Abstract: The present invention relates to compositions that can be used as effective agents for prevention and protection of feed ingredients, particularly from mold growth, and methods for preparing the same. Another aspect relates to compositions containing synergistic combinations of propionic esters, free propionic acid, and propionic salts, capable of protecting against mold proliferation. Another aspect of the present invention relates to providing a user-friendly, non-corrosive approach for controlling mold growth in animal feed.

Abstract: The present disclosure provides processes for preparing an alpha-hydroxy ester by addition of a vinyl Grignard reagent to an oxalate ester and thiolation of the resulting double bond. Also provided are alpha-hydroxy esters and synthetic intermediates prepared according to processes disclosed herein and compositions comprising the alpha-hydroxy esters.

Abstract: The present disclosure provides processes for preparing an alpha-hydroxy ester from the corresponding alpha-hydroxy acid by transesterification. Also provided are alphahydroxy esters prepared according to processes disclosed herein and compositions comprising the alpha-hydroxy esters.

Abstract: The present invention relates to nanoparticles having a mean diameter of <500 nm and comprising, at their surface, a selected material. The nanoparticles are taken up by cells under physiological conditions and can be used to isolate interaction partners of the selected material within the cells. The present invention provides important advantages in that it opens up new ways of identifying cellular components and of delivering a substance of interest specifically to a selected cell compartment. The nanoparticles are also useful as a tool of diagnosis and for the constitution of chemical libraries.