Effect of whole green tea products including catechins, polysaccharides, and flavonols on the metabolism of added sugars

Effect of Characterized Green Tea Extraction Methods and Formulations on Enzymatic Starch Hydrolysis and Intestinal Glucose Transport

“…For instance, quercetin-rutinoside interfered with SGLT1 as a cotransporter of glucose . In our previous research, intestinal transport of glucose was significantly delayed with green tea extract formulated with polysaccharides and flavonols . Thus, to identify the mechanism of the inhibitory effect of polysaccharides and flavonols derived from green tea on glucose transport, gene expressions of glucose transporters such as SGLT1 and GLUT2 were investigated as a subsequent experiment.…”

“…In addition to catechins and polysaccharides, flavonol extracts obtained via the enzyme treatment of green tea contained quercetin, myricetin, and kaempferol, which are known to have biological functions such as inhibition activities of α-glucosidase. − In addition, several studies noted that dietary flavonol monoglucosides competitively inhibited glucose transport through the intestinal Na + -dependent glucose transporter (SGLT1) . In terms of the synergetic effects of catechin extracts formulated with excipient ingredients (polysaccharides and flavonols), both enzymatic hydrolysis and messenger RNA (mRNA) expression of SGLT1 or GLUT2 were modulated after consumption with wheat or rice starch. ,, However, the exact mechanism involved in the potential impact on postprandial glucose levels is still unclear.…”

“…25 In terms of the synergetic effects of catechin extracts formulated with excipient ingredients (polysaccharides and flavonols), both enzymatic hydrolysis and messenger RNA (mRNA) expression of SGLT1 or GLUT2 were modulated after consumption with wheat or rice starch. 16,26,27 the exact mechanism involved in the potential impact on postprandial glucose levels is still unclear. The composition of those bioactive ingredients from green tea varies according to processing and drinking methods, and such methods could provide various ranges of biological activities such as the hypoglycemic effect.…”

Effect of sturgeon gelatine hydrolysates and epigallocatechin‐3‐gallate mixtures on technological and rheological properties and viability of probiotics for fat‐free set‐type yoghurt

“…Among these, epigallocatechin‐3‐gallate (EGCG) is the most active compound with multifunctional properties including antioxidant, hypoglycaemic, anticancer and anti‐inflammatory activities (Lee et al . 2021; Rashidinejad et al . 2021).…”

Construction of Unsaturated Collagen Microsphere System Based on Hydrogen/Coordination Bond and Application

“…If it is recycled and reused, it not only eliminates environmental pollution from leather waste but also makes full use of the original leather and chrome resources, which meets the requirements of a circular economy and sustainable development of the modern tanning industry. − There are more studies on the preparation of collagen into microspheres, and the main methods are emulsion cross-linking, − spray drying, − self-assembly, − and template method. , Self-assembly is a technique by which the basic structural units spontaneously form an ordered structure. Current studies on the preparation of collagen microspheres by self-assembly methods have focused on natural plant tannins, namely, grape seed proanthocyanidin, tannin acid, tea catechin, and other plant polyphenols. ,− This type of study focuses on the structure of microspheres obtained by self-assembly with collagen in the form of hydrogen and hydrophobic bonds using the phenolic hydroxyl groups of natural tannins and the structural characteristics of their benzene rings. Few studies have been reported on the preparation of microspheres by self-assembly of synthetic tannins with collagen.…”