บทคัดย่องานวิจัย

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Comparative performance of three different types of macadamia nut crackers.

Rodrigues, A. L. G.; Ferraz, A. C. O.; Piza, J. T.;

Engenharia Agricola Year: 1998 Vol: 17 Issue: 4 Pages: 105-114 Ref: 7 ref.

1998

บทคัดย่อ

Comparative performance of three different types of macadamia nut crackers.

Cracking macadamia nut shells to free whole kernels is one of the most important and challenging stages in their postharvest processing. Three types of macadamia crackers were tested to compare their performance in releasing whole kernels from the shells: (A) a conical cylinder and concave plate model; (B) concurrent blades, industrial model; and (C) concurrent blades, manual model. Performance tests for the crackers showed mean values of 22.9% for whole nuts, 33.8% for halves and 27.7% for fractions for type A, 47.7% whole, 18.3% halves and 28.5% fractions for B, and 51.1% whole, 22% halves and 23.5% fractions for C. Results indicate that the concurrent blade releases more whole kernels than the conical cylinder and concave plates.