Marinus Van Krimpen - Academia.edu (original) (raw)
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Papers by Marinus Van Krimpen
Abstract The growing world population demands an increase in animal protein production. Seaweed m... more Abstract The growing world population demands an increase
in animal protein production. Seaweed may be a valuable
source of protein for animal feed. However, a biorefinery
approach aimed at cascading valorisation of both protein and
non-protein seaweed constituents is required to realise an economically
feasible value chain. In this study, such a
biorefinery approach is presented for the green seaweed
Ulva lactuca containing 225 g protein (N×4.6) kg−1 dry matter
(DM). The sugars in the biomass were solubilised by hot
water treatment followed by enzymatic hydrolysis and centrifugation
resulting in a sugar-rich hydrolysate (38.8 g L−1
sugars) containing glucose, rhamnose and xylose, and a
protein-enriched (343 g kg−1 in DM) extracted fraction. This
extracted fraction was characterised for use in animal feed, as
compared to U. lactuca biomass. Based on the content of
essential amino acids and the in vitro N (85 %) and organic
matter (90 %) digestibility, the extracted fraction seems a
promising protein source in diets for monogastric animals
with improved characteristics as compared to the intact
U. lactuca. The gas production test indicated a moderate
rumen fermentation of U. lactuca and the extracted fraction,
about similar to that of alfalfa. Reduction of the
high content of minerals and trace elements may be
required to allow a high inclusion level of U. lactuca
products in animal diets. The hydrolysate was used successfully
for the production of acetone, butanol, ethanol
and 1,2-propanediol by clostridial fermentation, and the
rhamnose fermentation pattern was studied.
NJAS - Wageningen Journal of Life Sciences, 2011
Veterinary Parasitology, 2010
... 2007). Dried chicory abolished egg excretion within 2-6 days, but after withdrawal of the chi... more ... 2007). Dried chicory abolished egg excretion within 2-6 days, but after withdrawal of the chicory faecal egg counts increased. ... WP4.2 Alternative treatment strategies for controlling endo-and ectoparasites of pigs and poultry. POULTRY ...
The Journal of Poultry Science, 2012
Het gebruik van AMGB's staat ter discussie. Het is niet uitgesloten dat het gebruik van AMGB... more Het gebruik van AMGB's staat ter discussie. Het is niet uitgesloten dat het gebruik van AMGB's binnen een aantal jaren volledig verboden gaat worden. Dit zou met name voor de diercategorie gespeende biggen gevolgen kunnen hebben voor technische resultaten en gezondheid.
Abstract The growing world population demands an increase in animal protein production. Seaweed m... more Abstract The growing world population demands an increase
in animal protein production. Seaweed may be a valuable
source of protein for animal feed. However, a biorefinery
approach aimed at cascading valorisation of both protein and
non-protein seaweed constituents is required to realise an economically
feasible value chain. In this study, such a
biorefinery approach is presented for the green seaweed
Ulva lactuca containing 225 g protein (N×4.6) kg−1 dry matter
(DM). The sugars in the biomass were solubilised by hot
water treatment followed by enzymatic hydrolysis and centrifugation
resulting in a sugar-rich hydrolysate (38.8 g L−1
sugars) containing glucose, rhamnose and xylose, and a
protein-enriched (343 g kg−1 in DM) extracted fraction. This
extracted fraction was characterised for use in animal feed, as
compared to U. lactuca biomass. Based on the content of
essential amino acids and the in vitro N (85 %) and organic
matter (90 %) digestibility, the extracted fraction seems a
promising protein source in diets for monogastric animals
with improved characteristics as compared to the intact
U. lactuca. The gas production test indicated a moderate
rumen fermentation of U. lactuca and the extracted fraction,
about similar to that of alfalfa. Reduction of the
high content of minerals and trace elements may be
required to allow a high inclusion level of U. lactuca
products in animal diets. The hydrolysate was used successfully
for the production of acetone, butanol, ethanol
and 1,2-propanediol by clostridial fermentation, and the
rhamnose fermentation pattern was studied.
NJAS - Wageningen Journal of Life Sciences, 2011
Veterinary Parasitology, 2010
... 2007). Dried chicory abolished egg excretion within 2-6 days, but after withdrawal of the chi... more ... 2007). Dried chicory abolished egg excretion within 2-6 days, but after withdrawal of the chicory faecal egg counts increased. ... WP4.2 Alternative treatment strategies for controlling endo-and ectoparasites of pigs and poultry. POULTRY ...
The Journal of Poultry Science, 2012
Het gebruik van AMGB's staat ter discussie. Het is niet uitgesloten dat het gebruik van AMGB... more Het gebruik van AMGB's staat ter discussie. Het is niet uitgesloten dat het gebruik van AMGB's binnen een aantal jaren volledig verboden gaat worden. Dit zou met name voor de diercategorie gespeende biggen gevolgen kunnen hebben voor technische resultaten en gezondheid.