This document describes organic acids, including their properties, examples, and reactions. Key points are:
1) Organic acids are weak acids that contain carbon and hydrogen. Common examples include ethanoic, methanoic, lactic, and citric acids.
2) Organic acids are miscible in water when small, but larger ones are only soluble in organic solvents. They are liquids at room temperature and have higher boiling points than alkanes.
3) Organic acids form hydrogen bonds, giving them higher boiling points than alkanes. This allows small ones to dissolve in water and larger ones in organic solvents.
Organic acids are different from general acids. Here is all details about organic acids . The strength of organic acids and factors affecting their strength . As we promise we uploads it. We will also upload more presentations about general and organic chemistry botany and zoology. Our aim is to make knowledge accessible to each and everyone.
Alcoholic fermentation, also referred to as, Ethanol fermentation, is a biological process in which sugars such as glucose, fructose, and sucrose are converted into cellular energy and thereby produce ethanol and carbon dioxide as metabolic waste products. Because yeasts perform this conversion in the absence of oxygen ethanol fermentation is classified as anaerobic.
Organic acids are different from general acids. Here is all details about organic acids . The strength of organic acids and factors affecting their strength . As we promise we uploads it. We will also upload more presentations about general and organic chemistry botany and zoology. Our aim is to make knowledge accessible to each and everyone.
Alcoholic fermentation, also referred to as, Ethanol fermentation, is a biological process in which sugars such as glucose, fructose, and sucrose are converted into cellular energy and thereby produce ethanol and carbon dioxide as metabolic waste products. Because yeasts perform this conversion in the absence of oxygen ethanol fermentation is classified as anaerobic.
THE FERMENTATION PROCESS AND ITS TYPES ARE DISCUSSED HERE, WITH SOME EXAMPLES AND SYNTHESIS FORMED BY FERMENTATIONSUCH AS ANTIBIOTICS INCUDING PENICILLIN, STREPTOMYCIN AND VITAMINS A VITAMIN B2, VITAMIN B12.
Here is brief ppt on industrial production of amino acids - glutamine, lysine, tryptophan.
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This presentation includes the basics of ethanol production, its brief history, microbes useful in ethanol production, media suitable for ethanol production, uses and application of ethanol in various fields such as food and beverages, medical, pharmaceuticals etc.
Glycerol can be produced by using different processes and feedstocks. For example, it can be obtained by propylene synthesis via several pathways [8], by hydrolysis of oil or by transesterification of fatty acids/oils.
This PPT is meant for undergraduate students to clear the concepts of Microbial metabolism.
The presentation includes the basics of catabolism and anabolism
Hydrocarbon are major constituents of crude oil and petroleum. They can be biodegraded by naturally-occurring microorganisms in freshwater and marine environments under a variety of aerobic and anaerobic conditions. The ability of microorganisms - bacteria, archaea, fungi, or algae - to break down hydrocarbons is the basis for natural and enhanced bioremediation. To promote biodegradation, amendments such as nitrogen and phosphorous fertilizer are often added to stimulate microbial growth and metabolism
Generally, organic acids are produced commercially either by chemical synthesis or fermentation. ... All organic acids of tricarboxylic acid cycle can be produced in high yields in microbiological processes. Among fermentation processes, the production of organic acids is dominated by submerged fermentation.
THE FERMENTATION PROCESS AND ITS TYPES ARE DISCUSSED HERE, WITH SOME EXAMPLES AND SYNTHESIS FORMED BY FERMENTATIONSUCH AS ANTIBIOTICS INCUDING PENICILLIN, STREPTOMYCIN AND VITAMINS A VITAMIN B2, VITAMIN B12.
Here is brief ppt on industrial production of amino acids - glutamine, lysine, tryptophan.
Please share your feedback and queries. Constructive criticism is appreciated.
Thank you
This presentation includes the basics of ethanol production, its brief history, microbes useful in ethanol production, media suitable for ethanol production, uses and application of ethanol in various fields such as food and beverages, medical, pharmaceuticals etc.
Glycerol can be produced by using different processes and feedstocks. For example, it can be obtained by propylene synthesis via several pathways [8], by hydrolysis of oil or by transesterification of fatty acids/oils.
This PPT is meant for undergraduate students to clear the concepts of Microbial metabolism.
The presentation includes the basics of catabolism and anabolism
Hydrocarbon are major constituents of crude oil and petroleum. They can be biodegraded by naturally-occurring microorganisms in freshwater and marine environments under a variety of aerobic and anaerobic conditions. The ability of microorganisms - bacteria, archaea, fungi, or algae - to break down hydrocarbons is the basis for natural and enhanced bioremediation. To promote biodegradation, amendments such as nitrogen and phosphorous fertilizer are often added to stimulate microbial growth and metabolism
Generally, organic acids are produced commercially either by chemical synthesis or fermentation. ... All organic acids of tricarboxylic acid cycle can be produced in high yields in microbiological processes. Among fermentation processes, the production of organic acids is dominated by submerged fermentation.
PRODUCTION OF ACETIC ACID FROM MOLASSES BY FERMENTATION PROCESSIJARIIE JOURNAL
Acetic acid also called ethanoic acid is organic compound. Acetic acid produced via fermentation. Its pathway is
conversion of glucose to ethanol and ethanol to acetic acid. In first step, Saccaromyces cerevesiae (yeast) converts
fermentable sugar of molasses into ethanol and carbon dioxide. In second step, acetobacter aceti (acetic acid
bacteria) converts ethanol into acetic acid and water. After completing process, the separation of product is carried
out via centrifugation. Mixture of acetic acid and water is separated by distillation.
