The influence of food additives on the number of individual representatives of intestinal miсroflora
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2021-10-13 09:08
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TIMOSHKO, Maria, STRUTINSKY, Tudor, STROKOVA, Valentina. The influence of food additives on the number of individual representatives of intestinal miсroflora. In: Microbial Biotechnology, 12-13 octombrie 2016, Chișinău. Chișinău, Republica Moldova: Institutul de Microbiologie şi Biotehnologie, 2016, Ediția 3, p. 110.
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Microbial Biotechnology
Ediția 3, 2016
Conferința "Microbial Biotechnology"
Chișinău, Moldova, 12-13 octombrie 2016

The influence of food additives on the number of individual representatives of intestinal miсroflora


Pag. 110-110

Timoshko Maria, Strutinsky Tudor, Strokova Valentina
 
Institute of Physiology and Sanocreatology of the ASM
 
Disponibil în IBN: 14 martie 2019



Teza

Earlier we noted that the number of intestinal bacteria is depending on various environmental factors, including food one. The analysis of the existing information revealed that food additives are generally applied to change the functionality of food, due to the fact that they influence the development of macro- and microorganisms. For this purpose, for example, the lactulose is used in the production of fermented milk with bifidobacterium, because it possesses bifidogenesis properties (stimulation of reproduction process of such bacteria). The above premise is the basis for the current research, aimed to determine the number of individual representatives of intestinal microflora as influenced by food additives, notably the ones containing lactulose. The study was conducted on four groups of test animal (guinea pigs). Three food additives, from which two were specially developed («Presan» and «Stim») and one containing the recommended lactulose (the commercial name «Medulac-WM»), were used. From all experimental animals, the intestinal content was studied at the beginning and at the end of the experimental period to determine the individual representatives of microflora of the digestive tract of obligate and facultative genera (Bifidobacterium, Lactobacillus, Escherichia and Proteus). As a result, it was determined that during the experimental period, the body weight of all test subjects increased. However, it should be noted that the growth rate at the end of experience differs with the one at the beginning. If in the control group it increased by only 7,5%, in the experimental groups – by 15,65% ; 18,80% and 13,60% respectively. The obtained data showed that in the control group the number of bacteria of obligate genera (Bifidobacterium and Lactobacillus) increased slightly (by 2,24 and 3,59% respectively), and facultative genera (Escherichia and Proteus) - more intensively (by 12,85 and 26,20%), in comparison with the beginning of experience. At the same time, the animals from experimental groups (II-IV) have the Bifidobacterium and Lactobacillus quantitative indices considerably increased (with 28,62 and 31,35%; with 42,54 and 36,32%, and also with 15,26 and 19,07%), and Escherichia and Proteus - decreased (respectively by 20,20 and 21,90%; 36,71 and 100,0%; 13,16 and 28,99%). The difference was noted as well in comparison with control group: representatives of obligate genera of microflora was more numerous by 21,79 and 43,51%; 41,75 and 51,15%, and 23,07 and 31,48%; and facultative genera - by 23,75 and 37,15%; 39,44 and 100%, and 23,05 and 39,49% respectively. These data confirmed that all tested food additives positively influenced both animals, and the number of the intestinal bacteria genera. However, the most intensive growth was recorded for the «Stim» additive. Thus, it is established that the tested food additives had a positive influence on development of the test animals and on the quantitative indices of intestinal microorganisms for the studied genera. It is confirmed by both the gain of body weight and changes in the number of obligate and facultative genera of microorganisms. The quantity of bacteria of the genera Bifidobacterium and Lactobacillus increased, while Escherichia and Proteus - decreased. Therefore, indicators of number of the studied representatives of intestinal microflora can be recommended as informative tests of an assessment of the influence of newly developed compositions for food additives.