Beijing Forestry Fruit Tree Science Research Institute has made new progress in the study of walnut deep processing.

In recent years, china
s
of walnut industry has developed rapidly,
deep processing
the role of the walnut industry is becoming more and more obvious. Our research team has been committed to the theory and application of deep processing of walnuts. Following the transformation of the patented walnut blood pressure peptide and its preparation method and application (ZL201310056205.7) in 2018, new progress has been made in the functioning of walnut blood pressure peptide in recent days.
research team continuously isolated and purified walnut
protein
by using ultrafiltration,
gel
chromatography, high-efficiency
liquid phase
chromatography, etc. The parts of high ACE inhibition activity were obtained, and the three peptide segments with high ACE inhibition activity were obtained by mass spectrometry analysis, and the
amino acid
sequence was clarified, which laid the foundation for studying how walnut
protein peptides
inhibited ACE activity and thus exerted blood pressure reduction activity. The research paper "Separation and design of ACE inhibitory peptides from defatted walnut meal" is published in the international journal European Food Research and Technology (IF 2.366,
ink.springer.com/article/10.1007/s00217-020-03553-5) (DOI:).
At present, with the support of the youth fund project of the Municipal Academy of Agricultural and Forecology, the research on the molecular mechanism of the interaction between walnut protein peptide and ACE is being actively promoted with the research object of hepteptide G-V-V-P-H-N, which is simulated molecular docking technology.
In the development and application of walnut deep processing products, the research room with a kind of skin walnut kernels for cold-pressed oil, the skin of the walnut meal into walnut degreasing whole powder, give full play to the walnut protein and walnut skin polyphenol activity, and can be made into meal noodles, walnut sauce and other products. In March of this year, two patents, "Walnut skimmed whole powder and its preparation method and application" (ZL20161 0534713.5) and "walnut noodles and its preparation method" (ZL201610534955.4), were granted national invention patents and a transfer and licensing agreement was reached with Hebei Morningstar Biotech Co., Ltd. The transformation of these achievements will play an important role in promoting the development of walnut industry in Beijing, Tianjin and Hebei regions.
.