Garuda - Garba Rujukan Digital

PEMANFAATAN KATALIS Ca3(PO4)2 DARI TULANG IKAN TUNA PADA PEMBUATAN BIODIESEL DARI MINYAK BINTANGGUR (Callophyllum inophyllum L) Rosmawaty Rosmawaty; I Wayan Sutapa; Desy Kamanasa
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp12-24

Biodiesel synthesis from bintanggur oil (Callophyllum inophyllum L.) has been done through esterification and transesterification process with Ca3(PO4)2 catalyst and methanol solvent. Production of Ca3(PO4)2 catalyst process was conducted by calcination of the Tunaâ€™s bone at 1000ÂºC for 2 hours. The catalyst result was got 58.75% and then been characterized with XRD. The esterification process was performed with methanol and bintanggur oil in molar ration of 1:9 for 2 hours with 1.25% H2SO4. The transesterification process was conducted with bintanggur oil and methanol in molar ratio of 1:12 for 9 hours with 10% Ca3(PO4)2 catalyst. The conversion result by 1H-NMR is 73.76% and experimentally was 56.87%. Biodiesel was analyzed with FTIR, GC-MS, 1H-NMR and ASTM. ASTM testing result show there are spesific density of 0.9204 g/cm3, kinematic viscosity of 29.68 mm2/s, flash point at 188.5ÂºC, pour point at 6ÂºC, Conradson carbon residue of 0.162%, water content 0.175%, and copper strip corrosion of 1b

PEMANFAATAN KATALIS CA3(PO4)2 DARI TULANG IKAN TUNA PADA PEMBUATAN BIODIESEL DARI MINYAK BINTANGGUR (CALLOPHYLLUM INOPHYLLUM L) Rosmawaty, Rosmawaty; Sutapa, I Wayan; Kamanasa, Desy
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/MJoCEvol8iss1pp12-24

Biodiesel synthesis from bintanggur oil (Callophyllum inophyllum L.) has been done through esterification and transesterification process with Ca3(PO4)2 catalyst and methanol solvent. Production of Ca3(PO4)2 catalyst process was conducted by calcination of the Tuna?s bone at 1000ºC for 2 hours. The catalyst result was got 58.75%  and then been characterized with XRD. The esterification process was performed with methanol and bintanggur oil in molar ration of 1:9 for 2 hours with 1.25% H2SO4. The transesterification process was conducted with bintanggur oil and methanol in molar ratio of 1:12 for 9 hours with 10% Ca3(PO4)2 catalyst. The conversion result by 1H-NMR is 73.76% and experimentally was 56.87%. Biodiesel was analyzed with FTIR, GC-MS, 1H-NMR and ASTM. ASTM testing result show there are spesific density of 0.9204 g/cm3, kinematic viscosity of 29.68 mm2/s, flash point at 188.5ºC, pour point at 6ºC, Conradson carbon residue of 0.162%,  water content 0.175%, and  copper strip corrosion of 1b

PEMANFAATAN GETAH BUAH PEPAYA UNTUK MENINGKATKAN KUALITAS KIMIA DAGING KERANG DARAH (Anadara granosa) DENGAN BEBERAPA METODE PENGOLAHAN Ivonne Telussa; Rosmawaty Rosmawaty; Jolantje Latupeirissa
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

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

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%).

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

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%).

SINTESIS SENYAWA t-KALKON BAHAN DASAR SENYAWA TABIR SURYA Ruslin Hadanu
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp36-41

A novel method for the synthesis of t-chalcone as material start of sunscreen compounds through aldol condensation reaction was introduced using NaOH/EtOH as a catalyst and solvent. The structures of the t-chalcone of product were confirmed by IR, GC-MS and 1H-NMR spectrosfotometer

SINTESIS SENYAWA T-KALKON BAHAN DASAR SENYAWA TABIR SURYA Hadanu, Ruslin
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/MJoCEvol8iss1pp36-41

A novel method for the synthesis of t-chalcone as material start of sunscreen compounds through aldol condensation reaction was introduced using NaOH/EtOH as a catalyst and solvent. The structures of the t-chalcone of product were confirmed by IR, GC-MS and 1H-NMR spectrosfotometer

PROFIL HASIL BELAJAR KONSEP ASAM BASA DAN GARAM MELALUI PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) PADA SISWA KELAS VII SMP NEGERI 15 AMBON Napsin Palisoa; Healthy Kainama; Mendy F Picaulima
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp42-55

The research has been done to know profile of students result of teaching in acid, base and salt concepts through a contextual teaching and learning (CTL) using the class VII students of SMP Negeri 15 Ambon as a sampel of searching. Profile of student learning results in acid-base concept and salt obtained by the test results to learn. Descriptive analist showed that the results obtained studying the cognitive aspects of 80.07%, 86.02% affective aspects, while the aspect psiycomotoryc 87.29% students are success to achieved the KKM. After following the learning process, the result of the acquisition value of the final test (post-test) showed that 80.16% of students have been able to achieve KKM. Of the students test data during the learning process the Final Value (NA) all students showed that 100% all students have reached the KKM. Based on the results obtained can be concluded that by using a contextual approach to teaching and learning (CTL) on the concept of base and acid salts can encourage students to be able find a relationship between the material learned to real life situations of students and increase student result of learning.

