Article Per Year (5 Year)
p-Index From 2019 - 2024
2.391
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Industri Pertanian E-jurnal Agro-Industri Indonesia Sodality: Jurnal Sosiologi Pedesaan Forum Pasca Sarjana Bumi Lestari International Journal of Science and Engineering (IJSE) Agrointek JAM : Jurnal Aplikasi Manajemen SODALITY: Jurnal Sosiologi Pedesaan Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Kimia dan Kemasan Jurnal Aisyah : Jurnal Ilmu Kesehatan Jurnal Riset Teknologi Pencegahan Pencemaran Industri Jurnal Risalah Kebijakan Pertanian dan Lingkungan Jurnal Kimia dan Kemasan
Nastiti Siswi Indrasti
Departemen Teknologi Industri Pertanian IPB
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary

Published : 38 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 19 Documents
Search
Journal : Jurnal Teknologi Industri Pertanian

 1   2 
PEMULIHAN MINYAK SAWIT DARI SPENT BLEACHING EARTH DENGAN METODE EKSTRAKSI REFLUKS Muslich; Sri Utami; Nastiti Siswi Indrasti
Jurnal Teknologi Industri Pertanian Vol. 30 No. 1 (2020): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2020.30.1.90

Abstract

Spent Bleaching Earth (SBE) merupakan limbah hasil pemucatan minyak yang mengandung 20-40% minyak sehingga perlu dilakukan pemulihan. Tujuan penelitian ini untuk menganalisis pengaruh rasio bahan/pelarut terhadap rendemen dan mutu minyak serta mendapatkan perlakuan terbaik dalam proses ekstraksi minyak dari SBE. SBE yang digunakan berasal dari proses pemucatan crude palm oil (CPO) (bahan A) dan SBE dari proses pemucatan refined bleached deodorized palm oil (RDPO) yang telah disimpan selama tiga bulan (bahan B). Proses ekstraksi menggunakan metode refluks dengan pelarut heksan teknis selama 3 jam. Penelitian ini menggunakan rancangan acak lengkap faktor tunggal dengan perlakuan rasio bahan SBE/pelarut (1:4, 1:6, 1:8) (b/v). Hasil penelitian menunjukkan karakteristik sampel A memiliki kadar minyak 17,17%, kadar abu 31,27%, kadar volatil 33,49%, pH 3,21, dan kadar air 0,72%. Sampel B memiliki kadar minyak 38,28%, kadar abu 48,33%, kadar volatil 47,33%, pH 7,75, dan kadar air 1,00%. Rasio antara bahan sampel A terhadap volume pelarut mempengaruhi rendemen dan densitas minyak, sedangkan rasio antara bahan sampel B terhadap volume pelarut hanya mempengaruhi densitas minyak. Perlakuan terbaik untuk rasio bahan terhadap volume pelarut sampel A adalah 1:8 dengan menghasilkan rendemen minyak tertinggi 88,31%. Minyak yang dihasilkan memiliki bilangan asam 84,44 mg KOH/g, densitas 0,89 g/cm3, viskositas 4,91 cSt, dan bilangan iod 48,07 g iod/100 g. Rasio bahan terhadap volume pelarut terbaik untuk sampel B sebesar 1:8 dengan rendemen minyak tertinggi yaitu 75%. Minyak yang dihasilkan memiliki bilangan asam 2,77 mg KOH/g, densitas 0,87 g/cm3, viskositas 4,36 cSt, dan bilangan iod 40,61 g iod/100 g. Keywords: extraction, palm oil, recovery, reflux, spent bleaching earth
KINERJA KARBON AKTIF DARI KULIT SINGKONG DALAM MENURUNKAN KONSENTRASI FOSFAT PADA AIR LIMBAH LAUNDRY Illah Sailah; Fitri Mulyaningsih; Andes Ismayana; Tyara Puspaningrum; Anis Annisa Adnan; Nastiti Siswi Indrasti
Jurnal Teknologi Industri Pertanian Vol. 30 No. 2 (2020): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2020.30.2.180

Abstract

