Effect of microwaves pretreatments on extraction yield and quality of mango seed kernel oil.
Kittiphoom S., Sutasinee S.
Author Affiliation: Faculty of Agro Industry, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat 80240, Thailand.
International Food Research Journal 22 : 960-964
Abstract : Effect of microwave radiation on mango seed was probed by employing it as a substrate pretreatment prior to oil extraction by soxhlet method. Samples were treated by microwave radiation at a frequency of 2,450 MHz by a household microwave oven. Eighteen microwave pretreatments were established, together combining three potencies (110, 330 and 550 W) and six times of pretreatment (0-150 s). Microwave pretreatment could be applied to mango seed kernel oil extraction prior to soxhlet extraction to decrease the extraction time was generally concluded. Pretreatment at 60 s and at 110 W potency was found as the most appropriate condition of microwave pretreatment since it decreased the extraction time from 150 min to up to 30 min. The major advantage of microwave pretreatment is the reduced time of extraction and energy consumption costs, when is compared to conventional methods. Analysis of oil quality indices (e.g. acid value, peroxide value, oil composition) extracted by microwave pretreatment and non-pretreatment indicated that oils from both processes have comparatively similar properties, thus it was justification of microwaves use as a rapid tool for oil extraction pretreatment.