In this report, details regarding cultures (micro-organism) have been used for the process is discussed. In practical
laboratory work, ethanol fermentation and acetic acid fermentation have been carried out and it’s optimum
parameters (pH, temperature, sugar concentration, and ethanol concentration) have been decided, which is
discussed in detail. The kinetic study also have been done is mentioned.
Key words: Saccaromyces cerevesiae, acetobacter aceti, micro-organism, fermentable sugar
Introduction to various types of food ingredients commonly used in food products — chemistry, physical and functional properties and applications in food products.
Diethyl ether can be prepared both in laboratories and on an industrial scale by the process called acid ether synthesis.
Ethanol is mixed with a strong acid like sulfuric acid (H2SO4).This strong acid dissociates in the aqueous environment producing H3O+(hydronium ions).
Learning Objectives
1. Know that Carboxylic acids contain the functional group -COOH
2. Understand how to draw structural and displayed formulae for Carboxylic Acids
3. 3. Predict physical properties of Carboxylic Acids
Non- aqueous titrations are those in which the titrations of too weakly acidic or basic substances are carried out using non-aqueous solvents so as to get sharp end point.
Such titrations can also be used for the titration of the substances not soluble in water.
The speed, precision and accuracy of the non-aqueous method are close to those of classical acidimetric and alkalimetric titrations.
First reported successful quantitative titration of organic acid and base in non-aqueous solvent: 1910.
To an understanding of non-aqueous acid base titrimetry the theories of acid and base is very important. The theories are:
Acids are hydrogen containing compounds that dissociates to yield hydrogen ions (H+) when dissolved in water.
Bases are compounds that dissociates to yield hydroxide/hydroxyl ions (OH-) when dissolved in water.
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Details notes for Diploma in Pharmacy (D.Pharmacy) Students.
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Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
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He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
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2. Exam Objectives describe the useful chemical and physical properties of organic acids, such as pH, acid behaviour and miscibility
3. Organic Acids You should be familiar with Ethanoic Acid – the main component of vinegar This is the most common of the ORGANIC ACIDS which can also be called CARBOXYLIC acids These are acids made from hydrocarbons – the mainly contain Carbon and Hydrogen Other examples include: Methanoic acid – aka formic acid, found in bee stings Lactic acid – aka 2-hydroxypropanoic acid, found in milk and made during anaerobic respiration Citric acid – aka 3-carboxy-3-hydroxypentanedioic acid, found in citrus fruits and sherbet
4. Properties of Organic Acids They are weak acids (NB: this is different from concentration, you can be a weak acid but very concentrated) Like alcohols, the smaller organic acids (like the examples given earlier) are miscible in water. Larger organic acids are only soluble in organic solvents like alcohols or oily compounds The smaller acids are liquids at room temperature, while the larger ones are solid – the BP increases as the number of C atoms increases
5. What is a weak acid? pH measures how strong an acid is by how many H+ ions are dissolved in water. A strong acid has a low pH and lots of H+ ions, while a weak acid has a higher pH (but still less than 7) and fewer H+ions. So, hydrochloric acid is a strong acid, while organic acids are weak acids In the picture, a strong acid has lots of free H+ ions, while in the weak acid more of the H+ ions are still attached to the negative ions. Unless they are free, the H+ ions won’t react, and so the acid is said to be weaker.
6. Hydrogen Bonding This is a brief explanation, but helps you understand the difference in properties of the alkanes compared to the carboxylic acids Alcohols, acids and Esters all form hydrogen bonds. These are stronger than the forces that alkanes have between the molecules. This means they can be soluble in water, and have higher boiling points than similar alkanes. The picture shows hydrogen bonds between water molecules because it contains O and H. Acids, alcohols and esters also contain O and H atoms and this means they also have hydrogen bonding.
7. Hydrogen Bonding and Miscibility When an acid is very long (more than 4 carbons), it cannot form enough hydrogen bonds to be stable – it becomes hydrophobic This means its solubility in water decreases However, with longer carbon chains it can form bonds with organic solvents which are also made up of lots of carbons. It now becomes more soluble in organic solvents than water.
8. Reactions of Organic Acids Are the same as for the inorganic acids we already know Acid + Alkali Salt + water Acid + Metal Salt + hydrogen Acid + Metal Carbonate Salt + Carbon Dioxide + water Acid + Metal Hydrogencarbonate Salt + CO2 + water The only thing that changes is the name: Ethanoic acid + sodium hydroxide sodium ethanoate + water Methanoic acid + potassium carbonate potassium methanoate + carbon dioxide + water
9. Questions to practice Imagine you are carrying out the following tests. Write down what your observations would be and explain them. It might be easier to put this in a table: A Test a little ethanoic acid with universal indicator. What is the pH? B Fill a tube about one-third full with dilute ethanoic acid. Add a piece of magnesium. Note your observations and test the gas that is given off. C Fill a tube about one-third full with dilute ethanoic acid. Add a spatula of sodium hydrogen carbonate. Note your observations and test the gas that is given off. D Repeat step C using sodium carbonate.
10. RESULTS TABLE Finish off by writing a word and balanced chemical equation for the reactions in B, C and D