EFEK SONIKASI WATERBATH DAN PENGGILINGAN BASAH GLUKOMANNAN TERHADAP KARAKTERISTIK MINUMAN SERBUK TINGGI SERAT
Yusuf Kamil Pradiatma, Rachma Wikandari, S.T.P., M. Biotech., Ph.D.; Dr. Arima Diah Setiowati, S.T.P., M. Sc.
2023 | Skripsi | TEKNOLOGI PANGAN & HASIL PERTANIAN
Glucomannan is a natural polysaccharide that can be obtained from porang tubers (Amorphophallus onocophyllus) that shows various health benefits, so it has the potential to be applied as a functional food. The high molecular weight of glucomannan causes glucomannan to dissolve in water, but takes a long time. This becomes a problem in the manufacture of fiber drinks so that it is necessary to modify the glucomannan molecule. In this study, wet milling with water-ethanol and sonication with a water bath were used to modify the glucomannan molecule. This research was conducted to determine the effect of wet milling and sonication on the characteristics of high-fiber powder drinks.
The modified glucomannan was then mixed with other ingredients, then analyzed to determine the effect of the treatment on the characteristics of high-fiber drinks. Wet grinding and sonication did not make a significant difference in solubility, but could affect the peaks of the acetyl and hydroxyl groups. Wet milling increases the viscosity and WHC, while sonication decreases the viscosity and increases the WHC.
Kata Kunci : Glukomannan, sonikasi, penggilingan basah, minuman serat