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Design and development of technology for walnut cracking
S Z Hussain1, B Ammatullah1, V Kanojia1
1Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology (SKUAST) Kashmir, Shalimar, Srinagar, 190025 India.
Journal of Food Science and Technology
|November 29, 2018
Summary
This study developed hand-operated and power-driven walnut crackers. The power cracker offers the highest throughput and lowest labor, while the hand cracker excels in kernel wholeness and recovery.
Area of Science:
- Agricultural Engineering
- Food Science and Technology
Background:
- Efficient processing of walnuts is crucial for maximizing kernel recovery and quality.
- Existing manual cracking methods are labor-intensive and may result in lower yields.
Purpose of the Study:
- To design, develop, and evaluate hand-operated and power-driven walnut crackers.
- To compare the performance of developed crackers against manual cracking for different walnut types.
Main Methods:
- Walnuts (Kaghazi and medium-shelled) were soaked under optimized conditions.
- Developed hand-operated and power-driven crackers were used for cracking.
- Performance parameters including shelling coefficient, cracking coefficient, coefficient of wholeness, throughput capacity, labor requirement, and cracking efficiency were evaluated.
Main Results:
- Manual and hand-operated methods achieved 100% shelling and a cracking coefficient of 1.
- Hand-operated cracking yielded the highest coefficient of wholeness and cracking efficiency.
- Power-operated cracking demonstrated the highest throughput capacity and lowest labor requirement.
Conclusions:
- Both hand-operated and power-driven walnut crackers are effective for small to medium-scale operations.
- The choice of cracker depends on balancing throughput, labor, and kernel quality requirements.
- Developed crackers offer economic benefits for walnut growers and processing industries.
Keywords:
ButterballsCracking efficiencyKernel halvesShelling coefficientThroughput capacityWalnut crackerMore Related Videos
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