JURNAL KIMIA MULAWARMAN
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Sintesis Dialdehid Alginat Melalui Reaksi Oksidasi Natrium Alginat Dengan Natrium Metaperiodat
Full text linkSynthesis of dialdehyde alginate has been done by oxidation reactions of sodium alginate with sodium metaperiodate (ratio of mol 1: 1). The formation of dialdehyde alginate as a result of oxidation are characterized by FT-IR spectroscopy with a peak absorption at 1627.92 cm-1, which is the vibration stretching C = O of functional groups from the aldehyde group resulting from the -OH group oxidation process, the absorption peak is changing its wavelength and intensity more sharply compared to initial sodium alginates. In addition, the C-O-C band (cyclic ether ) at 1033 cm-1 are reduced as a result of chains cleavage. The absorption peaks that appear at 794.67 cm-1 and 732.95 cm-1 are included in the bond CH which contributes to cleavage the bending C-C of oxidized sodium alginate
Sintesis Silika Mesopori Sba-15 Dari Abu Daun Jagung (Zea Mays L)
Full text linkThe synthesis and characterization of mesoporous silica Santa Barbara Acid-15 (SBA-15) from the ash of corn have been done. SBA-15 was synthesised using the surfactant template method. SBA-15 from corn leaves ash has a surface area of 592 m2 / gram, pore volume of 0.99 cm3 / gram and pore diameter of 3.95 nm with pore size ranging from 4.9 nm - 7.1 nm. The SAXS pattern of the bio-SBA-15 showed three typical peaks of SBA-15 with miller indices [100], [110] and [200]. In the FTIR spectrum of SBA-15, peaks from Si-O-Si, Si-OH and H-O-H from water were observed.
 
Pembuatan dan Karakterisasi Deoiled Spent Bleaching Clay (DSBC) terpilar TiO2 dengan penambahan surfaktan rarasaponin”
Full text linkSynthesis and characterization TiO2 pillared deoiled spent bleaching clay (DSBC) with rarasaponin as surfactant has been conducted. The activation of DSBC was performed by H2SO4 1N . Characterization had been conducted use X-Ray Diffraction, Flourescent Diffraction, Fourier Transform Infared Spectroscopy and Scaning Electron Microscopy. The results showed cristalinity of TiO2 pillared deoiled spent bleaching clay had increase until 72,5014 % after calcined 500 oC and expected there is Ti on layer based on SEM analysisSynthesis and characterization TiO2 pillared deoiled spent bleaching clay (DSBC) with rarasaponin as surfactant has been conducted. The activation of DSBC was performed by H2SO4 1N . Characterization had been conducted use X-Ray Diffraction, Flourescent Diffraction, Fourier Transform Infared Spectroscopy and Scaning Electron Microscopy. The results showed cristalinity of TiO2 pillared deoiled spent bleaching clay had increase until 72,5014 % after calcined 500 oC and expected there is Ti on layer based on SEM analysisSynthesis and characterization TiO2 pillared deoiled spent bleaching clay (DSBC) with rarasaponin as surfactant has been conducted. The activation of DSBC was performed by H2SO4 1N . Characterization had been conducted use X-Ray Diffraction, Flourescent Diffraction, Fourier Transform Infared Spectroscopy and Scaning Electron Microscopy. The results showed cristalinity of TiO2 pillared deoiled spent bleaching clay had increase until 72,5014 % after calcined 500 oC and expected there is Ti on layer based on SEM analysis
PENENTUAN KADAR ASAM AMINO ESENSIAL (METIONIN, LEUSIN, ISOLEUSIN DAN LISIN) PADA TELUR PENYU DAN TELUR BEBEK
Full text linkDetermination of amino acids essential’s content (methionine, leucine, isoleucine and lysine) on turtle eggs and duck eggs. Turtle eggs and duck eggs are a high animal protein source and easy to obtain. This research has been carried out by categorizing of turtle eggs and duck eggs by size and continued analysis of water content by Methods of Gravimetry, analyzes protein content total by the method of Kjeldahl and analysis of the levels of essential amino acids with method of HPLC (High Performance Liquid Chromatography). In this study, the researcher found the water content in the mix (large, medium