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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Chemistry Indonesian Journal of Chemical Research Molluca Journal of Chemistry Education (MJoCE) Innovation for Community Service Journal
Latupeirissa, Jolantje
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WAKTU KONTAK DAN PH OPTIMUM SISA BUANGAN BATU BATA TERAKTIVASI DI-(2-ETHYLHEXCYL) PHOSPHATE ACID (D2EHPA,) SEBAGAI PENJERAP PB 2+ Fransina, Eirene Grace; Latupeirissa, Jolantje; Stefanus, Quendeline
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Prodi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp7-11

Abstract

Determination of optimum pH and contact time, of broken brick from Latuhalat village as adsorbent of Pb2+ through impregnation with di-(2-ethylhexcyl) phosphate acid (D2EHPA) has been done. Bricks impregnated with di-(2-ethylhexcyl) phosphate acid concentration of 700 ppm to enlarge the surface area of ??adsorption on bricks. The result of analysis using AAS show that optimum contact time is 3 hours, optimum pH is 8, with weight of adsorbent is 0,2 g, adsorbate concentration is 100 ppm and adsorption capacity is 49,9985 mg/g adsorbent.
PEMANFAATAN GETAH BUAH PEPAYA UNTUK MENINGKATKAN KUALITAS KIMIA DAGING KERANG DARAH (ANADARA GRANOSA) DENGAN BEBERAPA METODE PENGOLAHAN Telussa, Ivonne; Rosmawaty, Rosmawaty; Latupeirissa, Jolantje
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Prodi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp25-35

Abstract

Getah buah papaya diambil dan diisolasi enzim papain kemudian ditambahkan dalam proses pengolahan daging kerang darah baik dengan cara direbus maupun dikukus dan sebagai pembandingnya dilakukan hal yang sama untuk daging kerang darah baik di rebus dan dikukus tanpa penambahan enzim papain hasil isolasi tersebut. Dilakukan Uji  kualitas kimia daging kerang darah  (Anadara granosa) hasil olahan melalui analisis proksimat dan analisis asam lemak. Hasil penelitian menunjukkan berat molekul dari enzim papain yang diisolasi dari  Getah buah papaya adalah 21 kDa. Komposisi proksimat yang terbaik dibandingkan dengan kontrol (tanpa penambahan enzim papain) adalah pengolahan dengan penambahan enzim dimana pengolahan direbus dengan penambahan enzim diperoleh pH 6.757, Kadar air 68.21, kadar lemak 5.66598, dan kadar abu 1.78764 sedangkan dengan dikukus  diperoleh pH 6.437, Kadar air 59.29,   kadar lemak 4.22242, dan  kadar abu 2.35173. Kadar protein dan nilai susut masak tertinggi berturut-turut pada perlakuan penambahan enzim papain sebesar 67 % dan 50.94   sedangkan  terendah pada perlakuan tanpa penambahan enzim papain sebesar 18 %  dan 40.18. Hasil analisis asam lemak dengan metode GC-MS menunjukkan bahwa kerang darah tanpa penambahan enzim mengandung 6 jenis asam lemak yaitu metil ester asam meristat (4.15%), metil ester asam palmitoleat (8,81%), metil ester asam palmitat (19.24%), metil ester asam oleat (3.43%) metil ester asam stearat (14.09%) dan metil ester arakidonat (5.19%) sedangkan  kerang darah dengan penambahan enzim mengandung 7 jenis asam lemak yaitu metil ester asam meristat (5,25%), metil ester asam palmitoleat (9.62%), metil ester asam palmitat (21.54%), metil ester asam oleat cis (3.97%), metil ester asam oleat trans (4.20%),  metil ester asam stearat (13.33%) dan metil ester arakidonat (5.15%).
The Characterization Of Clays From Latuhalat Village Activated Using Ammonium Nitrate Latupeirissa, Jolantje; Fransina, Eirene G.
Indonesian Journal of Chemical Research Vol 1 No 2 (2014): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2014.1-jol

