Related Experiment Video
Updated: Jun 27, 2026
10:03
Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
Published on: August 15, 2025
Rice Bran Polysaccharides: Structure, Modification, Bioactivity, and Application Potential in Food and Health Systems
Jiayue Li1, Yuanyuan Sun1, Mengran Zhang1
1Key Laboratory of Geriatric Nutrition and Health, College of Food and Health, Ministry of Education, Beijing Technology and Business University, Liangxiang, Fangshan District, Beijing 100048, China.
Foods (Basel, Switzerland)
|June 26, 2026
Summary
Rice bran polysaccharides (RBPs) offer diverse biological activities, including anti-inflammatory and antioxidant effects. Their properties can be modified by extraction and processing for food, pharmaceutical, and cosmetic applications.
Area of Science:
- Biochemistry and Food Science
- Natural Product Chemistry
Background:
- Rice bran polysaccharides (RBPs) are abundant bioactive compounds derived from rice bran, a milling byproduct.
- These polysaccharides possess diverse biological activities and complex structures with significant industrial potential.
Purpose of the Study:
- To review recent advances in the composition and bioactivity of RBPs.
- To analyze how extraction and modification methods influence RBP properties and functions.
- To explore the industrial applications of RBPs, focusing on their role as delivery carriers, food additives, and bioactive components.
Main Methods:
- Literature review of recent studies on rice bran polysaccharides.
- Analysis of extraction techniques and physicochemical modification strategies.
- Evaluation of RBP effects on anti-inflammatory, antioxidant, immunomodulatory, and gut microbiota activities.
Main Results:
- Extraction methods and physicochemical modifications significantly alter RBP molecular weight, monosaccharide composition, and chain conformation.
- These alterations modulate key biological activities, including anti-inflammatory, antioxidant, immunomodulatory, and gut microbiota-regulating effects.
- RBPs show promise for industrial applications as delivery carriers, food additives, and bioactive ingredients.
Conclusions:
- Physicochemical properties of RBPs are crucial for their biological functions and industrial applicability.
- Optimizing extraction and modification processes can enhance RBP efficacy for various applications.
- RBPs represent a valuable resource for the food, pharmaceutical, and cosmetic industries.
Related Concept Videos
01:26Biosynthesis of Polysaccharides
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
01:05Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
01:59Plant Breeding and Biotechnology
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
01:15Cellulose and Pectic Polysaccharides
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
01:24Oligosaccharide Assembly
Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...
Multiple sugar molecules that may or may...
01:27Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...