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Title: aloe vera chemical composition benefits of aloe vera stevia


1
Value Added Foods For Nutritional And Health
Benefits
  • Dr. (Mrs.) Anita Kochhar
  • Professor
  • Deptt. of food and nutrition
  • College of Home Science
  • Punjab Agricultural University
  • Ludhiana

2
Present Scenario of Health of Indians
  • There has been a striking change in life style
    and dietary habits of Indians. The population
    continues to rise as does rural to urban
    migration and poverty to middle class transition.
  • Technology manifestation have been making roads
    into all corners of our country and into homes of
    the all classes of Indians.
  • Technology have brought labor saving devices at
    affordable cost which has led to steep reduction
    of expenditure of energy in carrying out daily
    tasks. And increasingly daily sedentary
    population is beginning to see the emergence of
    the so-called life style diseases-obesity,
    hypertension, diabetes mellitus and
    cardiovascular diseases.
  • However, maternal and infant mortality rate
    remain high and well above to millennium
    Development Goals and Anaemia in all sections of
    population is at high level. Nearly one third of
    infants are low birth weight and at risk of
    stunting.

3
  • To overcome the problems of undernutrition and
    overnutrition
  • There is need to develop value added products
    from cereals and pulses.
  • Development and nutritional evaluation of
    beta-carotene and iron rich products from
    unconventional vegetables.
  • Development of fiber rich products.
  • Development and nutritional evaluation of value
    added products using medicinal plants and to test
    their efficacy against blood sugar and
    cholesterol level in animals and human beings.
  • Nutritional evaluation of underutilised foods of
    India and incorpoartion in traditional diet to
    improve their nutritional quality.
  • Nutritional evaluation of new crop verities and
    preparation of value added products.

4
Pearl millet
  • In India, Pearl millet is the fourth most
    important staple food crop after rice, wheat, and
    sorghum .
  • India is the largest producer of pearl millet
    both in terms of area
  • (9.1 million hectare ) and production ( 7.3
    metric tones) with an average productivity of 780
    kg / hectare .
  • The grain of pearl millet is particularly rich in
    iron and zinc and has high levels of fat and
    considered to have one of the best protein
    quality or amino acid score as compared to other
    cereals.
  • Inspite of greater availability, low cost and
    comparatively good nutritional value, use of
    pearl millet in human consumption is very low and
    the major constraints which interfere in its
    utilization is the presence of antinutirtional
    factors in the form of phytic acid and
    polyphenols.

5
Sorghum (Jowar)
  • India is the 2nd largest producer of sorghum .
  • It is the 3rd most important cereal of India
    after rice and wheat. it provides staple foods to
    millions.
  • Jowar is nutritionally superior to rice and
    comparable in many aspects with wheat. it
    provides cheap staple food and is comparatively
    more nutritious in terms of proteins,
    carbohydrates, minerals etc., to millions of
    people.
  • Sorghum and millets in general are rich sources
    of B-complex vitamins.

6
Malting of Sorghum and pearl millet
  • sorghum and
    pearl millet (separately)

  • Cleaning

  • Soaking for 12 h

  • Germination for 16 h
  • Removal of
    vegetative portion

  • Roasting

  • Grinding and Sieving
  • Storing in
    air tight container

7
PROCESSING OF RAW MATERIAL
Pearl millet
Malted pearl millet
Pearl millet powder
Roasted pearl millet
8
Nutrient composition of sorghum, millet and other
cereals(per 100 g edible portion 12 percent
moisture)
9
OATS
  • Use of oat flour as food supplements should be
    encouraged as its helps to improve the lipid
    profile and could be easily included in our daily
    diet in the form of chappatis it provide soluble
    fiber beta-glucan , antioxidants, phytochemicals,
    essential fatty acids. Gamma linolenic acids
    which are otherwise or negligible in our daily
    diet.
  • It is recommended that Oat flour should be
    supplemented with the wheat flour in the ratio
    of 13.

10
Flaxseed
  • Whole Flaxseed contains 28 dietary fibre (7
    10 soluble fibre, 11 - 18 insoluble fibre).
    Soluble fiber binds bile acids cholesterol and
    help in their elimination from the body. while
    the insoluble fiber found in flaxseed helps to
    slow the release of sugar into the bloodstream
    following a meal, preventing rise in blood
    glucose levels.

11
  • Flaxseed is rich source of Magnesium which is
    used in the production of prostaglandin E1 which
    is a powerful vasodilator. Vasodilator causes the
    blood vessels to relax and widen, allowing for
    easier blood flow and results in a lower blood
    pressure.
  • Flaxseed is one of the few dietary sources
    providing 51 ratio of ?-6 (linoleic acid) ?-3
    (alpha linolenic acid) which is considered as the
    best ratio in the diet.  Omega 3 fatty acids
    reduce inflammation. Flaxseeds contain 41 fat,
    of which 73 are polyunsaturated fatty acids
    (PUFA), 18 are monounsaturated fatty acids
    (MUFA) and 9 are saturated fatty acids (SFA)
    making it a low saturated fat food.
  • 20g flaxseed powder is effective in lowering
    blood glucose,lipid profile and blood pressure.

