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Warta IHP (Warta Industri Hasil Pertanian)
Published by Politeknik AKA Bogor
ISSN : 02151243     EISSN : 26544075     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering
Warta IHP (Industri Hasil Pertanian) is a Scientific Journal which is sourced from research papers, new theoretical/interpretive findings, and critical studies or reviews (by invitation) in the agro-based industry scope that cover any discipline such as: food science and technology, agricultural industry technology, chemistry and essential oils, agricultural products processing machinery, food microbiology, renewable energy, chemical analysis, and food engineering.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue " Vol 14, No 1-2 (1997)" : 6 Documents clear
(The Used of Chitosan in Waste Water Treatment) Sapto Hartanto, Eddy
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

Chitosan is biopolymer  that occur by treatment of chitin deactylation process, with strong alkali. Chitosan may be used in treating turbid matter in aqueous solution to help remove the turbid matter. Chitosan is used as a viscosity enhancer to settle solids suspended in liquids. Chitosan offers a good volume reduction of waste water, which is an essential requirement for water recovery and poilution prevention.
(Waste Water Treatment of Tofu Industries by Chemical and Physical(Aeration ) Processes to the Decreasing of BOD5 and Suspended Solid) Susanto, Eko; Rachmatunisa, Amelia
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

The waste water of tofu industries cause enviromental poblem due to its high BOD and suspended solid values. The decomposition of organic matters in the waste water will result in cloudness of the water and awful smell. Therefore it is necessary to reduce their organic matters by coagulation process using chemicals and continued solid values. The result showed that the aeration, the lower the BOD and suspended values would be. The 22 hours aeration would decrease the BOD value up to 84.36% and suspended solids value op to 91.32%.
(The Effect of Temperature and Duration of Freezing Process on The Isolation of Anethole From Star Anise (Illicium verum) Moestafa, Achmad; -, Chairul; Arifin, Agus
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

 Anethol that is used in flavor, fragrance and medicine is the main component of anise oil. Pure antehol has melting point around 21.6 to 22 derajat celcius that is close to room temperature. An attempt to isolate anethole from Star anise oil (Illicum verum) a studied through freezing process has been done. It was found when the oil was cooled to 12 derajat celcius almost all the oil was solidified. The crystal contains 89% anethole that is not pore enough. When the oil was cooled at 14 derajat and 16 derajat celcius, 30% and 7% of the oil was crystallized respectively and contained 90% and 94% anethole. The experiment showed the lower the temperature, the least pure anethole was collected. A technique to isolate anethole from star anise oil can be done by fractional crystallization. 
(Process Quality Upgrading and Better Utilization of Java Citronella Oil) Sait, Salya; Hawani Lubis, enny; Farida Hutajulu, Tiurlan; -, Subagja
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

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.
(Research on Substitution of Tempe Flour in Snack Puff Extrusion) Nurlaelyah, Elly
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

The research was aimed at studying the substitution rate of tempe flour for corn flour in the product of snack extrusion. The preliminary study was conducted to find out the suitable rate of tempe flour substitution. The following percentages were used : 5, 10, 15, 20, 25, %. The results of these 5, 10, 15 % were used in the main study. Proximate chemical analysis and organoleptic test were conducted on the snack extrusion produced. The result showed that the use of tempe flour is acceptable to 10% substitution.
(The Effects of Drying on Rehidration Coefficient, Shear and Rendement of Mushroom) Alamsyah, Rizal; Mahdar, Putiati; Syah, Ishak
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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Abstract

Data relating to physical properties and characteristic of dried mushroom was very useful information especially for packaging, storage, and transportation purposes. The objectives of this study were to investigate some physical characteristics covering, rehidration coefficient, shear stress, as well as rendement of mushroom affected by drying. The drying experiment were conducted at 4 level temperature (35 derajat celcius, 40 derajat celcius, 45 derajat celcius and 50 derajat celcius), and level 4 drying air speed (1 m/sec, 1.5 m/sec, 2.0 m/sec, and 2.5 m/sec) with and without blanching treatment. Dried mushroom with blanchead treatment gave better rendement (aximum 12,67%) and shear stress value (maximum 18954,00 Newton/m2) comparing with those without blanched treatment. In the other hand dried mushroom with blanched treatment showed better appearance and rehiration coefficient (maximum 4,31) than those without blanched treatment.

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