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Here we describe a redesigned protocol of the yeast estrogen screen developed by Routledge and Sumpter. The redesigned test comprises two steps. First, a large amount of yeast with estrogenic compounds is incubated for 24 hr. Subsequently, a mixture of cycloheximide and the chromogenic substrate chlorophenol red-beta-d-galactopyranoside (CPRG) is added. The(More)
During food processing, peptide-containing products often experience thermal stress, which can be voluntary heat treatments to prolong expiration date, or unwanted side-effects, e.g. local heating during powder compaction or milling. No information is currently available on the primary structure stability of peptides when heated in the dry state. Therefore,(More)
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