and small) 75.2889% and turtle eggs on the mix 67.9020% duck egg. Total protein content in the mix turtle eggs 8.9268% and the mix duck eggs 14.2455%. Levels of essential amino acids in the mixture turtle eggs undetectable methionine, 3.25% leucine, isoleucine and lysine 1.53% 2.50%. In the mix duck eggs undetectable methionine, 1.30% leucine, isoleucine and lysine 0.58% to 0.38%.Determination of amino acids essential’s content (methionine, leucine, isoleucine and lysine) on turtle eggs and duck eggs. Turtle eggs and duck eggs are a high animal protein source and easy to obtain. This research has been carried out by categorizing of turtle eggs and duck eggs by size and continued analysis of water content by Methods of Gravimetry, analyzes protein content total by the method of Kjeldahl and analysis of the levels of essential amino acids with method of HPLC (High Performance Liquid Chromatography). In this study, the researcher found the water content in the mix (large, medium and small) 75.2889% and turtle eggs on the mix 67.9020% duck egg. Total protein content in the mix turtle eggs 8.9268% and the mix duck eggs 14.2455%. Levels of essential amino acids in the mixture turtle eggs undetectable methionine, 3.25% leucine, isoleucine and lysine 1.53% 2.50%. In the mix duck eggs undetectable methionine, 1.30% leucine, isoleucine and lysine 0.58% to 0.38%
Pengaruh Suhu Dan Lama Pengeringan Terhadap Sifat Kimia Dan Organoleptik Sale Pisang Kapas (Musa Comiculata)
Full text linkBanana “kapas” is an original banana cultivar from Samarinda, with the characteristics at the time of mature is yellow fruit skin color, flesh color yellowish white and has a sweet taste. During this time the banana kapas has not been utilized properly. Based on the characteristics possessed by banana kapas can be processed into the processed products sale banana.
This study aims to determine the effect of temperature and drying time on the chemical properties of sale of banana kapas produced, the level of panelist reception at organoleptic test and to get the time and temperature of the dryer that produces a quality banana sale based on chemical properties and organoleptic. The results showed that the temperature and duration of the dryer and its interactions had the significant effect on water content, ash content, vitamin C and reducing sugar content. Treatment with temperature 75oC and 21 hours drying time gave the best result with water content, ash content, vitamin C and reducing sugar are 32.80%, 1.13%, 60.65 mg/g and 16.08% respectively. For hedonic test, hedonic values of color, flavor, aroma and texture is like the hedonic quality of brown, sweet taste, rather banana flavored and hard texture.
 
STUDI DOCKING MOLEKULAR SENYAWA ASAM SINAMAT DAN DERIVATNYA SEBAGAI INHIBITOR PROTEIN 1J4X PADA SEL KANKER SERVIKS
Full text linkMolecular docking of cinnamate acid compound and its derivatives as protein 1J4X inhibitor to cervical cancer cell has been done. The result showed that the docking energies on mode 1 of inhibitor molecules are -5.7 kcal/mol for cinnamate acid, -6.0 kcal/mol for phenyl cinnamate, -4.7 kcal/mol for methyl cinnamate and -7.5 kcal/mol for 4-phenylchroman-2-on. The inhibitor molecules were interacted with the amino acids of the cervical cancer cell by forming hydrogen bondings. Cinnamate acid formed hydrogen bondings with amino acids of serine 124, glycine 127, tyrosine 128, serine 129 and arginine 130. Phenyl cinnamate formed hydrogen bonding with amino acid of serine 129. Methyl cinnamate formed hydrogen bonding with amino acid of serine 129. 