Selection of optimal conditions of inulin extraction from Jerusalem artichoke (Helianthus Tuberosus L.)‎ tubers by using ultrasonic water bath

Abstract EN

Ultrasonic extraction is an inexpensive, simple and efficient alternative to conventional extraction techniques, as compared with other novel extraction techniques such as microwave-assisted extraction & supercritical fluid extraction techniques, the ultrasound apparatus is cheaper and its operation is easier.

Ultrasound assisted extraction has risen rapidly in the latest decade, and for most applications it has proven to be effective compared to traditional extraction techniques.

In this paper, a method of ultrasonic-assisted extraction was used to extract Inulin from tubers of Jerusalem artichoke, which have been reported to have several medicinal properties and uses.

Inulin is a storage carbohydrate found in many plants especially in chicory root, Jerusalem artichoke and dahlia tuber.

In this study, the effect of time, temperature, pH and solid to liquid ratio on Inulin extraction from Jerusalem artichoke tubers by using ultrasonic water bath.

The highest yield of Inulin were investigated from Jerusalem artichoke tuber was (99.47 %) at temperature of 70 °C, pH = 7, 60 min and ratio of solid to solvent was (10 gm / 100 ml).

Then, The UV detector by colorimetric method with vanillin–sulfuric acid was used for the quantification of Inulin.