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Enzyme conversion of lignocellulosic plant materials for resource recovery in a Controlled Ecological Life Support SystemA large amount of inedible plant material composed primarily of the carbohydrate materials cellulose, hemicellulose, and lignin is generated as a result of plant growth in a Controlled Ecological Life-Support System (CELSS). Cellulose is a linear homopolymer of glucose, which when properly processed will yield glucose, a valuable sugar because it can be added directly to human diets. Hemicellulose is a heteropolymer of hexoses and pentoses that can be treated to give a sugar mixture that is potentially a valuable fermentable carbon source. Such fermentations yield desirable supplements to the edible products from hydroponically-grown plants such as rapeseed, soybean, cowpea, or rice. Lignin is a three-dimensionally branched aromatic polymer, composed of phenyl propane units, which is susceptible to bioconversion through the growth of the white rot fungus, Pluerotus ostreatus. Processing conditions, that include both a hot water pretreatment and fungal growth and that lead to the facile conversion of plant polysaccharides to glucose, are presented.
Document ID
20040089892
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kohlmann, K. L.
(Purdue University West Lafayette, IN 47907-1295, United States)
Westgate, P.
Velayudhan, A.
Weil, J.
Sarikaya, A.
Brewer, M. A.
Hendrickson, R. L.
Ladisch, M. R.
Mitchell, C. A.
Date Acquired
August 21, 2013
Publication Date
January 1, 1996
Publication Information
Publication: Advances in space research : the official journal of the Committee on Space Research (COSPAR)
Volume: 18
Issue: 2-Jan
Subject Category
Man/System Technology And Life Support
Funding Number(s)
CONTRACT_GRANT: CSR9037233-5410
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 93-10
NASA Discipline Life Support Systems
Non-NASA Center
NASA Program NSCORT

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