4-phenylchroman-2-on formed hydrogen bondings with amino acids of serine 124, serine 129 and arginine 130. Cinnamate acid is more potential as anticancer drug than phenyl cinnamate, methyl cinnamate and 4-phenylchroman-2-onMolecular docking of cinnamate acid compound and its derivatives as protein 1J4X inhibitor to cervical cancer cell has been done. The result showed that the docking energies on mode 1 of inhibitor molecules are -5.7 kcal/mol for cinnamate acid, -6.0 kcal/mol for phenyl cinnamate, -4.7 kcal/mol for methyl cinnamate and -7.5 kcal/mol for 4-phenylchroman-2-on. The inhibitor molecules were interacted with the amino acids of the cervical cancer cell by forming hydrogen bondings. Cinnamate acid formed hydrogen bondings with amino acids of serine 124, glycine 127, tyrosine 128, serine 129 and arginine 130. Phenyl cinnamate formed hydrogen bonding with amino acid of serine 129. Methyl cinnamate formed hydrogen bonding with amino acid of serine 129. 4-phenylchroman-2-on formed hydrogen bondings with amino acids of serine 124, serine 129 and arginine 130. Cinnamate acid is more potential as anticancer drug than phenyl cinnamate, methyl cinnamate and 4-phenylchroman-2-on
Pengaruh Tembaga(II) dan Kadmium(II) Terhadap Persen Ekstraksi Merkuri(II) Menggunakan Emulsi Membran Cair Tipe W/O Bersurfaktan Ganda dengan Benzoil Aseton Sebagai Pembawa Kation
Full text linkTelah dilakukan penelitian tentang pengaruh tembaga(II) dan kadmium(II) terhadap persen ekstraksi merkuri(II) menggunakan emulsi membran cair tipe W/O bersurfaktan ganda dengan benzoil aseton sebagai pembawa kation. Kondisi optimum yang digunakan pada penelitian ini adalah sebagai berikut. Emulsi dibuat dengan menggunakan campuran surfaktan span-80 & span-20 = 2%, laju emulsifikasi = 2000 rpm selama 10 menit, rasio volume fasa membran/fasa internal = 1, konsentrasi HNO3 dalam fasa internal = 2M. Ekstraksi dilakukan terhadap larutan 30 ppm merkuri sebagai fasa eksternal dengan pH = 2 dan laju ekstraksi 300 rpm selama 10 menit serta rasio volume fasa eksternal/emulsi = 7, Hasil penelitian menunjukkan bahwa ekstraksi merkuri(II) dengan emulsi membran cair, relatif selektif terhadap tembaga(II) dan kadmium(II). Hasil penelitian juga menunjukkan bahwa keberadaan tembaga(II) dan kadmium(II) hingga 30 ppm, menurunkan persen ekstraksi merkuri(II) berturut-turut 12,12% dan 11,74%
MIKROENKAPSULASI MINYAK IKAN PORA-PORA (Mystacoleucus padangensis) MENGGUNAKAN METODE SPRAY DRYING UNTUK APLIKASI NUTRISI MAKANAN
Full text linkThe microencapsulated of Pora-Pora fish oil (Mystacoleucus padangensis) for food nutrition applications has been done. Production of fish oil using soxhletation extraction method with n-hexane for 6 hours. Manufactured of fish oil powder made by spray drying method using a coating material maltodextrin and gum arabic with a few variations. The characteristic of pora-pora fish oil has a yellow color, acid number 2.61 mg KOH/gr, free fatty acids (% oleic) 1.31 %, peroxide value 11.52 mek/kg, saponification value 89.76 mg KOH/gr and a water content of 0.3%. The composition of saturated fatty acid was 33.6 to 35%, and unsaturated fatty acids about 65 to 66.4%. Microencapsulated powder has a moisture content range from 4.8 to 7.3%, the yield ranged from 24.7 to 33.52%, and encapsulation efficiency maximum was 51%. The fatty acid composition has changed, the content of unsaturated fatty acids increased to 81, 1%. However, polyunsaturated fatty acids decreased.ABSTRAK
Telah dilakukan penelitian mengenai mikroenkapsulasi minyak ikan pora-pora (Mystacoleucus padangensis) untuk aplikasi nutrisi makanan. Produksi minyak ikan dilakukan dengan metode ekstraksi sokletasi dengan pelarut n-heksana selama 6 jam. Pembuatan bubuk minyak ikan dilakukan dengan metode spray drying menggunakan bahan penyalut maltodekstrin dan gum arab dengan beberapa variasi. Minyak ikan pora-pora memiliki karakteristik berwarna kuning, memiliki bilangan asam 2,61 mg KOH/gr, asam lemak bebas (% oleat) 1,31 %, bilangan peroksida 11,52 mek/kg, bilangan penyabunan 89,76 mg KOH/gr dan kadar air 0,3%. Komposisi asam lemak jenuh yang diperoleh adalah 33,6 - 35 %, dan asam lemak tak jenuh sekitar 65 - 66,4 %. Bubuk mikrokapsul memiliki kadar air berkisar 4,8-7,3%, rendemen berkisar antara 24,7-33,52% dan memiliki nilai efisiensi enkapsulasi maksimum 51%. Komposisi asam lemak mengalami perubahan, secara keseluruhan terjadi peningkatan kandungan asam lemak tak jenuh menjadi 81 ,1 %.
