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RTD Wisnu Broto
Jurusan Teknik Kimia PSD III Teknik, UNDIP Semarang
Computer Science & IT

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STUDI AWAL PEMBUATAN ASAM LEMAK SECARA ENZIMATIK DARI BUAH SEGAR KELAPA SAWIT Yulianto, Mohammad Endy; Broto, RTD Wisnu; Pudjihastuti, Isti
METANA Vol 1, No 2 (2004): Desember 2004
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1681.018 KB) | DOI: 10.14710/metana.v1i2.3853

Abstract

Abstract Vegetable oil is one of plantation commodity, having advantages either as food or olechemical. One of the connecting bridges between vegetable oil and oleochemical industry is the conversion of vegetable oil to fatty acid. The supply of fatty acid in indonesia by import. Beside the promising market in global trading indonesia has the superiority in raw material supply for fatty acid  production. In indonesia, the most raw materials used for producing fatty acid naturally include crude palm oil (CPO), palm kertnel oil (PKO), and coconut oil (CNO). Fatty acid production by enzymatic from palmfruit can be reduce investation and operation cost. The objective of this research is finding a new way of product fatty acid by direct separation from palm fruit.  The research is information of process condition in fatty acid production by enzymatic from palm fruit, by quality of fatty acid is used in cosmetics, plastic, tyre, PVC, stabilizer, paint and soap industries. The variables studied in this process include temperature, pH, and water consentration. Yield of fatty acid is analysed for quality and quantity. The quality analysis include water consentration, acid number, iod number and perokside number. The quantity analysis is used titration or chromatografi gas. The research shows that the enzyme lipase action increases by temperature increase, and optimum temperatureof lipase from palm fruit for hydrolysis reaction is 35o C. If used buffer pH of reaction, fatty acid production can be increase. Beside that, water consentration increases by fatty acid production increase to. Keywords : fatty acid, enzyme, palm fruit
UJI EFIKASI FORMULASI RODENTISIDA CAIR DENGAN BAHAN AKTIF PERMENTRIN DAN MALATHION PADA TIKUS SAWAH, TIKUS RUMAH DAN TIKUS POHON DALAM MENCEGAH PENYAKIT LEPTOSPIROSIS Supriyo, Edy; Pujihastuti, Isti; Broto, RTD Wisnu; Arifan, Fahmi
Gema Teknologi Vol 20, No 4 (2020): October 2019 - April 2020
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (87.772 KB) | DOI: 10.14710/gt.v20i4.29301

Abstract

Mice are the main reservoir in transmitting leptospirosis, which is an infectious zoonotic disease caused by pathogenic leptospira bacteria, so it needs to be controlled effectively. Mice control has been using traps or rodenticides. One of the pesticides available is permethrin and malathion, which has been used as an insecticide. The purpose of this study was to determine the effectiveness of insecticide formulas as rodenticides in killing field mice, house mice, and tree mice. In the research of liquid rodenticide formula, the concentration is 0.025; 0.050 and 0.075% of the active ingredients were tested for efficacy against mice. Data analysis in the form of descriptive. The results showed that the absence of mice that died from these three types of mice, which showed a dose of 0.075%, was too small for mice so that they only experienced seizures. So that further testing is needed to make the killing power more effective on mice.
Co-Authors Edy Supriyo Fahmi Arifan Isti Pudjihastuti Isti Pujihastuti Mohamad Endy Y Yulianto