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Tan G, Duan Z, Xia G, Xin T, Yang L, Liu F, Xie H. Ultrasonic-Assisted Extraction and Gastrointestinal Digestion Characteristics of Polysaccharides Extracted from Mallotus oblongfolius. Foods 2024; 13:1799. [PMID: 38928741 PMCID: PMC11202859 DOI: 10.3390/foods13121799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/26/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
The polysaccharides were extracted from the leaves of Mallotus oblongifolius (MO) using an ultrasonic-assisted extraction method in this study. The main variables affecting the yield of polysaccharides extracted from Mallotus appallatus (MOPS) were identified and optimized while concurrently investigating its antioxidant capacity, hypoglycemic activity, and digestive properties. The results indicated that the optimal ultrasound-assisted extraction of MOPS involved an ultrasound power of 200 W, a liquid-to-solid ratio of 25:1 (mL:g), an extraction temperature of 75 °C, and an ultrasound time of 45 min, leading to an extraction yield of (7.36 ± 0.45)% (m/m). The MOPS extract exhibited significant scavenging activity against DPPH and ABTS radicals with IC50 values of (25.65 ± 0.53) μg/mL and (100.38 ± 0.38) μg/mL, respectively. Furthermore, it effectively inhibited the enzymatic activities of α-glucosidase and α-amylase with IC50 values of (2.27 ± 0.07) mg/mL and (0.57 ± 0.04) mg/mL, respectively. The content of MOPS remained relatively stable in the stomach and small intestine; however, their ability to scavenge DPPH radicals and ABTS radicals and exhibit reducing power was attenuated, and the inhibition of α-amylase and α-glucosidase activity was diminished. In conclusion, the ultrasonic extraction of MOPS showed feasibility and revealed antioxidant and hypoglycemic effects. However, the activities were significantly reduced after gastric and small intestinal digestion despite no significant change in the MOPS content.
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Affiliation(s)
- Gansheng Tan
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- College of Food Science and Technology, Hainan University, Haikou 570228, China;
| | - Zhouwei Duan
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya 572000, China
| | - Guanghua Xia
- College of Food Science and Technology, Hainan University, Haikou 570228, China;
| | - Tian Xin
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- College of Food Science and Technology, Hainan University, Haikou 570228, China;
| | - Ling Yang
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya 572000, China
| | - Feng Liu
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya 572000, China
| | - Hui Xie
- Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Science, Haikou 571100, China; (G.T.); (Z.D.); (T.X.); (L.Y.); (F.L.)
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya 572000, China
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Polysaccharides from Medicine and Food Homology Materials: A Review on Their Extraction, Purification, Structure, and Biological Activities. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103215. [PMID: 35630690 PMCID: PMC9147777 DOI: 10.3390/molecules27103215] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 01/16/2023]
Abstract
Medicine and food homology (MFH) materials are rich in polysaccharides, proteins, fats, vitamins, and other components. Hence, they have good medical and nutritional values. Polysaccharides are identified as one of the pivotal bioactive constituents of MFH materials. Accumulating evidence has revealed that MFH polysaccharides (MFHPs) have a variety of biological activities, such as antioxidant, immunomodulatory, anti-tumor, hepatoprotective, anti-aging, anti-inflammatory, and radioprotective activities. Consequently, the research progress and future prospects of MFHPs must be systematically reviewed to promote their better understanding. This paper reviewed the extraction and purification methods, structure, biological activities, and potential molecular mechanisms of MFHPs. This review may provide some valuable insights for further research regarding MFHPs.
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