Bacillus subtilis: Difference between revisions

Bacillus subtilis
Created page with "{{short description|Catalase-positive bacterium}} {{Speciesbox | image = Bacillus subtilis.jpg | image_caption = TEM micrograph of a ''B. subtilis'' cell in cross-section (scale bar = 200 nm) | genus = Bacillus | species = subtilis | authority = (Ehrenberg 1835)<br />Cohn 1872 | synonyms = * ''Vibrio subtilis'' <small>Ehrenberg 1835</small> * Until 2008, ''Bacillus globigii'' was tho..."
 
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''B. subtilis'' CU1 (2 × 10<sup>9</sup> spores per day) was evaluated in a 16-week study (10 days administration of probiotic, followed by 18 days wash-out period per each month; repeated same procedure for total 4 months) to healthy subjects. ''B. subtilis'' CU1 was found to be safe and well tolerated in the subjects without any side effects.
''B. subtilis'' CU1 (2 × 10<sup>9</sup> spores per day) was evaluated in a 16-week study (10 days administration of probiotic, followed by 18 days wash-out period per each month; repeated same procedure for total 4 months) to healthy subjects. ''B. subtilis'' CU1 was found to be safe and well tolerated in the subjects without any side effects.


''Bacillus subtilis'' and substances derived from it have been evaluated by different authoritative bodies for their safe and beneficial use in food. In the United States, an opinion letter issued in the early 1960s by the [[Food and Drug Administration]] (FDA) designated some substances derived from microorganisms as [[generally recognized as safe]] (GRAS), including [[carbohydrase]] and protease enzymes from ''B. subtilis''. The opinions were predicated on the use of nonpathogenic and nontoxicogenic strains of the respective organisms and on the use of current good manufacturing practices. The FDA stated that the enzymes derived from the ''B. subtilis'' strain were in common use in food prior to January 1, 1958, and that nontoxigenic and nonpathogenic strains of ''B. subtilis'' are widely available and have been safely used in a variety of food applications. This includes consumption of Japanese fermented soy bean, in the form of ''[[Natto]]'', which is commonly consumed in Japan, and contains as many as 10<sup>8</sup> viable cells per gram. The fermented beans are recognized for their contribution to a healthy gut flora and [[vitamin K2|vitamin K<sub>2</sub>]] intake; during this long history of widespread use, ''natto'' has not been implicated in adverse events potentially attributable to the presence of ''B. subtilis''.{{citation needed|date=January 2015}} The natto product and the ''B. subtilis'' natto as its principal component are FOSHU (Foods for Specified Health Use) approved by the Japanese [[Ministry of Health, Labour, and Welfare]] as effective for preservation of health.
''Bacillus subtilis'' and substances derived from it have been evaluated by different authoritative bodies for their safe and beneficial use in food. In the United States, an opinion letter issued in the early 1960s by the [[Food and Drug Administration]] (FDA) designated some substances derived from microorganisms as [[generally recognized as safe]] (GRAS), including [[carbohydrase]] and protease enzymes from ''B. subtilis''. The opinions were predicated on the use of nonpathogenic and nontoxicogenic strains of the respective organisms and on the use of current good manufacturing practices. The FDA stated that the enzymes derived from the ''B. subtilis'' strain were in common use in food prior to January 1, 1958, and that nontoxigenic and nonpathogenic strains of ''B. subtilis'' are widely available and have been safely used in a variety of food applications. This includes consumption of Japanese fermented soy bean, in the form of ''[[Natto]]'', which is commonly consumed in Japan, and contains as many as 10<sup>8</sup> viable cells per gram. The fermented beans are recognized for their contribution to a healthy gut flora and [[vitamin K2|vitamin K<sub>2</sub>]] intake; during this long history of widespread use, ''natto'' has not been implicated in adverse events potentially attributable to the presence of ''B. subtilis''. The natto product and the ''B. subtilis'' natto as its principal component are FOSHU (Foods for Specified Health Use) approved by the Japanese [[Ministry of Health, Labour, and Welfare]] as effective for preservation of health.


''Bacillus subtilis'' has been granted "Qualified Presumption of Safety" status by the [[European Food Safety Authority]].
''Bacillus subtilis'' has been granted "Qualified Presumption of Safety" status by the [[European Food Safety Authority]].