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Propyl benzoate has a nutty odor and sweet fruity or nut-like taste, and as such, it is used as a synthetic flavoring agent in foods. It also has antimicrobial properties and is used as a preservative in cosmetics. It occurs naturally in the sweet cherry and in clove stems, as well as in butter. [2] [3]
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Pentyl pentanoate (C 4 H 9 COOC 5 H 11) is an ester used in dilute solution to replicate the scent or flavour of apple, and sometimes pineapple. [1] It is referred to as pentyl valerate or amyl pentanoate using classical nomenclature. it can be used for a variety of chemical uses, such as in the production of flavoured products, like sweets.
The loss of smell and taste has long been associated with COVID-19 — it was one of the earliest symptoms associated with the virus that differentiated it from other illnesses.
One method used to diagnose parosmia is the University of Pennsylvania Smell Identification Test (UPSIT). "Sniffin' Sticks" are another diagnostic method. [11] These techniques can help deduce whether a specific case of parosmia can be attributed to just one stimulating odor or if there is a group of odors that will elicit the displaced smell.
Diagnosing dysosmia precisely can be difficult due to the variety of causes and symptoms. Often, patients may be unsure whether or not they are having issues with smell or taste specifically. It is important to identify whether the distortion applies to an inhaled odorant or if an odor exists without the stimulus.
The patient would report phantosmia symptoms, but would correctly identify known odors and would claim to have no symptoms of smell loss. She had no history of epilepsy, and her electroencephalographic results were normal. Later on, while the symptoms of phantosmia were decreasing, she developed severe symptoms of Parkinson disease.
Amyl acetate (pentyl acetate) is an organic compound and an ester with the chemical formula CH 3 COO[CH 2] 4 CH 3 and the molecular weight 130.19 g/mol. It is colorless and has a scent similar to bananas [3] [4] and apples. [5]