OTA TOSHIHIRO,太田 稔宏,NISHIYAMA YASUMASA,西山 康正,SANO TADASHI,佐野 正
申请号：
JP2015235276
公开号：
JP2017099331A
申请日:
2015.12.02
申请国别(地区):
JP
年份:
2017
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide a freshness maintaining device and a freshness maintaining method that can extend a freshness maintenance period of marine products.SOLUTION: A freshness maintaining device is characterized by pumping up breeding water from a farming aquarium 10 and pressurizing it with a circulating pump 11, convolving air into the breeding water by a gas dissolution unit 12 and dissolving or equilibrating the dissolved air, and supplying this breeding water to a floating separation/retention unit 14. Micro-nanobubbles are generated in a micro-nanobubble generating unit 13. The scum on a liquid level is eliminated by a scum processing unit 15, and a liquid level of the breeding water in a gas dissolution unit 12 and the floating separation/retention unit 14 is adjusted by a liquid level adjusting unit 16. Thereafter, the breeding water containing nanobubbles is returned to the farming aquarium 10 by a reflux unit 17. The floating separation/retention unit 14 performs floating separation of the filth derived from the marine products of the breeding water by the bubbles of a large diameter area among the micro-nanobubbles, and retaining the bubbles of a small diameter area among the micro-nanobubbles for a predetermined time, thereby forming the nanobubbles.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】水産物の鮮度維持期間を延長することが可能な鮮度維持装置及び鮮度維持方法を提供する。【解決手段】畜養水槽10から飼育水を汲み上げて循環ポンプ11で加圧し、気体溶解部12により飼育水に空気を巻き込ませて、溶存空気を溶解又は平衡化し、この飼育水を浮上分離兼滞留部14に供給する。マイクロナノバブル発生部13でマイクロナノバブルを発生させる。液面上のスカムはスカム処理部15で除去し、液面調整部16で気体溶解部12及び浮上分離兼滞留部14内の飼育水の液面を調整する。その後、還流部17により、ナノバブルを含有する飼育水を畜養水槽10へ戻す。浮上分離兼滞留部14はマイクロナノバブルのうち、大径域のバブルにより飼育水中の水産物由来の汚物を浮上分離するとともに、マイクロナノバブルのうち、小径域のバブルを所定時間滞留させることで、ナノバブル化する。【選択図】図1
