An evolving database of valuable products recovered from biomass Skins

Turning skins from tomatoes, apples, and grapes into Antioxidant Power

Date: 12 Jan 2024
Industry: Nutraceuticals & Functional Foods
Plant Name:
Apple, Grapes, Tomato
Part of Plant:
Peels (Skins)
End Products
Bio-extracts
Lycopene, Polyphenols & Resveratrol
Application
  • Food Preservation: Acting as natural antioxidants to prevent lipid oxidation and spoilage in processed foods, replacing synthetic preservatives like BHT.
  • Health Supplements: Concentrated, highly bioavailable capsules for cardiovascular health, cellular repair, and anti-aging routines.
Description

Fruit skins and pomace make up the vast majority of solid waste from the global juice, sauce, and wine industries. However, these outer protective layers are biologically designed by the plant to contain the highest concentrations of defensive phytochemicals. This initiative focuses on the selective extraction of high-value compounds—such as Lycopene from tomatoes, Quercetin from apples, and Resveratrol from grape skins. By upcycling these skins, the project creates a lucrative secondary revenue stream for agricultural processors while providing the market with 100% natural, plant-derived health ingredients.

Pathway Description:

The fruit skins are immediately separated from the wet pomace and freeze-dried (lyophilized) to prevent the degradation of heat-sensitive antioxidant molecules. They are then milled into a fine powder and subjected to Supercritical Fluid Extraction (SFE) using CO2. This advanced green-chemistry technique operates at high pressure to dissolve and isolate specific phytochemicals without using toxic industrial solvents. The resulting pure extracts are then stabilized via microencapsulation to ensure they remain potent during long-term storage and human digestion.

Tags: Fruit Pomace Natural Antioxidants Phytochemical Extraction
Feedstock
Types of Feedstock
Juice & Winery Skin Byproducts
Pathways
Chemical / Physical
Supercritical CO2 Extraction
Stakeholders
Sector
Nutraceutical Labs & Beverage Manufacturers