The owners of Technomic Publishing Co. have sold the Lancaster, Pa., professional publisher to two separate companies.

Sage Publications has acquired 20 journals and seven newsletters from Technomic that cover the fields of environmental sciences, food science and technology, materials science and pharmaceutical sciences. In a second deal, Technomic's books and proceedings divisions have been bought by CRC Press. The Technomic purchase follows CRC's June acquisition of Parthenon Publishing, a medical publisher specializing in women's health, dermatology and cardiology.