
Westfalia Fruit’s sustainable dye extraction on display at Fruit Logistica 2025. (Image source: Westfalia Fruit)
Global leader in the avocado industry, Westfalia Fruit has partnered with Efficiency Technologies to develop the most recent development—an innovative technology that specialises in the extraction of a natural, sustainable dye from avocado stones
This marks a significant advancement in total crop utilisation. The process extracts perseorangin, a rare and sought-after natural pigment from avocado stones collected at Westfalia's UK facility. The pigment offers eight distinct shades ranging from light yellow to rich reddish-brown, creating new opportunities for sustainable colouring solutions across multiple industries. The specialised extraction method isolates perseorangin, which constitutes approximately 3% of the avocado stone, and processes it into a dried powder form, offering extended shelf life.
Besides the dye extraction, remaining materials from the avocado skins and stones are also processed into additional valuable products. For example, starches are directed to paper manufacture as a precursor to packaging production, while ground materials find applications in cosmetics as natural exfoliants, as alternatives to micro-plastics.
The natural dye extraction process represents a significant advancement in sustainable practices, particularly as industries increasingly seek alternatives to synthetic dyes. The powder format ensures stability and ease of use across various applications, while the range of the eight distinct natural shades offers versatility for different product requirements. This innovation comes at a time when consumer demand for natural, sustainable products continues to rise across fashion, beauty and packaging sectors.
The commercial potential and versatility of the natural dye have already been demonstrated through several high-profile applications. The company's integrated operations ensure efficient collection and processing of avocado stones and skins from multiple production sites, which will help to maximise the sustainable impact of the initiative and builds upon Westfalia's commitment to sustainability and circular economy principles.