Effects of processing parameters of Roselle seed on its oil yield

作     者：A.Isaac Bamgboye Oyebola I.Adejumo 

作者机构：Department of Agricultural and Environmental EngineeringUniversity of IbadanIbadanNigeria Department of Agricultural EngineeringThe Federal PolytechnicP.M.B.55BidaNigeria 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2011年第4卷第1期

页      面：82-86页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Roselle seed moisture level temperature pressure hydraulic oil extractor 

摘      要：The effect of the processing parameters of Roselle seed on its oil yield was *** seeds were ground and classified into two particle sizes(fine and coarse)using ASAE Standard *** samples were conditioned by adding calculated amount of distilled water to different moisture levels from the initial moisture levels of 4.4%and 5.14%respectively,(fine,4.4%,6.4%,8.4%and 10.4%and coarse samples 5.14%,7.14%,9.14%and 11.14%w.b.).The samples were heated at different temperatures of 80,90,100 and 110℃over a period of 15,20,25 and 30 min,expressed at 15,22.5,30 and 37.5 MPa using hydraulic oil extractor for 10,20,30 and 40 *** yield increases by 5%-6%with an increase in the processing parameters of pressure up to 30 MPa,temperature of 100℃and decreased beyond these *** yield increased by 7%-8%with an increase in moisture *** ground samples were found to have higher yield than coarsely ground samples at the different processing *** parameters were found to affect the yield of oil from Roselle seeds.