1 / 16

Quantification of Oil Present in Corn Masa By-product Stream

Quantification of Oil Present in Corn Masa By-product Stream. Amy Dee Schlechte Maitri Thakur. Agenda. Introduction to Corn Masa Project Objectives Procedure Results and Discussions Conclusion Future Recommendations Questions . Introduction to Corn Masa. Corn is a Valuable Commodity

shana
Download Presentation

Quantification of Oil Present in Corn Masa By-product Stream

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quantification of Oil Present in Corn Masa By-product Stream Amy Dee Schlechte Maitri Thakur

  2. Agenda • Introduction to Corn Masa • Project Objectives • Procedure • Results and Discussions • Conclusion • Future Recommendations • Questions

  3. Introduction to Corn Masa • Corn is a Valuable Commodity • Starch, Cereal, Tortillas, etc…. • Corn Masa Processing (Nixtamalization) • Grain Cooked with H20 & Lime • Steeped • Separated • Cooked Grain • Steep Liquor

  4. Introduction • Nutrient Loss in Steeping Liquid • Fiber, Ash, Minerals, Proteins, Oil • Oil Extraction Methods • Solvent Extraction using Hexane • Supercritical Fluid Extraction (SFE) using CO2

  5. Objectives • Find a Suitable Method for Oil Extraction • Compare Solvent Extraction & Super Critical Fluid Extraction Methods • Determine if Oil is Concentrated in High or Low Density Fraction of By-product

  6. Procedure • Obtained 2 Samples - Minsa Red Oak, Iowa • Dried Samples @ 50o C for 7 Days • Performed Solvent Extraction & SFE

  7. Solvent Extraction Procedure • Combined 25g Dried Masa w/ 75 ml Hexane • Filtered & Replaced Solvent 3 Times/24 Hrs • Accumulated 1200ml of Solvent • Used Rotary Evaporator to Reclaim Oil from Solvent

  8. SFE Procedure • Sample 2 Centrifuged @ 4400 RPM for 20 Minutes • High Density Fraction • Low Density Fraction • SFE Performed using CO2 • 5 Samples (2-3g each) • 2 Reps @ 42 min/cycle

  9. SFE Process • Supercritical conditions 8500 psi and 1200 C

  10. Results & Discussion

  11. Results & Discussion • Hexane Extraction • Low Percentage Oil Collected • Consistent Results • Test Implications • Oil Still Contained • Low Oil Content

  12. Results & Discussion Masa 1 High Density Low Density Masa 2 Hex Ext.

  13. Results & Discussion • SFE • Consistent Results From Duplicate Tests • Greater Yield than Solvent Extraction • Test Implications • Solvent Extraction + SFE = Higher Extractable Oil • Consistent Results • High & Low Density Samples • Masa 1 & Masa 2

  14. Conclusions • Low Overall Oil Content • SFE vs. Solvent Extraction • Synergistic Effects • Equal Distribution of Oil

  15. Future Recommendations • Use a Different Solvent (Methanol & Chloroform) • Perform Solvent Extraction with different ratios of Sample to Solvent • Perform Additional Tests With High and Low Density Fractions

  16. Questions??

More Related