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(Study on the Effect Of Various Heat Treatment Process to the Refined Deodorized Bleached Castor Oil) Rizal Alamsyah; Mirna Isyanti; Yuniarti -
Warta Industri Hasil Pertanian Vol 24, No 01 (2007)
Publisher : Balai Besar Industri Agro

Heat treatment is one of the important factors in refining castor oil since it was able to coagulate amino acid so that thefat could be easily extracted. The heat treatment conducted were roasting, steaming, and drying. It was conducted before pressing of castor seed. Meanwhile refining castor oil consist of cleaning, grading, drying, pressing, deguming, sentrifusing mixing, bleaching and filter screening (vacuum), washing and quality testing. Pressing of castor kernel was conducted with 50 tons hydrolics press and screw press. Refined castor oil treatment with oven temperature 60 degree celcius for 1 hour showed the higest yield from the other treatment and also the clearer colour. Various concentration and combinationof oxidator was used to produce modified castor oil from refined castor oil. Oxidator used were H2O2 (3% and 5%), KMnO4 (3% and 5%). The best result oxidized castor oil was processed from refined castor oil and oxidator H2O2 3% with 1:5 comparison of volume.

(Heat Pump Drying (HPD) ; Mechanism, technical Analysis, Classification and Its Application) Rizal Alamsyah
Warta Industri Hasil Pertanian Vol 22, No 01 (2005)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32765/warta ihp.v22i01.2527

Heat pump drying (HPD) is one of innovative drying methods due to many advantages in drying for agricultural,food,and timber product.HPD is a drying can employ significant reduction of the energy consumption by energy recovery from condensation humudity.Comparing to orther drying methods such as fluidized,spouted, vaccum drying,HPD was leading in high water removal (kg H2O/kw/hour), wide operating drying temperature scale,wide operating humidity,better quality products,and low operational cost.So far HPD still has some limitation in its application such as the use of CFCs (Cloro fluoro carbon)as refrigerant that is not environmental friendlier,needs regular maintenance for all components of drying system including refrigerant charging, the possilibities for leak of refrigerant, and increase of operational cost.In drying food product,application of HPD was succesful especially in resulting uniform moisture contant,better tensile strength.Timber drying was also enhanced by HPD and the result show that the dried timber has better quality in terms of reduction brown tain in radiana pine,collapse,case hardening,and warpage.The latest tecnology of HPD was hybrid HPD covering fluidized bed HPD,infra red HPD, radio freqiency HPD, solar energy HPD,and multiple chambers of HPD.

Pembuatan Nata dari bahan Baku Air dengan Perlakuan Konsentrasi Nutrisi dan Mikroba Rizal Alamsyah; Enny Hawani Loebis
Warta Industri Hasil Pertanian Vol 32, No 02 (2015)
Publisher : Balai Besar Industri Agro

Masalah dalam produksi nata de coco adalah keterbatasan air kelapa sebagai bahan baku. Kendala lain adalah bahwa air kelapa tidak dapat disimpan untuk waktu yang lama yang diakibatkan kerusakan nutrisi dalam air kelapa oleh mikroba. Penelitian ini bertujuan untuk menilai efek dari mikroba dan konsentrasi nutrisi pada produksi nata dengan menggunakan air tawar sebagai bahan baku. Produksi nata dengan menggunakan substrat air dilakukan dengan menambahkan gula sukrosa (gula) 10%, urea 0,5%, asam glacial asetat 2 % atau cuka dapur 25% sebanyak 16 ml / liter air kelapa. Nata pembuatan dilakukan melalui tahapan sebagai berikut: peremajaan kultur A. xylinum, preparasi substrat, preparasi starter, fermentasi, pemanenan produk, dan evaluasi hasil. Hasil yang diperoleh menunjukkan bahwa jenis air yang memberikan kualitas terbaik berasal dari air mineral dengan pendidihan terlebih dahulu. Hasil yang sama juga menunjukkan dari nata berasal dari air sumur. Kekurangan nata de coco yang dihasilkan dari air adalah rendemen yang lebih rendah dibandingkan dengan nata yang dihasilkan dari media air kelapa. Karakteristik lain dari nata yang dihasilkan dari air adalah elastisitas produk yang sama, kadar abu yang rendah, dan warna putih.