Kata Kunci: Mikroenkapsulasi, Minyak Ikan, Spray Dryer, Maltodekstrin, Gum Ara
PEMBUATAN BIOETANOL DARI BIJI JEWAWUT (Setaria italica) DENGAN PROSES HIDROLISIS ENZIMATIS DAN FERMENTASI OLEH Saccharomyces cerevisiae
Full text linkBioethanol production as a biofuels successor fossil fuels from jewawut seed (Setaria italica) through enzymatic hydrolysis process and fermentation use Saccharomyces cerevisiae has been carried out. This research aimed to determine levels of bioethanol production by various concentration of nutrients added and variation time of fermentation. Hydrolysis process by enzymatic through a liquefaction phase with -amylase and saccharification phase with gluco-amylase. Fermentation process by Spirulina sp. as a sources of nutrients. The result of hydrolysis was fermented by Spirulina sp. added with various at 0,5%; 1,05 and 1,5% (w/v), and then with variation time of fermentation at 5, 7 and 9 days. The highest concentration of bioethanol obtained are in addition of Spirulina sp. at 1,0% (w/v) for 7 days. The result of concentration obtained from density method was 88% and from gas chromatography method was 93,096%.Bioethanol production as a biofuels successor fossil fuels from jewawut seed (Setaria italica) through enzymatic hydrolysis process and fermentation use Saccharomyces cerevisiae has been carried out. This research aimed to determine levels of bioethanol production by various concentration of nutrients added and variation time of fermentation. Hydrolysis process by enzymatic through a liquefaction phase with -amylase and saccharification phase with gluco-amylase. Fermentation process by Spirulina sp. as a sources of nutrients. The result of hydrolysis was fermented by Spirulina sp. added with various at 0,5%; 1,05 and 1,5% (w/v), and then with variation time of fermentation at 5, 7 and 9 days. The highest concentration of bioethanol obtained are in addition of Spirulina sp. at 1,0% (w/v) for 7 days. The result of concentration obtained from density method was 88% and from gas chromatography method was 93,096%
Korelasi Kadar Total Logam Pb Terhadap Kadar Protein Pada Udang Putih (Penaeus marguiensis) Yang Diambil Dipesisir Pulau Bunyu Kalimantan Utara
Full text linkResearch on "Correlation levels of Pb to the total protein content in the white shrimp (Penaeus merguiensis) taken around the coast of North Borneo Bunyu Island". This study aims to determine the total concentration of Pb and protein levels in white shrimp by size and sampling different regions. then the total levels of Pb and protein correlated with Least Square method. Analysis of Pb total metal content by using AAS (Atomic Absorption Spectrophotometer) and analysis of protein content using the Kjeldahl method. In this study, the levels of Pb total in area 1 with an average of 0,738 mg/L, the levels of Pb total in area 2 with an average of 0.926 mg/L, the levels of Pb total area 3 with an average of 0,841 mg/L. The protein content of white shrimp in area 1 with an average of 27,8644%, protein content in area 2 gained an average of 29,0333% and 3 area gained an average protein content of 27,8635%. Correlation levels of Pb total the protein content of the white shrimp (Penaeus merguiensis) r = 0.87