scholarly journals Effect of drying, blanching, pickling and maceration on the fate of 40K, total K and 137Cs in bolete mushrooms and dietary intake

Author(s):  
Jerzy Falandysz ◽  
Daniela Meloni ◽  
Alwyn R. Fernandes ◽  
Michał Saniewski

AbstractThe effects of blanching, blanching and pickling and maceration on the leaching of 137Cs and 40K from the flesh of three edible bolete mushroom species—Boletus edulis, Leccinum scabrum and Leccinum versipelle—were investigated. Significant (p < 0.05) decreases in activity were observed but varied depending on the treatment. Relative to fresh mushrooms, blanching decreased the activity concentration of 137Cs by 15 ± 13%, and of 40K, by 16 ± 7%, but blanching and pickling (vinegar) reduced activity more effectively, by 55 ± 8% and 40 ± 20% respectively. The corresponding losses of 137Cs and 40K through maceration of dried, powdered mushrooms were 38 ± 11% and 35 ± 14% ww, respectively. These results indicate that traditional domestic processing methods may not be as efficient at excluding 137Cs radioactivity as shown in some other studies. The activity concentration of 137Cs in a typically sized (100 g) portion of a processed mushroom (sourced from nearshore regions of the southern Baltic Sea coast near Gdańsk in 2015) meal was projected to be low, i.e. in the range of 0.51 to 12 Bq kg−1 ww. The corresponding effective dose of 137Cs from blanched, blanched and pickled and macerated mushrooms per capita was also assessed to be low, from 0.001 to 0.010 μSv. Nutritionally, the median concentration of potassium (330 mg) in 100 g portions of blanched or pickled mushrooms would account for around 7% of the adequate adult daily intake. Graphical abstract

Author(s):  
A. A. Nathan ◽  
T. Sombo ◽  
B. V. Gurgur ◽  
A. A. Avaa ◽  
T. A. Fadeyi

The activity concentration and Annual Effective doses of 40K, 226Ra, and 232Th in some edible mushroom species (Cantharellus cibarius, Agaricus campestris, Termitomyces robustus) found in three Local Government Areas of Benue state-Nigeria were determined using Gamma Spectrometry; the 1460KeV gamma-radiation of 40K was used to determine the concentration of 40K, gamma transition energy of 1764.5KeV 214Bi was used to determine the concentration of 226R, while the gamma transition energy of 2614KeV 208TI was used to determine the concentration of 232Th. The activity concentration due to 226Ra, 232Th and 40K in the samples ranged from 10.06±1.6 - 14.19±3.01Bqkg-1; 10.88±2.65 to 15.38±4.30Bqkg-1and 202.31±1.4 to 318.44±3.20Bqkg-1 respectively; the highest activity due to 226Ra was found in Termitomyces robustus grown in Gboko; that due to 232Th was recorded in Agaricus campestris grown in Buruku L.G.A., while the highest activity concentration due to 40K was recorded in Termitomyces robustus found in Buruku. Generally, 40K recorded the highest activity concentration in each mushroom species examined. Annual Effective Dose from these species sampled ranges from 0.0006952mSvy-1 (in Makurdi- Termitomyces robustus species) - 0.0008467mSvy-1 (in Buruku Termitomyces robustus species). The average effective dose value of 0.00788±0.000186mSvy-1 obtained in this work is below the maximum permissible level established by ICRP (1996). Thus, these mushrooms species will not pose any apparent risk to human health.


2021 ◽  
pp. 103574
Author(s):  
Lars Möller ◽  
Bernd Kreikemeyer ◽  
Gunnar Gerdts ◽  
Günter Jost ◽  
Matthias Labrenz

2021 ◽  
Vol 32 ◽  
pp. 100289
Author(s):  
Thomas van der Pol ◽  
Jochen Hinkel ◽  
Jan Merkens ◽  
Leigh MacPherson ◽  
Athanasios T. Vafeidis ◽  
...  

Nutrients ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3412
Author(s):  
Wojciech Koch ◽  
Marcin Czop ◽  
Agnieszka Nawrocka ◽  
Dariusz Wiącek

Food is a major source of minerals for humans. The main objective of this study was to determine the intake level of 10 essential macro- (Na, K, Ca, and Mg) and trace elements (Cu, Zn, Mn, Fe, Cr, and Se) with major food groups among young adults. Dietary intake of elements was evaluated using the 24-h dietary recall technique in combination with F-AAS and ICP-OES methods. A very high intake of sodium and a very low intake of calcium, combined with inappropriate sodium/potassium ratio, may be harmful to the health of the population. Dietary intake of trace elements was within the range of reference values in the subjects, with cereals being the major source of a majority of those elements, while meat (38% for Na), vegetables (25% for K), and milk products (75% for Ca) were the main contributors to the daily dietary intake of macroelements. PCA revealed several visible trends in the datasetAmong men, the intake of Zn, Cr Na and K was significantly correlated with the consumption of meat and vegetables, whereas Mg, Se, Fe and Cu with cereals and water and beverages. Among women, the intake of Mg was significantly correlated with the consumption of meat and vegetables.


2015 ◽  
Author(s):  
Yujin Song ◽  
Joachim Niemeyer ◽  
Wilfried Ellmer ◽  
Uwe Soergel ◽  
Christian Heipke

2016 ◽  
Vol 55 (2) ◽  
pp. 96-103 ◽  
Author(s):  
Marija Aja Kocuvan Mijatov ◽  
Dušanka Mičetić-Turk

Abstract Objectives The aim of the study was to assess dietary intake of coeliac disease (CD) patients and to determine if they are meeting the dietary reference values for a balanced diet. Subjects/Methods 40 women with CD, aged from 23 to 76 participated in our study. Total daily intake was assessed by a three-day food diary. Resting metabolic rate (RMR) was calculated using Harris-Benedict equation. Considering physical activity level (PAL) 1.4, the recommended total energy expenditure (TEE) value was determined. The data was evaluated with professional evaluation software Prodi and statistically analysed. Results 40 participants returned the food diary. The average energy intake was significantly too low to ensure the meeting of all-day energy needs (p<0.05). The meals contained a recommended proportion of protein, but a statistically significantly higher proportion of fat (p<0.05), lower proportion of carbohydrates and a significantly lower intake of dietary fibre (p<0.05). Regarding macro-, micro- elements and vitamins, there was a significant lack in the intake of calcium and iodine, folic acid, vitamin D and vitamin A (p<0.05), meanwhile iron intake was at the lower limit of the recommended intake, whereas zinc, potassium and vitamin K intake were significantly higher according to the recommended values, but were comparable with the intake of the general population in the Central European area. Conclusion Even in subjects with adequate or low daily energy intake, their meals contained too much fat, too few carbohydrates and dietary fibre as well as inorganic substances. The patients with CD should get regular nutritional monitoring and education on the quality and balance of a gluten-free diet.


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