Oil Recovery from Desiccated Coconut(DC) Process Water to Produce Value Added Coconut Oil

Simple item page
dc.contributor.authorJeewanthi, K.M.P.
dc.contributor.authorAsanka, J.R,K.
dc.contributor.authorGunathilaka, R.P.D.
dc.date.accessioned2021-12-03T04:07:51Z
dc.date.available2021-12-03T04:07:51Z
dc.date.issued2010
dc.description.abstractSri Lanka is the second largest producer of desiccated coconut (DC) in the world. A typical factory with a daily capacity of 50,000 coconuts discharges 40,000 to 60,000 liters of wastewater per day. The high fat content of the wet process water is the major environmental problem caused by the DC mills. A pilot scale system for recovery of high quality coconut oil from the DC process water was developed aiming at the reduction of the environmental problems, The oil recovery system consists of four main successive sections. The first one included collection of wet process water into a collection tank using PVC gutters & pipes. The second stage was separation of coconut milk (light cream) with 30% fat content and aqueous portion with 0.5% fat content using a gravity separation tank made out of stainless steel. The third section of the procedure was concentration of the light cream and produces a thick cream containing 50% oil and 30% moisture. In the last stage the thick cream was heated in a steam jacketed kettle using steam at 100 ± 2 °C under different time periods to break the emulsion. The results showed that heating duration of 2 1/2 hrs represented the most effective extraction conditions with an oil yield of 81 from 20 I of concentrated thick cream. Moisture content, color, saponification value and iodine value of the extracted oil were 0.12%, 0.7 (Y+5R), 262 and 10 respectively. The result of the gas chromatography analysis showed that the oil contains high lauric acid content (46.03%). Evaluation of shelf life for 2 1/2 months showed an increase in free fatty acids content from 0.2% to 0.28% and peroxide value from 0.9 to 2 (ml of 0.002 N sodium thiosulphate per one gram of oil). The results of sensory evaluation revealed that the extracted oil is acceptable for edible purposes. The technique for recovering oil from DC wet process water is a significant improvement in profitability over the traditional method. Key words: Desiccated coconut process water, Gravity separation, Centrifugation, coconut oilen_US
dc.identifier.isbn9789550481002
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/7844/62-2010-Oil%20Recovery%20from%20Desiccated%20Coconut%28DC%29%20Process%20Water%20to%20Produce%20Value%20Added%20Coconut%20Oil%20.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectAgricultureen_US
dc.subjectCrop Productionen_US
dc.subjectCrop Production Technologyen_US
dc.subjectFood Scienceen_US
dc.titleOil Recovery from Desiccated Coconut(DC) Process Water to Produce Value Added Coconut Oilen_US
dc.title.alternativeResearch Symposium 2010en_US
dc.typeOtheren_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
62-2010-Oil Recovery from Desiccated Coconut(DC) Process Water to Produce Value Added Coconut Oil .pdf
Size:
158.38 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Research Symposium-2010