Investigation of Vibration Technique To Control Physical Properties of Yam Tubers (Dioscorea rotundata Poir.) During Storage
No Thumbnail Available
Date
2022-02-09
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Indonesia.
Abstract
Yam tubers loss weight during storage and prolonged
storage can reduce tuber quality and quantity.
This study investigated the application of vibration
technique for the control of physical properties of yam
tubers during storage. Measurements were conducted
on the physical properties of the tubers: weight
loss, shrinkage of the middle diameter, shrinkage of
the length, top and bottom diameter, on 108 tubers
treated and 32 tubers untreated (control). The factors
of the experimental design were three levels of
vibration frequencies, i.e. low (1 – 5 Hz), medium (60
– 100 Hz) and high (150 – 200 Hz), amplitudes of low
(5 mm), medium (10 mm), and high (20 mm), and
durations of low (5 minutes), medium (10 minutes)
and high (15 minutes). Tuber weights were classified
as small (0.1 – 2.9 kg) and large (3.0 – 5.0 kg). The
tubers were stored for ten weeks after vibration, and
their physical properties were measured every week
during the storage period. Our study demonstrated
that as the frequency, amplitude, and duration of
vibration increase, the physical properties of yam
tubers decrease significantly in both tuber classes.
The study shows that mechanical vibration can slow
down the changes of the physical properties of yam
tuber during storage.
Description
Keywords
FORESTRY, AGRICULTURAL SCIENCES, LANDSCAPE PLANNING, TECHNOLOGY