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Fermentation of rapeseed meal, sunflower meal and faba beans in combination with wheat bran increases solubility of protein and phosphorus
Author(s) -
Poulsen Hanne Damgaard,
Blaabjerg Karoline
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7721
Subject(s) - bran , rapeseed , solubility , response surface methodology , food science , fermentation , meal , sunflower , chemistry , biology , agronomy , chromatography , raw material , organic chemistry
BACKGROUND To increase self‐supply of protein and phosphorus (P) in European pig and poultry diets and reduce nitrogen (N) and P excretion, attention is directed to approaches increasing protein and P digestibility of rapeseed, sunflower and faba beans. Wheat bran is rich in enzymes degrading and solubilizing protein and phytate. Herein, solubilization of protein, N and P was investigated when increasing ratios of wheat bran were fermented with rapeseed meal ( RSM ), sunflower meal ( SFM ), faba beans ( FB ) or a combination of these ( RSM / SFM / FB ). RESULTS Protein, N and P solubility was greater, for all mixtures, the more wheat bran was included and the longer the mixtures were fermented. The increase in N ( FB > RSM / SFM / FB > SFM > RSM ) and protein solubility ( RSM / SFM / FB > RSM > SFM > FB ) was greatest from day 0 to day 3 and thereafter limited, whereas P solubility increased during the whole period (5 days; FB > RSM / SFM / FB > SFM > RSM ). In general, FB showed the highest solubility and highest increase in N and P solubility, while RSM showed the highest protein solubility and RSM / SFM / FB the highest increase in protein solubility. CONCLUSION Fermentation of RSM, SFM, FB and RSM/SFM/FB without or with wheat bran uncovers a potential for increased protein and P digestibility and thereby reduced N and P excretion from pigs and poultry. © 2016 Society of Chemical Industry