Cassava peel has high carbon content. It becomes potential as an adsorbent in adsorbing laundry phosphate compounds. Utilization of cassava peel into activated charcoal is an effort to reduce waste from the cassava processing industries. This study used two types of activated carbon from cassava peel, i.e. acid activated charcoal using HCl 0.4 M and alkaline activated charcoal using KOH 0.4 M. The objectives of this research were to determine: (1) the optimum contact time of adsorption at 30, 60, 90, 120, 150, and 180 min treatment time; (2) the optimum pH value of adsorption at pH 4, 6, 8, and 10; and (3) the adsorption capacity using adsorbent concentration treatment of 0.5%, 1%, 1.5%, 2%, and 2.5% (w/v). The experimental design used was a Single Factor Randomized Block Trial Design, ANOVA-DNMRT statistical analysis, and linear graphic for descriptive analysis. The analysis of the activated charcoal showed that water contents of the acid activated charcoal and the alkaline activated charcoal were 3.49% and 2.89%, respectively; the ash contents were 6.78% and 9.03%, respectively. The water content and ash content meet the standard of SNI 06-3730-1995. The performance test showed that the optimum contact time and pH of acid activated charcoal were 30 min and pH 4, while the alkaline activated charcoal was 90 min and pH 6. The adsorption capacity of acid active charcoal was 0.26 mg/g and the adsorption capacity of alkaline active charcoal was 0.49 mg/g. Activated carbon from the cassava skin can be used as an adsorbent to reduce phosphate concentrations in laundry waste. Keywords: activated charcoal, adsorption, cassava peel, laundry waste, phosphate
MATHEMATIC MODEL OF HIDROLYSIS PROCESS FROM BANANA TREES CELLULOSE TO GLUCOSE BY USING LIQUID ACID CATALYST Silvester Tursiloadi, Galih K. Sanjaya dan Nastiti Siswi Indrasti2
Jurnal Teknologi Industri Pertanian Vol. 19 No. 3 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

 Banana trees are rich of cellulose and a potential source for producing glucose. The aim of the research was to develop a mathematic model of banana tree fiber hydrolysis by using sulfite acid as catalyst. The concentratios of the acid catalyst were 0.25 M, 0.5 M, and 1M at temperature of 85 oC and 100 oC. The concentration of acid catalyst and the reaction temperature were varied to determine the activation energy that might be affected by the addition of acid catalyst. The sugar concentration was measured as an hydrolysis parameter. The concentration of reducing sugar produced during the hydrolysis process was also measured to develop the mathematical model of hydrolysis process. The values of determination coefficient (r2) from mathematical model of kinetic reaction were more than 0.8. The kinetic model was valid for concentration range from 0.25 M to 1.5 M. Keywords: mathematical model, determination coefficient, hydrolysis, banana trees, liquid acid catalyst
PENYERAPAN LOGAM Pb DAN Cd OLEH ECENG GONDOK : PENGARUH KONSENTRASI LOGAM DAN LAMA WAKTU KONTAK Nastiti Siswi Indrasti, , Suprihatin, Burhanudin dan Aida Novita
Jurnal Teknologi Industri Pertanian Vol. 16 No. 1 (2006): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTThere have been many research on heavy metal removal using aquatic plant. This research was conducted using Eceng Gondok (Eichhornia crassipes) to absorb and accumulate Pb and Cd in a single mixed of them (Pb+Cd).  Initial heavy metals concentrations used in this research were 0.5, 1.0, 3.0, 5.0 and 10.0 mg/l and contact period of 15 days.  The result indicated that the rate of absorption and accumulation of mixed heavy metals (Pb+Cd) was higher compared to single heavy metal.  The highest removal efficiencies for Pb (single), mixed (Pb+Cd) and Cd (single) were 88.10%, 86.06% and 85.83% respectively.  Heavy metals were accumulated more in the root of Eichhornia crassipes than in the tissues (stem and leave).  Heavy metals accumulation in the root for mixed (Pb +Cd), Pb (single) and Cd (single) were 21628 mg/kg, 16644 mg/kg, and 14057 mg/kg respectively, while heavy metals accumulation on plant tissues (stem and leaves) for mixed (Pb+Cd), Pb (single) and Cd (single) were 1305 mg/kg, 620.5 mg/kg, and 600.5 mg/kg. It is concluded that the higher the initial concentration of heavy metal in the waste water, the more metals can be absorbed by Eichhornia crassipes. The longer contact period, the more metals could be adsorbed too. Key words: Pb and Cd metals, consentration and contact period
