The texture parameters and the characteristics of tissues of the four kinds of buckwheat noodles with different thickenings, SOBANERI, flour, yam (ICHO-IMO), and egg used in each buckwheat. Their time changes were observed.
The four kinds of buckwheat needles were stored at the temperature of 20°C and 5°C during the experiment, and time changes were evaluated by the sensory test and observed by using a scan type electron microscope.
1) Buckwheat noodles with flour used as thickening Right after boiling it, ductile fracture and the maximum rupture energy and distortion were seen. Though the change on standing was big, it was hard to be cut compare with the other three kinds. This phenomenon correlates with the result of the sensory test.
2) Buckwheat noodles with egg used as thickening Right after boiling it, its hardness is the biggest and the time change low. The actual hardness correlates with the result of the sensory test.
3) Tomotsunagi and Imotsunagi noodles Both the hardness and rupture energy were small. Therefore, they seemed to be cut easily.
4) By the observation with an electron microscope, the change at the preservation time and temperature became slow by using TSUNAGI.
