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KMID : 0380619900220010082
Korean Journal of Food Science and Technology
1990 Volume.22 No. 1 p.82 ~ p.87
Studies on the Shelf - life of the Brick Shape Improved Meju



Abstract
To investigate the shelf-life of the brick shape improved Meju, the effect of the storage time and packaged storage on the quality of Meju and soy sauce were studied during 90 days storage at 30¡É. During the storage period, protease activity was rapidly increased, and it reached the maximum value after 30 days of storage and then decreased gradually with storage time. By the sensory evaluation, the soy sauce from Meju which was longer storage was increased its brown color but less sensory quality on taste and flavor. The sensory evaluation score of soy sauces were closely related to the value of protease activity of Meju, So, it was shown that the protease activity was also the major index component on the quality control for the brick shape improved Meju. The protease activity of brick shape Meju was lower during Meju making but decreased slowly during storage period than that of grain shape meju. $quot;the values of protease of Meju after 30 days storage were 359 (O.D. at 660 nm /g) in non-packaged, 349 in packaged Meju and after 180 days storage were 207, 205, respectively. It was shou that the shelf-life of the brick shape improved Meju was about 180 days by the basis (protease activity : 200 O.D. at 660nm /g) for quality control from the grain shape Meju, and it was longer than that of grain shape Meju. It was also shown that the packaged storage did not prolong the shelf-life of the brick shape improved Meju.
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