ADSORPSI LOGAM BERAT SENG (Zn) DENGAN MENGGUNAKAN AKAR RAMBUT Solanum nigrum L GALUR A4 KERING TERIMOBILISASI DALAM Na-alginat Nastiti Siswi Indrasti, Muhammad Ahkam Subroto dan Gun Gun Gunawan
Jurnal Teknologi Industri Pertanian Vol. 15 No. 1 (2005): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTRoot tissue of Solanum nigrum L A4 strain was found to adsorb heavy metal especially Zinc (Zn).  Compared with activated carbon used as adsorbent on industrial waste water treatment process, the adsorption by root tissue of Solanum nigrum L was higher. The adsorption of Solanum nigrum L was represented by Langmuir and Freundlich isotherms equation. Ground powder of Solanum nigrum L was immobilized by natrium alginate for a practical use.  Zinc  concentration adsorbed by immobilized Solanum nigrum L were higher than ground powder form.  The adsorption capacity shows the capacity of the adsorbent used.  It was calculated through dividing adsorbat (mg) with the weight of the adsorbent (gr).  Even the concentration of zinc  adsorbed by immobilized beads was higher, the adsorption capacity of ground powder form of Solanum nigrum L was higher then immobilized beads.  It might be caused by the natrium alginate which also adsorbed zinc and formed higher weight of adsorbent, and implies that polymer used for immobilization creates a binding coated on the Solanum nigrum L  ground powder surface.Key words : adsorption, plant tissue, zinc, immobilization
APLIKASI LINEAR PROGRAMMING DALAM FORMULASI PUPUK ORGANIK BERBASIS KOMPOS UNTUK BERBAGAI TANAMAN Nastiti Siswi Indrasti, Purwoko dan Suherman
Jurnal Teknologi Industri Pertanian Vol. 15 No. 2 (2005): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTTo support Indonesian organic agricultural system that will be started in 2010, fertilizing will be done with organic fertilizer. The function of fertilizer is to fulfill the plant nutrition. The needs of nutrition is different from plant to plant so it is necessary to formulate the organic fertilizer to balance the nutrition. The most needed nutrition for plant consists of N, P and K. The formulated organic fertilizer were applied for  mango, chili, rose, paddy, oil palm, and ginger.Materials which were used to formulate organic fertilizer were compost (X1), cow manure (X2), rock phosphate (X3), and chaff ash (X4). Method which was used for formulated organic fertilizer was linear programming (LP). The objective function was to minimize the cost that was based on each material cost. The constrain function in the left side was  content of N, P and K dry basis for each material while in the right side was the needs of plant’s N, P, and K nutrition per hectare.The result of problem solving with LINDO program was : 4 898.00 kg/ha X1, 2 367.60 kg/ha X2 and                        1 808.89 kg/ha X3 for mango’s formula; 5 296.08 kg/ha X1, 1 465.70 kg/ha X2 and 4 325.93 kg/ha X3 for chili’s formula; 7 450.14 kg/ha X1, 6 462.52 kg/ha X3 and  1 045.98 kg/ha X4 for rose’s formula; 5 088.26 kg/ha X1, 744.28 kg/ha X3 and 1 725.96 kg/ha X4 for paddy’s formula; 2 943.88 kg/ha X1, 4 646.32 kg/ha X3 and 6 520.57 kg/ha X4 for oil palm’s formula; 23 631.42 kg/ha X1, 19 311.75 kg/ha X3 and 2 479.06 kg/ha X4 for ginger’s formula.The NPK content of the formulated organic fertilizer can be determined with mathematic calculation, but to determine the real NPK content must be tested in laboratory. The result of NPK content by calculating and the result from laboratory test have relatively small differences, that is about 0% to 8.33%.Key word : organic fertilizer, compost, plant nutrition, linear programming
