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Showing 1 to 6 of 6 for “"Methoxypyrazine"”.
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Factors affecting the levels of 3-isobutyl-2-methoxypyrazine and C6 compounds in Vitis vinifera L. Merlot.
… for fruit and wine green aromas, 3- isobutyl -2 -methoxypyrazine (IBMP) and C 6 compounds. In the first study, the concentration of IBMP and C6 compounds in fruit harvested from 69 commercial vineyards located in three distinctly different wine grape growing regions were measured at commercial …
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Methoxypyrazine removal in grape juice: Development of a removal system using odorant and pheromone binding proteins coupled with bentonite fining
… Beetles that infect vineyards can secrete alkyl-methoxypyrazines when they are processed with the grapes, resulting in wines containing a taint. The main methoxypyrazine associated with this taint is 3-isopropyl-2-methoxypyrazine (IPMP). The wines are described as having aroma and flavours of …
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Preparation and application of new sorptive polymers applied to wine with a focus on removal of 3-isobutyl-2-methoxypyrazine
… to help remove off-flavours including elevated methoxypyrazines (MPs) without affecting other wine components. Excessive MPs can lead to unbalanced aroma, yielding wines with strong vegetative and herbaceous notes that suppress the pleasant fruity and floral bouquets. Early harvest grapes to …
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Identification and characterization of potent odorants in selected beet root (Beta vulgaris) products
… to their very high odor potency. Three 3-alkyl-2-methoxypyrazines (isopropyl, sec-butyl, and isobutyl), as well as 1-octen-3-one, phenylacetic acid, and eugenol, were also identified at moderate odor potencies. To detect compounds that might have otherwise been lost during extraction or co-eluted …
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Investigation of New Zealand Sauvignon Blanc Wine Using Trained Sensory Panels
… also showed that Marlborough, NZ wines had more methoxypyrazine and thiol compounds. A consumer study (n=109) showed that New Zealanders significantly prefer New Zealand style Sauvignon blanc. The final part of this research focused on using trained panellists to explore the interactions between …
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Contribution à l'étude de métabolites secondaires d'Harmonia axyridis (Pallas) en relation avec la coloration de l'insecte
Ce travail a pour objectif l’étude de métabolites secondaires d’Harmonia axyridis (Pallas) (Coccinellidés) en relation avec la coloration de l’insecte. Dans ce but, deux méthodes analytiques originales de quantification de métabolites secondaires de cet insecte ont été mises au point en vue de …