PROFIL HASIL BELAJAR KONSEP ASAM BASA DAN GARAM MELALUI PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) PADA SISWA KELAS VII SMP NEGERI 15 AMBON Palisoa, Napsin; Kainama, Healthy; Picaulima, Mendy F
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/MJoCEvol8iss1pp42-55

The research has been done to know profile of students result of teaching in acid, base and salt concepts through a contextual teaching and learning (CTL) using the class VII students of SMP Negeri 15 Ambon as a sampel of searching.  Profile of student learning results in acid-base concept and salt obtained by the test results to learn. Descriptive analist showed that the results obtained studying the cognitive aspects of 80.07%, 86.02% affective aspects, while the aspect psiycomotoryc 87.29% students are success to achieved the KKM. After following the learning process, the result of the acquisition value of the final test (post-test) showed that 80.16% of students have been able to achieve KKM. Of the students test data during the learning process the Final Value (NA) all students showed that 100% all students have reached the KKM. Based on the results obtained can be concluded that by using a contextual approach to teaching and learning (CTL) on the concept of base and acid salts can encourage students to be able find a relationship between the material learned to real life situations of students and increase student result of learning.

DESORPSI ION EMAS(III) DALAM SISTEM MULTILOGAM Au/Ni/Ag DENGAN MENGGUNAKAN VARIASI TIOUREA-HCl Julita Manuhutu; Nuryono Nuryono; Sri Juari Santosa
Molluca Journal of Chemistry Education (MJoCE) Vol 8 No 1 (2018): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol8iss1pp56-63

Desorption of gold(III) in multi-metal system Au/Ni/Ag on amino silica hybrid (ASH) column have been studied. ASH was synthesized by sol gel process with sodium silicate (Na2SiO3) from rice husk ash (RHA) as precursor. ASH was synthesized by adding 3M of hydrochloride acid solution to the mixture of (3-aminopropyl)-trimethoxysilane and Na2SiO3 solution untill pH 7 (neutral). ASH was characterized by infrared spectroscopy (IR) and X-ray diffraction (XRD). Adsorption of multi-metal (Au/Ni/Ag) was carried out with a column technique. The adsorbed metal ions [Au(III), Ni(II), and Ag(I)] were quantitively using atomic absorption spectroscopy (AAS). Desorption of Au(III), Ni(II), and Ag(I) at ASH was conducted by using thioruea in hydrochloride solution with variation of concentration. Total desorption of metal ions was calculated based on AAS analysis. For desorption of multi-metal(Au / Ni / Ag), Au (III) was eluted using 1M HCL is 16,60%; using 0,5 M thiourea in 1M HCl is 57,45%, and with 1M thiourea in 1M HCl is 59,12%.

DESORPSI ION EMAS(III) DALAM SISTEM MULTILOGAM AU/NI/AG DENGAN MENGGUNAKAN VARIASI TIOUREA-HCL Manuhutu, Julita; Nuryono, Nuryono; Santosa, Sri Juari
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/MJoCEvol8iss1pp56-63

Desorption of gold(III) in multi-metal system Au/Ni/Ag on amino silica hybrid (ASH) column have been studied. ASH was synthesized by sol gel process with sodium silicate (Na2SiO3) from rice husk ash (RHA) as precursor. ASH was synthesized by adding 3M of hydrochloride acid solution to the mixture of (3-aminopropyl)-trimethoxysilane and Na2SiO3 solution untill pH 7 (neutral). ASH was characterized by infrared spectroscopy (IR) and X-ray diffraction (XRD). Adsorption of multi-metal (Au/Ni/Ag) was carried out with a column technique. The adsorbed metal ions [Au(III), Ni(II), and Ag(I)] were quantitively using atomic absorption spectroscopy (AAS). Desorption of Au(III), Ni(II), and Ag(I) at ASH was conducted by using thioruea in hydrochloride solution with variation of concentration. Total desorption of metal ions was calculated based on AAS analysis. For desorption of multi-metal(Au / Ni / Ag), Au (III) was eluted using 1M HCL is 16,60%; using 0,5 M thiourea in 1M HCl is 57,45%, and with 1M thiourea in 1M HCl is 59,12%.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Yeanchon H. Dulanlebit

Contact Email
journal.mjoce@gmail.com

Phone
+6281312409360

Journal Mail Official
journal.mjoce@gmail.com

Editorial Address
Gedung Jurusan Pendidikan MIPA FKIP Lt. 2 Program Studi Pendidikan Kimia Jl. Ir. M. Putuhena, Kampus Universitas Pattimura Poka-Ambon, Maluku, Indonesia

Location
Kota ambon,

Maluku

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Yeanchon H. Dulanlebit

Contact Email journal.mjoce@gmail.com

Phone +6281312409360

Journal Mail Official journal.mjoce@gmail.com

Editorial Address Gedung Jurusan Pendidikan MIPA FKIP Lt. 2 Program Studi Pendidikan Kimia Jl. Ir. M. Putuhena, Kampus Universitas Pattimura Poka-Ambon, Maluku, Indonesia

Location Kota ambon, Maluku INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Yeanchon H. Dulanlebit

Contact Email
journal.mjoce@gmail.com

Phone
+6281312409360

Journal Mail Official
journal.mjoce@gmail.com

Editorial Address
Gedung Jurusan Pendidikan MIPA FKIP Lt. 2 Program Studi Pendidikan Kimia Jl. Ir. M. Putuhena, Kampus Universitas Pattimura Poka-Ambon, Maluku, Indonesia

Location
Kota ambon,

Maluku

INDONESIA