NZ748360A - Process for enhancing the viable counts of lactic acid bacteria and useful compositions thereof - Google Patents
Process for enhancing the viable counts of lactic acid bacteria and useful compositions thereof Download PDFInfo
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Abstract
The present invention disclosed herein describes (i) the growth promotional activity of natural plant based fibres on Bacillus coagulans MTCC 5856; (ii) the combination of natural plant based fibres and Bacillus coagulans MTCC 5856 to inhibit Gram Negative pathogenic bacteria and (iii) the production of short chain fatty acids (SCFA) by Bacillus coagulans MTCC 5856 using plant based natural fibres.
Description
PROCESS FOR ENHANCING THE VIABLE COUNTS OF LACTIC ACID
BACTERIA AND USEFUL COMPOSITIONS THEREOF
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a divisional of New Zealand patent application 728550, which is the
national phase entry in New Zealand of PCT international application
(published as ), and claims benefit of US provisional application Nos.
62043599 and 62063453 filed on 29 August 2014 and 14 October 2014 respectively, all of
which are incorporated herein by reference.
BACKGROUND OF THE INVENTION
[Para0001] FIELD OF THE INVENTION
[Para0002] The invention in general relates to Bacillus coagulans (Lactic acid bacteria).
More specifically, the invention relates to (i) the growth promotional activity of natural plant
based fibers on Bacillus coagulans MTCC 5856; (ii) The production of short chain fatty acids
(SCFA) by Bacillus coagulans MTCC 5856 using plant based natural fibers; and (iii) the
combination of natural plant based fibers and Bacillus coagulans MTCC 5856 to inhibit
Gram negative pathogenic bacteria.
[Para0003] DESCRIPTION OF PRIOR ART
[Para0004] Combining multistrain probiotics (probiotic bacteria) and prebiotics to achieve
enhanced immunosupportive effects is well known in the art. Specifically combining
probiotics with natural plant based fibers to formulate synbiotics is reported as a promising
therapeutic approach (Stig Bengmark and Robert Martindale. “Prebiotics and Synbiotics in
Clinical Medicine”. Nutr Clin Pract vol 20 244–261, April 2005). The success of such an
approach depends on carefully choosing specific probiotic microorganisms whose viable
count is effectively enhanced by natural plant based fibers that are resistant to both enzymatic
and acid hydrolysis in the gut. These studies are critically important to accommodate the
performance of host animals exposed to symbiotic diet regimes given the teaching that there
are limitations to fiber digestion and utilisation by microbes in terms of microbial
accessibility to substrates, physical and chemical nature of fibers (forage) and also kinetics of
the digestive process (Gabriella A. Varga and Eric S. Kolver, “Microbial and Animal
Limitations to Fiber Digestion and Utilization”, J. Nutr. May 1, 1997 vol. 127 no. 5 819S-
823S).
[Para0005] It is the principle objective of the present invention to evaluate the performance
of selected natural fibers (enzyme and acid hydrolysis resistant) to enhance the viable counts
of Bacillus coagulans MTCC 5856.
[Para0006] It is also another objective of the present invention to evaluate the ability of the
synbiotic composition (natural fibers and Bacillus coagulans MTCC 5856) to inhibit
pathogenic Gram negative bacteria.
[Para0007] It is yet another objective of the present invention to evaluate the ability of the
synbiotic composition (natural fibers and Bacillus coagulans MTCC 5856) to produce
desired short chain fatty acids, said property having profound therapeutic applications.
[Para0008] The present invention fulfils the aforesaid objectives and provides further related
advantages; and/or at least provides the public with a useful choice.
SUMMARY OF THE INVENTION
[Para0009] In a first aspect the present invention provides a use of Bacillus coagulans
MTCC 5856 grown in the presence of natural plant fibres selected from the group consisting
of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum seed fibers, Linum
usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers, Zingiber officinale
(Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago ovata (Psyllium)
fibers and Vaccinium oxycoccos (Cranberry) seed fibers, in the manufacture of a medicament
for treating an infection caused by pathogenic E. coli, via increasing the viable colony count
of Bacillus coagulans MTCC 5856 in patient in need thereof.
