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OPTIMASI PROSES EKSTRAKSI OLEORESIN LADA HITAM SECARA MASERASI DAN BANTUAN GELOMBANG ULTRASONIK MENGGUNAKAN METODE PERMUKAAN RESPON (Optimization on Extraction Of Oleoresin From Black Pepper (Piper nigrum L.) Using Maceration And Ultrasonic Method By Resp Fitriyana, Liya; Salamun, Adi; Syaubari, Syaubari
Jurnal Hasil Penelitian Industri Vol 29, No 2 (2016)
Publisher : Baristand Industri Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.353 KB)

Abstract

The purpose of this study is to determine the optimum conditions of extraction usingconventional methods (maceration) and ultrasonic methods by using Response Surface Method (RSM). Thevariables used in this study are ratio of solvent to black pepper, temperature and time of extraction. Solventused in this study is 99% ethanol. The biggest yield of oleoresin using maceration method was 4.42% with aratio of solvent to black pepper for 1:4 g/mL and extraction time of 4.68 hours. The biggest yield of oleoresinusing ultrasonic method was 4.94% in the ratio of solvent to black pepper for 1:5 g/mL, temperature extraction70° C and extraction time 4 hours. GC-MS analysis showed that the piperine contained in oleoresin extractedby using maceration and ultrasonic methods are 69.92% and 63.5%, respectively. FT-IR analysis showed thatoleoresin extracted using maceration and ultrasonic methods have piperine bound. Organoleptic test showedthat oleoresin produced by using maceration and ultrasonic extraction method meet the requirement of SNI 06-2388-1998 (dark brown color, pepper smell and thick paste form).
Uji Mekanik Plastik Biodegradable dari Pati Sagu dan Grafting Poly(Nipam)-Kitosan dengan Penambahan Minyak Kayu Manis (Cinnamomum burmannii) Sebagai Antioksidan Safitri, Isna; Riza, Medyan; Syaubari, Syaubari
Jurnal Litbang Industri Vol 6, No 2 (2016)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.169 KB) | DOI: 10.24960/jli.v6i2.1914.107-116

Abstract

Nonbiodegradable plastic is packaging that can be decomposed by microorganisms so that a viable alternative to replace conventional plastic packaging that cause problems for the environment. This study was aimed to evaluate the effect of the mechanical test and others consisting of three variables and each variable consists of three  level of concentration. The first variable was additional grafting of Poly (Nipam) - chytosan consisting of 5%, 7% and 9%. The second variable was additional glycerols which were 15%, 30%, 45%. The third variable was concentrations of cinnamon oil which were 10%, 15% and 20%. This research produced a thin sheet of plastic, transparant, and elastic and it had a slightly yellowish translucent color. The tensile strength value was about 1.34-2.57MPa, 36.22-66.30% of elongation value, and 22.22% -58.82% of water absorption. Antioxidant test was performed by wrapping an apple with biodegradable plastics containing cinnamon oil. It could inhibit the growth of microorganisms. The apples changed significantly on day 8. In biodegradability test, this plastic was decomposed after buried for 56 days in the soil.ABSTRAKPlastik biodegradable adalah kemasan yang dapat diurai oleh mikroorganisme sehingga menjadi alternatif untuk menggantikan plastik kemasan konvensional yang menimbulkan permasalahan bagi lingkungan. Penelitian ini bertujuan untuk mengevaluasi pengaruh terhadap uji mekanisnya dan lain-lain yang terdiri atas tiga variabel dan masing-masing variabel terdiri dari tiga taraf kosentrasi. Variabel pertama adalah variasi penambahan grafting Poly(NIPAM)-kitosan yang terdiri dari kosentrasi 5%, 7% dan 9%.  Variabel kedua adalah variasi penambahan gliserol yang terdiri dari kosentrasi 15%, 30%, 45% dan variabel ketiga adalah variasi penambahan minyak kayu manis yang terdiri dari kosentrasi 10%, 15% dan 20%. Penelitian ini menghasilkan plastik berupa lembaran tipis, transparan, dan elastis serta memiliki warna bening sedikit kekuningan. Plastik yang dihasilkan memiliki nilai kuat tarik sebesar 1,34-2,57 MPa, elongasi 36,22- 66,30%, dan penyerapan air 22,22%-58,82%. Hasil uji antioksidan dilakukan dengan membungkus apel dengan plastik biodegradable  yang mengandung minyak kayu manis mampu menghambat pertumbuhan mikroorganisme, apel mengalami perubahan signifikan  pada hari ke 8. Pada uji biodegrabilitas plastik ini terurai dalam tanah selama 56 hari.
THE PERFORMANCE AND CHARACTERIZATION OF BIODEGRADABLE PLASTIC FROM TAPIOCA STARCH: EFFECT OF MODIFIED CHITOSAN Ernita, Lia; Riza, Medyan; Syaubari, Syaubari
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i1.15441

