Abstract: The method for preparing metal nanoparticles includes preparing an extract of myrrh and mixing the extract with an aqueous solution including a metal salt. The mixture changes in color from light yellow to dark brown upon formation of nanoparticles. The extract of myrrh can be a water extract prepared by, for example, soaking a quantity of myrrh in water, filtering the soaked myrrh to obtain a filtered product, and then centrifuging the filtered product. The metal salt can be, for example, silver nitrate (AgNO3). The metal nanoparticles can be spherical, spheroidal, elongated spherical, rod, and/or faceted. The metal nanoparticles can be used to treat Leishmaniasis (lesions) caused by Leishmania major.

Abstract: A method of preparing metal nanoparticles using an extract of desert truffles (Terfeziaceae) includes providing an aqueous solution including a metal salt; and combining an extract of Terfeziaceae with the aqueous metal salt solution to produce the metal nanoparticles. The metal salt can be silver nitrate (AgNO3) and the metal nanoparticles can be silver nanoparticles. The metal nanoparticles can have a mean diameter in the range of from about 5 nm to about 100 nm. The silver nanoparticles can be used as an antimicrobial agent and/or an anti-parasitic agent.

Abstract: The method for preparing metal nanoparticles includes preparing an extract of myrrh and mixing the extract with an aqueous solution including a metal salt. The mixture changes in color from light yellow to dark brown upon formation of nanoparticles. The extract of myrrh can be a water extract prepared by, for example, soaking a quantity of myrrh in water, filtering the soaked myrrh to obtain a filtered product, and then centrifuging the filtered product. The metal salt can be, for example, silver nitrate (AgNO3). The metal nanoparticles can be spherical, spheroidal, elongated spherical, rod, and/or faceted. The metal nanoparticles can be used to treat Leishmaniasis (lesions) caused by Leishmania major.

Abstract: The fish food composition includes pea meal, corn meal, soy bean meal, corn oil, and fish meal. The fish food composition can include less than 17% by weight fish meal and between about 2.0% and 4.0% by weight pea meal. The fish food composition can also include carboxymethyl cellulose and a vitamin and mineral mix.