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Condition optimization of sea pandan leaves biosorben synthesis and adsorptivity test on chromium and lead metal ions in different kinds of waste Kristianingrum, Susila; Siswani, Endang Dwi; Fillaeli, Annisa
Jurnal Sains Dasar Vol 3, No 1 (2014): Jurnal Sain Dasar
Publisher : Universitas Negeri Yogyakarta

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This study aims to determine whether or not biosorben synthesized from sea pandanus leaves, the influence of the type of acid used, the optimum adsorption efficiency of Cr and Pb metal ions from various wastes, as well as the synthesis results of biosorben character. The subjects were biosorben of sea pandanus Pandanus tectorius types of Javas southern coast. The objects are adsorptive properties and the character of the pandanus sea biosorben synthesized before and after activation. Purposive sampling is used as the sampling technique. The independent variables are the type of activator (HCl and H2SO4) and waste water. The dependent variables are the adsorptive nature and character of the sea pandanus biosorben synthesis results. The study was conducted in three phases, namely the manufacture of biosorben sea pandan leaves, characterization and determination of adsorption efficiency (Ep) biosorben synthesized on metal ions of Cr and Pb in batik waste, leachate, and oil. Qualitative and quantitative analysis are done using Atomic Absorption Spectrophotometer instrument at a wavelength of 357.9 nm for Cr and 217 nm for Pb. Biosorben characterization was conducted on the moisture content, ash content, volatile content, and carbon content compared with SNI 06-3730-1995 and analyzed by FTIR spectra. It is also seen biosorben surface area of synthesized both before and after activation by porosimetry. Biosorben of pandanus sea has to be synthesized. Biosorben synthesized with 5% H2SO4 solution produced optimum Ep for Cr and Pb metal ions from waste leachate obtained are 75.831% and 98.714%. Character biosorben activation results in a solution of 5% HCl and H2SO4 by FTIR have almost similar spectra. Moisture content, ash content, volatile content, and carbon content of biosorben synthesized with 5% HCl and 5% H2SO4 in accordance with SNI 06-3730-1995. Porosimetry characterization of biosorben synthesized before activation is 3.5756 m2 / g, whereas after activation with HCl 5% to 770.7636 m2/g, and after activation with 5% H2SO4 solution become 153.7002 m2/g. Keywords: biosorben, sea pandanus, adsorptivity test, chromium, lead
OPTIMASI DAN MEKANISME REAKSI PEMBENTUKAN KRISTAL MIKROPORI REDOKS TITANIUM SILIKAT TIPE MFI Sutrisno, Hari; ., Suharto; Kristianingrum, Susila
Alchemy Jurnal Penelitian Kimia Vol 4, No 2 (2005)
Publisher : Alchemy Jurnal Penelitian Kimia

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Penelitian ini bertujuan untuk: (1) mempelajari karakter kristal titanium silikat tipe MFI (TS-1), yang meliputi: sistem kristal, parameter kisi, grup ruang, kristalinitas dan kemurnian,  (2)  mengetahui waktu kristalisasi optimum untuk menghasilkan TS-1 yang kaya akan titanium dengan kemurnian dan kristalinitas tinggi dan  (3)  mekanisme reaksi yang mungkin terjadi pada pembentukan TS-1 dari bahan awal tetraetil ortosilikat (TEOS) sebagai sumber silika, tetrapropilamonium (TPAOH) sebagai sumber basa kuartener, air sebagai pelarut, dan sumber titanium dari [Ti8O12(H2O)24]Cl8.HCl.7H2O. Sintesis TS-1 dilakukan melalui reaksi bahan awal pada perbandingan mol : SiO2 : TiO2 : TPAOH : H2O = 1,00 : 0,05 : 0,36 : 35,00 dengan metode hidrotermal. Temperatur kristalisasi pada 423 K, sedangkan waktu kristalisasi bervariasi yaitu 12, 24, 48 dan 72 jam yang disimbolkan sebagai TS-1(12), TS-1(24), TS-1(48), dan TS-1(72). Sintesis TS-1 yang lain,disimbolkan TS-1(24)-0,15 dilakukan pada perbandingan mol bahan awal : SiO2 : TiO2 : TPAOH : H2O = 1,00 : 0,05 : 0,36 : 35,00  pada temperatur kristalisasi 423 K dan waktu kristalisasi 24 jam. Hasil penelitian menunjukkan bahwa semua kristal yang dihasilkan merupakan TS-1 yang memiliki struktur tipe MFI dengan kristalinitas dan kemurnian tinggi. Semua kristal TS-1 yang belum terkalsinasi tersebut memiliki sistem kristal ortorombik dengan ruang Pnma. Waktu kristalisasi yang diperlukan untuk menghasilkan TS-1 dengan kadar titanium terbanyak dalam kristalnya sebesar 2,970% yaitu 24 jam (TS-1(24)). Proses sintesis menggunakan waktu kristalisasi optimum tersebut (24 jam), dihasilkan TS-1 yang memiliki kadar Ti dalam kristal TS-1 yang belum terkalsinasi sebesar 3,111% (TS-1(24)-0,15). Fenomena lain yang terungkap bahwa volume kisi kristal semakin kecil seiring lamanya waktu kristalisasi, hali ini menunjukkan bahwa kristal semakin kompak dan semakin baik karena adanya defek kristal semakin kecil. Mekasnisme reaksi yang terjadi pada preparasi TS-1, diawali melalui proses hidrolisis [Ti8O12(H2O)24]Cl8.HCl.7H2O  dan TEOS oleh air dan anion OH-. dilanjutkan proses olasi membentuk 2 jembatan okso yaitu Si-O-Si dan Ti-O-Si.
KROMATOGRAFI LAPIS TIPIS UNTUK PENENTUAN KADAR HESPERIDIN DALAM KULIT BUAH JERUK Handayani, Sri; Sunarto, Sunarto; Kristianingrum, Susila
Jurnal Penelitian Saintek Vol 10, No 1 (2005): April 2005
Publisher : Jurnal Penelitian Saintek

