Publication Date
1985
Location
Kyoto Japan
Description
Much of the suffering in the world today from protein-deficient diets could be alleviated by establishing small village-size green plant juice protein extraction system. One step in providing this protein involves pressing juice from plants. From fundamental research there is now extensive information available to the developers of juice pressing equipment. The primary objective of this paper is to bring available information together and indicate its application to the design of small presses of 100 to 500 kg/hr capacity. Satisfactory juice extraction can be accomplished in the following manner: (l)Maceration. (2) Applying a pressure of 700 to 2000 KPa. (3) Allowing a press hold time of one minute. (4) Restricting the press cake thickness to not over 25 mm from a drained screen surface. Press cake permeability diminishes on compaction, does not follow hydrostatic principles, and does not act as a solid under compressive load if there is provision for juice to escape. By the judicious application of these specific criteria related to dewatering of green plants, an experienced design engineer should be able to design good juice extraction presses.to satisfy local demands. Thus, a variety of less expensive, more efficient presses of greater durability may become available.
Citation
Bruhn, H D.; Straub, R J.; and Koegel, R G., "Factors Influencing the Design of Plant Juice Presses" (1985). IGC Proceedings (1985-2023). 12.
(URL: https://uknowledge.uky.edu/igc/1985/ses9/12)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Factors Influencing the Design of Plant Juice Presses
Kyoto Japan
Much of the suffering in the world today from protein-deficient diets could be alleviated by establishing small village-size green plant juice protein extraction system. One step in providing this protein involves pressing juice from plants. From fundamental research there is now extensive information available to the developers of juice pressing equipment. The primary objective of this paper is to bring available information together and indicate its application to the design of small presses of 100 to 500 kg/hr capacity. Satisfactory juice extraction can be accomplished in the following manner: (l)Maceration. (2) Applying a pressure of 700 to 2000 KPa. (3) Allowing a press hold time of one minute. (4) Restricting the press cake thickness to not over 25 mm from a drained screen surface. Press cake permeability diminishes on compaction, does not follow hydrostatic principles, and does not act as a solid under compressive load if there is provision for juice to escape. By the judicious application of these specific criteria related to dewatering of green plants, an experienced design engineer should be able to design good juice extraction presses.to satisfy local demands. Thus, a variety of less expensive, more efficient presses of greater durability may become available.
