CHEMICAL COMPOSITION OF VETCH SEEDS AND PROTEIN ISOLATE OBTAINED BY pH-SHIFTING TREATMENT

Authors

DOI:

https://doi.org/10.15421/jchemtech.v30i4.270685

Keywords:

vetch seeds, essential amino acids, pH-shifting treatment, protein isolate, water holding capacity, fat binding capacity, plant protein, food additives, sausages, food products, confectionery, dietary and vegetarian nutrition

Abstract

The chemical composition of vetch seeds (Vicia sativa L.) was studied to determine its potential as a raw material for obtaining protein isolate by pH-shifting treatment. Research results confirm the effectiveness of using vetch seeds to obtain protein isolate. Vetch seeds are low in lipids (2.08 % on dry weight), high in crude protein (30.12 % on dry weight) and rich in minerals (Zn, Mn, Cu, Mg and P). The ratio of essential amino acids to non-essential in vetch seeds (0.65). This is higher than the amount recommended by the World Health Organization. Plant protein is an alternative to animal protein in the food industry. Until now, vetch seeds (Vicia sativa L.) have not been widely used in the food industry due to the lack of industrial processing technologies. Protein isolate from vetch seeds was obtained by pH-shifting treatment. The chemical composition and functional properties of vetch seed protein isolate were determined. After pH-shifting treatment, the chemical composition of protein and mineral elements did not show significant changes. The protein content of the vetch seed protein isolate was 87.3 %, and the yield of the vetch seed protein isolate was 26.7 %. Indicators of water holding and fat binding capacity were investigated to confirm the functional properties of vetch seed protein isolate. The seeds of vetch and its protein isolate showed high functional properties and a high-quality chemical composition of proteins and minerals for use in the technology of sausage and confectionery, and as food for dietetic and vegetarian nutrition.

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Published

2023-01-26