May 9, 2017
1.TITLE: Practical report on making alcohol from glutinous tape
2. PRACTICAL OBJECTIVES:
O To know how to make black sticky tape.
O To know the alcohol content contained in black sticky
tape.
O To know the benefits of black sticky tape as bioethanol
O To obtain alcohol from the glutinous tape fermentation
product
3. DAY / PRIVATE DATE : Tuesday, August 24, 2015
4. BRIEF THEORY :
The process of making black glutinous tape is a fermentation
process of glutinous tape by Saccharomyces Cerivisiae mushrooms that convert
fructose and glucose carbohydrates into alcohol and carbon dioxide. In addition
there are also fungi microorganisms that turn starch into glucose, namely Mucor
chlamidosporus and Endomycopsis fibuligera. Both these microorganisms assist in
converting starch into simple sugars (glucose). Benefits of black sticky tape
is beneficial for the health of the body because it contains lactic acid
bacteria. These foods are beneficial for body immunity, lowering cholesterol
and suppressing cancer cells. In order for lactic acid bacteria to remain on
glutinous tape it must be stored in cold temperatures.
5. TOOLS :
Ø Pans
Ø Stove
Ø Jars
Ø Tray
Ø Bakul Spoon
6. MATERIALS :
Ø Centong
S 1 liter of black sticky rice
S Water
S Banana Leaf
S 5 tablespoons tape yeast
7. STEPS OF WORK:
1) The black glutinous rice is washed
2) Soaked Black Glutinous Rice for 24 Hours
3) Rinse again Black Sticky Rice with water several times
until clean
4) Then steamed black sticky rice until cooked
6) Yeast pounded until smooth
5) Once cooked is placed on top of the winnow then cooled
using a fan
7) The sticky rice has been sprinkled with yeast, the top
surface is covered up tightly with several layers so as not to be contaminated
with air.
8) After the cold tape and then mixed yeast that has been
smooth and stirred until evenly distributed. A) The first layer is covered by
using banana leaves.
9) Then the tape is silenced for 1 week at room temperature
for the fermentation process.
B) The second layer is closed using a jar. C) The third
layer is closed by using a solatip in the lid of the jar.
12) To know the existence of alcohol content, quantitative
analysis is done by burning the alcohol obtained to see the fire.
10) After 1 week, the glutinous tape and water are separated
by way of filtering or squeezing.
11) Then the glutinous water obtained is distilled to
produce steam to become alcohol.
8. DATA RESULTS EXPERIMENTS
A. Observation Table
Tape
|
Before Fermented
|
After Fermented
|
Volume (ml)
|
|||||
from black sticky rice
|
Flavor
|
Taste
|
Teksture
|
Flavor
|
Taste
|
Teksture
|
Water Of Sticky Rice
|
alcohol
|
-
|
-
|
Hard
|
Alcohol
|
Sweet,sour
|
Soft
|
200
|
100
|
|
9. DATA ANALYSIS
Based on experimental results of glutinous tape making by
fermentation obtained 200 ml black sticky water. This is because the results of
fermentation done within 7 days will produce enough glutinous water while a
little alcohol because within 7 days the glutinous tape made is too ripe.
From the results of the experiment there is a change of
taste, smell, and texture. That is sweet and sour taste has an alcoholic taste,
strong smell of alcohol, aqueous texture, Because in the process of
permentation changes the hydrolysis of starch into glucose and maltose that
will give sweetness and sugar changes to alcohol and organic acids caused by
the fungus Saccharomyces cerevisiae .
In the process of distillation of glutinous water used from
each glutinous tape is 200 ml so that the alcohol obtained as much as 100 ml
for black sticky tape. This is because in the presence of black sticky rice is
used in the manufacture of tape as much as 0.5 kg. When the steam distillation
process is generated long, so the resulting alcohol content is small.
Reaction
The reaction in the fermentation of black sticky rice into
tape is glucose (C6H12O6) which is the simplest sugar, through fermentation
will produce ethanol (2C2H5OH). This fermentation reaction is carried out by
yeast, and is used in food production.
