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相关概念视频

Chemistry of Carbohydrates03:25

Chemistry of Carbohydrates

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Carbohydrates are an essential part of the diet in humans and animals. Grains, fruits, and vegetables are natural sources of carbohydrates that provide energy to the body, particularly through glucose, a simple sugar that is a component of starch and an ingredient in many staple foods. The stoichiometric formula (CH2O)n, where n is the number of carbons in the molecule represents carbohydrates. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules. This...
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Carbohydrate Metabolism01:36

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Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
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Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
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Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
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Introduction to Carbohydrates01:34

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Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
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Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
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相关实验视频

Updated: Jun 14, 2025

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
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粉分子结构和糖尿病

Jihui Zhu1, Robert G Gilbert1

  • 1Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education and Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University/Jiangsu Co-Innovation Centre for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, Jiangsu Province 225009, China; The University of Queensland, Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, Brisbane, QLD 4072, Australia.

Carbohydrate polymers
|September 1, 2024
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概括

粉链长度分布 (CLD) 影响食物的消化能力和糖尿病风险. 了解CLD生物合成和测量有助于开发更健康的粉食品,改善口味和降低糖尿病风险.

关键词:
基于生物合成的模型链条长度分布的分布方式糖尿病 糖尿病 糖尿病可消化性 可消化性人类的健康和福祉.可口味性 这是一种可口味性.粉是一种粉.

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Analysis and Specification of Starch Granule Size Distributions
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Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis FACE Method
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Analysis and Specification of Starch Granule Size Distributions
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科学领域:

  • 生物化学 生物化学
  • 食品科学 食品科学 食品科学
  • 植物育种 植物育种

背景情况:

  • 粉是重要的食能量来源,其链长分布 (CLD) 显著影响食物的特性,如消化性和食感性.
  • 粉消化的速度与糖尿病有关,这是一个普遍存在的健康问题.
  • 生物合成酶,包括粉合成酶,粉分枝酶和分枝酶,调节粉CLD.

研究的目的:

  • 审查测量粉CLD的方法.
  • 检查用于将CLD与生物合成参数相匹配的模型.
  • 探索CLD,糖尿病和食物特征之间的关系,以开发改进的粉食品.

主要方法:

  • 对粉链长度分布 (CLD) 测量技术的审查,例如尺寸排除色谱和光辅助碳水化合物电泳.
  • 用酶异形活性比率将观察到的CLD与基于生物合成的模型相匹配的分析.
  • 检查CLD,糖尿病的发生和管理,以及食物的可口性之间的相互作用.

主要成果:

  • 粉CLD是生理性质的关键决定因素,包括消化性和可口性.
  • 生物合成酶异型在控制粉CLD方面发挥着至关重要的作用.
  • 数学模型可以根据酶活性比率来描述CLD特征.

结论:

  • 通过植物育种优化粉CLD可以导致更健康 (降低糖尿病风险) 和更美味的食物.
  • 了解粉生物合成途径是操纵CLD改进食品的关键.
  • 这些知识可以指导开发以粉为基础的食品,以增强营养和感官质量.