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INDONESIA
Jurnal Litbang Industri
Published by Kementerian Perindustrian Republik Indonesia
ISSN : 22523367     EISSN : 25025007     DOI : 10.24960
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Litbang Industri (JLI) adalah jurnal ilmiah yang terbit secara berkala dua kali setahun pada bulan Juni dan Desember. JLI memuat artikel primer yang bersumber langsung dari hasil riset industri, olahan hasil pertanian, penanggulangan pencemaran industri. Semua naskah direview oleh mitra bestari. Jurnal Litbang Industri Padang diterbitkan oleh Balai Riset dan Standardisasi industri Padang, Badan Penelitian dan Pengembangan Industri, Kementerian Perindustrian Republik Indonesia. p-ISSN: 2252-3367 e-ISSN: 2502-5007
Arjuna Subject : -
Articles 14 Documents
 1   2 
Search results for , issue "Vol 2, No 2 (2012)" : 14 Documents clear
Determination of Benzoic Acid, Sodium Saccharin, And Caffeine By High Performance Liquid Chromatography Arief Yandra Putra; Fitri Mairizki; Hamzar Suryani; Safni Safni
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (98.21 KB) | DOI: 10.24960/jli.v2i2.603.79-86

Abstract

Concentrations of benzoic acid, sodium saccharin and caffeine in soft drink samples were determined by using Reverse Phase High Performance Liquid Chromatography (HPLC). The optimum analytical conditions of those three samples was methanol-phosphate buffer (1:7) as mobile phases, with pH 4.5 and flow rate 1.0 mL/min, column C18 (150x4.6 mm i.d.) as stationary phases at 400C with UV-Vis Spectrophotometer detection at 220 nm. The concentration level of those compounds observed was not beyond the maximum limit of SNI 01-011101995 for sodium saccharin and benzoic acid and SNI 01-6684-2002 for caffeine. The relative standard deviation based on retention time and peak area, as 0.37% and 0.59% for benzoic acid, 0.16% and 0.21% for sodium saccharin, 0.38% and 0.6% for caffeine. Finally, the recovery for benzoic acid, sodium saccharin and caffeine was 100.82%, 94.92% and 90.32%, respectively. The relative standard deviation and recovery of all samples met AOAC method requirements.ABSTRAKPenelitian tentang penentuan asam benzoat, natrium sakarin dan kafein telah dilakukansecara Kromatografi Cair Kinerja Tinggi (KCKT) Fasa Balik. Kondisi optimum analisis dariketiga senyawa di atas adalah fasa gerak metanol-bufer fosfat (1:7) dengan pH 4,5, laju alir 1 mL/min, kolom C18 (150 x 4,6 mm i.d.) dengan temperatur 40oC dan pendeteksiandengan Spektrofotometer UV/Vis pada panjang gelombang 220 nm. Metoda ini diaplikasikan pada beberapa sampel minuman ringan. Kadar ketiga senyawa ini di dalam sampel tidak melebihi batas maksimum yang diizinkan yaitu berdasarkan SNI 01-0222-1995 untuk natrium sakarin dan asam benzoat serta SNI 01-6684-2002 untuk kafein. Standar Deviasi Relatif ketiga senyawa ini berdasarkan waktu retensi dan luas puncak secara berturut-turut adalah; asam benzoat 0,37% dan 0,59%, natrium sakarin 0,16% dan 0,21%, kafein 0,38% dan 0,60%. Hasil perolehan kembali dari ketiga senyawa ini adalah asam benzoat 100,82%, natrium sakarin 94,92%, kafein 90,32%. Standar Deviasi Relatif dan perolehan kembali ketiga senyawa ini memenuhi persyaratan metoda AOAC.
Pengaruh Metoda Pemberian Bumbu dan Jenis Ikan terhadap Mutu dan Nilai Sensorik pada Ikan Air Tawar Asap Failisnur Failisnur
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.372 KB) | DOI: 10.24960/jli.v2i2.604.87-96

Abstract

Fish is a high quality food, especially because it contains a lot of protein, fat, vitamins and minerals that are very good and prospective for food source. However, it is highly perishable food in storage so that required treatment such process into smoked fish. Quality of smoked fish is strongly affected by raw materials, smoking material type, the preparation process, temperature and length of smoking and its packaging. So it was produced a smoked fish with a distinctive flavor and aroma. This study was conducted with the spices treatment method using ground spices and soaking in the extracts spices, and the treatment used a variety of freshwater fish those were lele (Clarias gariepinus), mujair (Oreochromis mossambicus), and nila (Oreochromis niloticus). Smoked fish products were then analyzed for total phenols, water content, protein, fat. Organoleptic test of taste, texture and aroma was also done. Test results showed that the best treatment was lele fish soaked in spices of extracts solution. The chemical tests were obtained total phenol; 45.05 ppm, water content; 11.06%, protein;  66.65% and fat; 5.87% respectively. Furthermore the organoleptic test were preferred with hedonic scale 4.57; 4.50; 4.02 and 4.10 respectively for the taste, texture, color and aroma.
Aplikasi Gambir Sebagai Bahan Penyamak Kulit Melalui Penerapan Penyamakan Kombinasi Anwar Kasim; Sri Mutiar
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v2i2.600.55-62

