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Fermentation
It is the employment of microorganisms to which molecules such as glucose are broken down anaerobically.
Louis Pasteur
first used the term fermentation as directly caused by the life processes of minute organisms.
Fungi,
are a type of plant that doesn't contain green pigment
unicellular
Yeasts and bacteria are _________and of very small dimensions
budding
The yeasts are irregularly oval and multiply by _________
binary fission.
The bacteria are smaller and more diverse in shape. They multiply through _______
penicillin
The development of _______ during World War II led to significant advancements in antibiotics
dextran
a plasma volume expander
Oxidation
Fermentation process: alcohol to acetic acid
Reduction
Fermentation process: aldehyde to alcohol
Hydrolysis
Fermentation process: starch to glucose/sucrose
Esterification
Fermentation process: hexose & phosphoric acid to hexose phosphate
True
T/F To get a maximum chemical yield it is frequently advisable to suppress additional increase in quantity of the microorganism
Completely Denatured
Denatured alcohol type: rigorously denatured mixed with toxic products such as ethyl acetate, kerosene, acetaldehyde among all others
Specially Denatured
Denatured alcohol type: denaturing materials have been added that is not intended for consumption.
Alcohol
is second to water in solvent value and employed in nearly all industries and a raw materials for making hundreds of chemical
Completely Denatured Alcohol
Alcohol that is mostly used as antifreeze.
Specially Denatured Alcohol
Alcohol that is used in cosmetic products, pharmaceutical, and chemical manufacturing.
oxidation,
reduction
hydrolysis
esterification
Give at least 2 chemical processes involved in fermentation
saccharine materials
starchy materials
hydrocarbon gases
cellulosic materials
Raw materials from which ethyl alcohol may be made fall into four general classifications
mash,
are carbohydrates ready for yeast inoculation.
sulfuric acid
ensures an optimal pH of 4.0–5.0
Ammonium salt
provides missing nutrients in molasses,
invertase
Yeast produces ________ to facilitate hydrolysis of sugars
zymase
Yeast produces ________ to convert monosaccharides into alcohol and carbon dioxide during fermentation
Fungal amylase,
derived from Aspergillus niger fermentation, is a cost-effective alternative to malt for converting starch into fermentable sugars for industrial alcohol production
False
T/F Grain alcohol production from starch is more cost-effective compared to alcohol made synthetically or through fermentation of blackstrap molasses
Anhydrous alcohol
made by absorbing the 5% of water present in 95% industrial alcohol, using quicklime, with subsequent distillation.
Citric acid
is an organic acid used in food, medicine, and industry
Lactic acid
is an organic acid produced by microbial fermentation
Bacitracin
It is an antibiotic produced by Bacillus subtilis and related gram-positive spore-forming bacteria
Beer
is a low-alcohol beverage (2–7%) made by brewing and fermenting grains, primarily malted barley, which provides enzymes and flavor
8-10%
Commercial vinegar typically contains how many % of acetic acid.
Chaim Weizmann
Who developed the fermentation process used during the World War 1
pH
temperature
aeration-agitation
pure-culture fermentation
uniformity of yields.
Give all the critical factors of fermentation P T A U
molasses
starch
grains
corns
milk
Give at least three raw materials used in fermentation
Azeotrope
it is a liquid mixture with a constant boiling point and vapor pressure
Silcox and Lee
The five basic prerequisites of a good fermentation process were given by who?
perfumare
The term “perfume” is derived from the Latin word “________,” which means "to fill with smoke."
Olfactory cells
are located near the top of the nasal cavity
Modern solvent
highly refined ethyl alcohol mixed with water
Fixatives
retard and even the evaporation rate of various odorous constituents
Castor/Castoreum
Civet
Musk
Ambergris
Musc Zibata
Animal Fixatives
Tincture
solution created in cold
Infusion
solution requiring heat Alcohol is the primary solvent
Labdanum
Important soft gum from Mediterranean plants
Benzoin
Most important hard resin
Ethanol (highly refined ethyl alcohol)
What is the main solvent used in modern perfumes
Expression Method
Distillation Process
Extraction with Volatile Solvents
Enfleurage
Deterpenation
Recovery Methods
Expression Method
Used primarily for citrus oils
Distillation Process
Material preparation varies by plant part
Isolates
Pure chemical compounds sourced from essential oils or natural perfume materials
Semisynthetics
chemically modified natural materials
Oxidation Process
Chemical Reaction where a substance loses electrons. In the context of flavor and fragrance creation, often involves the gain of oxygen atoms.
eugenol
The industrial production of vanillin involves the oxidation of ______, a compound extracted from clove oil, it has a spicy, clove-like aroma but lacks the sweet vanilla notes we associate vanillin
Avicenna
Which Arabian physician is credited with discovering steam distillation of volatile oils?
Enfleurage
What is the process called where flowers are placed on a fat-coated surface to extract their fragrance
Vehicle/Solvent
Fixative
Odoriferous Elements
What are the three key components of a perfume VS F O
Anisaldehyde Production
Synthetic compound with a pleasant, sweet, and coumarin-like aroma. It’s commonly used in the food and fragrance industries. Produced through the oxidation of anethole
Liquid Phase
A chemical reaction where a substance is oxidized in a liquid environment. The reactants and products are dissolved in a solvent, and the reaction occurs at a relatively lower temperature.
Vapor Phase
A chemical reaction where a substance is oxidized in the gaseous state. The reactant is vaporized and then reacted with an oxidizing agent, often air, at a high temperature.
Extraction
aims to isolate specific flavor compounds or components from the fruit, usually by using a solvent
Concentration
focuses on removing water from the fruit juice to increase its flavor intensity.
Food additives
are substances intentionally added to food to improve its appearance, taste, texture, preservation, or nutritional value. They can be natural or synthetic.
Volatile
A major advantage of using ethanol as a perfume solvent is its ____________ nature, which helps project the scent.
Fennel
An aromatic plant in apiaceae family known for its licorice-like flavor
Benzaldehyde Production
It has a strong, bitter almond-like aroma that can be overpowering in perfumes and soap
Vapor phase
A chemical reaction where a substance is oxidized in the gaseous state
Straight floral
Floral bouquet
aldehyde floral
Oriental
Chypre
Woody
Green
Citrus
Cougere
Canoe
Musk
Spice
Give me one type of Perfume.
Answer
Distillation
Aims to capture the essential flavor compounds of the fruit in a concentrated form
Anethole
What is the natural compound found in star anise and fennel oil?
Volatile aroma
What compounds evaporate when the fruits are heated with steam
Hardwood/Broadleaf and Softwood/Coniferous
What are the two classes of wood?
Cellulose Lignin
Enumerate 2 the general composition of wood
Wood spirits
This is a mixture of acetic acid and wood alcohol, was collected and purified to wood alcohol
Methanol
Tar and Oil
Gas
Give only 3 products of the distillation of hardwood
Turpentine
rosin
Dipentene
Give only 3 products of the distillation of softwood
Pyrolysis or Destructive Distillation
Which principal unit process, involving various unit operations such as heat transfer, condensation, distillation, and liquid-liquid extraction, is primarily responsible for breaking down organic materials through thermal decomposition
Liquid-liquid Extraction Process
This process uses two liquids to pull out the acetic acid from the pyroligneous acid.
Suida Process
This process is all about extracting acetic acid from a wood-derived liquid (pyroligneous liquor) and purifying it for use, typically by using methods like concentration, extraction, and neutralization
Sulfate Pulp Turpentine Method
This method for processing wood for naval-stores products where the wood is cooked with chemicals to make paper pulp
Olustee Process
This is the most common method for cleaning the gum