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Physical properties of infrared (IR) assisted hot air dried nutmeg ( Myristica fragrans ) seeds
Author(s) -
PS Anandu,
K Sangeetha,
Potluri Sanjana,
R Santhosh,
R Mahendran
Publication year - 2018
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.13359
Subject(s) - nutmeg , myristica fragrans , sphericity , bulk density , volume (thermodynamics) , materials science , chemistry , food science , composite material , botany , environmental science , physics , biology , quantum mechanics , soil water , soil science
A combined infrared (IR) and hot air assisted drying is an efficient synergistic process compared with usage of IR and hot air drying distinctly. In this work, physical properties of IR assisted hot air dried nutmeg ( Myristica fragrans ) seeds were determined. These properties are necessary for the design and manufacturing of equipment on handling, processing, and storing of nutmeg seeds. The mean length, width and thickness of the seeds were 3.08, 2.42, and 2.39 cm, respectively. The average value for geometric mean diameter, Sphericity, mass, surface area, area of projection, minimum and maximum radius, volume, true density, bulk density, and porosity were 2.607 cm, 0.85, 5.3 g, 21.39 cm 2 , 1.88 cm 2 , 1.21 cm, 1.71 cm, 9.3 cm 3 , 1,027.4 g/cm 3 , 21.5 g/cm 3 , and 97.82%, respectively, also the coefficient of static friction on five types of structural surface was found to be ranging from 0.276 (glass) to 0.476 (cardboard). Practical applications For the design and manufacturing of equipment on handling, processing, and storing of nutmeg seeds, infra‐red assisted hot air drying is an alternative method for industrial nutmeg post‐harvest processing applications. The study of physical properties of treated seeds is essential for uniformity and packing in standard cartons.