Taguchi Optimization on the Biooil Extraction from Fresh Water Algae (Spirogyra) Using Soxhlet Apparatus

Table 1

Comparison between cold pressing method and solvent extraction techniques.

Parameters	Cold pressing [24–27]	Solvent extraction [10, 28–32]
Oil yield	It can reach up to 75% by weight	It can reach up to 95% by weight
Chemical used	No chemicals	Chemicals used like hexane, methanol, and chloroform
Ecofriendly	Yes	No
Cost of production	Cheaper	Expensive
Scaling up of the process	Difficult and expensive	Easy and less expensive
Breaking down of lipid content	It cannot break down complex hydrocarbon bonds and protein membranes	It can easily break down the complex nature of the algae
Wastage	More	Less
Quality	Highly pure and contamination free	Moderate purity