Scientists develop sustainable chocolate from waste plant matter

A team of scientists have reinvented the chocolate recipe, swapping a part of the refined sugar for a part of the cocoa fruit that is usually thrown away.

Experts believe that the novel chocolate-making method discovered by scientists from ETH Zürich in Switzerland could lead to more sustainable and healthier chocolate.

As reported in Nature Food, scientists have made a sweet and fibrous gel that could replace the sugar in chocolate, by mashing up the pulp and husk of a cocoa pod instead of just using the beans.

Kim Mishra, a food technologist at ETH Zürich and lead author of the study, said: “The cocoa fruit is basically a pumpkin and right now we’re just using the seeds. But there’s a lot of other marvellous stuff in that fruit.”

The researchers found that the resulting chocolate contained more grams of fibre than conventional 100-gram blocks.


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It also provided the equivalent sweetness without the same load of sugar, researchers said.

The research discovered that the product that was 20% ‘whole fruit gel’ was as sweet as chocolate that was traditionally made from around 5 to 10% powdered sugar.

The research also found that the method used 6% less land and water but, increased planet-heating emissions by 12%.

According to the Guardian, Alejandro Marangoni, from the Department of food science at the University of Guelph in Canada, said the study was a “fairly comprehensive” proposal that now needs to be validated with a pilot.

Earlier this year, Waitrose became the first UK retailer to join an initiative to help chocolate brands or companies which sell cocoa products have more sustainable supply chains.

Climate crisisFood and farmingNature and the environmentNet zeroNews

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