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Teti Estiasih
Program Studi Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Universitas Brawijaya, Malang
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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Journal : Jurnal Teknologi Dan Industri Pangan

 1 
EFEK HIPOGLIKEMIK POLISAKARIDA LARUT AIR GEMBILI (Dioscorea esculenta) YANG DIEKSTRAK DENGAN BERBAGAI METODE [Hypoglycaemic Effect of Water Soluble Polysaccharides Extracted from Gembili (Dioscorea esculenta) by Various Methods] . Harijono; Teti Estiasih; Wenny Bekti Sunarharum; I Komang Suwita
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 1 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.585 KB)

Abstract

The hypoglycaemic effect of water soluble polysaccharide (WSP) extracted from gembili tuber was studied in this experiment. Extracts from three different methods, an aqueous (water-WSP), papain assisted (papain-WSP), and tempeh inoculum assisted (tempeh-WSP) extractions, were compared. The effects were evaluated by means in vivo test on hyperglycaemic-induced rats by performing the so called blood glucose response, followed by in situ glucose absorption test and short chain fatty acids (SCFA) analysis. A nested experimental design was employed in the experiment. All the three extracts reduced the blood glucose level. The effect of tempeh-WSP extract was comparable to that of the papain-WSP extract, but was not signicantly different from the water-WSP. However, the water-WSP extract tended to have a weaker effect than that of the other extracts. Similar result was found on the SCFA level. The highest SCFA level was found on the rats treated with tempeh-WSP extracts. It was likely that the hypoglycaemic effect of the tempeh-WSP extract was the best.
MIKROEMULSIFIKASI FRAKSI TIDAK TERSABUNKAN DISTILAT ASAM LEMAK MINYAK SAWIT Teti Estiasih; Kgs. Ahmadi; Layly Alifatur Rizqiyah
Jurnal Teknologi dan Industri Pangan Vol. 26 No. 2 (2015): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.999 KB) | DOI: 10.6066/jtip.2015.26.2.189

Abstract

Palm fatty acid distillate (PFAD) is a by-product of palm oil refining that contains valuable bioactive compounds such as phytosterols, tocopherol, tocotrienols, and squalene which acummulates in unsa-ponifiable fraction (USF). In the form of emulsion, USF will be convenient and easy to use as food supplements or fortificants. Microemulsion is a type of emulsion that has stable droplet sizes less than 10 mm. Hence, the best emulsifier for USF microemulsion is important to be determined. The USF micro-emulsion was prepared by homogenizing the sample mixtures at 12.000 rpm for 20 min at USF concentration of 10% (w/v) with lecithin and tween 80 as emulsifiers at concentration of 0.5,1.0, and 1.5% (w/v). The microemulsions were analyzed for their viscosity, stability, and particle size distributions, as well as microstructures. The results showed that characteristics of microemulsion were affected by emulsifier types and concentrations. Tween 80 produced better microemulsion than lecithin indicated by more stable emulsions, smaller droplet sizes, and narrower ranges of droplet size distributions. The increasing lectihin concentrations resulted in a narrower droplet size distribution but the average droplet size was not always smaller. Conversely, the increasing tween 80 concentrations increased average droplet sizes and ranges of particle size distributions. The most suitable emulsifier for USF microemulsion was tween 80 at concen-tration of 0.5%. This microemulsion contained bioactive compounds derived from USF, namely vitamin E (mainly tocotrienols), phytosterols, and squalene.
Co-Authors . Harijono I Komang Suwita Kgs. Ahmadi Layly Alifatur Rizqiyah Wenny Bekti Sunarharum