scholarly journals Potential of thin stillage as a low-cost nutrient source for direct cellulose fermentation by Clostridium thermocellum

AIMS Energy ◽  
2015 ◽  
Vol 3 (4) ◽  
pp. 711-727 ◽  
Author(s):  
Rumana Islam ◽  
◽  
Charushi Panditharatne ◽  
John Schellenberg ◽  
Richard Sparling ◽  
...  
Keyword(s):  
Clostridium Thermocellum ◽  
Low Cost ◽  
Thin Stillage ◽  
Nutrient Source ◽  
Cellulose Fermentation

Levan production from sucrose using chicken feather peptone as a low cost supplemental nutrient source

2020 ◽  
Vol 227 ◽  
pp. 115361 ◽  
Author(s):  
Bhuvaneshwari Veerapandian ◽  
Saravanan Ramiah Shanmugam ◽  
Srivathsan Varadhan ◽  
Kartik Kumar Sarwareddy ◽  
Krishna Priya Mani ◽  
...  
Keyword(s):  
Low Cost ◽  
Chicken Feather ◽  
Nutrient Source

scholarly journals Macrocystis pyrifera Extract Residual as Nutrient Source for the Production of Sophorolipids Compounds by Marine Yeast Rhodotorula rubra

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2355
Author(s):  
Allison Leyton ◽  
Michael Araya ◽  
Fadia Tala ◽  
Liset Flores ◽  
María Elena Lienqueo ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Food Industry ◽  
Liquid Fraction ◽  
Low Cost ◽  
Brown Seaweed ◽  
Macrocystis Pyrifera ◽  
Antimicrobial Compounds ◽  
Nutrient Source ◽  
Marine Yeast ◽  
Rhodotorula Rubra

Seaweed processing generates liquid fraction residual that could be used as a low-cost nutrient source for microbial production of metabolites. The Rhodotorula strain is able to produce antimicrobial compounds known as sophorolipids. Our aim was to evaluate sophorolipid production, with antibacterial activity, by marine Rhodotorula rubra using liquid fraction residual (LFR) from the brown seaweed Macrocystis pyrifera as the nutrient source. LFR having a composition of 32% w/w carbohydrate, 1% w/w lipids, 15% w/w protein and 52% w/w ash. The best culture condition for sophorolipid production was LFR 40% v/v, without yeast extract, artificial seawater 80% v/v at 15 °C by 3 growth days, with the antibacterial activity of 24.4 ± 3.1 % on Escherichia coli and 21.1 ± 3.8 % on Staphylococcus aureus. It was possible to identify mono-acetylated acidic and methyl ester acidic sophorolipid. These compounds possess potential as pathogen controllers for application in the food industry.

Optimization of Immobilized Microorganisms Technology to Cr (VI) in Wastewater

2015 ◽  
Vol 1092-1093 ◽  
pp. 886-891
Author(s):  
Yan Xu ◽  
Xiao Ming Chen ◽  
Chao Wang ◽  
Chen Ruan ◽  
Xiao Ling Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
High Efficiency ◽  
Removal Rate ◽  
Low Cost ◽  
Nutrient Source ◽  
Removal Capacity ◽  
Significant Difference ◽  
Immobilized Microorganisms ◽  
Immobilized Microorganism

In order to establish a low cost and high efficiency immobilized microorganism system to treat Cr (VI) wastewater, the effects to removal capacity to Cr (VI) of microbe strain, additives and medium were investigated. These strains were immobilized with SA (sodium alginate) by immobilized microorganism technology combined with three additives CNTs (carbon nanotubes), activated carbon, straw and nutrient source, respectively. The results showed that three kinds of additives could improve the removal effect to Cr (VI), and the removal rate up to 30% when Cr (VI) concentration was 10mg/L. There was not a significant difference among these additives. The solution contains 40% medium could significantly improve the removal capacity to Cr (VI). The removal rate could reach more than 98% when Cr (VI) concentrations were 10mg/L-20mg/L. Therefore, efficient strains, additives and medium could improve the removal capacity to Cr (VI) of immobilized microorganism technology. It can be widely used in chromium contaminated wastewater.

scholarly journals Thin stillage from wheat-based ethanol production as a nutrient supplement for cattle grazing crested wheatgrass pastures

1996 ◽  
Vol 76 (4) ◽  
pp. 547-553 ◽  
Author(s):  
M. O. Ojowi ◽  
D. A. Christensen ◽  
J. J. McKinnon ◽  
A. F. Mustafa
Keyword(s):  
Ethanol Production ◽  
Fluid Intake ◽  
Daily Intake ◽  
Cattle Grazing ◽  
Thin Stillage ◽  
Nutrient Source ◽  
Plasma Urea ◽  
Crested Wheatgrass ◽  
Nutrient Supplement ◽  
Weight Gains

An 84-d trial was conducted to evaluate the use of thin stillage from wheat based ethanol production as a nutrient supplement for cattle grazing crested wheatgrass. Forty medium-frame steers were allotted to eight CWG pastures (5 pasture−1) and supplied with either water or thin stillage as a fluid source. Measurements included daily intake of fluid, biweekly weight gains, start and end of test ultrasonic backfat measurements, and blood plasma samples on days 42, 56, and 70 of the trial. Samples of thin stillage and biweekly clippings of the CWG pastures were collected throughout the trial for analysis. Thin stillage averaged 8.4 ± 0.35, 48.5 ± 1.83, 9.6 ± 1.63, 34.5 ± 4.55, and 3.4 ± 0.44% (DM basis) CP, EE, NDF and ADF, respectively. Cattle with access to thin stillage exhibited superior (P < 0.05) weight gains from day 42 through day 84 of the trial. Cumulative weight gains were 1.39 ± 0.14 and 0.91 ± 0.27 kg d−1, respectively, for the thin stillage and water fed cattle (P < 0.05), an increase of 53%. Fluid intake of the cattle on stillage was 48.2 ± 2.7 L d−1 or 67% greater (P < 0.05) than that for animals on water (28.9 ± 1.53 L d−1). Daily DM intake from thin stillage estimated from fluid intake was 4.1 kg. The superior liveweight gain of cattle fed thin stillage was reflected in higher (P < 0.05) backfat levels at the end of test (2.51 vs. 0.6 mm) and higher (P < 0.05) plasma urea, Mg, and P levels. The results of this study indicate that thin stillage from wheat-based ethanol production is a valuable nutrient source for cattle grazing CWG. Key words: Thin stillage, wheat, crested wheatgrass

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