Abstract

Research on characterization clays from Latuhalat village before and after the activation using ammonium nitrate has been carried out. The brick was grinded, washed with aquadest and filtered. The clays was dried for 4 h in oven at 120°C, then it was soaked in HCl 1M for 30 min and was filtered. The clays in oven at 110°C for 5 h. The clays were sieved and activated using ammonium nitrate solution 700 ppm for 5 hours followed by filtration and heating in a furnace with temperature 5000C for 4 hours. The results of this research show that the adsorption of Pb2+ metal ions by ammonium nitrate salts, activated clays occur at pH 7 with 4 hours of contact time at concentrations of 100 ppm and heavy absorbent 0.15 g. Next clays are not activated NH4NO3 and activated NH4NO3 are characterized by SEM, FT-IR, and XRD. After the adsorption clays are characterized also by FT-IR. SEM micrograph with results on samples of clay before and after activated with magnification 10.000x showed a huge difference. Porosity clay before activation is relatively small compared to clay after activated. Sample after sample surface showed that activated the typical micro-structure is clearly visible in the shape of the flat, and slightly layered hexagonal. FT-IR analysis of clay before and after activation, activation and after adsorption showed the results did not very much. On clay prior to activation with NH4NO3 on the uptake about 900 cm-1 is the functional group montmorilonite. For the clays after adsorption showed the existence of ties between clay particles with metal. For metal uptake there are areas around 425 cm-1. The result analysis of x-ray diffraction of clays before and after activation of NH4NO3 indicates the result value of 2θ in a row is 26,65470 and 26,87750 which is area with indication of quartz SiO2.
Adsorption of Tartrazine Dye By Active Carbon from Mahagony (Swietenia Mahagoni Jacq) Rind Tanasale, Matheis F.J.D.P.; Latupeirissa, Jolantje; Letelay, Riwana
Indonesian Journal of Chemical Research Vol 1 No 2 (2014): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2014.1-mat

Abstract

The adsorption of tartrazine dye on active carbon of mahagony (Swietenia mahagoni Jacq) rind has been done. Through acquired active carbon carbonations process, where was that rind at entry into furnace on temperature 500oC for 1 hour, afterwards is cooled and sieved to 50 mesh. Activation process was done through charcoal soaking in 4 M HCl solution for 15 hours and be dried on ovens at 110o C for 1 hour. After that, by the calcinations process in furnace at 450o C was streamed to gas N2 for 2 hours then analysed by X-ray diffraction (XRD) to charcoal before activation, after activation and after calcinations. Adsorption process to tartrazina dye utilize UV-Vis spectrophotometer was been done. Result of research are gotten optimum condition of active carbon which is on adsorben’s weight 1.0 g, contact time 40 minutes, pH = 3 and concentration of tartrazine dye on 30 ppm. Adsorption of tartrazine dye on the active carbon fits Freundlich's isotherm at the value correlation coefficient (r 2 ), value K F , and value n which is 98%; 0.015 and 1.186 respectively.
Effect Of Tamarind (Tamarindus indica L.) Extract To Histamine Content In Bullet Tuna (Auxis rochei) Hattu, Nikmans; Latupeirissa, Jolantje; Fransina, Eirene G.; Seumahu, Cecelia A; Latupeirissa, Astrid
Indonesian Journal of Chemical Research Vol 2 No 1 (2014): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2014.2-nik

Abstract

The research to determine histamine content in bullet of tuna (Auxis rochei) with variation of tamarind (Tamarindus indica L.) extract concentrations and time of marinate has been done. The histamine content is determined quantitatively by using ultraviolet-visible spectrophotometer with the calibration curve method. The result showed that histamine content in bullet tuna marinated in tamarind extract with varied concentrations of 5%, 10%, 15%, and 20% within 10 minutes, are 37.4561, 35.3041, 23.8778, and 22.1186 mg/100 g respectively. While, the concentrations of histamine in bullet tuna marinated in 20% of tamarind extract with variation of 10, 20, 30, 40, and 50 minutes, are 22.2965, 19.7544, 17.6925, 11.5865, and 8.0396 mg/100 g respectively. A qualitatively, visual comparison of colour intensity of samples with reference colour scale of the standard solution concentration can be used to determine concentrations of histamine without the aid of a spectrophotometer.
Effect of Tamarind (Tamarindus indica L.) Extract To Histamine Content In Bullet Tuna (Auxis rochei) Hattu, Nikmans; Latupeirissa, Jolantje; Latupeirissa, Astrid
Indonesian Journal of Chemical Research Vol 2 No 2 (2015): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2015.2-nik

Abstract

The research to determine histamine content in bullet of tuna (Auxis rochei) with variation of tamarind (Tamarindus indica L.) extract concentrations and time of marinate has been done. The histamine content is determined quantitatively by using ultraviolet-visible spectrophotometer with the calibration curve method. The result showed that histamine content in bullet tuna marinated in tamarind extract with varied concentrations of 5%, 10%, 15%, and 20% within 10 minutes, are 37.4561, 35.3041, 23.8778, and 22.1186 mg/100 g respectively. While, the concentrations of histamine in bullet tuna marinated in 20% of tamarind extract with variation of 10, 20, 30, 40, and 50 minutes, are 22.2965, 19.7544, 17.6925, 11.5865, and 8.0396 mg/100 g respectively. A qualitatively, visual comparison of colour intensity of samples with reference colour scale of the standard solution concentration can be used to determine concentrations of histamine without the aid of a spectrophotometer.
Adsorption of Cd Metal Using Active Carbon From Cacao Shell (Theobroma cacao) Sekewael, Serly J.; Latupeirissa, Jolantje; Johannes, Rosalina
Indonesian Journal of Chemical Research Vol 2 No 2 (2015): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2015.2-ser