Processing, Financial, And Swot Analysis Rizal Alamsyah; Arief Budhiono; Yang Yang Setiawan; Herry Rinaldi
Warta Industri Hasil Pertanian Vol 19, No 1-2 (2002)
Publisher : Balai Besar Industri Agro

This study described about analysis of processing ,financial and SWOT (strength weakness,opportunities,and threats) for jackfruit vacuum frying processing for vacuum frying of jackfruit the frying condition (pressure and temperature ) frying rate,and organoleptik test were investigated.the jackfruit are submerged in heated solid frying oil induce vavorization of the water from the jackfruit . this was conducted under vacuum pressure of-70 cm Hg ,and temperature level of 75 0C and 80 0C such condition was done to minimize the heat used and therefore reduce changes in composition, color ,taste, and flavor of the jackfruit the results showed that the product has low moisture content of 3.58% ( wet basis)with the taste,flavor ,color, and volume similar to the fresh jackfruit .this experiment was conducted using 3 kg of jackfruit ,the yield of the product was 22% and the total water removal was 2510 ml. it finalcial analysis was conducted to evaluate the financial viability of jackfruit processing.financial analsyis of the jackfruit production capacity of 30 kg per day showed that NPV (net present value) was rp 52.391.000 which was bigger than investment cost,IRR( internal rate return) was 51% and PBP(pay back period

(Shelf Life Prediction Of Beef "Dendeng"(Spiced Dried Meat)Using Arrhenius Kinetics) Rizal Alamsyah; Putiati Mahdar; Muliandi -
Warta Industri Hasil Pertanian Vol 12, No 1-2 (1995)
Publisher : Balai Besar Industri Agro

This study was aimed at predicting "dendeng" (Spiced dried meat)shelf life employing the application of arrhenius kinetics.It was based on the moisture content increase,the oxygen consumption. And colour changes of dendeng. The experiment were conducted at there temperature levels i.e. 25 degree C,35 degree C,and 45 degree C and Rh 60%.The Factor strongly influenced in predicting shelf life was temperature.The Arrhenius kinetics method based on oxygen consumption showed good result since it gave the short test shelf life.

The Optimation of Shrimp Shells Demineralisation, Deproteinisation, and Deasetilation on Water Soluble Chitosan Production Rizal Alamsyah; Susi Heryani; Irma Susanti
Warta Industri Hasil Pertanian Vol 29, No 01 (2012)
Publisher : Balai Besar Industri Agro

Shrimps shell still considered a solid waste (solid waste) and the problem of environmental pollution. Shrimp shell processing into high value-added products such as chitin and chitosan water soluble can expand its application in user industries. This study was aimed to obtain optimal condition for shrimp shells which resulted from quick frozen shrimp into water soluble chitosan (WSC). Stage of the process was conducted on the extraction of chitin (demineralization and deproteinasi), extraction of acid-soluble chitosan (ASC) (deacetylation), and manufacture of water-soluble chitosan. Demineralization of shrimp shells performed using 1 N HCL, the ratio (1:4), at a temperature of 70-75 C. Deproteinisasi performed using NaOH 3.5%, ratio (1:4) at a temperature of 80-85 C, the results of the deproteinisasi is chitin. Extraction of chitosan (deacetylation process) is done using NaOH 50%, ratio (1:20) at a temperature of 120-140 C. Demineralization, deproteinization, and deacetilation were conducted for 4 and 6 hours. One treatment was also conducted to produce ASC by applying directly deacetilation NaOH 50% at 140 C without demineralization and deproteinization. For the WSC stage, ASC producd was then mixed with DMAc (dimethyl acetate), stored (for aging), separated, washed, dried, and blended. The best treatment is demineralization process step, deproteinisasiand deacetylation for 4 hours, which ASC yield of 28.33% and WSC 15.46%. As for the process of direct deasetilisasi, produced the greates chitosan. The best characteristics of WSC was expressed in term of solubility (5 mg WSC/250 mL water), moisture content (10,0%), mineral or ash content (0.16%), nitrogen content (2.11%), viscosity (6 cps), and degree of deacetylation (64,75%).