12
Flaxseed Processing
Procurement
Cleaning
Washing
Sun Drying
Roasting For 5 Minutes
Grinding
Packing of powder in zip lock bags
13
Soyabean
14
  • Role of soy bean in diabetes
  • The protein and fiber in soybeans can prevent
    high blood sugar levels and help in keeping blood
    sugar levels under control.
  • Role of soy bean in heart disease
  • Soy is cholesterol-free
  • The soy proteins reduce the cholesterol level
  • Most of the fats in soy products are
    poly-unsaturated
  • Soy isoflavones prevent atherosclerosis
  • Soy contains soluble fibers which reduces the
    amount of cholesterol circulating in the blood.
  • Role of soy bean in blood pressure
  • Soy protein supplements could help prevent high
    blood pressure in people at risk, and lower it in
    those with early stage hypertension
  • Consumptiom of 25 gm of soya protein per day may
    lower the risk of heart disease and protecting
    many cancers.
  •  

15
Whey Water
  • Whey is a nutritious by-product from cheese,
    chhana and paneer containing valuable nutrients
    like lactose, proteins, minerals and vitamins
    etc.,which have indispensable value as human
    food.
  • In India, it is estimated that about 100 million
    kg of whey is annually derived as a by product
    which may cause substantial loss of about 70,000
    tones of nutritious whey solids ( Parekh,2006).
  • The branched-chain amino acids (BCAAs) present in
    whey stimulate muscle protein synthesis.
  • The proteins of whey belong to protein of highest
    biological value because of their amino
    acid composition. Biological active peptide
    sequences which become effective during
    digestion are of importance for secretion of
    entero- hormones as well as for immune enhancing
    effects.( Barth CA and Behnke U, 1997)

16
  • The conversion of whey into beverages through
    fermentation or without fermentation is one of
    the most attractive avenues for the utilization
    of whey for human consumption.

Nutrient composition of whey water
17
Cauliflower leaf powder
  • In India, the consumption of green leafy
    vegetables is very low and is much below the RDA.
    Therefore, majority of Indians don't meet
    sufficient vitamins and minerals present in leafy
    vegetables.
  • At the time of harvest cauliflower produces 60
    leaf part and 40 edible curd.
  • The present practice is to send the cauliflower
    to the market along with the leaves as a result
    the leaves end up as garbage, which could
    otherwise be utilized as a value added product.
  • Cauliflower leaves which are generally thrown
    away as waste are rich source of Iron , protein
    and beta- carotene and contribute these nutrients
    to the diet.
  • These are cheap and best source of vitamins and
    minerals and can be well incorporated in its
    powder form in the beverages.

18
Nutrient composition of dry cauliflower leaf
powder
19
PROCESSING OF RAW MATERIAL
Cauliflower leaves
Dried Cauliflower leaves
Cauliflower leaf powder
20
Broccoli
  • Broccoli is classified in the Italica cultivar
    group of the species Brassica oleracea. The
    scientific name of broccoli is Brassica oleracea
    L. var italica Plank.
  • Broccoli is known as the Crown Jewel of
    Nutrition since it posses all the nutrients
    namely vitamins, minerals, secondary metabolites
    and fiber proclaiming its exceptional health
    benefits.
  • Leaf and stem parts of broccoli exhibit certain
    levels of antioxidant properties. Therefore, a
    proper stem or leaf processing or treatment to
    develop a new type of product could enhance the
    utilization of broccoli.

21
Role of Broccoli in Diabetes
  • Glucose oxidation is believed to be the main
    source of free radicals. Hyperglycemia is also
    found to promote lipid peroxidation of low
    density lipoprotein (LDL) by a superoxide-dependen
    t pathway resulting in the generation of free
    radicals.
  • Active component Isothiocynate(Sulphoraphane)
  • Minerals K, Ca, Mg, Cl, P and S and trace
    elements such as Fe, Zn, Cu, Mn, and Se.
  • Antioxidants flavanoids, phenolics and Vitamin C

22
Sulphoraphane
  • Significant reduction of molecules in the body
    called Reactive Oxygen Species (ROS).
    Hyperglycaemia can cause levels of ROS to
    increase three-fold and such high levels can
    damage human cells. The results of the study
    showed that Sulforaphane reversed this increase
    in ROS by 73 per cent.
  • Activated a protein in the body called nrf2,
    which protects cells and tissues from oxidative
    stress by activating protective antioxidant and
    detoxifying enzymes. The study showed the
    presence of Sulforaphane in human microvascular
    cells doubled the activation of nrf2.
  • It may help counter processes linked to the
    development of vascular disease in diabetes.
  • It produces enzymes that protect blood vessels by
    reducing tissue damaging substances triggered by
    high blood sugar levels.

23
MINERALS AND VITAMINS
  • Chromium a micronutrient exhibiting lot of health
    benefits is present in broccoli to the level of
    12mcg/100gm .
  • Presence of mineral micronutrients such as zinc,
    chromium and selenium, in broccoli is lucrative
    to be a potential antidiabetic and antiobese
    functional food apart from its chemoprotective
    and cardioprotective role.