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7,                                     This   research   with   the   title   Thin   Layer   Chromatography  forDetermination of Hesperidins Content in Orange Peel has been donein organic chemistry laboratory. The aim of this research is to selectthe solvent mix for  the best hesperidins standard peak result and todeterminate the content (in relative percentage) of some orange peel.Hesperidins isolation from  orange peel conduct by soaks the orangepeel piece  in f 0% Calcium hydroxide solution for  a night in roomtemperature.    The   mixture   than  jiltered    and   neutralized   withhydrochloric acid to obtain hesperidins contain filtrate.  Hesperidinsanalyzed   by   thin   layer   chromatography.    Characterization   ofhesperidins did by compare the sample chromatogram with standardchromatogram.  The yield  (in  relative  percentage)   determinate  bycompare the sample peak area with hesperidins standard peak area.The solvent  mix  selected  before  by  attempt  some  solvent  mix foreludate hesperidins standard solution.The result of this research shown that hesperidins can analyzed usingthin   layer   chromatography   method.   with   the   best  solvent   waschloroform:  methanol mixture (2 : 3). Hesperidins content in extractsolution of some strain orange peel  is; Baby Egypt 0, f 380%, BabyPacitan 0,0615%, Mandarin Lokam 0,0018%, Santang 0,0049%, andSunkist  Nevel 0,0360%.  The hesperidins  content  in orange peel  ofMandarin Pakistan, Medan super, Nipis, Sunkist,  Peras, and Purutwas 0,0000. The hesperidins content in these orange peel was too lowto be detectedKeywords: Hesperidins, Orange peel. thin layer chromatography.
PENGARUH PERENDAMAN PASIR MALELO DENGAN HN03 TERHADAP EFISIENSI PENJERAPAN KROMIUM Sulastri, Siti; Kristianingrum, Susila; Arianingrum, Retno
Jurnal Penelitian Saintek Vol 9, No 1 (2004): April 2004
Publisher : Jurnal Penelitian Saintek

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The  objective   of  this  study   was  to  investigate    the  effect  of  soaking nitrate  acid  of Malelo  sand  to adsorption   efficiency   of chromium  (Cr). The Malelo  sand  was prepared   by soaking   in nitric  acid with variation of  concentration     were   17,5:  35  and   70%  for    24  hours   at  room temperature.    The  adsorption   efficiency   of  chromium   was  determined based  on concentration    of chromium   residue   after  adsorption.   which measured  using Atomic Absorption  Spectrophotometer    (AAS). The characterization    of Malelo  sand  determined   using  FTIR  and XRD.  The result  indicated  that the mean  ofadsorption    efficiency   of chromium  on Malelo   sand   without   preparation    and  soaking   in  nitrate   acid  with variation   concentration    17.5:  35 and  70%  were  91,36:  92,40:  92,72 and 94,004%  respectively.Key   words:    soaking,     Malelo    sand.    nitrate    acid.    efficiency     of adsorption,   and Chromium
UJI AKTIVITAS SENYAWA BIOAKTIF DALAM EKSTRAKS FRAKSI METANOL SARGASUM SP (ALGA COKLAT) SEBAGAI ANTI HEPATOTOKSIK Aznam, Nurfina; Atun, Sri; Kristianingrum, Susila
Jurnal Penelitian Saintek Vol 6, No 1 (2001): Saintek 2001
Publisher : Jurnal Penelitian Saintek

