scholarly journals INHIBITION OF FORESTOMACH MOTILITY BY SHORT-CHAIN VOLATILE FATTY ACIDS IN SHEEP

1984 ◽  
Vol 64 (5) ◽  
pp. 11-12 ◽  
Author(s):  
P. C. GREGORY
Keyword(s):  
Fatty Acids ◽  
Key Words ◽  
Myenteric Plexus ◽  
Volatile Fatty Acids ◽  
Short Chain ◽  
Direct Effects ◽  
Ruminal Contractions

Ruminal infusions of volatile fatty acids (VFAs) abolished intrinsic forestomach contractions (vagotomized sheep) and secondary ruminal and reticular contractions at similar concentrations. Lower VFA concentrations abolished primary ruminal contractions. VFA mixtures were inhibitory by summation of individual VFA effects. Inhibition may involve direct effects on the forestomach musculature or myenteric plexus. Key words: Sheep, forestomach motility, volatile fatty acids

scholarly journals Optimization of short chain volatile fatty acids production from household food waste for biorefinery applications

2021 ◽  
pp. 101562
Author(s):  
Giuseppe Strazzera ◽  
Federico Battista ◽  
Barbara Tonanzi ◽  
Simona Rossetti ◽  
David Bolzonella
Keyword(s):  
Fatty Acids ◽  
Food Waste ◽  
Volatile Fatty Acids ◽  
Short Chain ◽  
Household Food

scholarly journals Short-Chain Fatty Acids

2020 ◽  
Author(s):  
Paulina Markowiak-Kopeć ◽  
Katarzyna Śliżewska
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Intestinal Microbiome ◽  
Test Results ◽  
And Function ◽  
The Relationship ◽  
Normal Health ◽  
Chain Fatty Acids

The relationship between diet and the diversity and function of the intestinal microbiomeand its importance for human health is currently the subject of many studies. The type and proportionof microorganisms found in the intestines can determine the energy balance of the host. Intestinalmicroorganisms perform many important functions, one of which is participation in metabolicprocesses, e.g., in the production of short-chain fatty acids—SCFAs (also called volatile fatty acids).These acids represent the main carbon flow from the diet to the host microbiome. Maintainingintestinal balance is necessary to maintain the host’s normal health and prevent many diseases.The results of many studies confirm the beneficial effect of probiotic microorganisms on the balanceof the intestinal microbiome and produced metabolites, including SCFAs. The aim of this review is tosummarize what is known on the effects of probiotics on the production of short-chain fatty acidsby gut microbes. In addition, the mechanism of formation and properties of these metabolites isdiscussed and verified test results confirming the effectiveness of probiotics in human nutrition bymodulating SCFAs production by intestinal microbiome is presented.

ABSORPTION OF DISSOCIATED VOLATILE FATTY ACIDS THROUGH THE RUMEN WALL OF SHEEP

1984 ◽  
Vol 64 (5) ◽  
pp. 167-168 ◽  
Author(s):  
S. OSHIO ◽  
I. TAHATA
Keyword(s):  
Fatty Acids ◽  
Key Words ◽  
Absorption Rate ◽  
Volatile Fatty Acids ◽  
Isobutyric Acid ◽  
Hypertonic Solution ◽  
Hypotonic Solution ◽  
Ph Level ◽  
Fractional Absorption

The fractional absorption rate of VFA, which was in the order of caproic > valeric > butyric = propionic = acetic > isovaleric > isobutyric acid at high pH level, was promoted in hypotonic solution. Conversely in hypertonic solution or long-term isolated rumen pouch, the absorption of lower acids such as acetic or propionic acid was depressed. Key words: VFA, absorption, osmolality, rumen, sheep

scholarly journals Plant-Derived Oils Reduce Pathogens and Gaseous Emissions from Stored Cattle Waste

2001 ◽  
Vol 67 (3) ◽  
pp. 1366-1370 ◽  
Author(s):  
Vincent H. Varel ◽  
Daniel N. Miller
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Anaerobic Bacteria ◽  
Short Chain ◽  
Fecal Coliforms ◽  
Gaseous Emissions ◽  
Livestock Waste

ABSTRACT Carvacrol and thymol in combination at 6.7 mM each completely inhibited the production of short-chain volatile fatty acids and lactate from cattle waste in anoxic flasks over 23 days. Fecal coliforms were reduced from 4.6 × 106 to 2.0 × 103 cells per ml 2 days after treatment and were nondetectable within 4 days. Total anaerobic bacteria were reduced from 8.4 × 1010 to 1.5 × 107 cells per ml after 2 days and continued to be suppressed to that level after 14 days. If the concentration of carvacrol or thymol were doubled (13.3 mM), either could be used to obtain the same inhibitory fermentation effect. We conclude that carvacrol or thymol may be useful as an antimicrobial chemical to control pathogens and odor in stored livestock waste.

scholarly journals Microbial Production of Short Chain Fatty Acids from Lignocellulosic Biomass: Current Processes and Market

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Ivan Baumann ◽  
Peter Westermann
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Plant Biomass ◽  
Anaerobic Fermentation ◽  
Short Chain Fatty Acids ◽  
Industrial Applications ◽  
Short Chain ◽  
The Status ◽  
Biotechnology Companies ◽  
Chain Fatty Acids

Biological production of organic acids from conversion of biomass derivatives has received increased attention among scientists and engineers and in business because of the attractive properties such as renewability, sustainability, degradability, and versatility. The aim of the present review is to summarize recent research and development of short chain fatty acids production by anaerobic fermentation of nonfood biomass and to evaluate the status and outlook for a sustainable industrial production of such biochemicals. Volatile fatty acids (VFAs) such as acetic acid, propionic acid, and butyric acid have many industrial applications and are currently of global economic interest. The focus is mainly on the utilization of pretreated lignocellulosic plant biomass as substrate (the carbohydrate route) and development of the bacteria and processes that lead to a high and economically feasible production of VFA. The current and developing market for VFA is analyzed focusing on production, prices, and forecasts along with a presentation of the biotechnology companies operating in the market for sustainable biochemicals. Finally, perspectives on taking sustainable product of biochemicals from promise to market introduction are reviewed.

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