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http://repository.ipb.ac.id/handle/123456789/53060
Title: | Pemurnian Glukomanan secara Enzimatis dari Tepung Iles-iles |
Authors: | Mangunwidjaja,Djumali Sunarti, Titi Candra Muti, Reiza |
Keywords: | konjac flour glucomannan purification enzymatic hydrolysis Bogor Agricultural University (IPB) |
Issue Date: | 2011 |
Abstract: | Glucomannan is typical polysaccharide derived from konjac tuber. Conventional fractionation of glucomannan in konjac flour is by mechanical separation method, but it produces low purity glucomannan flour and needs further purification methods. This research is explored the glucomannan purification by enzymatic hydrolysis directly from konjac flour. Since konjac flour mainly consisted of starch, glucomannan and fiber, in this research sole thermophilic α-amylase enzyme and consortium of enzymes (amylase, xylanase and cellulose) were applied on 50 and 65 oC of incubation temperature for 2 hours. The results showed that consortium of enzymes can not be used for glucomannan purification; because glucomannan component is hydrolyzed by xylanase and cellulose. Glucomannan flour produced from sole α-amylase with incubation temperature of 50ᵒC has the highest yield (42.7%) compared to incubation temperature of 65ᵒC (31.6%). Duration of incubation also influenced to the glucomannan yield, and two hours of incubation time gave the best glucomannan flour with highest yield (37.0%), purity (46.1%), viscosity (42.3 cPs) and good whiteness (12.7%). Enzymatic hydrolysis of konjac flour also produced starch syrup (DE 55.6 – 77.9) as by- products. |
URI: | http://repository.ipb.ac.id/handle/123456789/53060 |
Appears in Collections: | UT - Agroindustrial Technology |
Files in This Item:
File | Description | Size | Format | |
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Abstract.pdf Restricted Access | Abstract | 400.31 kB | Adobe PDF | View/Open |
BAB I Pendahuluan.pdf Restricted Access | Bab I | 440.25 kB | Adobe PDF | View/Open |
BAB II Tinjauan Pustaka.pdf Restricted Access | Bab II | 558.73 kB | Adobe PDF | View/Open |
BAB III Metode Penelitian.pdf Restricted Access | Bab III | 531.66 kB | Adobe PDF | View/Open |
BAB IV Hasil Penelitian.pdf Restricted Access | Bab IV | 639.89 kB | Adobe PDF | View/Open |
BAB V Kesimpulan dan Saran.pdf Restricted Access | Bab V | 446.15 kB | Adobe PDF | View/Open |
Cover.pdf Restricted Access | Cover | 288.54 kB | Adobe PDF | View/Open |
Daftar Pustaka.pdf Restricted Access | Daftar Pustaka | 488.14 kB | Adobe PDF | View/Open |
F11rmu.pdf Restricted Access | Full text | 1.06 MB | Adobe PDF | View/Open |
Lampiran.pdf Restricted Access | Lampiran | 690.62 kB | Adobe PDF | View/Open |
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