微藻蛋白质消化能力:如何打开黑盒子?
Simon Van De Walle1, Keshia Broucke1, Marie-Christin Baune2
1Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium.
Critical reviews in food science and nutrition
|July 8, 2024
概括
微藻提供可持续的蛋白质,但坚固的细胞壁阻碍了消化. 细胞破坏方法的有效性各不相同,需要更多的研究来有效地提取蛋白质和维护质量.
科学领域:
- * 食品科学 食品科学
- * 生物技术 * 生物技术
- * 可持续营养 可持续营养
背景情况:
- * 微藻越来越被认为是人类和动物消费的可持续蛋白质来源.
- * 某些微藻菌株的坚固细胞壁对蛋白质的消化能力和生物可用性构成重大挑战.
- *了解和克服这些细胞壁障碍对于释放微藻的全部营养潜力至关重要.
研究的目的:
- * 审查和讨论微藻在完整和破坏的细胞状态中的蛋白质消化能力.
- *分析影响微藻蛋白消化能力的因素,包括细胞壁结构和基质组成.
- * 评估各种细胞破坏技术的有效性,并识别知识差距.
主要方法:
- * 对微藻蛋白消化能力研究的综合文献综述.
- * 分析影响蛋白质可访问性的因素,包括细胞壁特性和消化方法.
- *不同细胞破坏技术的比较及其对蛋白质释放的影响.
主要成果:
- * 完整的微藻细胞中的蛋白质消化能力主要取决于细胞壁的结构特征和采用的特定消化方法.
- *当微藻类被纳入时,食品或料矩阵的组成显著影响蛋白质的消化能力.
- *当前的细胞破坏方法显示出可变的有效性,由各种实验模型,微藻菌株和破坏条件复杂化.
结论:
- * 进一步的研究对于阐明微藻细胞壁结构和开发高效,具有成本效益的破坏技术至关重要.
- *优化破坏方法是提高蛋白质可用性的关键,而不会影响蛋白质质量.
- *需要标准化的方法来可靠地比较破坏技术和可消化的结果.
相关概念视频
Protein Digestion
103.3K
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
103.3K
Mechanical and Chemical Digestion in the Small Intestine
861
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
861
Protein Absorption
156
Proteins in the gastrointestinal tract typically come from food, but they can also originate from disintegrated cells or secreted enzymes. In the stomach, the enzyme pepsin breaks down these proteins into polypeptides. The fragments then move into the duodenum as a semi-fluid mass called chyme. Pancreatic proteases, such as trypsin and chymotrypsin, and intestinal brush border enzymes like carboxypeptidases further dismantle the polypeptides into tripeptides, dipeptides, and free amino acids.
156
Lipid Digestion
91.4K
Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
91.4K
Physiology of the Gastrointestinal System II: Digestion and Absorption
475
The gastrointestinal (GI) tract, extending from the mouth to the anus, plays a pivotal role in the digestion and absorption of nutrients. This process involves both mechanical and chemical actions facilitated by various enzymes.
Digestion begins in the mouth, where food undergoes mechanical breakdown by chewing and combines with saliva. Salivary amylase, an enzyme in saliva, starts the breakdown of starches into maltose. The food then travels down the esophagus to the stomach.
In the stomach, a...
Digestion begins in the mouth, where food undergoes mechanical breakdown by chewing and combines with saliva. Salivary amylase, an enzyme in saliva, starts the breakdown of starches into maltose. The food then travels down the esophagus to the stomach.
In the stomach, a...
475
Overview of Protein Metabolism
977
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
977


