Abstract
Peanut hull ashes prepared by calcinating ground peanut hull were evaluated as adsorbent for bleaching the water-degummed and alkali-refined soy oil. Their performances in adsorbing peroxides, phospholipids, pigments, β-carotene and free fatty acids in soy oil were compared with those of peanut hull, rice hull ash, activated clay and regenerated clay. Experimental results indicated that the influence of calcination time on the removal efficiency was not clear. Temperature of 500 or 700 °C showed potential as a best calcination temperature for preparing effective adsorbent. On the basis of adsorbing peroxides, phospholipids, pigments, β-carotene and free fatty acids, activated clay and regenerated clay were found to be superior adsorbents except in adsorbing free fatty acids; peanut hull ashes, effective adsorbents; while peanut hull, non-effective one. Further activation on peanut hull ashes is suggested to obtain a better performance while regenerated clay was found to be a good substituent for activated clay.
Sign-in/Register to access full text options 
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 callMore From: Journal of the Chinese Institute of Chemical Engineers
Disclaimer: 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.
