Abstract
A novel process has been developed for the recovery of phytochemicals such as, ? -HCA from kokum (Garcinia indica choisy) rinds using hot water pressurized with carbon dioxide, followed by its purification. The performance of the pressurized hot water extraction (PHWE) process has been evaluated to ascertain the optimum process parameters for maximizing the recovery of ? -HCA. A systematic parametric study has been undertaken by varying the important parameters in the ranges of 30-120 °C for temperature, 1-20 atm for pressure, 30-60 min of extraction time, 4 - 22 ml/g of water to feed ratio, 1-3 number of stages , 0-350 rpm of stirring, presence of salt, nature of feed, and grinding. Ethanol is added to the aqueous extract from kokum rinds for the removal of pectinous materials by precipitation. Quantification of ? -HCA in the product has been carried out by the titration method with 0.1N NaOH solution. The maximum recovery is obtained when PHWE is carried out at 90 °C above which the recovery decreases. Pressure does not have much effect on the recovery of ? -HCA beyond a certain pressure required to maintain the extractant in the liquid phase. More ?-HCA is recovered by 2-stage PHWE from ground dry kokum than from salty kokum rinds.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
