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Replacement of animal proteins in food: How to take advantage of nutritional and gelling properties of alternative protein sources

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TAYLOR & FRANCIS INC
DOI: 10.1080/10408398.2021.1956426

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diet; essential amino acids; formulation; gelation; nutrition

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With the global population growing, it is important to balance the intake of animal and vegetable protein sources and limit overall protein resources. This article analyzes the protein concentration and essential amino acids of different protein sources to meet human needs. New classification indexes are proposed, considering the influence of protein gelation in food formulation, and improvements are suggested to fulfill human nutritional requirements.
Given the growing world population, there is a need to balance animal and vegetable sources of dietary protein and to limit overall protein resources, and food formulation has to consider alternative protein sources as a way to meet human requirements. The protein concentration, essential amino acids (EAA) of all protein sources were analyzed with respect to human needs along with additional macronutrients of nutritional and energy interest (i.e. carbohydrates and lipids). New indexes are proposed to classify the alternative protein sources considering their EAA balance and how it may change during food processing. A global overview of all protein sources is provided including the quantity of food and associated caloric intakes required to fulfill our daily protein needs. As texture is a key parameter in food formulation, and is often influenced by protein gelation, we conducted an exhaustive review of the literature in a large scientific database on the ability of proteins from all sources to go through the sol-gel transition with the corresponding physical-chemical conditions. Traditional and innovative recipes are discussed and some improvement are proposed in terms of their ability to fulfill human needs for EAA and food and caloric intakes.

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