Totok Herwanto
Universitas Padjadjaran

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AKTIVITAS ANTIOKSIDAN PADA MINYAK BIJI KELOR (Moringa oleifera L.) DENGAN METODE SOKLETASI MENGGUNAKAN PELARUT N-HEKSAN, METANOL DAN ETANOL Sudaryanto Zain; Totok Herwanto; Selly Harnesa Putri
Teknotan: Jurnal Industri Teknologi Pertanian Vol 10, No 2 (2016): TEKNOTAN, November 2016
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (690.386 KB)

Abstract

Saat ini Indonesia menjadi salah satu negara pengekspor biji kelor. Biji kelor merupakan bagian tanaman kelor yang mengandung minyak nabati yang tinggi dan memiliki banyak manfaat terutama bagi kesehatan. Penelitian ini bertujuan untuk mengkaji pemanfaatan biji kelor menjadi minyak dengan potensi kandungan antioksidan sebagai bahan baku industri farmasi dan kimia. Metode penelitian yang digunakan dalam penelitian ini adalah metode eksperimental laboratorium dengan analisis deskriptif. sehingga diharapkan dapat memberikan informasi tentang pemanfaatan biji kelor yang berpotensi sebagai sumber antioksidan alami namun masih minim informasi untuk menjelaskan hal-hal tersebut secara ilmiah. Ekstrak akan diuji menggunakan radikal bebas DPPH (1,1-difenil-2-pikrilhidrazil). Hasil penelitian menunjukan bahwa, etanol merupakan pelarut organik yang dapat menghasilkan rendemen ekstraksi paling tinggi dan kandungan asam oleat yang tinggi pula. Kandungan asam oleat yang dihasilkan pelarut n-hexana dan etanol berturut-turut yaitu 66,8% dan 70,4%.Kata kunci: antioksidan, metode DPPH, minyak biji kelor
Uji Kinerja Mesin Pencacah Plastik (Studi Kasus Bank Sampah Tasikmalaya (BST) di Kecamatan Singaparna, Kabupaten Tasikmalaya) wahyu kristian sugandi; Asep Yusuf; Totok Herwanto; Sidik Maulana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 7, No 3 (2018): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.037 KB) | DOI: 10.23960/jtep-l.v7i3.151-159

Abstract

ABSTRACTGarbage is solid waste, consisting of organic and inorganic substances or materials that are considered to have no longer beneficial and must be managed properly so as not to endanger the environment. Garbage has been a complicated problem especially in big cities. Singaparna, Tasikmalaya  has been produced 154.72 m3 of plastic waste every day. Plastic waste collected by BST is only sort and sold at low prices to the city. To increase the sale value, the plastic waste needs to be chopped in advance. Therefore, the Laboratory of Agricultural Equipment and Machinery FTIP Unpad had developed a plastic waste counting machine to be applied to the community, especially in BST to produce the desired plastic count. However, this machine not yet performance testing data, so it needs to do research regarding performance tests. The purpose of this study is to examine the performance of the plastic counter machine which includes measuring the capacity of the machine, calculating the rendering yield, calculating the length of the enumeration measuring the engine noise level and measuring the engine vibration level. The research method used had descriptive analysis method, it was measuring and calculating the structural components and engine performance. The results of the study in measuring the performance test showed that the actual capacity of the machine was 19.18 kg / hour, the enumeration chopper was 84%, the percentage of plastic chopping length was 86.89%, the noise level was 104.77dB, and the engine vibration was 18.3 mm / s. Key Note : plastic chopper, performance test, tasikmalaya garbage bank