PENGHILANGAN GAS SO2 (SULFUR DIOKSIDA) DENGAN TEKNIK BIOFILTER MENGGUNAKAN Thiobacillus sp. PADA MEDIA SERBUK GERGAJI, KOMPOS DAN TANAH Nastitit Siswi Indrasti, Mohamad Yani dan Sugyanto P. Manik
Jurnal Teknologi Industri Pertanian Vol. 14 No. 3 (2005): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTSulphur dioxide is one of the hazardous substances. Most of SO2 is emitted from oil burning. SO2 was effectively removed by biofilter technique using Thiobacillus sp. in compost, saw dust, and top soil media. On the biofilter without Thiobacillus sp.with the inlet concentration of  SO2 2396,10 µg/m3; the saturated time is shorter than that on the biofilter with Thiobacillus sp. addition. Saturated time without Thiobacillus sp. in the compost biofilter was a 12 hour, in top soil biofilter was 18 hours, and in the saw dust biofilter was 0,5 hoursThe removal capacity of SO2 with Thiobacillus sp. in the compost biofilter was 4,12 mg-S/ /kg compost-dayl, while in the biofilter top soil was 3,12 mg-S/kg top soil-day. Thiobacillus sp. addition in the saw dust biofilter did not affect the ability of SO2 degradation. There were 3 levels of SO2 inlet concentration, ie: 2396,10 µg/m3, 4632,29 µg/m3, and 9331,68 µg/m3. Compost biofilter effectively worked in 19 days while top soil biofilter  worked in 22 days. Saw dust was saturated at the first day of the process. Keywords : Biofilter, Thiobacillus sp., SO2 degradation, compost, top soil, saw dust
PENGEMBANGAN MEDIA TUMBUH ANGGREK DENGAN MENGGUNAKAN KOMPOS Nastiti Siswi Indrasti, dan Rio Reyno Elia
Jurnal Teknologi Industri Pertanian Vol. 14 No. 2 (2004): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTCompost can be utilized as organic fertilizer and orchid’s growth media as well. In general, the objective of this research was to develop orchid's growth media from compost. The specific objectives of this research was : 1) to conduct the composting process using windrow techniques from buffalo manure, rice straw, coffee hull and leaf. 2) to investigate the effect of the compost and clay mixture, heating time and temperature to the physical and nutrient quality of the orchid’ growth media.The orchid's growth media consist of compost, clay and water  as raw material. The dimension of the orchid’s media was 10 x 10 x 4 Cm3. The orchid's growth media was made through manual's forming process and heating in oven. The used experimental design was completely randomized block factor design with two times replication. The ratio of compost to clay was 2:3; 2:2 and 3:2; the heating time factor was 2, 3 and 4 hours, and the heating temperature factor was 70, 80 and 90 oC. The best combination treatment was achieved by a mixture of compost and clay with the ratio of 2:2, heating time of 2 hours at 70 oC . The best combination treatment showed the value of pressure of 16,95 Kgf/Cm2; weight of 504,45 g; N-Total 0,68 %; P2O5 0,26 % and K2O 1,74 %.Key words :  Compost, Windrow Techniques, Orchid’s Growth  Media, Clay
KARAKTERISASI MEMBRAN FILTRASI DARI KHITOSAN DENGAN BERBAGAI JENIS PELARUT Nastiti Siswi Indrasti, Suprihatin dan Feny Silvia
