浅漬けキャベツの日持ちに及ぼすキトサンの影響

概要

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1) Treatment with chitosan did not affect pH,organic acid content and transmission in the brine during storage for 6 days at 5℃ and 10℃. Non treated control and acetic acid treatment showed a slight change of pH and organic acid content.Transmission percentage in the brine showed a considerable reduction. At 20℃ and 30℃、the effect of chitosan treatment on pH, acetic acid content and transmisstion was detected sligtly.2) Viable cells of chitosan treatments at 10℃ merely showed an increase from 10/ml to 10 4~10 5 /ml during the 6 days. On the other hand, those of control and caetic caid treatments showed an increased from 10 3~10 4/ml to 10 7/ml or ever.Viable cells of chitosan treatments went up a good deal at 20℃ and showed the same number of cells as those of control and acetic acid treatments after 3 days.3)Even when NaCl and chitosan were added,viable cells showed low count despite of low NaCl concentration.
松山東雲女子大学・松山東雲短期大学の論文