development, Serpong, Indonesia in cooperation with Indonesian Tobacco and Fiber Crops Research Institute, Malang, Indonesia has managed to assemble a seed processing equipment delinter dry system using nitric acid. The advantages of this tool are : the process is shorter (only 2-3 hours), no sunlight compared to wet systems (sulfuric acid) which will take approximately 2-3 days and does not pollute soil and water environments. But the tool still has a weakness, where the machine is not used anymore because delinter dimensions of the machine is too big. In addition there are the seeds of cotton delinted crust layer due to heating at the contact of nitric acid vapor to cotton seeds  rudimentary. It is therefore necessary modifications to the engine of delinter the dry system. The results have been obtained by modification of the engine delinter dry system that is able to clean the rest of cotton with good results. It has also  improved capacity of 120 k /h to 150 kg/hour. Nitric acid vapor has been wetting the rest can be directed to the distillation, so as not to endanger the operator. Nitric acid requirements prior to 1 L to 120 kg of seed cotton, can be saved to 0.9 L for 150 kg of seed cotton. Engine capacity can be increased of 25% and the nitric acid need to save as much as 35%.Keywords: delinter dry systems, cotton, nitric acid vapor
Sinergitas Kementerian dan Lembaga dalam Mengantisipasi Konflik di Laut China Selatan Setiowati, Renny; Jati, Sundring Pantja; Widodo, Puji; Suharjo, Bambang
Rekayasa Vol 14, No 3: Desember 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i3.12577

Abstract

The South China Sea is one of the epicenters of conflict in the 21st century. The South China Sea area includes waters and land located in the archipelago of two large islands, namely the Spratlys and Paracels, as well as the banks of the Macclesfield and Scarborough Reef Rivers which stretch from Singapore, from the Malacca Strait to the Taiwan Strait. As this vast territory has often been subjected to successive control by neighboring rulers, several countries, such as the People's Republic of China (PRC), Taiwan, Vietnam, the Philippines, and Brunei Darussalam, have engaged in confrontational attempts to claim, over large parts of the entire territory. . While on the one hand Indonesia supports the prospect of peace in the South China Sea for economic development and domestic stability, Indonesian policymakers are concerned about China's interpretation of its South China Sea claims, which also includes reserves of natural gas and other natural resources. inside it. On the other hand, Indonesia is committed to defending the rights of the archipelagic state as stated in UNCLOS.
Utilization of Microfiber Waste as Material to Add Paving Block Based on Compressive Strength and Absorption Testing Fadlila, Feny Ratna; Amalia, Fiki Rika; Susanti, Riza; Widodo, Puji
Journal of Education Technology Information Social Sciences and Health Vol 1, No 2 (2022): November 2022
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v1i2.147

Abstract

Along with the implementation of infrastructure development, the need for building materials in Indonesia will continue to increase. Building materials themselves are generally sourced from Indonesia's natural resources (SDA). But lately people have an interest in the use of environmentally friendly products. Seeing these two things gave rise to new thoughts to replace some of the aggregates in paving blocks using microfiber waste where microfiber waste is synthesis waste that is difficult to recycle. Experimental studies were chosen as a method in this study which was carried out directly and objectively. This study used a percentage of 0%; 0,25%; 0,5%; 0.75%, and 1% which results in a compressive strength value of 34.03 Mpa; 25.72 Mpa; 34.12 Mpa; 29.29 Mpa; and 23.66 Mpa. The optimum value of the compressive strength of the paving block was obtained at a percentage of 0.5% which is 34.11 Mpa. As well as producing a water absorption value of 4.42%, each of which produces a value of 4.42%; 4,34%: 5,09%; 4.78% which is included in the B quality category while the 1% percentage of 6.7% is included in the C quality category.
Co-Authors Amalia, Fiki Rika Fadlila, Feny Ratna Gatot Suharto Abdul Fatah Handaka . Jati, Sundring Pantja Musthofa Lutfi Raffi Paramawati Setiowati, Renny Soebandi Soebandi Suharjo, Bambang susanti, riza Uning Budiharti