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Protein Digestion

Protein Digestion

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.

Mechanical Protein Function

Mechanical Protein Function

Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.

Role of Proteins in the Human Body

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Proteins are the building block of life. They are also the most abundant macromolecules with as many diverse roles in the body. They are part of many structural components that provide unique shapes and structures to animal cells, tissues, and organs. In addition, they also act as biological catalysts and carry out several anabolic and catabolic reactions. Notably, some proteins are chemical messengers and regulate many critical processes, such as metabolism, growth, and development. They are...

Proteins: Dietary Sources and Requirements

Proteins: Dietary Sources and Requirements

Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...

Overview of Protein Metabolism

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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...

Bacterial Protein Maturation

Bacterial Protein Maturation

Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...

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Updated: Jun 21, 2026

A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood

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Published on: April 28, 2016

Pulse Proteins: Processing, Nutrition, and Functionality in Foods.

Valeria Messina¹, Daniel J Skylas², Thomas H Roberts¹

¹School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Camperdown, NSW 2006, Australia.

Foods (Basel, Switzerland)

|April 16, 2025

Summary

This summary is machine-generated.

Pulses offer rich nutrition and agronomic benefits for sustainable farming. Their diverse proteins can be processed into functional ingredients for various food products, enhancing plant-based alternatives.

Keywords:

food processing functionality protein ingredients pulses

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Area of Science:

Agricultural Science
Food Science
Nutritional Science

Background:

Pulses are globally cultivated crops with significant agronomic advantages for sustainable agriculture.
They are a rich source of protein, carbohydrates, fiber, vitamins, minerals, and bioactive compounds.

Purpose of the Study:

To review the nutritional properties, protein quality, functionality, and applications of pulse protein ingredients.
To provide a comprehensive resource for researchers, food technologists, and manufacturers on utilizing pulse proteins.

Main Methods:

Literature review focusing on nutritional composition, protein characteristics, and functional properties of various pulse types.
Analysis of existing research on pulse protein applications in food formulations.

Main Results:

Pulses like lupins, chickpeas, faba beans, peas, and lentils offer diverse protein ingredients.
Understanding pulse protein functionality (solubility, water/oil binding, emulsification, gelation, foaming) is key to their application.
Pulse proteins have wide applications in plant-based meat and dairy alternatives, beverages, bakery, pasta, and supplements.

Conclusions:

Pulse protein ingredients present vast opportunities for innovation in food manufacturing.
Maximizing the use of pulse proteins requires understanding their unique functional properties for diverse food products.
This review serves as a guide for leveraging pulse proteins in the evolving food technology landscape.