can you substitute celery salt for celery powder? If so what is the ratio.
celery is marked fresh
hypotonic means dilute, hypertonic means concentrated. If celery becomes turgid in the fresh water then it is hypertonic to fresh water but hypotonic to sodium solution.
Celery powder is more potent in celery flavor than celery salt. You will have to use more of the former to get the same flavor as the ladder. The result will make a very salty dish, because celery salt is almost as salty as table salt.
Saltwater (a hypertonic solution) with the celery cells (a hypotonic solution) causes a concentration gradient where the water from the celery will escape into the hypertonic solution, shrinking the celery in a process known as plasmolysis.
hypertonic to fresh water but hypotonic to the salt solution
yes, celery salt is typically made from the seed mixed with (sea) salt, you could technically dry the celery stalk and mince it and mix it with salt as well, but what they sell in the stores is typically the seed which imparts the similar slightly bitter celery flavor as the stalk (the flavor coming from the oil in the seeds).
Most likely the solution is water and salt. The salt in the water causes the celery to pull water out of itself to try and even out the salt to water concentration. This causes the celery to wilt.
The texture of celery salt is completely different from that of celery stalk. Your tuna salad needs the stalk, finely chopped, to give it a more complex texture.
Celery salt doesn't have any "magical powers;" all it imparts to a dish is its flavor. So if you don't have any celery salt, regular salt can be used. If you want additional flavor, seasoned salt or other spices can be used.
I don't know if there is a "real" substitute equation for it. But when making the meal, maybe if you use celery salt instead of the regular salt that you would have added, that would beOK.Otherwise you are going to have a dish that is too salty to eat. It isn't a substitute. It also adds a lot of nitrates to the dish.
Pure celery salt contains finely ground salt and celery seed. There shoud be no wheat gluten in it.