Rice protein powder is the protein in rice, generally found in by-products of rice processing. Compared with wheat and corn protein, rice protein is hypoallergenic and easy to digest. It is recognized as a high-quality dietary protein and has broad application prospects in infant food and high-end food.
What Type of Protein is Found In Rice?
Whole rice contains about 8% protein. It is mainly composed of albumin (2% to 5%), globulin (2% to 10%),
It is composed of gluten (66% to 78%) and gliadin (1% to 5%). Among them, water-insoluble gluten and gliadin account for more than 80%. Therefore, the content and quality of rice protein produced by different processing methods vary greatly. Rice protein is the most bioavailable protein of all grains. In addition, rice protein is a hypoallergenic plant protein that is
The in vivo digestibility, biological value and net protein utilization were 88.8%, 90% and 79.9%, respectively. Therefore, it is suitable for use in food for infants and middle-aged and elderly people.
Rice Protein Modification
Rice protein is a rigid globular structural protein. The subunits form dense molecular aggregates through intramolecular and intermolecular disulfide bonds and hydrophobic interactions. The poor solubility limits its application in the food field. At present, the research and utilization of rice protein mostly focus on its solubilization and modification, among which enzymatic solubilization and modification are the main ones. In addition, using rice protein as a raw material, the enzymatic preparation of rice peptides, especially the preparation of high-purity active peptides, is the main direction of rice protein deep processing.
Production Requirements
The market requirements for high-end edible rice protein powder are that the protein content of rice is more than 80%, the lipid content is less than 1%, the heavy metal content is less than 10mg/kg, and more than 270 pesticide residues cannot be detected.
Therefore, in the process of syrup processing, to improve the quality of rice dregs protein, it is necessary to improve the original process from raw materials, syrup processing, degreasing, and heavy metal removal. For example, it is necessary to choose raw materials from organic broken rice and low-polluting broken rice. Impurity treatment technology in broken rice: removal of stones, metal chips, rice bran, rice husk, etc. The rice dregs with high fat must be defatted, which can effectively reduce the odor and discoloration of rice protein during storage. For rice dregs with excessive heavy metals, some methods need to be used to remove heavy metal ions, such as cadmium and lead.
Summary
With the improvement of living standards and people's continuous pursuit of health, protein from plant sources has become more and more important in dietary supplements and food processing. As a high-nutrition, hypoallergenic, high-quality vegetable protein, rice protein is very suitable for children, the elderly and the sick.
Qyherb continuously optimizes production technology to improve the solubility, foaming, emulsifying, and oil absorption of rice protein. We aim to provide our customers with the best rice protein powder with high functionality and good processing indicators.