Discovery of Polyhydroxyalkyl Pyrazine Generation upon Coffee Roasting by In-Bean Labeling Experiments

Autor: Luigi Poisson, Stefan Spreng, Matthieu Chaumonteuil, Ania Schaerer, Frédéric Mestdagh, Tomas Davidek

Publikováno v: Journal of agricultural and food chemistry. 69(23)

The major non-volatile reaction products formed from free amino acids during the early stage of coffee roasting were investigated using biomimetic in-bean experiments with labeled and unlabeled free amino acids. Comprehensive untargeted screening by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f145e49bc9307ccedb2e5adffbe31c6e
https://pubmed.ncbi.nlm.nih.gov/34097401

Structure–Pungency Relationships and TRP Channel Activation of Drimane Sesquiterpenes in Tasmanian Pepper (Tasmannia lanceolata)

Autor: David Andersson, Stuart Bevan, Stefan Spreng, Klaus Mathie, Thomas Hofmann, Corinna Dawid, Johanna Lainer

Publikováno v: Mathie, K, Lainer, J, Spreng, S, Dawid, C, Andersson, D A, Bevan, S J & Hofman, T 2017, ' Structure-Pungency Relationships and TRP Channel Activation of Drimane Sesquiterpenes in Tasmanian Pepper (Tasmannia lanceolata) ', JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, vol. 65, no. 28, pp. 5700-5712 . https://doi.org/10.1021/acs.jafc.7b02356

Sensory-guided fractionation of extracts of Tasmanian pepper berries revealed 20 drimane sesquiterpens, among which polygodial, warburganal, and 1β-acetoxy-9-deoxy-isomuzigadial exhibited the lowest pungency threshold concentrations on the tongue su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90a694b61b54240080acfd6cf3bbf791
https://doi.org/10.1021/acs.jafc.7b02356

Activity-Guided Identification of in Vitro Antioxidants in Beer

Autor: Thomas Hofmann, Stefan Spreng

Publikováno v: Journal of agricultural and food chemistry. 66(3)

In order to locate the key antioxidants contributing to oxidative stability of beer, activity-guided fractionation in combination with the oxygen radical absorbance capacity (ORAC) assay, hydrogen peroxide scavenging (HPS) assay, and linoleic acid (L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f4b428b474d4e56a98c599b9174253d
https://pubmed.ncbi.nlm.nih.gov/29287473

Bürohochhaus im Palais Quartier - ein besonderes Bauprojekt in der Innenstadt von Frankfurt/Main

Autor: Stefan Spreng, Dietger Weischede, Martin Stumpf

Publikováno v: Bautechnik. 87:195-203

Dieser Beitrag geht auf die Planung und die Bauausfuhrung des Burohochhauses des “Palais Quartier” in der Innenstadt von Frankfurt am Main ein. Beschrieben werden die Konstruktion und der Bauablauf des 5-geschossigen Kellerkastens und der Abfangu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad14163987a1d8bddf4b9130106c7ae3
https://doi.org/10.1002/bate.201010015

HIGH QUALITY MODELLING OF HYDRO POWER PLANTS FOR RESTORATION STUDIES

Autor: C.N. Moser, T. Haase, Stefan Spreng, M. Hladky, Harald Weber

Publikováno v: IFAC Proceedings Volumes. 35:263-268

The verification of existing plans for network restoration after blackouts in European electrical energy systems becomes more and more important with the ongoing deregulation process. For this verification high quality computer models of the electric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b24bdb0e97382c003b15d231e6c679d0
https://doi.org/10.3182/20020721-6-es-1901.01195