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Probiotics and novel digestion models for functional food ingredients

Abstract

Complete text of publication follows. A number of factors compromise the health of modern people: stressful lifestyle, unbalanced nourishment, excessive consumption of refined foods with a big measure, admission of different chemical agents into the human body. These factors harm directly or indirectly the intestinal activity, that forms a considerable part of the immune system, including the production of essential substances that have beneficial effects on the human body. The role of the so-called prebiotics (e.g. inulin, various oligosaccharides, raffinose, resistant starch etc.) is to prevent and reduce the damage of useful microbes, which are termed as probiotics. These substances selectively facilitate the propagation of probiotic bacteria (e.g. Bifidobacterium bifidum, Bifidobacterium longum, Enterococcus faecium, Lactobacillus acidophilus), therefore increase the rate of the synthesis of vitamin B and of beneficial short chain fatty acids, improve the absorption of minerals, decrease the level of cholesterol, triglycerides, insulin, glucose, ammonia and uric acid and improve the functioning of the immune system. The majority of the examination results about prebiotics are based on clinical dietary and animal experiments. In contrast to this we simulated the process of digestion and the effect of prebiotics on probiotic and non-probiotic bacteria selected by us in an artificial  More>>
Authors:
Pal, Karoly; Kiss, Attila; [1]  Szarvas, Jozsef; [2]  Naar, Zoltan [3] 
  1. Eszterhazy Karoly College, Eger (Hungary). EgerFood Regional Knowledge Center (EgerFood-RKC)
  2. Eszterhazy Karoly College, Eger (Hungary). Department of Biochemistry and Molecular Biology
  3. Eszterhazy Karoly College, Eger (Hungary). Department of Botany
Publication Date:
Jul 01, 2009
Product Type:
Conference
Report Number:
INIS-HU-016
Resource Relation:
Conference: 7. International Symposium on Speciation of Elements in Biological, Environmental and Toxicological Sciences, Eger (Hungary), 27-29 Aug 2009; Related Information: In: ISSEBETS 2009. 7. International Symposium on Speciation of Elements in Biological, Environmental and Toxicological Sciences, [60] pages.
Subject:
60 APPLIED LIFE SCIENCES; ANAEROBIC DIGESTION; BACTERIA; BEVERAGES; ENZYMES; FOOD; INOCULATION; BIOCONVERSION; DIGESTION; MICROORGANISMS; ORGANIC COMPOUNDS; PROTEINS
OSTI ID:
21468011
Research Organizations:
Hungarian Chemical Society (Hungary); Corvinus University of Budapest, Department of Applied Chemistry (Hungary)
Country of Origin:
Hungary
Language:
English
Other Identifying Numbers:
TRN: HU1100819052784
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 36
Announcement Date:
Aug 13, 2011

Citation Formats

Pal, Karoly, Kiss, Attila, Szarvas, Jozsef, and Naar, Zoltan. Probiotics and novel digestion models for functional food ingredients. Hungary: N. p., 2009. Web.
Pal, Karoly, Kiss, Attila, Szarvas, Jozsef, & Naar, Zoltan. Probiotics and novel digestion models for functional food ingredients. Hungary.
Pal, Karoly, Kiss, Attila, Szarvas, Jozsef, and Naar, Zoltan. 2009. "Probiotics and novel digestion models for functional food ingredients." Hungary.
@misc{etde_21468011,
title = {Probiotics and novel digestion models for functional food ingredients}
author = {Pal, Karoly, Kiss, Attila, Szarvas, Jozsef, and Naar, Zoltan}
abstractNote = {Complete text of publication follows. A number of factors compromise the health of modern people: stressful lifestyle, unbalanced nourishment, excessive consumption of refined foods with a big measure, admission of different chemical agents into the human body. These factors harm directly or indirectly the intestinal activity, that forms a considerable part of the immune system, including the production of essential substances that have beneficial effects on the human body. The role of the so-called prebiotics (e.g. inulin, various oligosaccharides, raffinose, resistant starch etc.) is to prevent and reduce the damage of useful microbes, which are termed as probiotics. These substances selectively facilitate the propagation of probiotic bacteria (e.g. Bifidobacterium bifidum, Bifidobacterium longum, Enterococcus faecium, Lactobacillus acidophilus), therefore increase the rate of the synthesis of vitamin B and of beneficial short chain fatty acids, improve the absorption of minerals, decrease the level of cholesterol, triglycerides, insulin, glucose, ammonia and uric acid and improve the functioning of the immune system. The majority of the examination results about prebiotics are based on clinical dietary and animal experiments. In contrast to this we simulated the process of digestion and the effect of prebiotics on probiotic and non-probiotic bacteria selected by us in an artificial digestion model, the Atlas Potassium reactor system. The instrument enabled the control of pH, temperature, dosage of digestion enzymes and juices (saliva, gastric juice, bile and duodenal juice) and anaerobity in the course of the experiment. In our experiments we investigated different bakery products and biscuits containing various prebiotic ingredients, e.g. inulin and other fructo oligosaccharides. In the digestion model the different bakery products and biscuits got through the simulated oral cavity (pH=6.8), stomach (pH=2-3) and intestine (pH=6.5-7) and might be modified in the course of this travel. Various mixes of the probiotic and non-probiotic bacterial strains (Bif. bifidum + E. coli, Bif. bifidum + Lac. acidophilus + E. coli, Bif. bifidum + Ent. faecium + Lac. acidophilus + E. coli) were added to the model in simulated colon phase, then the digestion continued on the appropriate temperature (37 deg C), pH and under anaerobic atmosphere. The pH decreasing effect of lactic acid producing bacteria was compensated by NaOH. The first sampling was carried out 24 hours after inoculation, whereas the second one was performed 36 hour after inoculation. At the same time preparation of dilution series and inoculation of the bacterial strains onto the adequate selective plates were performed. Based on the number of colonies counted on the selective plates we could see whether the prebiotics did help the propagation of probiotic strains against the non-probiotic strain.}
place = {Hungary}
year = {2009}
month = {Jul}
}