A preparation of β-glucans and anthocyanins (LoGiCarb™) lowers the in vitro digestibility and in vivo glycemic index of white rice

• Published in: RSC advances Vol. 10; no. 9; pp. 5129 - 5133
• Main Authors: Lin Lee, Jaslyn Jie, Chan, Barnabas, Chun, Cui, Bhaskaran, Kalpana, Chen, Wei Ning
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 31.01.2020; The Royal Society of Chemistry
• Subjects: Anthocyanins; Chemistry; Dextrin; Digestion; Glucan; Glycemic index; In vivo methods and tests
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/c9ra08147j

The effect of a proprietary blend of β-glucan, anthocyanins and resistant dextrin (LoGICarb™) on the (1) digestibility and (2) glycemic response of humans to white rice, were carried out. The amounts of glucose released, rapidly digestible starch, and predicted glycemic index of white rice were significantly reduced, with addition of LoGICarb™. The mean glycemic index (GI) value of white rice, were also reduced from 72 to 55.0 ± 4.52, in 14 test subjects. These effects were due to the combination of anthocyanins and β-glucans in one sachet of LoGICarb™. The anthocyanins could bind α-amylase, reducing the amount of available enzymes for starch digestion, thus slowing down starch digestion in white rice. In addition, β-glucans helped increase the viscosity of meal bolus. This is the first study that demonstrated addition of plant-based extracts could significantly decrease the digestibility and GI value of cooked white rice.