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Uporaba alternativnih senzoričnih metod profiliranja za vino malvazija
ID Einspieler, Michael (Author), ID Košmerl, Tatjana (Mentor) More about this mentor... This link opens in a new window

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Abstract
Opisna analiza je najbolj izpopolnjena metoda za senzorično ocenjevanje vin. Vendar se zaradi dolgotrajnega postopka šolanja ter posledično časovno in cenovno bolj potratne analize v določenih primerih nadomešča z alternativnimi metodami.. Za naš poskus smo uporabili metodi Označi vse, kar ustreza ali CATA ter Hitro profiliranje ali Flash profile. Dodatno smo uporabili tudi 9-točkovno hedonsko lestvico za ugotavljanje všečnosti vzorcev. Senzorično analizo smo izvedli z 12 nešolanimi preskuševalci. Ocenjevali so pet vzorcev sortnega vina malvazija, letnika 2018. Vsi vzorci so bili nefiltrirani in nestabilizirani. Razlikovali so se po dodatku hranil za kvasovke med pridelavo. Preskuševalcem smo za zagotovitev nepristranskosti podali informacije zgolj o sorti in letniku vina. Najpogosteje uporabljeni opisniki pri metodi Hitro profiliranje so bili kislina, po marelici, po citrusih, alkohol ter po oreških. Pri metodi CATA so preskuševalci v največji meri zaznavali opisnike po jabolkih, po lešnikih/orehih, po medu, srednje intenzivna aroma, o citrusih ter po marelici. Največje število posameznih zaznanih opisnikov smo zabeležili pri metodi CATA, kjer so preskuševalci zgoraj omenjene opisnike skupno zaznali od 14 do 28-krat. Rezultati se skladajo z običajnimi senzoričnimi lastnostmi vina sorte malvazija. Uporabljeni senzorični opisniki se med metodama CATA in Hitro profiliranje v manjši meri ujemajo, pri določenih opisnikih smo ugotovili povezave med pogostostjo uporabe opisnika pri metodi CATA in označeno intenzivnostjo pri metodi Hitro profiliranje.

Language:Slovenian
Keywords:senzorična analiza, metoda Označi vse, kar ustreza, metoda Hitro profiliranje, 9-točkovna hedonska lestvica, senzorično ocenjevanje, preskuševalci, mlado vino, malvazija, senzorične lastnosti
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Publisher:[M. Einspieler]
Year:2020
PID:20.500.12556/RUL-119049 This link opens in a new window
UDC:543.92:663.2
COBISS.SI-ID:27006979 This link opens in a new window
Publication date in RUL:02.09.2020
Views:1846
Downloads:221
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Secondary language

Language:English
Title:Use of alternative sensory profiling methods for Malvasia wine
Abstract:
Descriptive analysis is the most perfected method for wine sensory analysis. Although, due to the long-lasting process of training and consequently a longer and more expensive analysis, new alternative methods are being enforced. For our analysis we used Flash profile and “Check all that apply” (CATA) method. Additionally, 9-point hedonic scale was used to assess the liking of the samples. The sensory analysis was conducted with 12 untrained assessors. They assessed five samples of Malvasia wine, vintage 2018. All the samples were unfiltered and unstabilized. They differed in the addition of yeast nutrients during production. To prevent bias, only information about grape variety and vintage was given to the assessors. The most often used descriptors with Flash profile method were acidity, apricot and citrus aroma, alcohol and nutty aroma. With CATA, descriptors like apple, hazelnut/walnut aroma, honey, medium intense aroma, citrus and apricot aroma were used more often. CATA method produced a larger number of chosen individual descriptors, where the above-mentioned descriptors recorded from 14 to 28 total choices. The results comply with the known sensorial characteristics of Malvasia wine. The descriptors in both methods match in a lesser extent. In certain descriptors, relations between the frequency of descriptor choice in CATA method and the intensity in Flash profile method were found.

Keywords:sensory analysis, “Check all that apply”, Flash profile, 9-point hedonic scale, sensory evaluation, assessors, young wine, Malvasia, sensory properties

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