Chemical Reaction Equation: C6H12O6 + 2C2H5OH + 2CO2 + 2 ATP
Translation: Sugar (glucose, fructose, or sucrose) + Alcohol (ethanol) + Carbon
dioxide + Energy
10. CONCLUSION
1. Preparation of alcohol or ethanol can be produced from
black sticky tape.
2. Alcohol produced by 100 ml black sticky tape.
3. From the results of the experiment there are changes in
taste, odor, and texture after fermentation
11.DOCUMENTATION
Do you think the alcohol on 'tape' become carboxylic acid if left in an open space?
ReplyDeletealcohol on tape is form after fermentation , so in the process
Deletealcohol not become caboxylix acid , cause the structure of tape is alcohol funcional groups
and in the reaction alcohol not oxidation into alcanal or aldehid
thanks
In this experiment why use yeast?
ReplyDeleteYeast converts the sugar in a product into alcohol — it’s what makes grape juice wine, or wet grains beer.
DeleteYeast can also add to the flavor of a beverage. I have had one year’s grapes fermented with two different strains of yeast, giving them very different flavors. Certain strains of yeast are used in Champagne, for instance, and not still wines.
Other strains of yeast are used to make bread rise — the inputs (sugar and starch) are the same, but bread yeast lives best in different conditions than those used to ferment beverages.
Edit: From the yeast’s perspective, this process is how it takes in nutrients and disposes of waste (mostly alcohol and carbon dioxide) — it is what allows yeast to grow and reproduce.
Does paracetamol made from alcohol? If you know, please explain me.
ReplyDeleteParacetamol, also known as acetaminophen or APAP, is a medication used to treat pain and fever.[10] It is typically used for mild to moderate pain. There is poor evidence for fever relief in children. It is often sold in combination with other ingredients such as in many cold medications.In combination with opioid pain medication, paracetamol is used for more severe pain such as cancer pain and after surgery.It is typically used either by mouth or rectally but is also available intravenously. Effects last between two and four hours.
DeleteDoes paracetamol made from alcohol?
is not pure made from alcohol , but in the structure of paracetamol have alcohol funcional group https://upload.wikimedia.org/wikipedia/commons/2/29/Paracetamol-skeletal.svg
Any reaction involved in the process of making black sticky rice
ReplyDelete2(C6H10O5)n + nH2O → n C12H22O11
DeleteAmilum/pati amilase maltosa
C12H22O11 + H2O → 2 C6H12O6
Maltosa maltase glukosa
C6H12O6 → 2 C2H5OH + CO2
Glucose alcohol
Why lactic acid bacteria should be stored in cold temperatures?
ReplyDeleteThis study was aimed to determine the accumulation of free fatty acid by mesophilic lactic acid bacteria (Lactococcus lactis subsp. lactis 1471, Lactococcus lactis subsp. cremoris 1000 and Lactobacillus casei 111) in cold-stored milk. According to the results, all cold-stored milks had higher acid degree values than those of fresh milk. This phenomenon showed that a slight increase occurred in the accumulation of free fatty acids as a result of spontaneous lipolysis during cold storage. All lactic acid bacteria showed good performance in production of titratable acidity, which increased during fermentation of the milk (fresh and stored milks). Moreover, as the storage time was prolonged, more free fatty acid accumulation was obtained from the fermentation of the cold-stored milk by the investigated lactic acid bacteria. The control milk, which was without lactic acid bacteria, showed no change in the accumulation of free fatty acid during fermentation. From this result, it can be suggested that longer cold-storage time can induce higher free fatty acid accumulation in milk by lactic acid bacteria.
Deletewhat the CONCLUSION your report?
ReplyDelete1. Preparation of alcohol or ethanol can be produced from black sticky tape.
Delete2. Alcohol produced by 100 ml black sticky tape.
3. From the results of the experiment there are changes in taste, odor, and texture after fermentation