(Heat Pump Drying (HPD) ; Mechanism, technical Analysis, Classification and Its Application) Rizal Alamsyah; Mirna Isyanti; Yuniarti -; Djajat Sudrajat; Vilka Fitriati
Warta Industri Hasil Pertanian Vol 22, No 02 (2005)
Publisher : Balai Besar Industri Agro

Heat pump drying (HPD) is one of innovative drying methods due to many advantages in drying for agricultural,food,and timber product.HPD is a drying can employ significant reduction of the energy consumption by energy recovery from condensation humudity.Comparing to orther drying methods such as fluidized,spouted, vaccum drying,HPD was leading in high water removal (kg H2O/kw/hour), wide operating drying temperature scale,wide operating humidity,better quality products,and low operational cost.So far HPD still has some limitation in its application such as the use of CFCs (Cloro fluoro carbon)as refrigerant that is not environmental friendlier,needs regular maintenance for all components of drying system including refrigerant charging, the possilibities for leak of refrigerant, and increase of operational cost.In drying food product,application of HPD was succesful especially in resulting uniform moisture contant,better tensile strength.Timber drying was also enhanced by HPD and the result show that the dried timber has better quality in terms of reduction brown tain in radiana pine,collapse,case hardening,and warpage.The latest tecnology of HPD was hybrid HPD covering fluidized bed HPD,infra red HPD, radio freqiency HPD, solar energy HPD,and multiple chambers of HPD.

(Production Technology Of Biodiesel From Jatropha Oil(Jatropha curcas L.) Rizal Alamsyah
Warta Industri Hasil Pertanian Vol 23, No 01 (2006)
Publisher : Balai Besar Industri Agro

It is so far the world haevily depends on the petroleum oils to fulfill energy consumption such or automotives,industry,generators,heating, agricultural machineries and other energy needs.It was predicted that the world oils reserves will be exhausted in the next 17 years because of its nonrenewable characteristic.Many alternative energy resources have been employed to overcome energy crisis by a lot of countries in the world including Indonesia.Many eeforts have been made to anticipate the scarcity of petroleum oil.Recently,Indonesia and many other countries has develop biodisel which and chemically defined as a methyl ester derived from renewable resources such jatropha oil,palm oil,used frying oil,and other resources.Biodisel sometime addresed to also as FAME (Fatty Acids Methyl Ester)or VOME (Vegetable Oil Methyl Ester) to reccal its chemical origin.Comparing with petroleum diesel the use of bio-diesel has some benefits such as clean burning,renewable,nontoxic and biodegradable fuel.Bio-diesel can be used alone or in blends with petroleum-derived diesel.Basically bio-diesel is made through trans-esterification process with methanol.In lands availabity and technology point of view of bio diesel can produced for both industrial and rural area scale.Petroleum diesel consumption in Indonesia at the time being in around 150.000 MB.Unit now the deficid is fulfilled by import.Currently more than 1 millionton of vegetable oil methyl ester are being produced and used in the world as alternative fuel for engines and for heating.

(The Effects of Drying on Rehidration Coefficient, Shear and Rendement of Mushroom) Rizal Alamsyah; Putiati Mahdar; Ishak Syah
Warta Industri Hasil Pertanian Vol 14, No 1-2 (1997)
Publisher : Balai Besar Industri Agro

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.

(The Study of Glucomannan Extraction from Iles-Iles (Amorphophaalus spp) and its Application on Food Product Enny Hawani Lubis; Endah Djubaedah; Rizal Alamsyah; Moch Noerdin NK
Warta Industri Hasil Pertanian Vol 21, No 02 (2004)
Publisher : Balai Besar Industri Agro

The study was aimed at investigating the method of glucomannan extraction from iles-iles and its use application as konyaku. The extraction can be done through mechanical and chemical process. iles-iles were canned and sliced into small chips with mm thickness. natrium sulfite of 1000 ppm was added during 15 minutes and continuted by soaking them with CaCO3 (2,5%, 5%, and 7,5). The chips was then sun dried for 25-30 hours and continued with oven drying on 60 C temperature and 16 hours. the chips were ground to produce iles-iles flour. Glucomannan flour was them separated from iles-iles flour by chemical separation process using sieve where the lighter one will pass through the sieve, while the mannan will remain on the sieve. A blower was also used to separate glucomannan from calcium oxalate and the remaining cll wallof iles-iles. The chemical separation of glucomannan flour from iles-iles was conducted by water extraction at 55 C. The ethanol of 95% was added to the extract to obtain mannan layer which then was oven dried.

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