title: Analysis of plant harvest indices for bioregenerative life support systems.
abstract: Harvest indices, which are measures of the ratio of edible to total plant weight, are redefined to include edible sugars derived from enzymatic hydrolysis of the cellulose content of inedible plant components. Compositional analysis and carbohydrate contents of rapeseed, rice, soybeans, cowpea, wheat, sweet potato, white potato, and lettuce were analyzed to develop such generalized harvest indices. Cellulose conversion is shown to extend considerably the food available from plants otherwise grown for their oil and protein content in a bioregenerative life support system.
authors.affiliation: Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, Indiana, USA.
authors.forename: A
authors.initials: A
authors.lastname: Velayudhan
authors.forename: K L
authors.initials: KL
authors.lastname: Kohlmann
authors.forename: P J
authors.initials: PJ
authors.lastname: Westgate
authors.forename: M R
authors.initials: MR
authors.lastname: Ladisch
mesh_terms: D018533:Biomass; D002241:Carbohydrates / Q000032:analysis*; D002482:Cellulose / Q000032:analysis / Q000378:metabolism; D018556:Crops, Agricultural / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism; D018504:Ecological Systems, Closed; D006868:Hydrolysis; D008021:Life Support Systems; D013026:Space Flight
chemical_list: D002241:Carbohydrates; D002482:Cellulose