This study investigated the ability of acidic polysaccharides from Auricularia auricula-judae (AAP) and Tremella fuciformis (TFP) mushrooms to modulate starch digestion and absorption. Gelatinised sorghum starch was used as starch-rich material, and its digestion and glucose transport were determined through in vitro digestion/Caco-2 cells model. Results showed that fortification with 0.6% AAP/TFP increased the proportion of high molecular weight α-dextrin and delayed glucose diffusion from digested starch gels. Gelatinisation of sorghum starch with AAP and TFP reduced the amount of transported glucose by 34.2% and 38.7%, respectively. This reduction was related to the inhibition of AAP/TFP on α-glucosidase and the difficulty in the hydrolysis of high molecular weight maltooligosaccharides. The potential bonding of AAP/TFP to glucose transporter (SGLT1) also impeded glucose transport. The findings suggest that AAP/TFP could act as natural hypoglycaemic agents used in starch-based foods and provide a better understanding of the hypoglycaemic mechanism of mushroom polysaccharides.
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http://dx.doi.org/10.1016/j.foodchem.2023.135426 | DOI Listing |
Planta
January 2025
Department of Plant Sciences, University of the Free State, Bloemfontein, South Africa.
Sorghum kernel composition is a crucial characteristic that determines its functional qualities. The total protein content of sorghum grain increases under drought stress, but starch, protein digestibility, and micronutrient contents decrease. Sorghum (Sorghum bicolor L.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Biological Engineering, Sichuan University of Science & Engineering, Yibin 643000, China; Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, Yibin 643000, China.
Glutinous and japonica sorghum can be applied to different production processes by their amylopectin content and starch structure. However, the differences in the fine structure and physiochemistry properties of their starches, as well as their fermentation properties remain unclear. Compared with japonica sorghum, glutinous sorghum has a higher amylopectin content, short amylose chain content, relative crystallinity, and ∆H, but lower setback (SB), and starch granule size.
View Article and Find Full Text PDFJ Food Sci Technol
January 2025
Department of Food Engineering and Technology, School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato 80, 6121, Campinas, SP 3083-862 Brazil.
Unlabelled: The effects of high hydrostatic pressure (HHP) (400-650 MPa) and holding temperature (25-50 °C) in thermally assisted HHP processing on multi-scale structure of starch (granule, crystalline and molecular), techno-functional properties, and digestibility of sorghum starch (SS) were evaluated. Response surface methodology has verified that the process impact on the modification of SS was dependent primarily on the pressure level. As HHP increased, processed SS progressively lost their granular structure and Maltese cross, indicating gradual structural disorder within the granules.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China. Electronic address:
This study aimed to probe the influence of amylose in starch granules on starch modification. Part of the amylose from sorghum starch was removed through warm water leaching, and the samples were then microwaved. The effects of treatments on starch structure, physicochemical properties, and digestibility were researched.
View Article and Find Full Text PDFArch Anim Nutr
January 2025
Departamento de Producción Animal y Salud de Sistemas Productivos, Facultad de Veterinaria, Universidad de la República del Uruguay, San José, Uruguay.
The effect of ensiling sorghum grains harvested at different dates on pig nutrient digestibility and fermentability was evaluated using approaches. A sorghum crop was divided following a randomised complete block design and distributed in 3 treatments: 1) grain harvested 113 d after sowing (40% moisture) and ensiled for 180 d (high moisture, HMG), 2) grain harvested 159 d after sowing (15% moisture), rehydrated to 40% moisture and ensiled for 180 d (reconstituted, REC), and 3) sorghum grain harvested 159 d after sowing (15% moisture) and stored dry (dry, DG). Starch content was lower in ensiled grains (HMG and REC) ( = 0.
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