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Perbandingan Ekstrak Bayam dan Ubi Jalar, Serta Lama Pemasakan terhadap Sifat Fisikokimia Saus Bayam Poppy Diana Sari; Atmiral Ernes; Dwi Rianto
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 6, No 2 (2017)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (826.433 KB) | DOI: 10.21776/ub.industria.2017.006.02.4

Abstract

 AbstrakTujuan penelitian ini adalah untuk mengetahui perbandingan ekstrak bayam dengan ubi jalar dan lama pemasakan perlakuan terbaik berdasarkan uji organoleptik dan pengaruhnya terhadap sifat fisikokimia saus bayam. Penelitian ini dilakukan dengan 2 variabel perlakuan, variabel pertama yaitu perbandingan kadar bayam dengan ubi sebanyak 3 level yaitu 25%:75%, 50%:50%, dan 75%:25% untuk bayam:ubi. Variabel ke dua yaitu efektivitas lama pemasakan dengan 3 level yaitu 5 menit, 7 menit dan 9 menit pemasakan. Pengujian yang dilakukan yaitu dengan cara uji organoleptik yang akan menilai dari segi rasa, warna, tekstur dan kekentalan, hasil terbaik akan diuji sifat fisikokimia dengan parameter kadar air, viskositas, warna, serat dan zat besi (Fe). Dari hasil pengujian organoleptik diperoleh hasil perbandingan dan kombinasi sampel terbaik yaitu A2B2 dengan bayam 50%:50% ubi jalar dengan lama pemasakan 7 menit. Dengan hasil rata-rata warna dengan nilai 8, rasa dengan nilai 8,1, tekstur dengan nilai 7,9 dan kekentalan yaitu 6,8. Dari hasil pengambilan sampel perlakuan terbaik diujikan sifat fisikokimia dengan hasil kadar air 78,86 %, viskositas 17,65 Cp, warna hijau tua gelap berwarna asli klorofil, serat 5,16%, dan kandungan besi (fe) 2,01 mg/100gram.Kata kunci: saus bayam, efektifitas waktu, sifat fisikokimia  AbstractThe aim of this research is to find the spinach extract and sweet potato ratio, cooking time for best treatment based on organoleptic test, and its influence to spinach sauce physicochemical properties. This research was done by 2 treatment variables. The first variable is the spinach extract and sweet potato ratio, with 3 levels treatment, namely 25%:75%, 50%:50%, and 75%:25%.The second variable is cooking time effectiveness with 3 levels treatment, namely 5, 7and 9 minutes. The analyzes was done by organoleptic which was assessed in term of taste, colour, texture and viscousity, the best result obtained then performed physicochemical analyzed by the water contained, viscousity, colour, fibre and iron (Fe) parameter.From the organoleptic analyzes, the bestspinach extract and sweet potato ratio treatment is A2B2 with the ratio of 50%:50% spinach extract:sweet potatowith 7 minutes cooking time. The average colour value of 8, taste value is 8.1, texture value of 7.9, and viscousity value of 6.8. From the best treatment, the physichochemical properties was conductedwith the result 78.86% of water content,viscousity of 17.65 Cp, dark green colour from the clorophyl, fibre of 5.16%, and the Iron (Fe) content of 2.01 mg/100gram.Keywords: physichochemical properties, spinach sauce, time effectiveness 
Biodiesel Production From Sardine Flour Used Cooking Oil Using One Step Transesterification Techniques Atmiral Ernes; Poppy Diana Sari; Rukmi Sari Hartati; I Nyoman Suprapta Winaya
Jurnal Ilmu dan Teknologi Terapan Pertanian Vol 3 No 2 (2019): Journal of Applied Agricultural Science and Technology
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/jaast.v3i2.109

Abstract

Diesel oil demand as energy source at industrial, transportation and electric generating sector are increasing and it resulted with the decreasing of fossil energy source backup. Biodiesel as an alternative energy source to substitute diesel oil can be utilized from used fried oil of sardine flour. The purpose of this research was to develop the technology to convert used fried oil of sardine flour to become biodiesel using one step trans-esterification technic as an alternative of renewable energy source and also to utilize waste of used oil. Biodiesel made using one step trans-esterification technic with NaOH catalyst concentration 0.5; 1.0; 1.5; 2.0 (% m/m) from total weight of oil and methanol. Trans-esterification process run for 30, 60 and 90 minutes at 65 temperature. The biodiesel obtained was analyzed using gas chromatography and mass spectrometer (GC-MS). The quality was determined by comparing its physicochemical properties and compared to the SNI standard 04-7182-2015. The result of GC-MS showed 10 peaks corresponding to ten methyl ester (biodiesel): octanoic acid methyl ester; decanoic acid methyl ester; dodecanoic methyl ester; tridecanoic acid, 12-methyl-, methyl ester; pentadecanoic acid methyl ester; hexadecatrienoic acid methyl ester, 9-hexadecenoic acid methyl ester, 9-hexadecenoic acid methyl ester, trans-13-octadecenoic acid methyl ester, hexadecanoic acid methyl ester. The biodiesel obtained has a density of 908 kg/m3, viscosity of 3.13 mm2/s, acid value of 0.29 mg-KOH/g found in treatment 1.5% NaOH and time process of 60 minutes. Viscosity and acid value were in a good agreement with SNI standard 04-7182-2015. The research shows that used fried oil of sardine flour has possibility as biodiesel source. Keywords: Biodiesel; sardine flour used cooking oil; trans-esterification