Journal
FOODS
Volume 11, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/foods11050730
Keywords
X-ray phase-contrast computed tomography; 3-D imaging; edamame; vegetable soybean
Categories
Funding
- Utilization Project of Synchrotron Radiation Facility in Sendai City (Trial Use Project) [21H04721]
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This study conducted X-ray phase-contrast CT imaging on cooked edamame and found that vascular structures and cracks were clearly visible. The fine structure of the seed coat, important for seed development and processing, was also observed. The density of edamame decreased with increasing boiling time, resulting in reduced hardness. The results demonstrate that high-resolution nondestructive X-ray phase-contrast CT imaging can effectively evaluate vegetable quality and observe internal structures related to plant development.
Although several reports exist on the use of X-ray analysis in vegetables and fruits to examine internal disorders, cavities, and porosity, information on X-ray analysis of qualities, such as texture, is lacking as well as information on X-ray analysis of legumes. Therefore, this study aimed to perform X-ray analysis with sensory and rheometer tests in cooked vegetable soybean (edamame). Edamame is popular worldwide due to its deliciousness and nutritional value. Vascular structures and cracks around them were clearly visualized using X-ray phase-contrast computed tomography (CT) imaging. In addition, we observed the fine structure of the seed coat, which could be important for seed development, germination, and processing. The density in the edamame beans declined as the boiling time increased, promoting a reduction in hardness described in sensory and rheometer tests. The reduction in density proceeded from the gap between cotyledons, the opposite side of the hypocotyl, and the crack. Collectively, the findings show that the high-resolution X-ray phase-contrast CT imaging conducted in a nondestructive manner may help in effectively evaluating the quality of vegetables and in observing the internal structures related to plant development.
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