| Otkriven novi okus-kalcij |
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| Gastro |
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Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 117 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 245 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 249 Warning: strftime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 250 Srijeda, 19 Studeni 2008 00:00 |
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Svaki od pet dosad potvrđenih okusa ima svoju evolucijsku opravdanost: slatki i umami okus su nas vodili k hrani bogatoj šećerima, tj. energijom i hrani bogatoj proteinima. Gorak okus je upozoravao na potencijalnu opasnost od otrovnih biljnih spojeva. Za slani i gorki okus i okus kalcija nema ovako jednostavnih objašnjenja jer su oni privlačniji pri slabijim intenzitetima nego kad su previše izraženi, a još nije pronađeno adekvatno objašnjenje čemu bi poslužio osjet okusa za kalcij.
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Nekad se smatralo da postoje četiri glavna okusa, a onda se popisu pridružio umami – okus prisutan u soja sosu, parmezanu ili rajčici. Genetičari su kod miševa pronašli receptore za okus kalcija i vjeruju da istu sposobnost imaju i ljudi. Neke osobe navodno mogu prepoznati i okus kalcija. Znanstvenici smatraju da je evolucija opremila naše okusne pupoljke sofisticiranim sustavima za detekciju šest, sedam ili više različitih okusa. Bolje razlikovanje okusa je našim precima omogućavalo bolje rezultate u traženju prikladne hrane.
