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From fruity to minty to Zea mays everta - y , all smells can be classified as one of 10 types of aroma , scientists say .
perceptiveness , vision and hearing can be quantify , but a taxonomical description of smell has remained elusive . Now , researchers have used mathematics to name smell systematically and simplify them into 10 class : fragrant , woody / pitchy , fruity ( non - citrus ) , chemical , minty / red gum , sweet , popcorn , lemon , pungent and decayed .
Just as tastes fall into five different categories, smells can be classified into ten basic types.
" It ’s an assailable interrogation how many rudimentary types of odor caliber there are , " subject researcher Jason Castro of Bates College tell in a statement . " This is in striking demarcation to olfaction ’s ' sister sensation , ' taste , where we know that five basic quality seem to organize sensations , " Castro say . [ 8 Strange Things Scientists Have try out ]
Using statistic , the scientists fix which combinations of descriptors were the key ones – those used most often without being redundant . The technique was similar to compressing a digital file , which reduces its size without sacrificing utile entropy .
The analysis resulted in 10 canonical odor groups . Why 10 ? It could also have been nine or 11 , but 10 was the little number that still capture the interesting feature film of odour , Castro say .
The group is now apply their methods to a bank of chemical structures to prognosticate how each chemical will smell . Nobody has been able to make this form of prediction accurately , Castro suppose , and he expects perfume and fragrance company will take an pursuit in it .
The research was detailed Sept. 18 in the journalPLOS ONE .
