scholarly journals Time saving selection of optimum yeast strains.

1979 ◽  
Vol 25 (1) ◽  
pp. 17-19
Author(s):  
A. KOCKOVÁ-KRATOCHVÍLOVÁ ◽  
E. SLÁVIKOVÁ
Keyword(s):  
Time Saving ◽  
Yeast Strains ◽  
Selection Of

Optimizing the selection process of yeast starter cultures by preselecting strains dominating spontaneous fermentations

2009 ◽  
Vol 55 (3) ◽  
pp. 326-332 ◽  
Author(s):  
Andrea Pulvirenti ◽  
Sandra Rainieri ◽  
Silvio Boveri ◽  
Paolo Giudici
Keyword(s):  
Selection Process ◽  
Starter Culture ◽  
Pilot Scale ◽  
Starter Cultures ◽  
Internal Transcribed Spacer Region ◽  
Time Saving ◽  
Yeast Strains ◽  
Spontaneous Fermentations ◽  
Wine Strain ◽  
Selection Of

We propose an efficient and time-saving strategy for starter culture selection. Our approach is based on the accomplishment of 3 phases: (i) the selection of yeast strains dominating spontaneous fermentations, (ii) the selection among the dominant strains of those showing the best technological characteristics, and (iii) the final selection among good technological strains of those showing the desired qualitative traits. We applied this approach to wine fermentations, even though the same strategy has the potential to be employed for the selection of any type of starter culture. We isolated and identified yeast strains at the mid- and final stages of 6 spontaneous fermentations carried out in 3 different Spanish wineries. We identified all strains as Saccharomyces cerevisiae by restriction fragment length polymorphism of the ribosomal DNA internal transcribed spacer region, and subsequently distinguished each strain by analyzing the polymorphism of the inter-δ regions. Strains that were detected both at the mid- and final stages of the fermentation were considered dominant. Four dominant strains were finally selected and tested in pilot-scale fermentation, and their performance was compared with that of a commercial wine strain. All dominant strains showed good fitness and resulted suitable to be employed as starter cultures. One of the dominant strains isolated in this study is currently commercialized.

Evaluation of Progressive Changes in Elastomer Properties during Vulcanization

1961 ◽  
Vol 34 (3) ◽  
pp. 777-789
Author(s):  
W. E. Claxton ◽  
F. S. Conant ◽  
J. W. Liska
Keyword(s):  
Induction Time ◽  
Tensile Modulus ◽  
Compression Modulus ◽  
Test Methods ◽  
Screening Tests ◽  
Time Saving ◽  
Physical Test ◽  
Polymeric Compounds ◽  
Cure Time ◽  
Selection Of

Abstract An apparatus and method are described for evaluating state of cure, optimum cure time, rate of cure, induction time for cure, scorch time, induction time for reversion, reversion rate and degree of reversion of elastomeric compounds. Coincident with these determinations vulcanizate specimens are prepared on which more conventional physical test data may be obtained; e.g., compression modulus, compression set, hardness, specific gravity, tensile modulus and elongation. In essence, the method described provides a progressive measure of modulus change during cure or reversion through the change in deformation of a periodically loaded plunger, one end of which is embedded into the specimen. Typical results are given which show application of the apparatus to screening tests, millroom control, reversion studies and to compounds which are too stiff for conventional test methods. Demonstrated advantages for the apparatus include time saving, stock saving and better cure information on a wider range of polymeric compounds than is obtainable from tensile test methods. In a laboratory where a large selection of test instruments is not feasible, the versatility of the apparatus described should prove very advantageous.

scholarly journals The Effects of Using a Hypertext Tool for Selecting Design Guidelines

1992 ◽  
Vol 36 (4) ◽  
pp. 428-432 ◽  
Author(s):  
Jeffrey A. Fox
Keyword(s):  
User Interface ◽  
Interface Design ◽  
Selection Process ◽  
User Interface Design ◽  
Design Guidelines ◽  
Complex Task ◽  
Additional Time ◽  
Time Saving ◽  
Selection Of

Designing a User-System Interface (USI) is a complex task that has been approached in many ways. One approach has been to use USI design guidelines to help improve the quality and consistency of USIs. To be effective, a general set of guidelines must be tailored to a specific application. This study investigated the effects of using a hypertext design aid (DRUID, Dynamic Rules for User Interface Design) for the selection of USI guidelines by both experienced and novice guideline users. Results indicate that, in general, the participants performed their tasks as well with DRUID as with the book. However, the participants accessed the material differently for each medium and they selected more guidelines that were relevant when using the paper book. Subjectively, the software was preferred because it provided assistance in the selection process and provided additional time-saving design aids not available in the book.

scholarly journals Characterization and selection of functional yeast strains during sourdough fermentation of different cereal wholegrain flours

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Michela Palla ◽  
Massimo Blandino ◽  
Arianna Grassi ◽  
Debora Giordano ◽  
Cristina Sgherri ◽  
...  
Keyword(s):  
Yeast Strains ◽  
Selection Of

scholarly journals Growth Kinetics for the Selection of Yeast Strains for Fermented Beverages

2017 ◽  
Author(s):  
Dalia E. Miranda Castilleja ◽  
Jesús A. Aldrete Tapia ◽  
Sofía M. Arvizu Medrano ◽  
Montserrat Hernández Iturriaga ◽  
Lourdes Soto Muñoz ◽  
...  
Keyword(s):  
Growth Kinetics ◽  
Fermented Beverages ◽  
Yeast Strains ◽  
Selection Of

Selection of aroma compounds for the differentiation of wines obtained by fermenting musts with starter cultures of commercial yeast strains

2016 ◽  
Vol 197 ◽  
pp. 373-381 ◽  
Author(s):  
Florin Vararu ◽  
Jaime Moreno-García ◽  
Cătălin-Ioan Zamfir ◽  
Valeriu V. Cotea ◽  
Juan Moreno
Keyword(s):  
Aroma Compounds ◽  
Starter Cultures ◽  
Yeast Strains ◽  
Commercial Yeast ◽  
Selection Of

scholarly journals Selection of non-Saccharomyces yeast strains for reducing alcohol levels in wine by sugar respiration

2014 ◽  
Vol 181 ◽  
pp. 85-91 ◽  
Author(s):  
Manuel Quirós ◽  
Virginia Rojas ◽  
Ramon Gonzalez ◽  
Pilar Morales
Keyword(s):  
Yeast Strains ◽  
Saccharomyces Yeast ◽  
Selection Of

scholarly journals Selection of yeast strains for bioethanol production from UK seaweeds

2015 ◽  
Vol 28 (2) ◽  
pp. 1427-1441 ◽  
Author(s):  
Emily T. Kostas ◽  
Daniel A. White ◽  
Chenyu Du ◽  
David J. Cook
Keyword(s):  
Bioethanol Production ◽  
Yeast Strains ◽  
Selection Of

scholarly journals Isolation, characterisation, and selection of wine yeast strains in Etyek-Buda wine district, Hungary

2014 ◽  
Vol 43 (3) ◽  
pp. 489-500 ◽  
Author(s):  
O. Csernus ◽  
A. Pomázi ◽  
I. Magyar
Keyword(s):  
Wine Yeast ◽  
Yeast Strains ◽  
Selection Of
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