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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

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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.
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

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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.