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The objectives  of this  research  are  to  identify  whether  the  bioactivecompound of methanol fraction  extracts of Sargasum sp can be used as anti hepatotoxic and to determine the dose of such compound in order that  it  may  be  used as anti hepatotoxic.  The population  used  in  this research was 2-month male white rats with almost similar weight. 39 rats were  taken for  the samples.  Treating  CCl4  injection carried   out  the bioactive compound activity test and the treatment of these compound extracts was observed by examining the liver cell damage microscopically and analyzing the GPT content. Examination was a/so conducted to the control rats (without CCI4  injection and bioactive compound treatment). From the result of the research it can be concluded that methanol fraction extract of Sargasum sp may be used as anti hepatotoxic. It wasfound  that the bioactive compound activity appeared at the dose of 500 mglkg of weight with 5 times treatments.Keywords: Sargasum sp; anti hepatotoxic
PEMANFAATAN LIMBAH KULIT lKAN MENJADI KERUPUK (RAMBAK) Kristianingrum, Susila; Arianingrum, Retno; Sulastri, Siti
INOTEK Vol 10, No 1 (2006): Februari 2006
Publisher : LPM UNY

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This   program   of  implementation    Science,   Technology    and  Arts (Ipteks)  intended  to  introduce  and  give  skill  training  about  making  chips from  fish skins (kerupuk  kulit  ikan)  to the community   in Tanjungsari   Sub­ district,  Gunungkidul   Regency.  In this  area,  there  are  plenty  of  fish  skins that can pollute  and disturb  the beauty  of the environment.   Producing  chips from fish skins can reduce the pollutant  and increase  the value of fish skins.The  program   was  held  by  giving   information   and  demonstration methods  in two locations  with different  participants.   The first program  was held  in Tanjungsari  Sub-district   Hall  for 35 participants,   who  were  village chiefs    wives.   The   second   program   was   held   at  Baron   beach   hall   to accommodate  20 participants,  consisting  of fishermens   wives and members of youth group.The questionnaire  result  of first program  showed  that  85.71 % of theparticipants   considered  this  program  profitable   and  74.28%  said  that  they were  interested  to  develop  business  in  producing   fish  skin  chips.  All  the participants   (100%)   of  the  second   program   said  that   the  program   was profitable  and  they  were  interested  to  develop   business   in producing   fish skin  chips.  Thus,  the  program   succeeded   in  broadening   the  participants perspectives  and  skills  on how  to make  use  of   waste,  turning  it into fish skin  chips  and  to  motivate  the  participants   to  develop   business  using  the knowledge  and skills already obtained.Key words:fish skin waste.fish skin drips
PERKEMBANGAN TEKNOLOGI PENGOLAHAN PANGAN DAN PENGARUHNYA TERHADAP KONSUMEN Kristianingrum, Susila
Jurnal Cakrawala Pendidikan CAKRAWALA PENDIDIKAN, EDISI 2,1997,TH.XVI
Publisher : LPPMP Universitas Negeri Yogyakarta

