Protein content is a key indicator of grain quality in narrow-leafed lupin, determining its feed and nutritional value. In modern varieties, this figure typically ranges from 32% to 36%, reaching up to 38% of dry matter in certain cases.
In the reference
21
varieties
crop Narrow-leaf lupin,
where this is mentioned in the description.
To determine the mass fraction of crude protein in narrow-leafed lupin grain, the Kjeldahl method or automated nitrogen analyzers are used, with a conversion factor of 6.25. Protein content directly depends on varietal characteristics and growing conditions, serving as a priority trait in breeding alongside alkaloid control.
Lupin grain is characterized by high biological value due to its complete amino acid profile, particularly a high lysine content. Since protein concentration is significantly lower in the seed coat than in the kernel, technological dehulling is employed to produce high-protein concentrates and flour.
General information about the subject — on the page
Protein content.
Varieties of Narrow-leaf lupin mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.