Biodiesel is mostly produced from the edible sources such as sunflower [5], soybean [6], and rapeseed [7].
Biodiesel produced from the edible sources has the limitations of food security issues and hence not considered as a sustainable approach.
The n-6: n-3 ratio (lower than 10) recommended by the WHO can be achieved by consuming certain edible sources rich in n-3 and n-6 in daily food meal.
"Crime against humanity" term is raised when edible sources started to be used.
2, 5- 9 Among the aforementioned alternatives, the combination of oryzanol and phytosterols seems quite promising as these materials are derived from edible sources, totally free of saturated fatty acids, and have a cholesterol lowering effect.
The present work concluded the potential of wild melon seed oil as excellent non-edible source of bioenergy.
Synthesis of biodiesel from a non-edible source as Pistacia khinjuk seed oil via ultrasonic cavitation (UC) system is reported in this study.
Castor oil is one of the most promising non-edible sources for the production of biodiesel [9].
This study aims to synthesis biodiesel from two non-edible sources namely; Salvadora alii oil and Thespesia populneoides oil.
However, the current focus on ethanol production is the conversion from non-edible sources or wastes such as agricultural and forest residues into second generation ethanol.
