scholarly journals CRECIMIENTO Y CARACTERÍSTICAS FERMENTATIVAS DE Kluyveromyces marxianus EN MATRICES DERIVADAS DE LACTOSUERO

2021 ◽  
Vol 19 (suplemento) ◽  
Author(s):  
G A Gómez
Keyword(s):  
Organic Matter ◽  
Carbon Source ◽  
Ethanol Production ◽  
Kluyveromyces Marxianus ◽  
Alcoholic Beverages ◽  
Growth Media ◽  
Distilled Water ◽  
Milk Whey ◽  
Whey Powder ◽  
Milk Permeate

Milk whey has a high content of organic matter; therefore, uncontrolled discharge can cause environmental problems. An alternative for whey utilization is the production of fermented alcoholic beverages by means of the yeast Kluyveromyces marxianus, able to use lactose as a carbon source. Four different liquid growth media were prepared: whey powder (SP) and demineralized whey powder (SPD) (65 g/L) dissolved in sterilized distilled water; SPCal, similar to SP in composition, but sterilized and centrifuged to remove proteins, and milk permeate (PER). All media were fermented by 24 hours at 30°C. Samples were taken every 8 hours, for pH, biomass, ethanol and lactose determination. K. marxianus (LFIQK1 strain) growth was similar in SP, SPD and SP Cal (biomass between 2 – 3 g/L) and lower in PER. Moderate pH decline was observed, final values being between 4,7 and 5,4. Significant lactose consumption was observed in every growth media, with final values around 12 g/L and good ethanol production, especially for SP, SPD, and PER mediums (17,0±0,7; 17,6±0,5; 16,3±0,2 g/L respectively). These results are encouraging for the production of alcoholic beverages from the studied media using K. marxianus as the fermentation agent.

Pre-Precipitation Facilitates Nitrogen Removal without Tank Expansion

1990 ◽  
Vol 22 (7-8) ◽  
pp. 85-92 ◽  
Author(s):  
Ingemar Karlsson ◽  
Gunnar Smith
Keyword(s):  
Waste Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Carbon Source ◽  
Nitrogen Removal ◽  
Waste Water Treatment ◽  
Chemical Precipitation ◽  
Sewage Water ◽  
Laboratory Studies ◽  
Denitrification Process

Chemically coagulated sewage water gives an effluent low in both suspended matter and organics. To use chemical precipitation as the first step in waste water treatment improves nitrification in the following biological stage. The precipitated sludge contains 75% of the organic matter in the sewage and can by hydrolysis be converted to readily degradable organic matter, which presents a valuable carbon source for the denitrification process. This paper will review experiences from full-scale applications as well as pilot-plant and laboratory studies.

Characterisation of production of organic rich topsoil from sludge

2000 ◽  
Vol 42 (9) ◽  
pp. 195-201 ◽  
Author(s):  
P. Andreasen ◽  
P. B. Mortensen ◽  
A. Stubsgaard ◽  
B. Langdahl
Keyword(s):  
Organic Matter ◽  
Oxygen Consumption ◽  
Oxygen Transport ◽  
Mineral Soil ◽  
Climatic Conditions ◽  
Growth Media ◽  
Soil Mixture ◽  
Water Suspension ◽  
Aerobic Process ◽  
Stable Product

The stabilisation of a sludge-mineral soil mixture and a method to evaluate the state of stabilisation were investigated. The organic matter and nitrogen content are reduced up to 50% during a stabilisation process of three months under Danish climatic conditions. The stabilisation was shown to be an aerobic process limited by oxygen transport within the mixture. The degree of stabilisation was evaluated by oxygen consumption in a water suspension and the results showed that a stable product was achieved when oxygen consumption was stable and in the level of natural occurring aerobic soils (0.1 mgO2/(g DS*hr). The study thereby demonstrates that a stability of a growth media can be controlled by the oxygen consumption method tested.

scholarly journals Biodegradation of erythrosin B dye by paramorphic Neurospora crassa 74A

2010 ◽  
Vol 53 (2) ◽  
pp. 473-480 ◽  
Author(s):  
Gisele Jane de Jesus ◽  
Carlos Renato Corso ◽  
Adriana de Campos ◽  
Sandra Mara Martins Franchetti
Keyword(s):  
Carbon Source ◽  
Neurospora Crassa ◽  
Fungal Biomass ◽  
Fine Powder ◽  
Distilled Water ◽  
Erythrosin B ◽  
Fungus Culture ◽  
Washing Process

The present work used paramorphic forms of Neurospora crassa 74A to remove erythrosine. The fungus culture was grown in medium containing the dye, as only carbon source for 2 and 90 h of interaction. A washing process using distilled water isolated the cellular mass mycelia was dried for 12 h at 105ºC and transformed in fine powder and analyzed in FTIR. The supernatant was analyzed through spectrophotometer UV-Vis and FTIR. Significant differences in the spectrum of UV-VIS and FTIR were observed between the control and the supernatant and between wall control and the walls colored by red, in FTIR for 2 and 90 h. Some significant bands were modified, suggesting the possibility of enzymatic biodegradation in proportion to the time of contact between the dye and fungal biomass.

scholarly journals EFFECT OF FOLIAR APPLICATION OF ORGANIC EXTRACT AND HAMIC ACID APPLICATION ON STRAWBERY PRODACTION

2016 ◽  
Vol 47 (3) ◽  
Author(s):  
AL- Karawi & Al-Rawi
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Foliar Application ◽  
Fruit Weight ◽  
Distilled Water ◽  
College Of Agriculture ◽  
Organic Extract ◽  
Four Levels ◽  
Effect On Yield ◽  
Spraying Plants

This study was carried out in greenhouse Date to palm Research units, College of Agriculture, University of Baghdad ( Abu Ghraib ) , seasons 2013 and 2014 to investigate the effect of foliar application organic matter extract and humic acid and their interactions on yield of strawberry plants . The study include 12 treatments , to spray strawberry's plant with four levels of organic matter spray included distilled water only (T0) , (1) volume of organic matter extract to volume of distilled water ( 1:1)  (T1) , (2) volume of organic matter extract to volume of distilled water (2:1 ) (T2 ) and (3) volume of organic matter extract volume of distilled water (3:1) (T3), the second factor was three concentrations of humifert-ultra , 0( H0 ) , 2.5 ml.L-1 ( H2.5) and 5 ml.L-1  ( H5 ) to the soil . Factorial Experiment carried out according to RCBD with  three replications , averages compared by LSD test at the level of 5% probability. Results that have been obtained is that spraying plants extract organic matter led to a significant increase in the number of flowers and the percentage of the contract and the number of fruits and had no significant effect on yield of plant. addition of humic acid led to a significant increase in the number of flowers and the percentage of fruit set and the number of fruits and fruit weight and yield of plant .

scholarly journals Ethanol Production from Sugarcane Leaves by Kluyveromyces marxianus S1.17, a Genome-Shuffling Mediated Transformant

BioResources ◽  
2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Rumpa Jutakanoke ◽  
Vasana Tolieng ◽  
Somboon Tanasupawat ◽  
Ancharida Akaracharanya
Keyword(s):  
Ethanol Production ◽  
Kluyveromyces Marxianus ◽  
Genome Shuffling ◽  
A Genome
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