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Bahan pangan yang semula diduga baik unluk kesehatan, lernyata setelahdiperikx sara intensif ada pula krugiannya apabila dalam pengolahan tidal; mentaaliperaturan yang dikeluarbn oleh Menteri Kesehatan Republik Indonesia. Pengawasandan pemantauan tuhadap bahan pangan atau pun terhadap pencemar yang ada sangatpenting vnluk dilakubn agar mulunya baik dan aman bagi kecehatan konsumen.Pemerintah yang seharusnya mengatur, mengawasi. dan mengambil lindabnteps temyata belum kelat memmberibn sanbi bagi pelanggar peraturan. Banyakprodusen dengan sadar melakubn hal-ha1 yang bcrbitan dengan pelanggaran sepenipcrqaratan mutu, penggunaan adilif yang membahayabn, pendafiaran mabnan bagiinduari Cecil dan rumah tangga, label yang kurang jelas, iklan yang berlebihan,memprodultsi dan mengedarbn mabnan yang rudah hdaluwarsa, mabnan yang sudahrusak, dan lain-lain yangdapal menimbulbn keracunan dan kontaminasi bahan pangantersebut. Kcmajuan tcknologi di bidang pangan, kadang mendorong produsen untuk:mengambil keuntunpn. xbsar-beaarnya tanpa memikirbn aspek kesehalan dankeamanan bagi konsumcnnya.
SYNTHESIS OF BIODIESEL FROM KAPUK SEED OIL (Ceiba Pentandra L) AT VARIATION STIRRING DURATION IN TRANSESTERIFICATION PROCESS Siswani, Endang Dwi; Kristianingrum, Susila; Tohari, Tohari
Jurnal Sains Dasar Vol 4, No 2 (2015): Jurnal Sains Dasar
Publisher : Yogyakarta State University

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The synthesis of biodiesel targeted as SNI 04-7182-2006 standard has been done from kapuk randu seed, following two steps i.e. sokhlet extraction process of kapuk seed oil from kapuk seed using n-heksane as a solvent, and the production of biodiesel from kapuk seed oil by transesterification process using methanol and KOH as catalyst. Transesterificatin process was performed at temperature 50 oC with the variation of stirring duration as followed  50, 75, 100 and 125 minutes. The kapuk randu extraction resulted  % kapuk randu seed oil, while the transestherification process resulted around 55 - 65%. The biodiesel product characteristics provided the density value of all biodiesel at stirring durations variation are suitable with SNI standard (850 – 890 kg/m3), the viscosity value of all biodiesel are  higher than the range SNI value (2,3 – 6,0 cSt). While the flash point values are lesser than SNI standard (10160 - 11000 cal/g). Keywords: kapuk randu seed, transestherification, biodiesel
CRYSTALLIZATION AND CHARACTERIZATION OF CHROMIUM-CONTAINING SILICALITE-1 Sutrisno, Hari; Siswani, Endang Dwi; Kristianingrum, Susila; Suharto, Suharto
Indonesian Journal of Chemistry Vol 5, No 3 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.893 KB) | DOI: 10.22146/ijc.21805

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Chromium-containing silicalite-1, designed CrS-1, was synthesized by the hydrothermal method and characterized by XRD and FTIR techniques. The objectives of the research are to study the synthesis of CrS-1 and investigate the effect of crystallization temperatures and times toward its character. All samples of CrS-1 crystallized in orthorhombic structure and Pnma space group. The phase observed in the XRD patterns of CrS-1 synthesized from 150 to 190 oC for 11 days showed only MFI-type phase. The CrS-1 prepared under static condition for 1 day at 150 oC indicated -SiO2 phase, on the contrary, the samples conditioned for 2 to 8 days at 150 oC are only MFI phase.   Keywords: Crystallization, synthesis, chromium silicate CrS-1, incorporation.
OPTIMIZATION OF TIME REACTION AND HYDROXIDE ION CONCENTRATION ON FLAVONOID SYNTHESIS FROM BENZALDEHYDE AND ITS DERIVATIVES Handayani, Sri; Sunarto,, Sunarto,; Kristianingrum, Susila
Indonesian Journal of Chemistry Vol 5, No 2 (2005)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.09 KB) | DOI: 10.22146/ijc.21825

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The aim of this research is to determine the optimum time of reaction and concentration of hydroxide ion on chalcone, 4-methoxychalcone and 3,4-dimethoxychalcone synthesis. Chalcone and its derivatives were synthesized by dissolving KOH in ethanol followed by dropwise addition of acetophenone and benzaldehyde. Then, the mixture was stirred for several hours. Three benzaldehydes has been used, i.e : benzaldehyde, p-anysaldehyde and veratraldehyde. The time of reaction was varied for, 12, 18, 24, 30 and 36 hours. Furthermore, on the optimum reaction time for each benzaldehyde the hydroxyl ion concentration was varied from 5,7,9,11 and 13%(w/v). The results of this research suggested that the optimum time of chalchone synthesis was 12 hours, while, 4-methoxychalcone and 3,4-dimethoxychalcone were 30 hours. The optimum concentration of hydroxide ion of chalcone synthesis was 13% and for 4-methoxychalcone and 3,4-dimethoxychalcone were 11%. Keywords: Chalcone synthesis, time of reaction, hydroxide ion concentration.