Physical and chemical properties of soil and mushrooms in the Russulaceae family found in the Huai Hong Khrai Royal Development Study Center

Abstract

This research aimed to investigate the physical and chemical properties of soil and mushrooms belonging to the Russulaceae family, found at the Huai Hong Khrai Royal Development Study Center. The experimental results showed that the soil where mushrooms of the Russulaceae family grew in the area of the Huai Hong Khrai Royal Development Study Center had different physical and chemical properties. Most of the soil had colors of 5YR 3/3 dark reddish brown, 7.5R 4/8 red, and 7.5R 3/8 dark red, indicating a red or reddish-orange hue. The soil texture was primarily clay and sandy clay loam. Regarding acidity, the soil where mushrooms were found had a pH value ranging from 4.84 to 6.28, indicating a range from very strongly acidic to slightly acidic. In addition, the organic matter content within these soils ranged from 5.03 to 8.31%. Ten types of edible mushrooms from the Russulaceae family were found in the Huai Hong Khrai Royal Development Study Center. These were Lactarius flavidulus S. Imai., Lactarius glaucescens Crossl., Russula mairei Sing., Russula emetica (Schaeff. & Fr.) S.F.Gray., Russula rosacea (Pers.) S.F.G., Russula nigricans (Bull.) Fr., Russula alboareolata Hongo., Russula foetens Pers., Russula cyanoxantha (Schaeff.), and Russula virescens (Schaeff.) Fr. Each species exhibited different pigments within the cap and stalk depending on the type and color of the mushroom. The antioxidant activities were different in the cap and stalk of each mushroom species, but the total phenolic compounds and total protein content were not distinct.