Rapeseed (Brassica napus cv. Tower) was subjected to five fractionation procedures which incorporated such treatments as milling, air classification, boiling in water, water extraction, and hexane extraction. The fractions were assayed for true metabolizable energy (TME) and energy balances were calculated for each fractionation step. Fractionation permitted the production of meals of comparatively high TME values, but in most instances the TME recovered was not substantially greater than the TME input. Boiling whole seed with water for 20 min appeared to cause an improvement, as did hot water extraction of whole seed. The most consistent benefit resulted from hexane extraction of oils. Presumably the physical treatment increased the amount of oil available for digestion and absorption.
No takes yet. Share an insight, caveat, or question.
Jones et al. (1979) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: