ISSN:
0138-4988
Keywords:
Life Sciences
;
Life Sciences (general)
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Changes in chemical composition and morphology of wheat straw during a 5-step treatment with delute aqueous sodium hydroxide of increasing (step 1 to 3) and then decreasing (step 4 and 5) NaOH concentration are described varying straw pretreatment, maximum NaOH concentration and total time of contact between straw and lye. These structural changes are correlated to increase in swelling, in-vitro degradability by cellulase and digestibility as revealed by feeding tests with sheep. Results are discussed on the basis of the processes of swelling, delignification and pentosan extraction, and the technological advantages of this multi-step treatment for enhancing the nutritional value of straw are discussed in comparison to a one-step treatment with subsequent lye-removal by pressing.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/abio.370080615
