Authors
Yan Sun, Yiya Liu, Hongbo Li, Linjuan He, Shengnan Wu, Yiyanwen Huang, Wenzheng Liu, Hongjiang Long, Hua Guo
Published in
Wei sheng yan jiu = Journal of hygiene research. Volume 55. Issue 3. Pages 446-453.
Abstract
Analyze the dietary fiber and mineral content characteristics of specialty edible fungi in Guizhou Province, and evaluate their nutritional density and dietary contribution.
Thirty-five samples of specialty edible fungi(including dried and fresh products) were collected from Anshun City, Bijie City, and Qiandongnan Prefecture in Guizhou Province. Their dietary fiber and ten mineral contents were determined. Median(interquartile range) values were used to describe nutritional components. The main nutritional contents of all samples were uniformly converted to per 100 g dry matter content. The Wilcoxon signed-rank test was employed for intergroup comparisons. Spearman's rank correlation analysis was employed to investigate associations between dietary fiber and minerals. Principal component analysis was conducted on the dietary fiber and mineral(dry matter) content of all samples. Core dietary nutrients were identified based on factor loading matrices and public health significance of each nutrient. Daily intake targets were set at 5 g for dried products and and 50 g for fresh products. Contributions to core dietary nutrients were calculated based on the Dietary Reference Intakes for Chinese Residents(2023 Edition).
The soluble dietary fiber, phosphorus, potassium, and selenium content in the dried edible fungi group from Guizhou Province was lower than that in the fresh fungi group, while the insoluble dietary fiber and manganese content was higher than that in the fresh fungi group(P<0.05). The dried wood ear mushrooms from Xixiu District, Anshun City, exhibited the highest levels of total dietary fiber and magnesium(75.40 g, 327.00 mg), while the dried morel mushrooms from Jianhe County contained the highest zinc content(17.96 mg). Total dietary fiber, insoluble dietary fiber, magnesium, and potassium showed strong positive correlations(r> 0.70, P<0.001); while showing moderate positive correlations with selenium(r=0.581, r=0.538), calcium(r=0.520, r=0.487), and iron(r=0.490, r=0.446); Soluble dietary fiber showed higher correlations with iron and zinc(r=0.521, r=0.548) than with total fiber(r=0.490, r=0.380). Principal component analysis revealed that the first five principal components collectively explained 91.20% of the variance, with selenium exhibiting the highest composite loading. After conversion to dry matter content, selenium density peaked in fresh yellow mushrooms from Weining County, Bijie City, while iron and zinc density were highest in dried black-skinned chicken mushrooms from Xixui District, Anshun City. At the specified intake level, Weining County's yellow mushroom(fresh) contributed the highest proportion of selenium(21.90%), while Xixiu District's hairy wood ear fungus(fresh) provided 23.80% of dietary fiber.
Guizhou's specialty edible fungi are rich in dietary fiber and minerals. Dried varieties offer highly concentrated nutrients, while fresh varieties also demonstrate potential for high nutrient density per unit of dry matter. Different species contribute distinct nutritional benefits, with varieties such as black-skinned chicken mushrooms, yellow mushrooms, and hairy wood ear mushrooms being particularly valuable for supplementing specific micronutrients.
PMID:
42394328
Bibliographic data and abstract were imported from PubMed on 03 Jul 2026.
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