Enriching polyphenols from receptaculum Nelumbinis extract using D 101 macroporous

Nguyen Thuy Vy Huynh1, Ngo Thai Vy Nguyen1, Hong Son Nguyen1, Thi Hong Hanh Nguyen2,
1 Sinh viên, Khoa Sư phạm Khoa học Tự nhiên, Trường Sư phạm, Trường Đại học Đồng Tháp, Việt Nam
2 Faculty of Natural Science Teacher Education, School of Education, Dong Thap University, Cao Lanh 870000, Vietnam

Main Article Content

Abstract

Receptaculum Nelumbinis, often discarded as a by-product after harvesting lotus seeds, actually contains a high concentration of polyphenols, bioactive compounds with significant medicinal value in traditional medicine. To enhance the polyphenol content in concentrated extracts from Receptaculum Nelumbinis, this study has identified the key factors influencing the adsorption and desorption processes using D 101 macroporous adsorption resin. D 101 resin proves to be the most effective material for polyphenol enrichment due to its excellent adsorption properties, cost-effectiveness, and high reusability after desorption, which significantly reduces production costs and minimizes environmental impact. A series of optimization experiments showed that the optimal conditions were a sample solution concentration of 10.000 ppm, 80 % ethanol as the solvent, an adsorption time of 30 minutes, and a desorption duration of 30 minutes using 96 % ethanol. Under these optimized conditions, the use of D 101 resin successfully increased the polyphenol content in the extract to 110,5 ± 0,71 mg GAE/g, demonstrating its efficacy in polyphenol enrichment. These findings pave the way for the application of Receptaculum Nelumbinis extract in pharmaceutical and functional food products, providing a sustainable approach to utilizing this often-discarded by-product and functional food products.

Article Details

References

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