Location

CoLab, OCB 100

Start Date

25-4-2024 9:00 AM

Document Type

Poster

Description

Abstract Freeze-dried products have long been a favored method for preserving food and reducing weight by removing water. Unfortunately, freeze-drying food regularly results in a substantial difference in taste between fresh and freeze-dried products. The present study attempted to find differences between a freeze-dried and a fresh sample of borscht. Thin-layer chromatography was carried out on the fresh sample of borscht to identify the efficacy of the extraction agent. Methylene chloride was used to extract both samples and gas chromatography-mass spectroscopy (GC/MS) was used to analyze the extract. GC/MS revealed substantial decreases in certain compounds, including Hexa-2,4-diyn-1-ylbenzene, a component of tarragon and one of many possible causes for the change in flavor. Other major differences between the fresh and freeze-dried products will be discussed below.

Comments

The faculty mentor for this project was Todd Watson, Chemistry.

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Apr 25th, 9:00 AM

Substantial Differences Between Freeze Dried and Fresh Borscht

CoLab, OCB 100

Abstract Freeze-dried products have long been a favored method for preserving food and reducing weight by removing water. Unfortunately, freeze-drying food regularly results in a substantial difference in taste between fresh and freeze-dried products. The present study attempted to find differences between a freeze-dried and a fresh sample of borscht. Thin-layer chromatography was carried out on the fresh sample of borscht to identify the efficacy of the extraction agent. Methylene chloride was used to extract both samples and gas chromatography-mass spectroscopy (GC/MS) was used to analyze the extract. GC/MS revealed substantial decreases in certain compounds, including Hexa-2,4-diyn-1-ylbenzene, a component of tarragon and one of many possible causes for the change in flavor. Other major differences between the fresh and freeze-dried products will be discussed below.