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All Journal Jurnal Kesehatan Masyarakat Indonesia Journal of Renewable Energy, Electronics and Control
Pujianto -
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Public Health

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KONTAMINASI KAPANG Aspergillas sp DAN AFLATOKSIN PADA KACANG TANAH SEBAGAI BAHAN DASAR BUMBU PECEL YANG DIJUAL PEDAGANG KELILING DI KOTA SEMARANG Martini -; Pujianto -; Cindy Kusumawardhani
Jurnal Kesehatan Masyarakat Indonesia Volume 2. No. 1. Tahun 2005
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7540.112 KB) | DOI: 10.26714/jkmi.2.1.2005.%p

Abstract

Background: As a small entrepreneur, pecel vendors do not have much capital to run their business. Therefore, peanuts bought as the base for pecel is low in quality. This low quality peanut is potential to be contaminated by aspergillus sp. Purpose: this research is aimed to see whether there is a contamination of aspergillus sp in peanuts asthe base for making the peanut sauce (bumbu pecel) sold by pecel vendors in the cigt of Semarang. Method: this research is a cross sectional suryey conducted by interviewing 32 pecel vendors. 100 gr ofpeanuts were acquiredfrom the vendors to be examined for the presence of aspergillus sp and a/latoxin. To measure the ability to produce aJlatoxinis by exposing thefungus under ultra violet rays. Results: from 32 surveys, all ofthevendors arefemale, has very low educational level (never have any formal education or only graduated from elementary school). The vendors are not from Semarang and have low understanding in personal hygiene (8,/.2%0). The contamination of aspergillus flavus in peanuts used as the base for peanut sauce has the value of 100% both derivedfrom the low quality peanuts and also from the low level of hygiene among the street vendors. Conclusion: fungus contamination especially aspergillus sp can easily happened in peanuts. There should be an improvement in the level of hygiene and food handling among pecelstreet vendors in Semarang.Keywords : Aspergillus, Aflatoxin, peanuts, pecel
Low Voltage Network Reconfiguration at PLN ULP Rungkut as Load Optimization using the Ant Colony Optimization Method riny sulistyowati; Pujianto -
Journal Renewable Energy, Electronics and Control Vol 5, No 2 (2025): JURNAL JREEC
Publisher : Department of Electrical Engineering, Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jreec.2025.v5i2.8443

Abstract

PLN (Persero) Ltd. Rungkut Customer Service Unit - The high load density and the length of the mangrove feeders, which are quite long, have caused several buses toward the end of the network to experience a voltage drop of 0.9421208 p.u. Therefore, it is necessary to reconfigure the network to overcome and improve the existing voltage conditions as well as optimize the loading on the feeders so that they can be evenly distributed. A comparative evaluation of the calculation of the ant chromosomes used is needed to ensure the disconnection point in reconfiguring the network. An ant colony optimization analysis on this mangrove feeder was simulated using ETAP software. The results of this drop voltage improvement analysis could be used to reconfigure the low-voltage network of mangrove feeders to 0.9933478 p.u. Consequently, it could be precise, reliable, and good at PLN Ltd. ULP Rungkut and obtain load optimization on mangrove feeders.
Co-Authors Cindy Kusumawardhani Martini - Riny Sulistyowati