Formulation of cold-pressed oils

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FORMULATION OF
COLD-PRESSED OILS
An Academic presentation by Dr. Nancy Agnes,
Head, Technical Operations, FoodResearchLab
Group www.foodresearchlab.com Email
info_at_foodresearchlab.com
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Today's Discussion
OUTLINE
Introduction Cold Pressed Oils and their
Difference to Refined Oils Advantages of Cooking
with Cold-Pressed Oils Disadvantages of
Cold-Pressed Oil
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Introduction
The world health organization (WHO) and the Food
and agricultural organization (FAO) suggest that
the average consumption of oil in a day per
person is 100 to 150 grams, in contrast to 20 -30
grams per day which is the required
amount. This means humans are consuming almost
5x higher oil/ fat content than required by the
body.
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Cold Pressed Oils and their Difference to
Refined Oils
The oils are extracted from fruits, vegetables,
seeds and nuts, such as sunflower, canola,
sesame, coconut without applying external
heat. Moreover, the food product companies try
to keep the heat production minimal during the
extraction procedure. This is because the
flavour and nutritional quality get degraded
with heat. Contd...
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Cold pressing oil is extracted in the natural
process which involves crushing the seeds and
pushing out the oil through a tremendous amount
of pressure from cold pressed oils development
companies. In ancient times, oils were extracted
from oilseeds using a mortar and pestle made out
of stone or wood under pressure. This was
considered a simple method as didnt involve any
generation of heat.
Contd...
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Due to frictional and mechanical energy utilizes
the heat
extraction technique however, this temperature
dissipated
very does
little not exceed 49 C, retaining all the
beneficial properties with natural flavour. This
method is expensive as it takes a longer time
for extraction and produces a lower yield
however, it is the safest and natural extraction
method during a new product development. Coconut
oil is rich in medium-chain triglycerides (MCT).
Contd...
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MCT unlike low chain triglycerides is easily
digestible by the body, ready to absorb and
utilise the energy.
Coconut oil is antifungal and
loaded with antibacterial, antiviral properties,
as it
contains lauric acid and caprylic acid. Coconut
oil also boosts immunity and aids in staying off
illness.
Contd...
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Contd...
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Olive oil aids in weight loss as it reduces
hunger pangs and improves metabolism. Olive oil
also helps in reducing the risk of heart
disease, colon cancer, asthma and
diabetes. Olive oils also lower cholesterol and
blood pressure aiding anti-inflammatory, free
radical damage and supporting gut
health. Avocado oil has a thicker consistency
and contains powerful nutrients, which keeps
your satiety level in control.
Contd...
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Sesame oil contains polyunsaturated fatty acids,
such as omega 3, 6 and 9, which aids in the
reduction of body fat. The polyunsaturated fatty
acids increase the plasma levels of leptin
(hormone) which regulates body weight. Leptin
aids in controlling the satiety centre of the
brain providing a satisfying feeling. Sesame oil
is also known for treating arthritis, diabetes,
lowering cholesterol and combating free radical
damage.
Contd...
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In contrast, purification,
refining which
is a process of oil uses high heat and the
chemical solvents, which damaged
beneficial properties present in the oil such as
bioactive compounds. Manufacturers choose the
double refining method as their yield is
significantly higher compared to cold pressing.
Contd...
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To make the oil presentable and attractive, an
external heat of 200 ? is applied along with
neutralized for acidity, bleached with chemicals
such as acetic acid and hexane to removing
colours and finally deodorized, to remove
natural aroma. This results in removing all
gums, proteins, phospholipids from oil resulting
in nothing but pure empty calories.
Contd...
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Moreover, high trans-fat directly equates to the
amount of bad cholesterol and additional
additives are added to improve shelf-life, boost
colour and odour which are harmful upon
continuous consumption. Scientists recommend
cold-pressed oils as they are healthier compared
to refined oils, containing antioxidants,
cholesterol-free and do not contain harmful
solvent residues such as bleach.
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Advantages of Cooking with Cold-Pressed Oils

• Cold pressed oil extremely rich in nutrients,
  containing higher levels of phenolic acid, and
  retaining most of proteins, phospholipids,
  vitamins, antioxidants and lecithin.
• Best Cold-pressed oils retain the all-natural
  aroma, flavour, and antioxidant properties
  making them great for cooking as well as
  skincare requirements.
• The antioxidants fight against infections and
  tumours.
• Contd...

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3. Olive oil, pistachio oil and avocado oil
contain a high amount of monounsaturated fatty
acids. These fats lower the risk of heart
conditions by lowering low-density lipoproteins
and overall cholesterol levels. These
monounsaturated fatty acids also improved the
functions of blood vessels and aid in
controlling blood sugar levels. Contd...
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• Sesame, grape seed, flaxseed oil contain a high
  amount of polyunsaturated fatty acids, such as
  omega 3 and omega 6 fatty acids.
• Omega 3 fatty acids are good for heart conditions
  and omega 6 fatty acids aid in controlling blood
  sugar levels, reducing the risk of diabetes.
• Nutritionists recommend sesame, sunflower and
  coconut oils to be topped on salads, bread and
  cooked meat to gain maximum benefit and they
  dont react well to high heat conditions such
• as cooking.

Contd...
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• Vitamin E is naturally present in oilseeds and is
  available in abundance in cold-pressed oils.
• Vitamin E is beneficial for the skin, heart, brain
  , hair due to their powerful antioxidants.
• The fatty acid composition of cold-pressed oils
  is more balanced and better suited for human
  consumptions.
• Cold pressed oils are free from chemicals like
  hexane, sodium hydroxide, sodium bicarbonate and
  bleaching agents.

Contd...
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Contd...
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1. Cold pressed coconut oils contain a high amount
   of lauric acid and triglycerides, which protect
   us from weight gain and heart diseases.
2. Virgin oils are complimented for their natural
   flavour and aroma along with other spices used in
   various cuisines.
3. Cold-pressed oils are additive fee, such as
   solvents and preservatives that are not meant for
   human consumption.
4. Cold-pressed oils lower the carbon footprint
   consuming less processed things and saving the
   environment.

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Disadvantages of Cold- Pressed Oil

• 1. There a few disadvantages of cold-pressed oils
  even being free of chemicals and preservatives,
  these oils have a short shelf life, with a
  maximum of 6 months.
• The shelf-life can be improved by storing in dark
  bottles with refrigeration.
• Contd...

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They can also be stored in clay containers which
extend the shelf life by almost a year. 2.
Customers need to be aware of the source of oil
as it would be preferable to obtain organic
source to gain maximum benefits.
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