Next Article in Journal
Assessing the Validity of Animal-Based Indicators of Sheep Health and Welfare: Do Observers Agree?
Previous Article in Journal
Study of a Large Square Baler with Innovative Technological Systems that Optimize the Baling Effectiveness
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

Techno-Economic Analysis of Extruding-Expelling of Soybeans to Produce Oil and Meal

Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
*
Author to whom correspondence should be addressed.
Agriculture 2019, 9(5), 87; https://doi.org/10.3390/agriculture9050087
Received: 1 March 2019 / Revised: 20 April 2019 / Accepted: 23 April 2019 / Published: 26 April 2019
  |  
PDF [4131 KB, uploaded 29 April 2019]
  |  

Abstract

Mechanical expelling (pressing) is a common and developed technique used to separate soybean oil from soybean protein and fiber. Due to the relatively higher oil content in the expelled meal compared to solvent-extracted soybean meal, the mechanical process is often used for specific purposes in industry, such as targeted livestock feed applications. For improving oil recovery and profits, two-stage mechanical process combining extrusion before the expelling process has been introduced and adapted by industrial applications. To examine the viability of this improved two-stage extruding-expelling process, techno-economic analysis was performed by using SuperPro Designer for simulation of the soybean extruding-expelling process. Soybean oil yield increases to over 70% compared to the conventional single-step expelling process with 60%. Soybean oil and soybean meal contributed about 25% and 75% of total revenues, respectively. Through fluctuations in economic conditions, soybean meal plays an important role in earning profits, making the whole mechanical process profitable. According to the sensitivity analysis, the sale of soybean meal is one of the driving forces for the mechanical expelling process, especially in large industrial scales. View Full-Text
Keywords: soybean oil; soybean meal; extruding-expelling process; techno-economic analysis; profits soybean oil; soybean meal; extruding-expelling process; techno-economic analysis; profits
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Cheng, M.-H.; Rosentrater, K.A. Techno-Economic Analysis of Extruding-Expelling of Soybeans to Produce Oil and Meal. Agriculture 2019, 9, 87.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Agriculture EISSN 2077-0472 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top