Republic Polytechnic researchers turn soya pulp meant for landfills to a crop booster

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Republic Polytechnic researchers turn soya pulp meant for landfills to a crop booster
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SINGAPORE - About 30 tonnes of soya pulp are produced in Singapore every day. That’s equivalent to the weight of about five large elephants.

Dr Gu Keyu, lecturer; Ms Tan Kaye Teng, research assistant; and Dr Heng Kiang Soon, lecturer at Republic Polytechnic's School of Applied Science.

Biostimulants are like immunity supplements for plants. Unlike fertilisers, which directly provide the plant with nutrients, biostimulants increase the plants’ resistance to disease and climate stress, making them more resilient. Dr Heng and his team got to work developing a technology to break down the insoluble fibre, unlocking its nutritious properties. After months of experimenting with different enzymes, microbes and fermenters, they ended up with a good method to make the insoluble fibre soluble.

Raw okara needs to be solubilised in order to be fit for human consumption. From there, solubilised okara is purified and extracted to form OBC. PHOTO: REPUBLIC POLYTECHNIC In testing, the OBC shortened the growth cycle of leafy greens from 30 days to 25, generating more rounds of cultivation. Strawberries, which are often plagued by a fungal disease known as powdery mildew, saw a reduction of this disease.

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