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All Journal Warta IHP (Warta Industri Hasil Pertanian)
-, Hendarti
Balai Besar Industri Agro
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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(Study on bleaching and deodoration of squalene by the mixture of activated carbon and bentonite (1:8)). Achmad Moestafa, Achmad Moestafa; -, Hendarti; F.Hutajulu, Tiurlan; Sudirman, Ali
Warta Industri Hasil Pertanian Vol 12, No 1-2 (1995)
Publisher : Balai Besar Industri Agro

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Abstract

Squalene which was extracted from shark liver oil (Centrophorus atromarginatus) should be purified before it can be used as raw material in industry.Raw squlene has dark yellow in colour and has an unpleasant odour, while a commercial squlene is an odourless clear liquid.To meet the requirement an experiment had been carried out by treating the raw squlene by mean of an absorbent which consist of a mixture of activated carbon and bentonite in 1:8 ratio.An acceptable squalene was found when raw squalene was treated with 2.0% adsorbent at 105-110 degree C for 120 minutes.The product was an odourless liquid. 
(The production of articficial "salak" flavor using instrumental method approach). Timur Antara, Ngakan; -, Hendarti; Sapto Hartanto, Eddy
Warta Industri Hasil Pertanian Vol 10, No 1-2 (1993)
Publisher : Balai Besar Industri Agro

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Abstract

The study imitating "salak" (fruit of salacce edulis) has been done by instrumentation approach.Six components of "salak" flavor,which are probably the key-flavor of "salak" were identified.By compounding the identified components namely ethyl butyrate,isoamyl acetate,alyl caproate,amyl butyrate,linalool and geraniol with another chemical such as aldehyde C19,diphenyl oxide,peru balsam,lemon oil,lime oil,glyserine,ethanol 96%,propylene glycol and cananga oil originated from irian,the artificial "salak" flavor has been created successfully.From the sensory point of view all of panels detected the "salak" flavors of the product,and 6 out of 21 detected another flavor beside the "salak" flavor it self.
(Increasing the Eugenol Content of Clove Leaf Oil by Rectification) Sudibyo, Agus; Bastaman, Syarief; -, Hendarti
Warta Industri Hasil Pertanian Vol 4, No 01 (1987)
Publisher : Balai Besar Industri Agro

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A study on rectifications of clove leaf oil had been conducted in order to improve its quality and eugenol content. Retifications was done by distillation using low vacuum pressure (5 and 15 mm Hg) and resulted in two fractions of clove leaf oil (fraction I and II). Observation was emphasized on the eugenol content and its quality. The eugenol content of fraction I was increased by 5-8% and those of fraction II was 30-31%. As for the purity of eugenol content, it was decreased in fraction I, and increased in the other.
(Study on Extraction of Theobromine from Cacao seed) Junaidi, Lukman; Sudibyo, Agus; -, Hendarti
Warta Industri Hasil Pertanian Vol 24, No 01 (2007)
Publisher : Balai Besar Industri Agro

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Study on Extraction of Theobromine from Cacao seed has been conducted. The study is aimed at evaluating the extraction of theobromine effectiveness using Pavia Method and the modification of Pavia Method. The modification of Pavia Method was based on variation of MgO level and variation of organic solvent used. The variation of MgO level were 6 gr, 3 gr, and 0 gr, and the variation of organic solvent used were etanol, chloroform, and etyl acetate. The result of study showed that there was no significance influence of variation of MgO level on the weight and concentration of theobromine extracted. While the variation of organic solvent used showed significance influence to the weight and concentration of theobromine extracted. The best extraction result was obtained when using ethanol when using ethanol as an organic solvent.
(Increasing the Vetiverol Content of vetiver Oil by Rectification) Sudibyo, Agus; Bastaman, Syarief; -, Hendarti
Warta Industri Hasil Pertanian Vol 4, No 01 (1987)
Publisher : Balai Besar Industri Agro

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Abstract

A study on rectification of vetiver oil had been conducted in order to improve its quality and eugenol content. Retification was done by distillation using low vacuum pressure (15 and 20 mm Hg) and resulted in four fraction of vetiver oil (fraction I, II, III, IV). Observation which included chemical analysis (ester number, ester number after acetylation and vetiverol content) and physical analysis (refractive index at 20 degree) was done only on fraction III and IV. Research result showed that rectification improve the quality of vetiver oil. The vetiverol content of fraction III was increased by 8,10-9,35%, while those of fraction IV was 18,05-19,23%.
Co-Authors Achmad Moestafa, Achmad Moestafa Bastaman, Syarief F.Hutajulu, Tiurlan Junaidi, Lukman Sapto Hartanto, Eddy Sudibyo, Agus Sudirman, Ali Timur Antara, Ngakan