Eva Ortner

Dr. Eva Ortner


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2019 in Resources, Conservation and Recycling
Verified
Journal Article
Closed access
MSMiriam Strangl
Miriam Strangl
EOEva Ortner
Eva Ortner
ABAndrea Buettner
Andrea Buettner

1 July 2020 in Journal of Cleaner Production
Verified
Journal Article
Closed access
MSMiriam Strangl
Miriam Strangl
EOEva Ortner
Eva Ortner
TFTanja Fell
Tanja Fell
TGTanja Ginzinger
Tanja Ginzinger
ABAndrea Buettner
Andrea Buettner

19 October 2016 in Journal of Agricultural and Food Chemistry
Verified
Journal Article
Closed access
EOEva Ortner
Eva Ortner
MGMichael Granvogl
Michael Granvogl
PSPeter Schieberle
Peter Schieberle

1 March 2020 in Waste Management
Verified
Journal Article
Closed access
ACAndrea Cabanes
Andrea Cabanes
MSMiriam Strangl
Miriam Strangl
EOEva Ortner
Eva Ortner
AFANDRES FULLANA
ANDRES FULLANA
ABAndrea Buettner
Andrea Buettner

1 September 2020 in Waste Management
Verified
Journal Article
Closed access
KPKaren S. Prado
Karen S. Prado
MSMiriam Strangl
Miriam Strangl
SPSérgio R. Pereira
Sérgio R. Pereira
ATAdelchi R. Tiboni
Adelchi R. Tiboni
EOEva Ortner
Eva Ortner
ABAndrea Buettner
Andrea Buettner

27 June 2021 in Molecules
Verified
Journal Article
Open access
PDF file
NBNina Buck
Nina Buck
DWDaria Wohlt
Daria Wohlt
AWAnne Winter
Anne Winter
EOEva Ortner
Eva Ortner
Wet coffee processing generates a large amount of coffee pulp waste that is mostly disposed of in the processing units. To reduce this waste and the associated environmental burden, an alternative strategy would be to exploit the coffee pulp to produce a durable and stable consumable product. Accordingly, a puree produced from Robusta coffee pulp was investigated in relation to its physicochemical and sensory properties. After thermal and chemical stabilization, the obtained puree (pH 3.6) was found to exhibit a multimodal particle size distribution, shear-thinning behavior, and lower discoloration, as well as an antioxidant capacity of 87.9 µmolTE/gDM. The flavor of the puree was examined by sensory evaluation and the corresponding analyses of aroma-active volatile compounds, as determined using aroma extract dilution analyses (AEDA) and gas chromatography-mass spectrometry/olfactometry (GC-MS/O). The puree was characterized by dominant fruity (4.4), floral (3.4), citrusy (3.3) and hay-like (3.3) odor impressions. The aroma-active compounds were predominantly aldehydes, acids, and lactones, whereby (E)-β-damascenone, geraniol, 4-methylphenol, 3-hydroxy-4,5-dimethylfuran-2(5H)-one, and 4-hydroxy-3-methoxybenzaldehyde exhibited the highest flavor dilution (FD) factor (1024), thereby indicating their high impact on the overall aroma of the puree. This study demonstrates an approach to stabilize coffee pulp to produce a sweet, fruity puree with comparable physical properties to other fruit purees and that can be used as a new and versatile flavoring ingredient for various food applications.