Quality Assessment of Strawberries (Fragaria Species)

…, C Darbellay, JL Luisier, JC Villettaz… - Journal of Agricultural …, 2003 - ACS Publications
Several cultivars of strawberries (Fragaria sp.), grown under different conditions, were analyzed
by both sensory and instrumental methods. The overall appreciation, as expressed by …

Development of a model for quality assessment of tomatoes and apricots

…, C Darbellay, JL Luisier, JC Villettaz… - LWT-Food Science and …, 2003 - Elsevier
The quality of tomato and apricot cultivars was assessed by sensory evaluation, consumer
tests and instrumental methods. The overall sensory appreciation of tomatoes was mainly …

Changes in flavour and texture during the ripening of strawberries

…, C Darbellay, JL Luisier, JC Villettaz… - … Food Research and …, 2004 - Springer
The amount of total volatile compounds, total acidity, total sugar content (degrees Brix) and
fruit firmness were used to characterize the degree of ripeness of three strawberry varieties (…

Exocellular polysaccharides from Saccharomyces in Wine

…, D Dubourdieu, JC Villettaz - Journal of the Science of …, 1987 - Wiley Online Library
The exocellular polysaccharides released by commercial dried Saccharomyces yeasts in
wine and fermented media have been studied during alcoholic fermentation and storage over …

The use of a beta glucanase as an enzyme in wine clarification and filtration

JC Villettaz, D Steiner, H Trogus - American journal of …, 1984 - Am Soc Enol Viticulture
Materials and Methods Enzyme preparation: The enzyme preparation used for these
experiments was a beta glucanase called Glucanex (NOVO Ferment (Switzerland), Ltd., Basle, …

Investigations of an industrial β-D-glucanase from Trichoderma harzianum

D Dubourdieu, C Desplanques, JC Villettaz… - Carbohydrate …, 1985 - Elsevier
A commercial enzyme preparation of fungal origin (Trichoderma harzianum) contains a
mixture of several β-d-glucanases. Ion-exchange chromatography, gel filtration, and …

A new method for the rapid determination of volatile substances: the SPME-direct method: Part II. Determination of the freshness of fish

…, A Hayman, E Reynard, JL Luisier, JC Villettaz - Sensors and Actuators B …, 2001 - Elsevier
A rapid method for determining the freshness of the harvested fish is presented. The volatile
amines, which are liberated during the storage of the fish have been quantified using a …

Structural investigations of an arabinan from grape juice

JC Villettaz, R Amado, H Neukom - Carbohydrate Polymers, 1981 - Elsevier
An arabinan has been isolated from grape juice and purified by chromatography on
polyamide and repeated ethanol precipitations. The structural identity of the arabinan was …

Dégradation enzymatique du glucane de Botrytis cinerea. Application à l'amélioration de la clarification des vins issus de raisins pourris

D Dubourdieu, JC Villettaz, C Desplanques, RG Pascal - Œno One, 1981 - oeno-one.eu
Botrytis cinerea secrète dans les baies de raisins parasitées un β-glucane responsable des
difficultés de clarification des vins issus de vendanges pourries.

A new method for the rapid determination of volatile substances: The SPME-direct method: Part I: Apparatus and working conditions

…, A Fornage, JL Luisier, P Pichler, JC Villettaz - Sensors and Actuators B …, 2001 - Elsevier
A new method for the measurement of volatile substances constituting the odors of food or
other material is presented. The apparatus developed consists of a standard injector, as used …