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All Journal Warta IHP (Warta Industri Hasil Pertanian)

Subagja -

Balai Besar Industri Agro

Author-ID : 3058874

Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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(Process Quality Upgrading and Better Utilization of Java Citronella Oil) Salya Sait; enny Hawani Lubis; Tiurlan Farida Hutajulu; Subagja -
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

To obtain the good quality of International Market Standard and better oil as raw material for rose oil synthetic where as the price of natural rose oil is much higher in price that of synthetic. The fractional distillation process was employed on crude Java Citronella oil grown in Sukabumi and Purwokerto to obtained the oil with international market quality and the oil fraction was used as basic material for rose oil synthesis. It was concluded that due to a high cost of the fractional distillation, it was unable to raise the economic added value of crude oil via quality improvement using this process except when the oil fraction was used as basic material for rose oil synthesis.

(Catechin and Epicatechin Analysis in Cacao Bean and Cacao products Using Liquid Chromatography Mass Spectrometry) Subagja -; Harmita -; Herman Suryadi; Lukman Junaidi
Warta Industri Hasil Pertanian Vol 26, No 02 (2009)
Publisher : Balai Besar Industri Agro

Cacao beans processing into product may affect active compound contents in the final products, especially catechin and epicatechin. Temperature treatments during cacao processing can induce epimerization reaction of (-)-epicatechin to be (-)-catechin. Therefore, catechin and epicatechin ratio in the samples would be change. The aim of the was to know imfluence during cacao beans processing, especially cathechin and epicatechin concentration. Samples taken during the process were cacao nib, cacao mass, cacao powder, and butter. Analysis of catechin and epicatechin in samples was carried out by liquid chromatography mass spectrometry. Analytical for catechin were using mobile phase A (0.1 %formic acid in deionized water) and mobile phase B (acetonitril-methanol = 50:50) at flow rate of 0.5 ml/min. gradient elution were set at 0 minutes (10%B), 15 minutes (35%B), 20 minutes (40%B), 30 minutes (50% B), 35 minutes (60% B), and 35.1 minutes (105 B). Mass sprectrometer was set at ESI voltage (-) 3500 volt, desolvation temperature 300 oC, nubelizer pressure 50 psi, desolvation gas 10L/min, and fragmentor voltage (-) 160 volt. Results of the research showed that of catechin and cacao nib, cacao mass and cacao powder were 1:21,7; 1:20,0; and respectively. Heat treatments during cacao mass processing sowed a decrease tendency of catechin and epicatechin concentrations.

(Coleus amboinicus Lour) (Techno Economic Analysis of Production Unit of Torbangun (Coleus amboinicus Lour) Extraxt Powder) Lukman Junaidi; Tiurlan F. Hutajulu; Dadang Supriatna; Subagja -; Eddy Sapto Hartanto
Warta Industri Hasil Pertanian Vol 27, No 02 (2010)
Publisher : Balai Besar Industri Agro

Torbangun leaves could be extraxted to produce powder whice could be used as a raw material for nutraceutical or medicenal industri. techno economic analysis was conducted to evaluate the financial viability of the production unit of torbangun extract powder. the results of analisis showed that the production unit of torbangun extract powder was very feasible financially. based on the techno economic analysis, the production unit of torbangun extract powder resulted the net present value (NPV) i.e. Rp 650.170.746, internal rate of return (IRR) i.e.36,73% and pay back period i.e. 2,72 years. the break oven point of the production unit of torbangun extract powder was Rp 242.979.681 per year and the based price was Rp 355.239 per kg. the sensitivity analysis showed that the viability of the production unit o torbangun extract powder was very sensitive to the changes in the raw material cost,product price,and yield of the process. on the other hand the changes in the investment cost, electricity, and and working days,ware not sensitive to the viability of production unit of torbangun extract powder.

(The Use of Organic Acid and Thermal Adequacy on the Canned String Beans) Ngakan Timur Antara; H G. Pohan; Subagja -
Warta Industri Hasil Pertanian Vol 18, No 1-2 (2001)
Publisher : Balai Besar Industri Agro

Research on the canned string beans has been conducted .the formulation used was 1% salt,the organic acid (0.27% citric acid and 0.22% lastic acid ) and types of packaging (timplate and retort pouch) the product were stored for 0,2,4 and weeks the results showed that the result showed that the effect of storage gave the decrease of PH ,protein ,vitamin c and hardness.the microbial contents were relatively unchanged during storage .the process time required for tinplate retort pouch were 0.057 minutes respectively ,which adequate to render to canned string beans (pH< 4.5) microbiologically safe .

Co-Authors Dadang Supriatna Eddy Sapto Hartanto Enny Hawani Lubis H G. Pohan Harmita - Herman Suryadi Lukman Junaidi Ngakan Timur Antara Salya Sait Tiurlan F. Hutajulu Tiurlan Farida Hutajulu

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