Protein Nitrogen Unit

**Semantic type:** Quantitative Concept

**Definition:** An unit used to quantitate protein nitrogen in acid precipitate samples based on micro-Kjeldahl measurement. One protein nitrogen unit represents 0.01 microgram of total protein nitrogen in the extracted samples.

**Synonyms:** - PNU - PROTEIN NITROGEN UNITS - PROTEIN NITROGEN UNITS - PROTEIN UNIT - [PNU] - [PNU] - [PNU] - [PNU] - [PNU] - [PNU] - protein nitrogen unit