Results 51 to 60 of about 55,898 (294)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Beer Aroma Compounds: Key Odorants, Off-Flavour Compounds and Improvement Proposals

Foods
Beer aroma is a critical quality attribute shaped by volatile compounds from malt, hops, and yeast metabolism; however, the appearance of off-flavours can compromise it. This review identifies and describes the main aroma-active compounds that define the
Corina Maria Șutea, Elena Mudura, Carmen Rodica Pop, Liana Claudia Salanță, Anca Corina Fărcaș, Petruț Cristian Balaș, Emese Gal, Elisabeta-Irina Geană, Haifeng Zhao, Teodora Emilia Coldea   +9 more
doaj   +1 more source

GC-Recomposition-Olfactometry (GC-R) and multivariate study of three terpenoid compounds in the aroma profile of Angostura bitters. [PDF]

, 2019
Foods and beverage aroma results from multicomponent mixtures of volatile compounds present in the food that interact with olfactory receptors and produce a perceptual response in the brain.
Ebeler, Susan E, Heymann, Hildegarde, Hjelmeland, Anna K, Johnson, Arielle J   +3 more
core  

Fruit volatile analysis using an electronic nose. [PDF]

, 2012
Numerous and diverse physiological changes occur during fruit ripening, including the development of a specific volatile blend that characterizes fruit aroma.
Ebeler, Susan E, Lloyd, Nathan W, Vallone, Simona, Zakharov, Florence   +3 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Aroma-active secondary oxidation products of butter [PDF]

, 2007
Butter contains vitamins, minerals and unsaturated lipids, such as polyunsaturated fatty acids (PUFA) and conjugated linoleic acids (CLAs). However the oxidative stability and consequently the shelf-life of milk products are inversely correlated with ...
Escher, Felix, Mallia, Silvia, Rehberger, Brita, Schlichtherle-Cerny, Hedwig   +3 more
core  

Ionization effects on the partitioning behavior of food and beverage aroma compounds between aqueous phases and air and organic matrices [PDF]

, 2011
Aroma compounds in the Flavornet database were screened for ionizable functional groups such as carboxylic acids, aliphatic and aromatic amines, phenols, alcohols, and thiols.
Kaya Forest, Sierra Rayne
core   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Characterization of key aroma-active compounds in different types of Douchi based on molecular sensory science approaches

Food Chemistry: X
To attain the differences in the flavor profile of Douchi, the key aroma-active compounds of three types of Douchi were investigated. The “Sauce-like”, “Smoky”, “Nutty”, “Roast”, “Caramel”, and “Flower” of Douchi were favored by customers.
Ziqian Wu, Jin Chao, Hui Tang, Tengxia Liu, Liwen Jiang, Yang Liu   +5 more
doaj   +1 more source