Helping probiotics to help you
The positive health effects of probiotics are why Associate Professor Liu Shao Quan, who is part of the National University of Singapore’s (NUS) Food Science and Technology Programme, has dedicated part of his research to developing new probiotic foods and drinks that could appeal to more people and expand the options for a healthier diet. Over the past few years, he and his students have created probiotic beer – a first in the market – and two other probiotic beverages made with durian pulp and okara respectively. Okara is soy pulp that is leftover from the production of soy products such as soy milk and tofu. The probiotics problem At this year’s Vitafoods Asia 2018 conference, which will take place on Sept 11 and 12 at Singapore’s Marina Bay Sands Expo and Convention Centre, Prof Liu will speak about the difficulties of keeping probiotics alive in foods and drinks, and his research to improve their survival chances. Prof Liu’s talk is titled “Improving the Viability of Probiotics in Food”. He explained: “Many foods and beverages are acidic, and acids inhibit probiotics’ survival and activity. Besides, when foods and beverages are stored at elevated temperatures, probiotics can grow and produce more acids. This will lead to the probiotics’ death and decrease the health benefits of the foods and beverages.” He noted that some microorganisms can help to protect probiotics and improve their odds of survival, but the mechanisms of the process are not well-understood. He and his students experimented with different probiotic strains, yeasts and cultures in creating their beverages. “Beers contain hop acids that prevent the growth and survival of probiotics, but we successfully developed a beer with live probiotics. Our probiotic durian beverage and probiotic okara beverage also have high cell counts of live probiotics,” he said. Breakthroughs in […]