Related Experiment Video
Updated: Aug 16, 2025

The Effect of the Application of Thyme Essential Oil on Microbial Load During Meat Drying
Published on: March 14, 2018
Effect of freezing raw meat on the physicochemical characteristics of beef jerky
Huilin Cheng1, Eun-Young Jung2, Sumin Song1
1Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang 25354, Republic of Korea.
Abstract:
The effect of freezing raw meat on the quality characteristics of beef jerky was evaluated in the present study. Jerky was made using different types of raw beef (fresh, frozen, and frozen-thawed) with different curing times (6 h and 12 h). Frozen-thawed beef had a lower moisture content than fresh or frozen beef due to higher exudate loss (P < 0.05). Jerky made using frozen and frozen-thawed beef showed lower drying yield and higher shear force than jerky prepared using fresh beef (P < 0.05). Freezing raw beef decreased the fat content and increased the redness, yellowness, chroma, and hue values of jerky (P < 0.05). The microstructure of beef jerky was showed to increase the deformation and contraction of muscle fibers due to freezing. Longer curing times increased the moisture content of jerky made using frozen meat (P < 0.05). Jerky made using frozen or frozen-thawed meat was tough due to excessive fat and moisture loss.
Related Concept Videos
Cryo-electron Microscopy
Effects of Temperature on Free Energy
Protein Denaturation
Physical Methods for Controlling Microbial Growth: Temperature
Preparation of Samples for Electron Microscopy

