HEBEI DAZHENG FOOD CO., LTD.

Hebei Dazheng Food Co., Ltd., established in 1999, specializes in processing walnuts and other tree nuts. Located in the Fuping Economic Development Zone, the company operates on 5.7 acres with a modern facility spanning 18,000 square meters. With over 40 years of industry experience, founder Zheng Qiulai has led Dazheng to become a top walnut […]

Effects of Walnut Consumption on Blood Lipid Profile and Apolipoproteins in Adults: A GRADE-Assessed Systematic Review and Dose-Response Meta-Analysis of 49 Randomized Controlled Trials

Walnuts (Juglans regia L.) are rich in polyunsaturated fatty acids (PUFAs), fiber, and bioactive compounds that may positively affect lipid metabolism. Although several clinical trials have examined their impact on the lipid profile, results have been inconsistent, and evidence regarding their effects on apolipoproteins is limited. This meta-analysis aims to systematically assess the impact of […]

Physically crosslinked polyphenol-chitosan edible coating for the application of walnut kernels during roasting

This study developed an edible chitosan-based coating incorporating the main polyphenols from walnut kernel seed coats (gallic acid, ferulic acid, and ellagic acid) to enhance the oxidative stability and sensory quality of fresh walnut kernels during roasting. SEM and AFM analysis revealed that gallic acid-loaded chitosan films exhibited a uniform yet rough morphology, while zeta […]

Fermentation as a strategy to improve the bioactive and antioxidant properties of walnuts and their derived products

Oxidative stress is a significant factor in the development of many chronic illnesses, and antioxidants play a vital role in mitigating its effects. The walnut (Juglans regia L.) is widely recognized for its diverse range of bioactive compounds, particularly polyphenols, flavonoids, and tocopherols, which exhibit notable antioxidant properties. These beneficial compounds are found in various […]

Daily walnut consumption increases 6-sulfatoxymelatonin urinary levels and can improve sleep quality: a randomized crossover trial

We aimed to study the potential impact of daily consumption of walnuts on urinary 6-sulphatoxymelatonin (6-SMT) levels and sleep quality parameters. We conducted an open-label randomized crossover trial (NCT04799821) in 76 young adults (24.1 ± 3.4 years; 85.5% women) who either ingested 40 g of walnuts daily during dinner (intervention) or refrained from eating walnuts […]