Abstract

The study on production of activated carbon from cacao shell (Theobroma cacao) was conducted by added 4 M HCl as activating agent. The results show that acidity of solid carbon active before activated with adsorption weight is 3.2865x10-3 mol.g-1 and after activated is 3.5052x10-3 mol.g-1. Active carbon result is used for the application at adsorption Cd with some variantion, that are optimum concentration 20 ppm and optimum time 80 min. Cd adsorption from active carbon was analyzed by AAS. The results are coeficient correlation (r2) 100 % followed Freundlich isotherm with KF value was 9.994 and n was -0.982.
The Capability Test Of Rice Husk (Oryza sativa L) As Active Carbon For Phenol Adsorption Tanasale, Matheis F.J.D.P.; Latupeirissa, Jolantje; Tuhalauruw, Eltha
Indonesian Journal of Chemical Research Vol 2 No 2 (2015): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2015.2-mat

Abstract

The utilization study of active carbon from rice husk as adsorbent has been done. Active carbon is gained through carbonization process where rice husk put into furnace on temperature 300 oC. for 1 hour, colded, and sieved by sieve 100 mesh. The next it is activated by KOH solution with a concentration of 50% for 5 hours. The characterization used X-ray diffraction (XRD) for both carbons before and after activation. And determinated anidity weigh, calsinated in furnace with 400 oC. and streamed through N2 gas for 2 hours. Acidity weight of 6.4873 x 10-2 and 2.5467 x 10-2 mol/g, respectively. Determination of phenol adsorption was the UV-Vis spectrophotometry. Adsorption phenol from active carbon was followed the Freundlich isotherm with maximum capacity 5.6964 x 10-2 mg/g and n value is 0.2586 mg/g. The experimental data fitted well to the pseudo second-order kinetic model, which regretion value is 99.9 % and rate constant reaction (k) value is 0.74 g mg-1 menit-1 Phenol adsorption from active carbon rice husk the best is consentration 100 ppm with value 99.56 %.
Kondisi Optimum Biosorpsi Sisik Ikan Kakap Merah (Lutjanus argentimaculatus) Terhadap Zat Warna Rhodamin B Fransina, Eirene; Latupeirissa, Jolantje
Indonesian Journal of Chemical Research Vol 3 No 2 (2016): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2016.3-eir

Abstract

The research of rhodamine B dye biosorption by Red Snapper’s scale (Lutjanus argentimaculatus) powder has been done. The red snapper’s scales were cleansed with aquades and dried. The dried red snapper’s scales were grinded and sieved to powder with a 100 mesh sieve. The powder of red snapper’s scale was dried at 100 °C in oven for an hour. The biosorption process toward rhodamine B dye and its results were examined with UV-Vis spectrophotometer. The optimum condition of red snapper’s scale powder for 1.0 g of absorbent has biosorption capacity in amount of 92.740%; the optimum contact time is 120 minutes with biosorption capacity in amount of 97.264%; for 50 ppm biosorption concentration has biosorption capacity in amount of 95.598% and the optimum pH of 3 has biosorption capacity of 97.930%.
Sintesis dan Karakterisasi Selulosa Asetat (CA) Souhoka, Fensia Analda; Latupeirissa, Jolantje
Indonesian Journal of Chemical Research Vol 5 No 2 (2018): Edisi Bulan Januri (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2018.5-fen

Abstract

Synthesis and characterization of cellulose acetate (CA) has been conducted. The cellulose used in this study was commecial a-cellulose in 92% content. All the CA products were analyzed by FTIR spectrometers. The determination of cellulose content was done using standart method of TAPPI T-203, while the determination of the degree of substitution (DS) was based on SNI 0444:2009 method. Conventional acetylation of cellulose was performed using gacial acetic acid, anhydride acetic acid, and sulfuric acid. The acetylation at 25 °C for 2.5 hours gave the DS of 1.482 and at 40 °C for 5 hours gave the higher DS 2.295.
Co-Authors Aziz, Thamrin Bandjar, A. Bijang, Catherina M. Fensia Analda Souhoka Fransina, Eirene G. Gaspersz, Nelson Hattu, Nikmans I Wayan Sutapa Ivonne Telussa Johannes, Rosalina Latupeirissa, Astrid Letelay, Riwana M. Nurdin Maahury, Mirella Fonda Matheis F.J.D.P. Tanasale Nasution, Annio Indah Lestari Noya, Alesya Nusaly, Windy Natalia Pada, Semuel S. Pattiasina, Priska Marisa Pentury, Evangeline Rahayu Rahayu Ratuhanrasa, Marike Sapulet, Sisca Madona Sekewael, Serly J. Seumahu, Cecelia A Sopamena, Helna Lourita Stefanus, Quendeline Talapessy, Firda Tanasale, Matheis F. J. D. P. Tuhalauruw, Eltha