World first waste upcycling tech to reduce dependence on imported foods
A world-first Kiwi-developed food technology that upcycles horticultural waste into high-value products is set to reduce NZ’s dependence on imported food ingredients, cut greenhouse gas emissions, increase grower returns and boost regional employment. The waste valorisation system, developed by sustainability venture Powered by Plants (PbP) with support from Government-backed New Zealand Food Innovation Network (NZFIN), diverts thousands of tonnes of perishable horticultural produce from landfill and processes it into shelf-stable, high-value powders, concentrates and extracts for use in the food, nutraceutical and supplement sectors. The model, which can be scaled internationally, also produces bioenergy, fertiliser and even high-protein insect meal from previously unrecoverable waste. Dr Andrew Prest, director of Powered by Plants, says the concept was born out of frustration with the current food production model, where around a fifth of harvested produce is routinely discarded before it ever leaves the farm gate or is sold at unsustainable prices. He says with New Zealand’s $7 billion export horticulture sector producing over 6.2 million tonnes of fruit and vegetables each year, the opportunity to address the environmental and economic cost of waste is significant. Prest says the onion industry alone produces around 110,000 tonnes annually and has export earnings of approximately $170 million. However, up to 20% of this is sent to landfill, costing growers around $15 million each year, a loss compounded by the missed opportunity to upcycle this waste into high-value food ingredients or bio-products. He says the zero waste technology can produce powders and concentrates from almost any fruit and vegetable surplus and processed off-cut waste, including carrots, mushrooms, capsicum and blueberries, and can be adapted to other horticultural crops like kiwifruit and stone fruit. “Growers are stuck in an unsustainable commodity cycle where they’re selling most of their crop fresh and dumping the rest, either to landfill […]