Physical properties of infrared (IR) assisted hot air dried nutmeg (Myristica fragrans) seeds |
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| Authors: | Anandu PS Sangeetha K Sanjana Potluri Santhosh R Mahendran R |
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| Affiliation: | 1. College of Indigenous Food Technology, Konni, Pathanamthitta, Kerala, India;2. Indian Institute of Food Processing Technology, Ministry of Food Processing Industries, Government of India, Thanjavur, Tamil Nadu, India |
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| Abstract: | 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 cm2, 1.88 cm2, 1.21 cm, 1.71 cm, 9.3 cm3, 1,027.4 g/cm3, 21.5 g/cm3, 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. |
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