Abstract

The research on “application ofgambieras atanning agentby using alum and gambier”had been done to findthe optimumconcentrationand produce leatherthat meetsindustry standards, moreoverto subtitute chrome as a tanningmaterialthathas a negative impacton the environment. 45 sheets goat leather were used in this research. The phase I of tanningused alumthat consisted of 5 concentration levels (3%, 5%, 7%, 9% and 11% w/v), then continued with phase II that used  gambier as a tanning agentwhich consisted of 3 concentration level (3%, 6% and 9% w/v) with 3 replications. The results showedthat all leathersmet the SNI-06-0463-1989, standardfor the leather layer of tanning combination and SNI-0253-2009, standardfor the upper skin of goat legs to the chemical and physical properties. The optimum use of alum as a combination tanning agent in phase I was found to be 3% and followed by phaseIItanning agentusinggambierto be 3%. Analytical Results showed that the levels oftanned bound: 32.88%, tanning degree: 88.62%, tensile strength: 449.17kg/cm2and percentage extension:16% respectively.ABSTRAKPenelitian tentang “aplikasi gambir sebagai bahan penyamak kulit melalui penerapan penyamakan kombinasi dengan menggunakan tawas dan gambir” dilakukan dengan tujuan untuk mengetahui konsentrasi yang optimal serta menghasilkan kulit samak yang memenuhi standar industri, dan untuk menghindari penggunaan bahan penyamak krom yang berdampak negatif terhadap lingkungan. Penelitian ini menggunakan kulit kambing. Pelaksanaan proses penyamakan kulit tahap I menggunakan tawas yang terdiri atas 5 taraf konsentrasi (3%, 5%, 7%, 9% dan 11%), kemudian dilanjutkan dengan penyamakan nabati tahap II dengan menggunakan gambir 3 taraf konsentrasi (3%, 6%, dan 9%) dengan 3 kali ulangan. Hasil penelitian menunjukkan bahwa semua hasil memenuhi standar SNI-06-0463-1989 tentang kulit lapis samak kombinasi dan SNI-0253-2009 tentang kulit bagian atas kaki kulit kambing terhadap sifat kimia dan fisik.Penggunaan zat penyamak kulit kombinasi yang optimum yaitu menggunakan penyamakan tahap I dengan tawas pada konsentrasi 3% dan dilanjutkan dengan penyamakan tahap II dengan menggunakan gambir pada konsentrasi 3%. Karakteristik kulit hasil pengamatan kulit tersamak adalah kadar tanin terikat: 32,88%, derajat penyamakan: 88,62%, kekuatan tarik: 449,17 kg/cm2 dan kemuluran: 16%.
Pengaruh Penambahan Susu Bubuk Fullcream Terhadap Mutu Produk Minuman Fermentasi dari Ekstrak Ubi Jalar Merah (Ipomoea batatas L) Novelina Novelina; Rifma Eliyasmi; Siska Ariani; Firdausni Firdausni
Jurnal Litbang Industri Vol 2, No 2 (2012)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v2i2.605.93-102

Abstract

This study was aimed to find exact volume of fullcream milk powder which added in the fermented beverage of red sweet potatoes extract (Ipomoea batatas L), as well as to investigate physical and chemical characteristics, and organoleptic. So it was obtained the fermented beverages which fulfilled the quality requirements of yogurt according to SNI 01- 2981-1992. Analysis was conducted on total Lactobacillus, total plates count, total lactic acid, pH, total solids, viscosity, and fat content. Organoleptic test of the color, texture, flavor, consistency, and taste was also carried out. The best product was analyzed for the chemical properties such as protein content, ash and crude fiber. The design used in this study was completely randomized design (CRD) with four treatments of fullcream milk powder addition 5%, 10%, 15% and 20% respectively with 3 replications. The organoleptic test of the most preferred by the panelists was a fermented beverage with the addition of 10% fullcream milk powder. This product contained Lactobacillus total; 7.3 x 108 CFU/ml, total plate count; 1.4 x 107 CFU/ml, total lactic acid; 1.56%, pH; 4.42, total solids; 25.62%, viscosity; 25.5 dPa.s, fat content; 3.4%, protein content; 6.34%, ash content; 0.11%, and crude fiber content; 0.17%.ABSTRAKPenelitian ini bertujuan untuk mengetahui jumlah penambahan susu bubuk fullcream yang tepat pada minuman fermentasi ekstrak ubi jalar merah (Ipomoea batatas L), sertakarakteristik fisik, kimia dan organoleptik, sehingga diperoleh minuman fermentasi dariekstrak ubi jalar merah yang memenuhi persyaratan mutu yogurt menurut SNI 01 - 2.981- 1.992. Analisis dilakukan pada total Lactobacillus, angka lempeng total, asam laktat total, pH, total padatan, viskositas, kadar lemak dan organoleptik warna ,tekstur, rasa, konsistensi, rasa. Produk terbaik yang didapatkan dianalis sifat kimia seperti kadar protein, abu dan serat kasar. Rancangan yang digunakan dalam penelitian ini adalah rancangan acak lengkap (RAL) dengan 4 perlakuan penambahan susu bubuk fullcream 5%, 10%, 15% dan 20% dan 3 kali ulangan. Uji organoleptik yang paling disukai oleh panelis adalah perlakuan penambahan susu bubuk fullcream 10%. Produk ini mengandung Lactobacillus total dari 7,3 x 108 CFU / ml, angka lempeng total 1,4 x 107 CFU / ml, asam laktat sebesar 1,56%, pH 4,42, total padatan 25,62%, 25,5 dPa.s viskositas, kandungan lemak 3,4%, kadar protein 6,34%, kadar abu 0,11%, kadar serat kasar 0,17%.

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