Sept 20 – Scientists at Nanyang Technological College (NTU) in Singapore are tackling meals waste by turning discarded durian husks into antibacterial gel bandages.
The method extracts cellulose powder from the fruit’s husks after they’re sliced and freeze-dried, then mixes it with glycerol. This combination turns into tender hydrogel, which is then reduce into bandage strips.
“In Singapore, we eat about 12 million durians a yr, so apart from the flesh, we are able to’t do a lot concerning the husk and the seeds and this trigger environmental air pollution,” mentioned Professor William Chen, director of the meals science and expertise program at NTU. The fruit’s husks, which make up greater than half of the composition of durians, are often discarded and incinerated, contributing to environmental waste.
Chen added that the expertise also can flip different meals waste, equivalent to soy beans and spent grains, into hydrogel, serving to restrict the nation’s meals waste.
In comparison with typical bandages, the organo-hydrogel bandages are additionally in a position to maintain wound areas cooler and moist, which might help speed up therapeutic.
The researchers say utilizing waste supplies and yeast for the antimicrobial bandages is cheaper than the manufacturing of typical bandages, whose antimicrobial properties come from costlier metallic compounds like silver or copper ions.
A durian wholeseller, Tan Eng Chuan, mentioned he goes by way of no less than 30 crates of durians a day throughout durian season – as a lot as 1,800 kg. Having the ability to use the components of the fruit which are ordinarily discarded, he mentioned, was an innovation that may make having fun with it “extra sustainable”.