Possibility of Using Golden Shower (<i>Cassia Fistula</i>) and Poinciana (<i>Delonix regia</i>) Seeds Oil as Non-Conventional Feedstocks for the Production of Biodiesel in Egypt

Abstract

The tree pods and seeds of Cassia fistula (CF) and Delonix regia (DR) were collected from the Faculty of Agriculture garden at Al-Azhar University in Cairo, Egypt, during the spring season of 2019. The physical and chemical aspects of pods and seeds were examined. The percentage of oil and fatty acid compositions were then investigated. The pod weights ranged from 61.34 g in DR to 89.29 g in CF, with pod lengths ranged from 42.26 cm (DR) to 62.64 cm (CF). In Cassia fistula, the seed weight per pod, the number of seeds per pod, and the weight of 100 seeds per pod were 12.29 g, 84, and 17.22 g, respectively; whereas in Delonix regia, they were 11.31 g, 23.5, and 34.25 g. The C. fistula had high levels of chlorophyll a and b, as well as total chlorophyll (1.016, 1.025, and 2.041 mg g -1 DW), while D. regia recorded the lowest levels (0.513, 0.228, 0.741 mg g -1 DW). The results also showed that the C. fistula leaves were also heavier than the D. regia leaves, weighing 14.96 g and 5.02 g fresh and dry weight for C. fistula and 10.06 g and 3.87 g fresh and dry weight for D. regia, respectively. The seeds of both plants were chemically tested,

Esterified Papaya Oil and Flamboyant Oil as a Fuel on Single Cylinder Diesel Engine

“…As the free fatty acid content of papaya oil is 1.6, therefore no pre-treatment or acid esterification is required [21]. In flamboyant oil, the composition of fatty acid is found less than 2% [22]. The free fatty acid content of the flamboyant oil is 1.9.…”