Abstract

The performance and characterization of biodegradable plastic from tapioca starch was studied. Modified the chitosan was one of the ingredients for produce  the biodegradable plastics. The produced biodegradable polastic were thin sheet plastic, elastic and transparent. The biodegradable plastic performance had tensile strength between 2,26-3.73 Mpa, elongation ranges from 17.24 to 76.76%, and water absorption ranges from 30.81-268.9%. In antioxidant analyze, apples are wrapped in plastic and had significant mechanical properties changes on 8th day.Morphology scanning result showed that in the chitosan-polyNIPAM there were no cavities may caused high hydrophilicity in the biodegradable plastic.
Affinity Precipitation Of Enzyme By Using Conjugated Ligand-Poly(Nipam) Polymer Syaubari, Syaubari; M, Saari M; T.G, Chuah; G, Zulkafli; M, Ishak
Jurnal Sains dan Teknologi Reaksi Vol 3, No 2 (2005): Jurnal Sains dan Teknologi Reaksi
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v3i2.51

Abstract

In this paper, preparation of N-isopropylacrylamide of varying transfer chain lengths was synthesized. p-Aminobenzamidine (PABA) was chemically linked to the carboxyl groups of these polymers to obtain thermoprecipitating affinity polymers. The polymer to which PABA was linked through a carboxyl groups exhibited increase with polymer containing various PABA. Investigations on experiment showed that this enhancement in trypsin binding by the polymers was due to the p-aminobenzamidines to microenvironmental effects. Recovery and specific activity of the trypsin recovered increased with the low molecular weight of polymer.Keywords: Ligand, p-aminobenzamidine, trypsin, recovery, affinity precipitation
Pengembangan Produk Minyak Nilam Dalam Upaya Memenuhi Standar Quality Patchouli Alcohol Menggunakan Chemometric Khalid, Zikrul; Meilina, Hesti; Syaubari, Syaubari; Munawar, Agus Arip
Jurnal Serambi Engineering Vol 1, No 2 (2017)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1186.468 KB)

Abstract

Minyak nilam merupakan salah satu komoditas ekspor paling besar di Indonesia, akan tetapi saat ini kualitias dari minyak nilam masih sangat rendah hal ini ditandai dengan rendahnya kandungan patchouli alkohol sebagai kompenen utama. Tujuan dari penelitian ini yaitu untuk menganalisis komponen  utama minyak nilam (patchoulialkohol) secara cepat tanpa merusak sampel. Rancangan penelitian ini menggunakan model kalibrasi dan validasi pada patchouli alkohol dengan menggunakan Partial Least Square (PLS) sebagai bagian dari analisis Chemometrics. Hasil penelitian menunjukkan bahwa peningkatan performa kinerja PLS pada pretreatment multiplicative scatter correction dengan nilai RPD yang paling besar yaitu 302,5. Sehingga dapat tergolong ke dalam good model performance dengan nilai koefisien korelasi (r) yang tinggi 0,99, nilai koefisien determinasi (R2) yang bagus 83%, dan nilai error (RMSECV) yang paling kecil yaitu 0,02.
NUMERICAL SOLUTION OF ELECTROKINETICS MASS TRANSFER MODEL FOR PROTEIN RECOVERY THROUGH MEMBRANE ELECTROFILTER syaubari, Syaubari; Nurdin, S.
Reaktor Volume 07 No.2 Desember 2003
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3098.872 KB) | DOI: 10.14710/reaktor.7.02.66-69

Abstract

Separation based on electrophoresis and electroosmosis (electrokinetics) of binary mixture of proteins (bovine serum albumin-hemoglobin) was studied on a membrane electrofilter. The mixture was separated using ionic polycarbonate membrane with variable studied consist of voltage, current, protein diffusivity, and electrophoresis mobility. Operation parameters were varied to investigate hemoglobin concentration, which pass semi permeable membrane. A model was been derived based on mass transfer principle for the case of unsteady state. For simplification, the model has been modified using Cramer Method with pseudo steady state approach to give the dimentionless form. A program for computer simulation has een written in C/C+ + language. This programming language was shown to have more effective computing ability. Furthermore, using a model and simulation on computer, the result indicates that initial mechanism of electrofilter can also be used to separate and to concentrate protein on their buffer solution.Keywords : electrophoresis, electroosmosis, protein, membrane, electrofilter
Uji Mekanik Plastik Biodegradable dari Pati Sagu dan Grafting Poly(Nipam)-Kitosan dengan Penambahan Minyak Kayu Manis (Cinnamomum burmannii) Sebagai Antioksidan Safitri, Isna; Riza, Medyan; Syaubari, Syaubari
Jurnal Litbang Industri Vol 6, No 2 (2016)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.169 KB) | DOI: 10.24960/jli.v6i2.1914.107-116

