Sustainability is the Way!
The Supercritical region is a physicochemical condition, of any fluid, where its gas properties resemble that of a liquid. Properties like density and/or solubility are advantageous considering extraction thermodynamics. Furthermore, Carbon dioxide is a major physical driver of climate change . Instead of condemning the carbon dioxide as a climate changer we could use it as a supercritical non-polar , benign, non-toxic solvent for the benefit of human kind.
In 2020, 32,725 tons of waste per year were piled up and thrown away at Central de Abastos market in Mexico City ; 45 % were fruits & vegetables.
In 2019, around 3.6 million tons per annum of food surplus & wastes like oranges, grapefruit and lemons (Citrus) were produced in the UK between households and farmers-markets.
Toxic solvents such as hexane or heptane were used in orange peels and grapefruit peels to produce extracts like d-limonene for applications in nutraceuticals, juices & pharmaceuticals.
Amaranthus Biorefinery has created its own propietary technology to make-up supercritical carbon dioxide and use it as a sustainable, non-toxic solvent to yield terpenes such as d-limonen from orange, grapefruit, lemon and bergamot citrus peel waste.