Smart Storage Technology (SST) for Fish Spoilage Review

Flashcards covering the vocabulary, sensor specifications, and statistical results of the ISDORAGE SST prototype study for fish freshness monitoring.

ISDORAGE SST

A novel smart storage technology designed to detect real-time freshness levels and regulate environmental conditions to mitigate or slow down the process of post-harvest fish spoilage.

Bangus (Chanos chanos)

The specific species of fish used in the study which maintained a consumable state for over $29\,\text{hours}$ in the prototype, extending the standard $12\,\text{hour}$ shelf life by $17\,\text{hours}$.

DHT22

The temperature and humidity sensor utilized in the prototype to record an average temperature of $23.925\,^{\circ}\text{C}$ and relative humidity of $99.783\,\%$ during initial observations.

MQ137

A gas sensor used specifically to detect ammonia gas ($NH_3$) emissions, which were measured in a range from $35$ to $189$ during the study period.

MQ135

An air quality sensor integrated into the prototype to monitor carbon monoxide ($CO$) levels, which ranged between $4$ and $18$ during the observation.

Arrhenius Equation

A temperature-dependent mathematical formula used to calculate and display the spoilage rate of the fish based on data collected at $6\,\text{min}$ intervals.

Wilcoxon signed rank test

A statistical test used in trials $2$ and $3$ to confirm there were no significant differences in sensor readings after calibration, ensuring consistent prototype performance.

Friedman’s Test

A statistical assessment used to evaluate the efficiency and consistency of temperature, relative humidity, and gas sensor readings across three trials.

Post-harvest fish spoilage rate

The percentage of fish loss, currently estimated by the Bureau of Fisheries and Aquatic Resources ($\text{BFAR}$) to be between $20\,\%$ and $40\,\%$ due to insufficient post-harvest intervention.

RGB LED Visuals

A color-coded indicator system where Green signifies $Fresh$, Blue signifies $Perishable$, and Red signifies $Spoiled$ based on real-time sensor data.

Regulation Mechanism

A system within the prototype that activates fans to expel cold air and uses a servo motor to open doors to exhaust rancid air and regulate the storage environment.

Bureau of Fisheries and Aquatic Resources (BFAR)

The government agency that reported fish loss for fisheries at approximately $10$ to $12\,\text{million tons}$ per year.