Carbohydrate crops as a renewable resource for fuels production. Volume III. Juice preservation
The objective of this study was to evaluate a process to preserve sugar crop juices. The process is energy conserving in that concentrated sugar solutions are produced with little evaporation of water. A preliminary investigation was conducted of polysaccharide hydrolysis as a means for preserving mixed sugar solutions obtained from crops such as sweet sorghum. Four subtasks have been addressed during this report period: I. Concentration of Pure Sugar Solutions by Hydrolysis of Purified Starch; II. Concentration of Genuine Sugar Crop Juice by Hydrolysis of Purified Starch; III. Concentration of Pure Sugar Solutions by Hydrolysis of Genuine Biomass Starch; and IV. Concentration of Pure Sugar Solutions by Hydrolysis of Cellulosic Materials. The results obtained from the experiments conducted in Subtasks I and II included the following: (1) Concentrated sucrose-glucose-fructose solutions (greater than 50 percent) can be prepared from simulated or actual sweet sorghum juice using enzymatic thinning and saccharification of pure starch-sugar solution mixtures. (2) Enzymatic saccharification of corn meal and cracked wheat in simulated sorghum juice was also demonstrated. (3) Concentration of sugar solutions also can be accomplished by saccharification of cellulosic materials. In our experiments, inhibition of the cellobiase component of the cellulase preparation was observed. The hydrolysis studies were directed to the demonstration of the feasibility of one approach to the preparation of concentrated, microbiologically stable sugar syrups starting with sweet sorghum juice. Future work on Subtask V of this program will continue the investigations already underway and will consider other approaches to the stabilization of juices. Subtask VI of this program will consider the process economics of the Subtask I to IV approaches, or combinations of two or more methods, that are considered to be most feasible for juice preservation.
- Research Organization:
- Battelle Columbus Labs., OH (USA)
- DOE Contract Number:
- W-7405-ENG-92
- OSTI ID:
- 5380959
- Report Number(s):
- BMI-2031(Vol.3)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CROPS
SACCHARIFICATION
FRUCTOSE
PRESERVATION
GLUCOSE
SACCHAROSE
SORGHUM
HYDROLYSIS
BEVERAGES
BIOCONVERSION
BIOMASS
BIOSYNTHESIS
CELLULOSE
ETHANOL
LIQUIDS
POLYSACCHARIDES
STARCH
ALCOHOLS
ALDEHYDES
CARBOHYDRATES
CEREALS
CHEMICAL REACTIONS
DECOMPOSITION
DISACCHARIDES
ENERGY SOURCES
FLUIDS
FOOD
GRAMINEAE
GRASS
HEXOSES
HYDROXY COMPOUNDS
KETONES
LYSIS
MONOSACCHARIDES
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
PLANTS
REAGENTS
RENEWABLE ENERGY SOURCES
SACCHARIDES
SOLVOLYSIS
SYNTHESIS
140504* - Solar Energy Conversion- Biomass Production & Conversion- (-1989)