Do not bin your durian seeds! Scientists from Singapore have discovered methods to make use of them — in your sweet, for instance.

NTU Singapore

Singaporeans have a deep affection for durians regardless of their notoriously foul stench. Now native researchers simply gave the island state cause to like the “king of fruits” much more.

Scientists at Singapore’s Nanyang Technological College have discovered a strategy to extract gum from durian seeds and switch it right into a meals stabiliser and — with additional processing — probiotic powder.

The group demonstrated the method — first washing the seeds, then slicing and boiling them earlier than including an answer to reap the gum — at a media briefing Thursday morning. Their findings have been printed within the journal Frontiers in Sustainable Meals Methods final September.

Meals stabilisers are an ingredient utilized in many meals gadgets — together with gummies, candy carbonated drinks and mayonnaise — to bind and make sure that “varied substances that don’t combine effectively can gel harmoniously,” in accordance with Professor William Chen, director of the varsity’s meals science and expertise programme.

These are sometimes harvested from Africa-imported acacia bushes, however with local weather change affecting seasonal harvests, various and extra sustainable sources should be explored, Chen added.


This is not jam. It is an ingredient firms can use to bind different substances in your gummy bears and mayonnaise, amongst different meals gadgets.

NTU Singapore

Singaporeans devoured six million durians throughout the first six months of final 12 months. Their seeds, that are about three to 4 centimeters huge and make up 20 to 25 p.c of the complete fruit, are sometimes binned together with their thorny shells. Estimating that 3,600 tonnes of seeds are thrown away yearly, Chen mentioned he noticed a chance to show them right into a “plant-based, all-natural” meals stabiliser that can be vegetarian-friendly.

This is not the primary try at giving meals by-products a brand new lease on life. Researchers from the Nationwide College of Singapore created an alcoholic beverage out of tofu whey, a liquid waste created when making beancurd. Earlier, Chen himself additionally discovered a strategy to flip what might in any other case have turn out to be a brewer’s waste into “worthwhile liquid nutrient” that can be utilized to develop beer yeast.

What Singaporeans know and love because the “king of fruits” are shunned by many, although, for its distinctive scent and style that may be a reminder of fitness center socks and even sewage. However the harvested gum bore neither scent nor style after extraction (sure, I sniffed it and put some in my mouth).

Durian seed gum additionally accommodates components that allow it to turn out to be a nutrient assist for probiotics, an excellent micro organism that assist folks preserve a wholesome digestive system. By fermenting the gum with added micro organism cultures then spray drying to get rid of moisture, Chen and his group was capable of make a light-weight pink-coloured probiotic powder.

Throughout trials, the researchers found probiotic exercise in business stabilisers have been considerably diminished after 5 weeks, whereas that in durian seed stabilisers remained regular for 2 months. This means durian seed gum is 20 p.c more practical at enhancing the lifespan of powder-based probiotics, therefore extending shelf life to so long as 120 days.

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