[Para 0009a] In a second aspect the present invention provides a method of increasing the
viable colony count of Bacillus coagulans MTCC 5856 said method comprising the step of
growing Bacillus coagulans MTCC 5856 in the presence of natural plant fibres selected from
the group consisting of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium
barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut)
fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers,
Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers, wherein
the method is not a method for the treatment of the human or animal body.
[Para 0009b] In a third aspect the present invention provides a method of producing short
chain fatty acids by co-culturing Bacillus coagulans MTCC 5856 with natural plant fibres
selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed fibers,
Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera
(Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit
fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers.
[Para 0009c] Also disclosed is (i) the growth promotional activity of natural plant based
fibers on Bacillus coagulans MTCC 5856; (ii) the combination of natural plant based fibers
and Bacillus coagulans MTCC 5856 to inhibit Gram negative pathogenic bacteria and (iii)
the production of short chain fatty acids (SCFA) by Bacillus coagulans MTCC 5856 using
plant based natural fibers.
[Para0010] Other features and advantages of the present invention will become apparent
from the following more detailed description, taken in conjunction with the accompanying
images, which illustrate, by way of example, the principle of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[Para0011] Figs.1a, 1b and 1c show the graphical representation of the increase in viable
colony count of Bacillus coagulans MTCC 5856 in presence of different natural plant fibers
alone (%, w/v).
[Para0012] Figs. 2a, 2b and 2c show the graphical representation of the increase in viable
colony count of Bacillus coagulans MTCC 5856 in presence of different natural plant fibers
(%, w/v) in MRS media (devoid of dextrose) (0.5, 1.0, 2.0%, w/v).
[Para0013] Fig.3 is the graphical representation of inhibition of E. coli ATCC 25922 growth
by B. coagulans MTCC 5856 when co-cultured in plant based natural fibers as media.
Average mean of viable counts are expressed in log cfu/ml.
[Para0014] Fig.4 shows the production of total short chain fatty acid (acetate, butyrate, and
propionate) by the B. coagulans MTCC 5856 from Fenugreek seed fibers (FSF),
Lycium barbarum seed fibers (LSF), Flax seed fibers (FLSF), Coconut Fibers (CF), Ginger
rhizome fibers (GRF), Amla Fruit Fiber (Soluble + Insoluble) (AFF), Amla Soluble Fibers
(ASF), Amla Insoluble Fibers (AIF), Psyllium husk Fibers (PHF), Cranberry seed Fibers
(CSF), Fructooligosaccharide (FOS), MRS Media (MRS), and MRS Media devoid of
Dextrose (MRSD). Average mean of the SCFAs are expressed in mg per gram of fiber.
DESCRIPTION OF THE MOST PREFERRED EMBODIMENTS
[Para0015] In the most preferred embodiment, described is a method of increasing the viable
colony count of Bacillus coagulans MTCC 5856 said method comprising step of growing
Bacillus coagulans MTCC 5856 in the presence of natural plant fibers selected from the
group consisting of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum
seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers,
Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago
ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers.
[Para0016] In another most preferred embodiment, described is a method of inhibiting
pathogenic Gram negative bacteria said method comprising step of bringing to contact said
Gram negative bacteria with Bacillus coagulans MTCC 5856 co-cultured with natural plant
fibers selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed
fibers, Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera
(Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit
fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers.
[Para0017] In yet another most preferred embodiment, described is a method of producing
short chain fatty acids by co-culturing Bacillus coagulans MTCC 5856 with natural plant
fibers selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed
fibers, Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera
(Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit
fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers. In
alternate embodiments, described is a method of protecting against diet-induced obesity and
insulin resistance in the mammalian gut by administering composition comprising Bacillus
coagulans MTCC 5856 with natural plant fibers selected from the group consisting of
Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum seed fibers, Linum
usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers, Zingiber officinale
(Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago ovata (Psyllium)
fibers and Vaccinium oxycoccos (Cranberry) seed fibers to bring about the effect of
protection against diet induced obesity and insulin resistance.
[Para0018] The specific examples included herein below illustrate the aforesaid most
preferred embodiments of the present invention.
