Phytochemicals derived from soya bean husk exert hypoglycemic and anti-adipogenic properties in cell culture models
Abstract
Purpose
Literature has shown that phenolic acids and flavonoids are bearing with hypoglycemic and anti-adipogenic properties. Therefore, this study aims to evaluate the possibility of phenolic-rich soya bean husk powder extract (SHPE) in combating diabetes and obesity using in vitro models.
Design/methodology/approach
The hypoglycemic properties were evaluated by determining the ability of SHPE (25-100 µg/mL) in inhibiting a-amylase and a-glucosidase enzymes and in triggering insulin secretion in BRIN-BD11 cells. Murine 3T3-L1 adipocytes were used for evaluating the anti-adipogenic properties of SHPE through the determination of relative lipid accumulation, triglyceride content and glycerol-3-phosphate dehydrogenase (GPDH) activity.
Findings
The hypoglycemic properties of SHPE was in the dose-dependent manner, where 100 µg SHPE/mL exhibited a significant higher (p < 0.05) a-amylase inhibitory activity (56.8 ± 0.11 per cent) and insulin secretion activity (0.73 ± 0.02 µg/l) against other concentrations. In contrast to the aforementioned findings, a significant lower a-glucosidase inhibitory activity (52.0 ± 0.44 per cent) was also observed in 100 µg SHPE/mL. Nevertheless, findings revealed that all the SHPE were able to inhibit the activity of a-amylase and a-glucosidase and stimulated the insulin secretion in BRIN-BD11 cells. On the other hand, the anti-adipogenic properties of SHPE were in the reverse dose-dependent manner, where 100 µg SHPE/mL demonstrated a significant lower (p < 0.05) relative lipid accumulation (48.5 ± 0.03 per cent), intracellular triglyceride content (5.7 ± 0.07 mg/dL) and GPDH activity (1.0 ± 0.01 mU/mL). These findings reflected that 100 µg SHPE/mL was a potent anti-adipogenic agent when compared with other concentrations. In conclusion, soya husk could emerge as a potential hypoglycemic and anti-adipogenic agents in in vitro models.
Originality/value
This was the first study to explore the effectiveness of phytochemicals derived from soya bean husk in ameliorating hyperglycemia and adipogenesis. Promising findings that derived from the present study could enable the scientists to re-evaluate the potential use of agricultural wastes, especially in the formulation of nutraceuticals.
Keywords
Acknowledgements
The authors would like to acknowledge the Institute of Agro-food Science and Technology, Guangxi Academy of Agricultural Sciences, Nanning, China for their generosity in providing soya bean husk for this study. The authors also like to extend their thanks to laboratory staff from the Department of Nutrition and Dietetics at UPM for their guidance and assistance.
Citation
Tan, S.-T., Ismail, A., Hamid, M., Chong, P.-P., Sun, J. and Tan, S.-S. (2019), "Phytochemicals derived from soya bean husk exert hypoglycemic and anti-adipogenic properties in cell culture models", Nutrition & Food Science, Vol. 49 No. 6, pp. 1219-1231. https://doi.org/10.1108/NFS-12-2018-0351
Publisher
:Emerald Publishing Limited
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