Application of Multicomponent Nanoparticles Synthesized with Andean Blackberry Fruit Extract (Rubus Glaucus) NPs (Ca, Fe, Mg-Rg) for Oyster Mushrooms (Pleurotus Ostreatus)

In the current study, the nanonutrition of oyster mushrooms (Pleurotus ostreatus) is evaluated at the laboratory level with multicomponent nanoparticles (NPs Ca, Fe, Mg-Rg). The methodology consisted of synthesizing NPs from solutions of Ca, Fe, and Mg metals with Andean blackberry (Rubus glaucus) fruit extract used as a stabilizing agent. The Ca, Fe, and Mg-Rg NPs are characterized by UV/VIS, DLS, TEM, DRX, and MEB. Subsequently, the NP solution is applied to the oyster mushroom growth substrates at 1, 1/2, 1/3, and 1/4 proportions. AA determined metal absorption from an acid digestion of the fruiting bodies. The results of the characterization indicated in the analysis: (i) DLS has an average size of 8.92 nm; (ii) TEM, the morphology of the NPs present different shapes such as square, spherical, and hexagonal with different diameter measurement averages from 16 to 80 nm; (iii) in XRD the peak of 31.63 [°2θ] Calcium—Alpha is observed; Magnetite 70.58 [°2θ] for magnetite, 18.19 [°2θ], 29.89[°2θ], 42.80 [°2θ] magnesium ferrite, (iv) VIS, a peak is observed at a wavelength of 192 nm. The fruiting body grew in the proportions of 1/3 and ¼, but not for 1:1 and 1/2. The measurement in the AA revealed that the fungus had a significant absorption of Fe but not for Ca and Mg.