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Development of meat-bone separator for small scale fish processing.

Bhushan R Bibwe1, Sharanakumar Hiregoudar1, Udaykumar R Nidoni1

  • 1Department of Processing and Food Engineering, College of Agricultural Engineering, Raichur, 584 102 Karnataka India.

Journal of Food Science and Technology
|January 16, 2014
PubMed
Summary

A new meat-bone separator for small-scale fish processing was evaluated. The belt and drum separator achieved optimal yield with specific belts and drum speeds, with minimal impact on energy consumption.

Keywords:
Bone contentColourDebonerMeat yieldMeat-bone separator

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Area of Science:

  • Food Science and Technology
  • Mechanical Engineering
  • Agricultural Engineering

Background:

  • Small-scale fish processing often faces challenges in efficiently separating meat from bone, leading to potential waste and reduced product quality.
  • Developing cost-effective and efficient machinery is crucial for enhancing the value of fish byproducts and improving processing operations.

Purpose of the Study:

  • To develop and evaluate a belt and drum type meat-bone separator for small-scale fish processing.
  • To assess the performance of the separator using Tilapia fish, focusing on capacity, yield, bone content, color, and power consumption.

Main Methods:

  • A belt and drum meat-bone separator was designed and constructed, featuring a perforated drum, electric motor, and speed reduction gearbox.
  • The separator was tested with two food-grade belts (natural rubber and canvas) at three different drum speeds (14, 20, and 24 rpm).
  • Performance metrics including machine capacity, meat yield, percentage yield, bone content, color (L-a-b values), and power consumption were measured.

Main Results:

  • Machine capacity ranged from 45.59 to 78.13 kg/h depending on belt type and drum speed.
  • The highest yield for the natural rubber belt (Belt A) was 63.78% at 14 rpm, while the canvas belt (Belt B) achieved 72.89% yield at 20 rpm.
  • Increased passes for meat recovery led to higher bone fragment insertion and decreased meat color values; total energy consumption remained consistent.

Conclusions:

  • The belt and drum separator is effective for small-scale fish processing, with optimal yield achieved at specific belt and drum speed combinations.
  • Careful consideration of processing passes is necessary to minimize bone content and maintain desirable meat color.
  • The developed separator offers a viable solution for improving meat recovery in fish processing with consistent energy requirements.