Abstract

Nonbiodegradable plastic is packaging that can be decomposed by microorganisms so that a viable alternative to replace conventional plastic packaging that cause problems for the environment. This study was aimed to evaluate the effect of the mechanical test and others consisting of three variables and each variable consists of three  level of concentration. The first variable was additional grafting of Poly (Nipam) - chytosan consisting of 5%, 7% and 9%. The second variable was additional glycerols which were 15%, 30%, 45%. The third variable was concentrations of cinnamon oil which were 10%, 15% and 20%. This research produced a thin sheet of plastic, transparant, and elastic and it had a slightly yellowish translucent color. The tensile strength value was about 1.34-2.57MPa, 36.22-66.30% of elongation value, and 22.22% -58.82% of water absorption. Antioxidant test was performed by wrapping an apple with biodegradable plastics containing cinnamon oil. It could inhibit the growth of microorganisms. The apples changed significantly on day 8. In biodegradability test, this plastic was decomposed after buried for 56 days in the soil.ABSTRAKPlastik biodegradable adalah kemasan yang dapat diurai oleh mikroorganisme sehingga menjadi alternatif untuk menggantikan plastik kemasan konvensional yang menimbulkan permasalahan bagi lingkungan. Penelitian ini bertujuan untuk mengevaluasi pengaruh terhadap uji mekanisnya dan lain-lain yang terdiri atas tiga variabel dan masing-masing variabel terdiri dari tiga taraf kosentrasi. Variabel pertama adalah variasi penambahan grafting Poly(NIPAM)-kitosan yang terdiri dari kosentrasi 5%, 7% dan 9%.  Variabel kedua adalah variasi penambahan gliserol yang terdiri dari kosentrasi 15%, 30%, 45% dan variabel ketiga adalah variasi penambahan minyak kayu manis yang terdiri dari kosentrasi 10%, 15% dan 20%. Penelitian ini menghasilkan plastik berupa lembaran tipis, transparan, dan elastis serta memiliki warna bening sedikit kekuningan. Plastik yang dihasilkan memiliki nilai kuat tarik sebesar 1,34-2,57 MPa, elongasi 36,22- 66,30%, dan penyerapan air 22,22%-58,82%. Hasil uji antioksidan dilakukan dengan membungkus apel dengan plastik biodegradable  yang mengandung minyak kayu manis mampu menghambat pertumbuhan mikroorganisme, apel mengalami perubahan signifikan  pada hari ke 8. Pada uji biodegrabilitas plastik ini terurai dalam tanah selama 56 hari.
Pengujian Mekanik dan Biodegradabilitas Plastik Biodegradable Berbahan Baku Pati Bonggol Pisang dengan Penambahan Kitosan, Sorbitol, dan Minyak Kayu Manis Oetary, Dewi; Syaubari, Syaubari; Riza, Medyan
Jurnal Serambi Engineering Vol 4: No. Edisi Khusus (Oktober 2019)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.217 KB) | DOI: 10.32672/jse.v4i2.1423

Abstract

Biodegradable plastic is an alternative to conventional plastic which has been very difficult to degrade and causes environmental pollution. Biodegradable plastic raw materials come from plants or plant wastes, so they are easily degraded by the environment and the utilization of waste becomes more efficient. The general objective of this study is to obtain the characteristics of plastics that meet the standards by varying the concentration of the materials used. This study used Kepok banana hump starch with variations in the concentration of chitosan, sorbitol, and cinnamon oil. The variable used is the ratio of weight of starch and water (1: 5). The concentration of chitosan nanoparticles was 0.25%, 0.5%, and 0.75%, sorbitol concentrations were 2 ml, 4 ml, and 6 ml, and the concentration of cinnamon was 0%, 0.5%, and 1%. Tests carried out are tensile strength, elongation of break, water absorption, and biodegradability. The best tensile strength results are 19.6 MPa, the best elongation is 47.69%, the highest water absorption is 53.77% and the lowest is 22.63%, and the complete degradation takes the longest time of 77 days.