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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology Jurnal Teknologi Pertanian
D Mangunwidjaja
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Agriculture, Biological Sciences & Forestry Computer Science & IT

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 1 
Effect of Extrusion Cooking Temperature and Mixtures of Sweetpotato (Ipomoea batatas L) and Bogor Bean (Voandzeia subterranea L THOUARS on Some Properties of Extrudates Hidayah, Titik Nur; Mangunwidjaja, D; Sunarti, T. C.; Sutrisno, Sutrisno
Jurnal Teknologi Pertanian Vol 6, No 2 (2005)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The experiment aimed to evaluate the physical properties of extrudates made up of a mixture of Bogor bean and sweetpotato was conducted in two stages. The first experiment was run to determine the best blanching time for the bean and the second one is to evaluate the effect of various levels of die temperature and mixtures of Bogor bean and sweetpotato on some physical properties of extrudates. The process for the second experiment were conducted on three levels of die temperature i.e 100°C, 140°C, and 180°C on three level of mixtures of sweetpotato/Bogor bean: 90/10, 75/25, and 60/40, respectively. The results of the first experiment indicated that a blanching treatment for 15 minutes to the bean produced a better physical quality parameter than the use of unblanched and 5 min-blanched bean as raw material. It was found that the texture (degree of crispiness), degree of expansion, viscosity and spesific gravity of the extrudates were significantly affected by the above-mentioned factors. The best physical properties were observed on the extrudate made up of a mixture of 90% sweetpotato and 10% Bogor bean at a die temperature of 100°C.   Key words: Extrusion, sweetpotato, kacang Bogor, physical properties
Perubahan Komposisi Kimia Kulit Buah Kakao Akibat Penambahan Mangan dan Kalsium dalam Biokonversi dengan Kapang Phanerochaete chrysosporium Suparjo Suparjo; K G Wiryawan; E B Laconi; D Mangunwidjaja
Media Peternakan Vol. 32 No. 3 (2009): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Bioconversion is a method to increase quality of high lignocellulose-containing feedstuffs. Fermentation occurs during bioconversion is influenced primarily by length of fermentation and mineral supplementation to the medium. This study was aimed at determining the effect of these two factors on dry matter (DM), organic matter (OM), neutral detergent fiber (NDF) and acid detergent fiber (ADF), and cellulose-to-lignin ratio of cocoa pod incubated with Phanerochaete chrysosporium. Twenty four treatments containing of 4 mineral supplementations (no mineral, Ca, Mn, and Ca+Mn) and 6 different lengths of fermentation (0, 5, 10, 15, 20, and 25 days) were designed randomly to 72 fermentation glass jars in a 4x6 factorial arrangement. Length of fermentation had significant effect on all parameters measured. Mineral significantly affected changes of DM and OM, NDF and ADF content, and cellulose-to-lignin ratio, but not DM and OM content. In conclusion, supplementation of Ca to cocoa pod incubated with P. chrysosporium for 15 days contributed positively (P < 0.05) to changes of OM (13.83%) and DM (11.30%). The cellulose-to-lignin ratio of 1.34 was the optimum result of Mn supplementation for 10 days incubation. Key words: Phanerochaete chrysosporium, cocoa pod, fermentation, mineral supplemention, fiber
Performa Kambing yang Diberi Kulit Buah Kakao Terfermentasi Suparjo Suparjo; K G Wiryawan; E B Laconi; D Mangunwidjaja
Media Peternakan Vol. 34 No. 1 (2011): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.846 KB) | DOI: 10.5398/medpet.2011.34.1.35

Abstract

Utilization of cocoa pod husk (CPH) as feedstuff needs pretreatment to increase its nutrients availability. Bioconversion with Phanerochaete chrysosporium changes its structure by breaking down the linkage between lignin and structural carbohydrates. This experiment was aimed to evaluate the quality of fermented CPH biomass as feed for goats. The experimental treatments i.e.:  A= 30% of fresh napier grass (RG) + 50% of dried RG + 20% of concentrate; B= 30% of fresh RG + 30% of dried RG + 40% of concentrate; C= 30% of fresh RG + 30% of CPH + 40% of concentrate; D= 30% of fresh RG + 30% of fermented CPH + 40% of concentrate and E= 30% of fresh RG + 50%  of fermented CPH + 20% of concentrate. The treatments were allocated in a randomized block design with three replications.  Feed intake, body weight gain and ration efficiency were measured. The use of fermented CPH at the level of 30% had higher (P < 0.05) feed intake (560.33 g day-1), body weight gain (101.79 g head-1 day-1), and feed conversion (5.50) compared to other treatments. In conclusion that the use of 30% fermented CPH in the ration showed the best body weight gain and feed efficiency.
Co-Authors A.A. Ketut Agung Cahyawan W E B Laconi K G Wiryawan Suparjo Suparjo T. C. Sunarti Titik Nur Hidayah