Use of ozone in production of II generation bioethanol and fodder yeast Zastosowanie ozonu w procesach produkcji bioetanolu II generacji i drożdży paszowych

2016 ◽  
Vol 1 (7) ◽  
pp. 107-112
Author(s):  
Piotr Dziugan
Keyword(s):  
Fodder Yeast

Evaluation Of Filter Cake Oil As Antifoam In Yeast Production. New Use For This By-Product Of The Sugarcane Derivatives Industry

2021 ◽  
Author(s):  
Indira Pérez Bermúdez ◽  
Arletis Cruz Llerena ◽  
Keyla Tortoló Cabañas ◽  
Manuel Díaz de los Ríos ◽  
Miguel Ángel Peña ◽  
...  
Keyword(s):  
Fermentation Process ◽  
Filter Cake ◽  
Reducing Sugar ◽  
Production Costs ◽  
Solubility Parameters ◽  
Knock Down ◽  
Knockdown Effect ◽  
Fodder Yeast ◽  
Effective Product

Abstract Purpuse: Fodder yeast is obtained in an aerobic fermentation process where foaming is a major problem to be solved. In this article, the antifoam property of crude and purified filter cake oil is evaluated in order to use this residual as an alternative to replace the import of commercial antifoam agents and to reduce the production costs of fodder yeastMethod: Knock down test and the comparisons with two commercial antifoam agents were done. Blackstrap molasses medium at 20 and 40 g/L of total reducing sugar was used. All products were studied in their pure form and commercial ones also in dilutions 1:2 and 1:5 v/v. Hansen's solubility parameters (HSPs) to analyze the affinity of each defoamer for yeast were determined.Results: It was obtained the crude and purified filter cake oil showed similar behavior to commercial defoamers with an immediate antifoam effect, removing between 40 and 60% of the initial foam at both sugar concentrations in the first 5 minutes. The regression model showed purified filter cake oil has the greatest knockdown effect (Ca = 55.85 and 74.32) and with greater foam suppression stability the commercial defoamer Quimifoam Máster (Cb = -0.69 and -1.38). Ra values obtained in HSPs test, indicated the affinity of defoamers to the medium. Conclusion: Purified filter cake oil is an effective product for its use as an antifoam with the best knock down effect for both concentrations of sugars in the medium. The determination of HSPs corroborates the effectiveness of this product to suppress foam.

scholarly journals Nutritional Value of Yarrowia Lipolytica Yeast and its Effect on Growth Performance Indicators n Piglets

2016 ◽  
Vol 16 (4) ◽  
pp. 1091-1100 ◽  
Author(s):  
Anna Czech ◽  
Aleksandra Smolczyk ◽  
Katarzyna Ognik ◽  
Martyna Kiesz
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Yarrowia Lipolytica ◽  
Performance Indicators ◽  
Nutritional Value ◽  
Essential Amino Acids ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Valuable Component ◽  
Fodder Yeast

Abstract Yarrowia lipolytica yeast can be a valuable component of feed compounds due to its high content of protein and essential amino acids, as well as minerals. The objective of the study was to verify the research hypothesis that Yarrowia lipolytica (YL) yeast, having a more valuable chemical composition than Saccharomyces cerevisiae (SC), can improve growth performance in piglets. An attempt was made to determine what proportion of YL yeast in a compound feed for piglets would produce measurable effects in terms of production and health. The experiment was carried out on 46-dayold piglets receiving experimental mixtures for 39 days. The piglets in the experimental groups were fed the same mixture as the control, but with 3% or 6% fodder yeast of the strain Yarrowia lipolytica A-101 in place of soybean meal. The YL fodder yeast had significantly higher content of alanine (by about 50%), lysine, isoleucine and tryptophan (over 30%), leucine, valine, glycine and glutamic acid (over 20%), and tyrosine (by about 17%) in comparison with SC yeast. Content of crude fat was three times higher than in SC yeast. YL yeast had significantly higher content of Na+, K+, Ca+2, Mn+2, S, Mg+2 and Zn+2 than SC, as well as significantly higher content of vitamins B2 and E. Yarrowia lipolytica fodder yeast introduced to compound feed in the amount of just 3% improved growth performance (an increase in daily weight gain and a decrease in feed conversion per kg weight gain). These results indicate that YL in the amount of 3% in compound feed can be successfully used in the diet of piglets in place of the commonly used SC.

Purification of carbon dioxide produced during the fermentative production of fodder yeast and ethyl alcohol by Saccharomyces cerevisiae

2007 ◽  
Vol 26 (1) ◽  
pp. 97-104
Author(s):  
Abou-Zeid A. Abou-Zeid ◽  
Yousef M. Shehata ◽  
Ahmad G. Madi ◽  
Adel El-Sherbiny ◽  
Ahmad A. El-Nagar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Saccharomyces Cerevisiae ◽  
Ethyl Alcohol ◽  
Fermentative Production ◽  
Fodder Yeast

scholarly journals Evaluating the Quality of Yeast Inoculum Used in Plants Producing Fodder Yeast Protein.

1978 ◽  
Vol 24 (7) ◽  
pp. 153-155
Author(s):  
L. ADÁMEK ◽  
M. RUT ◽  
F. ŠTROS
Keyword(s):  
Yeast Protein ◽  
Fodder Yeast ◽  
Yeast Inoculum

Enzymatic Refining of Unconventional Protein for Nutritional Purposes

1976 ◽  
Vol 39 (8) ◽  
pp. 521-525 ◽  
Author(s):  
WLODZIMIERZ BEDNARSKI ◽  
STEFAN POZNANSKI ◽  
LUCJAN JEDRYCHOWSKI ◽  
JACEK LEMAN ◽  
MIECZYSLAWA SZCZEPANIAK
Keyword(s):  
Nucleic Acids ◽  
Trichloroacetic Acid ◽  
Candida Utilis ◽  
Trypsin Inhibitors ◽  
Field Bean ◽  
Kluyveromyces Fragilis ◽  
Fodder Yeast ◽  
Bean Protein

Studies were made on the possibilities of refining protein from the fodder yeast, Candida utilis, from Kluyveromyces fragilis cells and from the field bean by enzymatic means using pepsin and papain, followed by the reverse synthesis of proteins from hydrolysates as treated with alpha-chymotrypsin. The yield of refined protein was about 75%, as measured by amounts of nitrogen substances precipitated in 15% trichloroacetic acid. The refined yeast proteins contained no nucleic acids, while field bean protein was free of trypsin inhibitors. The refined proteins appeared to be neutral in respect of flavor substances.

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