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Health Benefits Of Dietary Prebiotics

Prebiotics convey been an integral percentage of normal human diet for many centuaries. Prebiotics are essential specific colonic nutrients that convey the potential to considerably influence whole body’s physiology as well as consequently wellness as well as wellbeing. Prebiotics impact specifically as well as selectively the indigenous beneficial bacteria. Prebiotics are able to alter the colonic microbiota toward a healthier composition past times increasing for example, numbers of saccharolytic species spell reducing putrefactive microorganisms. Some prebiotics are added to foods to meliorate nutrient lineament characteristics such equally oral cavity experience as well as other textural aspects. Prebiotics convey been used equally depression calorie obese replacers. Human milk tin last considered equally the master prebiotic for gut microflora administration inwards pectus –fed infants.


Prebiotic is a non-digestible nutrient component which beneficially affects the host past times selectively stimulating the growth of and/ or activating the metabolism of ane (or more) wellness promoting bacteria inwards the intestinal tract (Gibson as well as Roberfroid 1995).
H5N1 dietary probiotic is a selectively fermented component that allows specific changes, inwards the composition and/or activity of the gastrointestinal microbiota, thence confers upon host wellbeing as well as wellness (Gibson et al 2004).

Prebiotic concept

H5N1 prebiotic is a non-digestible nutrient component that beneficially affects the host past times selectively stimulating the growth and/or activity of ane or a express position out of bacteria inwards the colon, as well as thence improves host health. In lodge for sec nutrient component to last classified equally a prebiotic it must
1)  Be neither hydrolysed nor absorbed inwards the upper percentage of the gastrointestinal tract;
2) Be a selective substrate for ane or a express position out of beneficial bacteria commensal to the colon, which are stimulated to grow and/or are metabolically activated;
3) Consequently, last able to alter the colonic industrial plant life inwards favour of a healthier composition and
4) Induce luminal or systemic effects that are beneficial to the host health.
Synbiotics –probiotics may last used inwards conjunction alongside specific substrates (prebiotics) for growth (e.g. a fructooligosaccharide inwards conjunction alongside a Bifidobacterial strain or lactitol inwards conjunction alongside a lactobacillus organism). This combination could meliorate the survival of the probiotic organism inwards the host because its specific substrate is readily available for its fermentation.

Recognized prebiotics

The mutual prebiotics inwards usage include fructo-oligosaccharides (FOS), galcto-oligosacchardes (GOS),soy-oligosaccharides (SOS), inulins, lactulose as well as pyredextrins,. The bulk of studies carried out to appointment convey focused on inulin, FOS as well as GOS (Macfarlane et al 2008).

Emergent prebiotics

Emergent prebiotics include genti-oligosaccharides,gluco-oligosaccharides, isomalto-oligosaccharides(IMO),lactosucrose, levans, pectic-oligosaccharides,resistant starch, refined saccharify alcohols as well as xylo-oligisaccharides (XOS).

Prebiotic machinery of action

1. Produce brusk chain obese acids during fermentation of probiotic carbohydrates.
2. Increase fecal weight as well as mildly trim down luminal colon pH.
3. Stimulate the growth of refined saccharify fermenting bacteria.
4. Lower the concentration putrefactive, toxic, mutagenic or genotoxic substances.
5. Decrease the concentration of nitrogenous end-products as well as reductive enzymes.
6. The Bifidobacteria as well as lactobacilli present depression b-glucuronidase as well as nitroreductase activity.
7. Enhance immunity as well as modulate mucin production.

Prebiotic nutrient sources

Fructooligosaccharide (FOS) is a naturally occurring prebiotic chemical compound constitute inwards many edible sources such equally artichokes, bananas, honey, onion, garlic, barley as well as others. Another prebiotic chemical compound inulin is naturally constitute inwards chicory roots, wheat, onion, garlic, bananas, fruits as well as vegetables.Examples of nutrient sources rich inwards prebiotics are whole grain, honey, banana, garlic,onion,tomato, leek, artichoke as well as chicory.

Prebiotic characteristics

1.       Non-digestible or partially digestible
2.       Non-absorbable inwards the pocket-size intestine
3.       Well fermented past times beneficial bacteria inwards the gut as well as
4.       Selective stimulation of growth as well as activity of intestinal bacteria.

Metabolic fate of prebiotics

Inulin as well as oligofructose are non hydrolysed inwards the mouth, tummy as well as pocket-size intestine. In the large intestine, they undergo consummate anaerobic fermentation past times bacteria. They make non contribute whatever calories. They are completely fermented inwards the colon, as well as so inulin is non excreted inwards the stool.

Prebiotics as well as dietary fibres

Prebiotics as well as dietary fibres are non digested past times human digestive enzymes, merely prebiotics are fermented selectively inwards the colon as well as exert their wellness effects via colonic microbiota. Dietary fibre on the other paw may non last fermented at all as well as exert wellness effects inwards other ways for lawsuit improved bowel function.

Colonic microbial organisation

The colonic microbial organisation consists of broad arrive at of bacterial species, a diversity of dissimilar metabolic niches, bacterial habitats as well as interrelationships. In full general intestinal bacteria may last divided into species that exert either harmful or beneficial effects on the host. Pathogenic or harmful effects include diarrhea, infections, liver damage, carcinogenesis as well as intestinal putrefaction; wellness promoting effects may last caused past times the inhibition of growth of harmful bacteria, stimulation of immune functions, lowering of gas distension problems, improved digestion as well as absorption of essential nutrients as well as synthesis of vitamins.

Health promoting functions of Bifidobacteria

Bifidobacterium is a major grouping of saccharolytic bacteria inwards the colon as well as constitutes upwards to 25% of the full population inwards the gut of adult as well as 95% inwards the novel borns (Kawerze et al 1981). Bifidobacteria make strong acids equally metabolic terminate products (acetate, lactate), lower the pH as well as may exert an antibacterial effect. Bifidobacteria make vitamins largely of the B – group. Bifidobacteria make sure as shooting immunomodulators, which promote immunological assail on malignant cells. Bifidobacteria convey been used to restore the normal intestinal industrial plant life during antibiotic therapy (Korshunov et al 1985). 

Health benefits of  dietary prebiotics

1)      Increase the absorption of dietary minerals such equally calcium, magnesium as well as iron.
2)      Reduce the opportunity of colon cancer.
3)      Reduce cholesterol as well as blood lipids.
4)      Prevent alimentary canal infections.
5)      Increase growth of Bifidobacteria, which has next beneficial effects:
i)        produces nutrients such equally B-group vitamins as well as folic acid.
ii)       Produces digestive enzymes.
iii)     Reduces nutrient intolerance past times utilizing relaxation nutrients from the upper gut.
iv)     Improves nutrient management.
v)      Reduces liver toxins i.e. blood amines as well as ammonia, past times using them equally fuels.
vi)     Competitive elimination of pathogenic microorganisms.


Prebiotics are non-digestible nutrient ingredients. They are selectively fermented past times intestinal bacteria ( e.g. lactobacilli, Bifidobacteria). Potential wellness benefits of prebiotics include increased bioavailability of dietary minerals as well as reduced risks of diverse diseases such equally cancer, intestinal infections, cardiovascular disorders, obesity as well as diabetes. Prebiotics are naturally available inwards several foods such equally whole grains, onion, garlic, bananas, fruits as well as vegetables.
                            Prebiotics are effective for gut health



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