Processing optimization of restructured jerky from sea rainbow trout frame muscle.

Area of Science:

• Food Science
• Fisheries Technology
• Sensory Analysis

Background:

• Sea rainbow trout frame muscle is a valuable byproduct often underutilized.
• Restructured jerky offers a method to add value and extend the shelf life of fish products.
• Optimizing processing parameters is crucial for product quality and consumer acceptance.

Purpose of the Study:

• To determine the optimal drying temperature and time for restructured jerky from sea rainbow trout frame muscle (RJ-SRTF).
• To evaluate the impact of drying conditions on moisture content, hardness, and sensory acceptance.
• To validate the predictive models for optimizing RJ-SRTF production.

Main Methods:

• Response surface methodology was employed to investigate the effects of drying temperature and time.
• Key quality attributes including moisture content, hardness, and sensory acceptance were measured.
• Statistical models were developed to predict optimal processing conditions.

Main Results:

• Optimal drying conditions were identified as 67.2°C and 8.6 hours.
• Predicted optimal values closely matched experimental results for moisture content (19.1 g/100 g), hardness (453.9 g/cm²), and sensory acceptance (7.4).
• The developed models demonstrated a good fit with the experimental data.

Conclusions:

• The study successfully optimized the drying process for restructured jerky from sea rainbow trout frame muscle.
• The established models are reliable for predicting and achieving desired product characteristics.
• This research provides valuable insights for the commercial production of high-quality fish jerky.