24
  • Broccoli is a significant source of flavonoids
    and phenolics such as caffeic and sinapic acids.
    A large number of hydroxycinnamic acid esters of
    kaempferol and quercetin glucosides has been
    characterized .
  • The antioxidant activity of phenolic compounds is
    due to their ability to scavenge free radicals,
    donate hydrogen atoms or electron, or chelate
    metal cations .
  • The structure of phenolic compounds is a key
    determinant of their radical scavenging and metal
    chelating activity, and this is referred to as
    structureactivity relationships (SAR).
  • In the case of phenolic acids, the antioxidant
    activity depends on the numbers and positions of
    the hydroxyl groups in relation to the carboxyl
    functional groupized in broccoli inflorescence.

25
  • Vitamin C is abundant in broccoli and is used as
    a biomarker to identify the nutritional quality
    of organic, conventional, and seasonally grown
    broccoli.
  • Cruciferae seeds and ready-to-eat sprouts are a
    good source of Vitamin K, B1 and B2.
  • Vitamin K (phylloquinone) is a fat-soluble
    vitamin that functions as a coenzyme and is
    involved in blood clotting and bone metabolism,
    and broccoli contain gt100 mcg phylloquinone/100 g
    vegetable, either raw or cooked.
  • Apart from these vitamins, broccoli also contains
    good quantities of antioxidant vitamins namely
    tocopherols and ascorbic acid and carotenoids
    (luetin and zeaxanthin)

26
Jaggery (10g)
Banana (20g)
Cauliflower leaf powder (2.5g)
Malted pearl millet (5g)
Whey water (63ml)
Functional beverage
  • Supplementation f 200 ml of developed functional
    beverage by using 5gm of cauliflower leaf powder
    ,10 gm pearl millet, 20 gm jaggery, 40 gm banana
    ,126 ml of whey, significantly increased blood
    glucose level , serum retinol level and
    haemetological profile of the adolescent girls.
  • It also help to prevent fluid loss and reduce the
    fatigue level which in turn bring about full
    sport potential.

27
  • Significant (plt0.01) increase was observed in
    heamoglobin (9.42), mean corpuscular volume
    (2.08 ), packed cell volume (3.35 ), mean
    corpuscular haemoglobin concentration (1.73),
    blood glucose level (12.7 ) and serum retinol
    level (5.46 ) of the subjects.
  • The consumption of underutilized food such as
    whey water, pearl millet, cauliflower leaf powder
    by the adolescent girls should be encouraged to
    improve their nutritional status.

28
Medicinal Plants
  • Use of medicinal plants like aloe vera, bael and
    stevia, by the diabetics should be encouraged as
    they help to manage the blood glucose level and
    lipid profile of the diabetics.

29
Aloe vera
  • Each leaf is composed of three layers
  • An inner clear gel that contains 99 water and
    rest is
  • made of glucomannans, amino acids, lipids,
    Phytosterols
  • vitamins.
  • The middle layer of latex which is the bitter
    yellow sap and
  • contains anthraquinones and glycosides.
  • The outer thick layer called as rind which has
    protective
  • function.

30
CHEMICAL COMPOSITION
31
BENEFITS OF ALOE VERA
32
  • Supplementation of 100mg and 200mg of Aloe vera
    L. gel powder along with nutrition counselling
    significantly reduced blood glucose levels and
    blood pressure along with an improvement in lipid
    profile of the non - insulin dependent diabetics.
  • It is Non- toxic, safe ,cost effective, easy to
    consume in capsule form

33
Stevia
34
  • Stevia helps in reduction of blood glucose levels
  • Stimulates insulin secretion via a direct action
    on pancreatic ß-cells.
  • Decreases glucagon levels.
  • Decreases insulin resistance and increases
    insulin utilization.
  • Has gluconeogenesis slowing down action.
  • Acts to increase skeletal muscle glucose
    transport system to increase glucose disposal.

35
  • Sugar provides 4 Kcal per gram. Consumption of
    sugar adds extra calories to our diet. These
    extra calories lead to weight gain and obesity.
  • Since stevia is a ZERO CALORIE sweetener. Its
    consumption would help to reduce calorie intake
    and thus contribute to weight loss.
  • Stevia upto 75 mg can be used in place of sugar
    for commonly used sweet preperation.

36
Bael
  • Bael leaf, pulp and seed can be used by the
    diabetics to improve their nutritional status.
  • Various products can be made by using bael pulp.
  • Farmers should be motivated to grow bael as it
    is non-toxic , cost-effective and safe for
    diabetics.

37
CONSTITUENTS OF BAEL AND THEIR MEDICINAL
PROPERTIES
38
Processing of Bael




Bael fruit pulp
Bael seed
Fresh leaves





Dried bael seed


Bael pulp powder
Dried leaves
Bael seed powder
Bael leaves powder
Dried bael pulp

Bael seed capsules
Bael leaves capsules
Bael pulp capsules
39
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