Jurnal Teknologi Industri Pertanian Vol. 13 No. 3 (2004): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTMembrane is a semi-permeable thin layer that can be used to separate components by holding and flowing certain component through pores. The performance of membrane is often evaluated by two parameters, namely flux and rejection. The objective of the paper is to present characteristics of chitosan membrane made using various chitosan solvents and chitosan concentrations. Experimental results showed that rendement of chitosan from shrimp shell was 15.3% with mouisture of 5.5% and ash content of 0.72%. Membrane made using formic acid and chitosan concentration of 7% yielded the highest flux of 285 L/m2h for clean water, flux 52 l/m2h for albumin solution, 144 L/m2h for starch suspension, and 222 l/m2h for glucose solution. The highest rejection was achieved by membrane made from acetic acid with chitosan concentration of only 27 percent for albumine solution. Key words: membrane filtration, chitosan
THE COMBINATION OF CHITOSAN-NUTMEG EXTRACT FOR THE NATURAL ANTIBACTERIA AND PRESERVATIVE AGENTS OF RED SNAPPER (Lutjanus sp.) FILLET Nastiti Siswi Indrasti, Suprihatin dan Wahyu Kamal Setiawan TIP
Jurnal Teknologi Industri Pertanian Vol. 22 No. 2 (2012): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACT   Chitosan is produced by deacetylation of chitins which are found in the outer shell of crustacea such as shrimps and crabs. The ability of chitosan as an agent of antibacte ria depends on the degree of deacetylation. This experimental work aimed to study the possibility of chitosan as natural antibacteria of red snapper fillet. The experiments were carried out   in three steps. The first step was the production of chitosan from shrimp shells. The produced chitosan was analyzed by FTIR (Fourier Transform Infra Red) and proximate analysis. The second step was investigation of antibacterial  activity of chitosan and its combination with nutmeg extract. The concentrations of chitosan were  varied 1%; 1.5%; and 2% (w/v) while nutmeg extract were  0%, 5% and 10%. The final step was application of the best combination for red snapper fillet preservation by the dipping method. The chitosan produced in this research meet the commercial standard: particle size, colour of extract, water content (7.89%), ash content (0.79%), and degree of deacetylation (73.86%). Combination of chitosan 1.5% and nutmeg extract 10% showed synergic inhibition againts Escherichia coli with an inhibition diameter of 34.60 ± 0.57 mm. Combination of 1.5% chitosan and 10% nutmeg extract inhibited  the growth rate of bacteria on red snapper fillet (Sig
Co-Authors Aceng Kurniawan Aditya Wahyu Nugraha Anas M. Fauzi Andes Ismayana dan Moh. Rizal Afriyanto Anis Annisa Adnan Arya Hadi Dharmawan Azhari Muslim Azhari Muslim Baherem Baherem Bambang Prasetya Bambang Prasetya Bambang Prasetya Beta Dwi Utami Chandra Indrawanto DADANG DADANG Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Dodik Ridho Nurrochmat Dwi Setyaningsih Dwindrata Basuki Aviantara Dyah Kharismawati Eriyatno . Farah Fahma Dept. TIN Fitri Mulyaningsih Gunawan Hadiko Handojo Kristyanto Hanifah Ulfa Azzahro Hermawan Prasetya dan Taufik Djatna Illah Sailah Khaswar Syamsu Kiki Yulianto Lanjar Sumarno Lanjar Sumarno Mia Ulumiati Putri Muhammad Syukur Sarfat Muslich Nadia Athirafitri Niza Erica Nurul Izzah Aulia Nurul Taufiqu Rochman Nurul Taufiqu Rochman Ono Suparno dan Eko Wahyudi Sapta Raharja Silmi Azmi Siti Agustina Siti Agustina, Siti Siti Aminatu Zuhria Sri Utami Sudirman Sudirman Sukardi Sukardi Sukardi Sukardi Suprihatin . Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin, Mohammad Yani, dan Dewi Ratnasari Sutrisno . Syamsul Maarif Syarifa Arum Kusumastuti Syarifa Arum Kusumastuti Syarifa Arum Kusumastuti, Syarifa Arum Tajuddin Bantacut Trina Ayuni Tyara Puspaningrum Tyara Puspaningrum Tyara Puspaningrum Yusman Syaukat Yusman Syaukat