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Food-derived carbohydrates--structural complexity and functional diversity
1Department of Biochemistry and Nutrition, Central Food Technological Research Institute, Mysore, India.
Critical Reviews in Biotechnology
|April 18, 2002
Summary
Carbohydrates, like starch, play vital roles in food texture and human health. Resistant starch (RS) offers a new avenue for creating fiber-rich, nutraceutical foods with health benefits.
Area of Science:
- Biochemistry and Food Science: Focus on carbohydrate biomolecules and their diverse physiological and nutritional functions.
Background:
- Carbohydrates encompass a wide range, from simple sugars to complex polysaccharides, influencing food properties and biological processes.
- Starch, a primary energy source, exhibits unique processing behaviors, while other non-starch carbohydrates like arabinoxylans provide structural roles in plants.
- Resistant starch (RS) is a fraction of starch indigestible in the human GI tract, offering potential health benefits.
Purpose of the Study:
- To explore the multifaceted roles of carbohydrates in biological systems and food science.
- To investigate the properties and applications of resistant starch (RS) as a functional food ingredient.
- To understand the structural significance and functions of plant cell wall polysaccharides like arabinoxylans.
Main Methods:
- Literature review on carbohydrate properties, functions, and processing.
- Analysis of starch gelatinization, melting behavior, and the impact of processing on resistant starch (RS) formation.
- Examination of the chemical structure and biological roles of cereal polysaccharides (arabinoxylans) and plant cell wall components (arabinogalactans).
Main Results:
- Carbohydrates significantly impact food texture, appeal, and therapeutic value, involved in immunity, signaling, and host-pathogen interactions.
- Resistant starch (RS) can be increased through controlled processing, yielding a valuable fiber for nutraceutical applications.
- Arabinoxylans and arabinogalactans play crucial roles in plant cell wall structure, defense mechanisms, and cellular processes.
Conclusions:
- Carbohydrates are essential biomolecules with diverse applications in food and medicine.
- Resistant starch (RS) represents a promising ingredient for developing functional and health-promoting foods.
- Plant polysaccharides exhibit complex structures and functions vital for plant biology and interaction with the environment.