@acspucp
Enlaces útiles de la ADEEQ y del ACS Student Chapter de la PUCP.
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Conoce la American Chemical Society (ACS)
Conoce la American Chemical Society (ACS)
Guía de beneficios de la Membresía ACS
Guía de beneficios de la Membresía ACS
E-Aditivos: Guía de aditivos para limentos
E-Aditivos: Guía de aditivos para limentos
Lista interactiva con los aditivos que se utilizan en la industria de la alimentación clasificados por su Número E y con indicadores tanto de su origen como de si son peligrosos, nocivos, etc. Incluye especialmente los cancerígenos, los bioperjudiciales y aquellos que entrañan un grave riesgo para la salud.
Lectura ACS: "Carvone, molecule of the week"
Lectura ACS: "Carvone, molecule of the week"
Artículo: "The Enantioselectivity of Odor Sensation"
Artículo: "The Enantioselectivity of Odor Sensation"
This article discusses seven chiral odorants that demonstrate the enantioselectivity of odor sensation: carvone, Celery Ketone, camphor, Florhydral, 3-methyl-3-sulfanylhexan-1-ol, muscone, and methyl jasmonate. After a general introduction of the odorant−receptor interaction and the combinatorial code of olfaction, the olfactory properties of the enantiomers of these seven odorants, their occurrence in nature, industrial production, and application in perfumery are discussed. Finally, practical aspects of chirality and odor sensation are set forth and these odorants are proposed as examples for introductory courses on stereochemistry, natural products, or bioorganic chemistry.
Vídeo: El mito del limoneno
Vídeo: El mito del limoneno
So we really messed up on this one. Even we can have a difficult time with R and S Limonene! We appreciate your patience with this video and here it is for t...
Artículo: "Limonene in Citrus: A String of Unchecked Literature Citings?"
Artículo: "Limonene in Citrus: A String of Unchecked Literature Citings?"
In organic chemistry textbooks (S)-(−)-limonene, (−)-limonene or l-limonene, is often given credit for the smell of lemons, while the R-analogue, (+)-limonene or d-limonene, is credited with that of oranges. Results from two odor tests revealed that few persons in the test associated (R)-(+)-limonene with oranges and (S)-(−)-limonene with lemons, when these compounds were of analytical grade. Quality and composition of standard compounds and mixtures used in these olfactory tests were corroborated by gas chromatographic analyses. The statement of (R)-(+)-limonene being responsible for orange odor and (S)-(−)-limonene for the lemon odor apparently stems from an often quoted article from 1971. This investigation was a lesson for both our students and us. Textbooks in organic chemistry that still promote (R)-(+)- and (S)-(−)-limonene as, respectively, the “orange” and “lemon” smell ingredient should be corrected.
¡Descubre el Student Leadership Award!
¡Descubre el Student Leadership Award!
An annual invitation-only conference where ACS leaders learn management and leadership skills to enable them to be successful leaders within the ACS.
I. M. Kolthoff Award
I. M. Kolthoff Award
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