Bleaching of mustard oil with some alternative bleaching agents and acid activated clay.
An attempt was made to study the bleaching ability of some alternative adsorbents like rice husk ash (HC), acid activated rice husk ash (AC), rice husk silica (S), and Al(OH)(3) gel to replace commercial Acid Activated Clay (AAC, like Tonsil Earth: TE) for bleaching of mustard oil. Quantities of AAC used were varied from 0.5 to 2.0 % (w/w). It was used as such and along with commercial activated carbon (0.25-0.75 %, w/w), and laboratory prepared Al(OH)(3) gel, rice husk ash and silica isolated from husk. The results show that quantity of AAC to be used can be reduced to 1.00 to 1.25% (w/w) by using a combination of AAC along with rice husk ash; Al(OH)(3) gel; rice husk silica either by wet bleaching or by conventional bleaching method.
De
Bijay Krishna
BK
Department of Industrial Chemistry, Division of Oils, Fats & Waxes, Institute of Science & Technology for Advanced Studies & Research (ISTAR), Anand, Gujarat, India. bijay_de@yahoo.co.in
Patel
Jignesh Dahyabhai
JD
Patel
Jignesh Bharatbhai
JB
Patel
Vijay Kantilal
VK
Patel
Vinay Rajeshbhai
VR
D000327:Adsorption; D000536:Aluminum Hydroxide / Q000737:chemistry; D000538:Aluminum Silicates / Q000737:chemistry*; D002621:Chemistry / Q000379:methods; D000077215:Clay; D005227:Fatty Acids / Q000737:chemistry; D005504:Food Analysis / Q000379:methods; D005511:Food Handling; D005782:Gels; D006358:Hot Temperature; D009149:Mustard Plant / Q000737:chemistry*; D009821:Oils; D012275:Oryza; D010316:Particle Size; D010938:Plant Oils / Q000737:chemistry*; D013696:Temperature
D000538:Aluminum Silicates; D005227:Fatty Acids; D005782:Gels; D009821:Oils; D010938:Plant Oils; D000536:Aluminum Hydroxide; D000077215:Clay; C027793:mustard oil