ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Variety, age and soil type affect solid content of palm oil.

Musonge, P. and Baryeh, E. A.

Agriculture International Year: 1991 Vol: 43 Issue: 10 Pages: 294-296 Ref: 6 ref.

1991

บทคัดย่อ

Oil from palm fruit samples was extracted using a mechanically-operated hand press and the solid content (the weight of the solid fraction, assuming separation into 2 distinct phases) was assessed. Four studies were conducted, as follows: (1) samples were obtained from 4 bunches of dura, pisifera and tenera palms of the same age and grown on the same soil type; (2) 5 bunches were harvested from 5 tenera palms of the same age but grown on 3 soil types; (3) bunches (8 for each pair of adjacent plantings) were harvested from tenera palms of different ages (10-22 years) but grown on the same soil type; and (4) fruits from a single bunch (for 3 different bunches) were mixed and damaged in different ways in order to alter the free fatty acid (FFA) content. The results are presented in graphs and tables. The solid oil content was determined principally by variety and soil type; when these parameters were fixed the solid fraction increased with tree age. When variety, soil type and tree age were constant the oil composition was found to be influenced greatly by postharvest treatment of the fruits. Peeling and/or bruising increased the FFA content and this was followed by a rise in the solid content; for the 3 bunches investigated the solid fraction was maximum at FFA values of 4-8%.