[Para0019] Example I
[Para0020] Method of preparing fibers
[Para0021] Trigonella foenum-graecum (Fenugreek) seed fibers
[Para0022] Trigonella foenum-graecum (also known as Fenugreek) seeds were collected
from local market and milled to course powder (10 mesh pass through). Further, four
volumes of n-hexane was added to 100 gm of Trigonella foenum-graecum seeds course
powder and extracted at reflux temperature. n-Hexane fraction was filtered through
Whatman filter no 1 and again three times same extraction was carried out. After extraction,
retentate was dried at 80°C for 5 h and then this was milled to obtain 40 mesh pass through
powder. In an alternative method, fat or oil from Fenugreek seeds were removed by Super
Critical fluid extraction method using liquid CO as solvent. To increase the dietary fiber
(Galactomannans) content, the enzymatic hydrolysis using Cellulase was carried out. The
galactomannans content was determined by Megazyme kit (K-GALM 03/11) as per the
manufacturer’s instructions (Megazyme International Ireland, Bray Business Park, Bray, Co.
Wicklow, IRELAND).
[Para0023] Lycium barbarum seed fibers
[Para0024] Goji, Goji berry or Wolfberry is the fruit of Lycium barbarum. The fruit of
Lycium barbarum was dried and seeds were separated and milled to course powder. Further,
four volumes of n-hexane was added to 100 gm of Lycium barbarum course powder and
extracted at reflux temperature. n-Hexane fraction was filtered through Whatman filter no 1
and again three times same extraction was carried out. After extraction, retentate was dried at
80°C for 5 h and then this was milled to obtain 60 mesh pass through powder. Total dietary
fiber was determined by Enzymatic-Gravimetric Method (AOAC 985.29).
[Para0025] Linum usitatissimum (Flax seed) fibers
[Para0026] Linum usitatissimum (also known as common flax or linseed or Flax) seeds were
collected and milled to course powder (10 mesh pass through). Further, four volumes of n-
hexane was added to 100 gm of Linum usitatissimum course powder and extracted at reflux
temperature. n-Hexane fraction was filtered through Whatman filter no 1 and again three
times same extraction was carried out. After extraction, retentate was dried at 80°C for 5 h
and then this was milled to obtain 40 mesh pass through powder. Total dietary fiber was
determined by Enzymatic-Gravimetric Method (AOAC 985.29).
[Para0027] Cocos nucifera fibers
[Para0028] A matured coconut was procured from local market and dried. Further, the
endosperm (coconut meat) was chopped to course and uniform size material. Further, four
volumes of n-hexane was added to 100 gm of Cocos nucifera course material and extracted at
reflux temperature. n-Hexane fraction was filtered through Whatman filter no 1 and again
three times same extraction was carried out. After extraction, retentate was dried at 80°C for
h and then this was milled to obtain 60 mesh pass through powder. Total dietary fiber was
determined by Enzymatic-Gravimetric Method (AOAC 985.29).
[Para0029] Zingiber officinale (ginger) rhizome fibers
[Para0030] Zingiber officinale rhizome, ginger root or simply ginger was dried and milled to
course powder (10 mesh pass through). Further, four volumes of n-hexane was added to 100
gm of Zingiber officinale rhizome course powder and extracted at reflux temperature. n-
Hexane fraction was filtered through Whatman filter no 1 and again three times same
extraction was carried out. In an alternative method, fat or oil from Fenugreek seeds were
removed by Super Critical fluid extraction method using liquid CO as solvent. After
extraction, retentate was dried at 80°C for 5 h and then this was milled to obtain 40 mesh pass
through powder. Total dietary fiber was determined by Enzymatic-Gravimetric Method
(AOAC 985.29).
[Para0031] Emblica officinalis (Amla) fruit fibers
[Para0032] Emblica officinalis (Phyllanthus emblica), also known as Emblic, Emblic
myrobalan, Myrobalan, Indian gooseberry, Malacca tree, or Amla from Sanskrit Amalika.
The fruit of Emblica officinalis was procured from local market and dried, pulverized and
passed through 60 mesh. This powder was used for the extraction of fibers. Total dietary
fiber was determined by Enzymatic-Gravimetric Method (AOAC 985.29).
[Para0033] Example 2-Acid Hydrolysis
[Para0034] Two grams of plant based natural fibers listed in Table 1 were dissolved in 100
ml of HC1 (0.10 M) and incubated at 37°C with 100 rpm for 180 min. Samples were taken at
0, 30, 60, 90, 120 and 180 min. Fructooligosaccharide (FOS; Tata Chemicals, India) was also
taken in the study as reference to compare with natural fibers and starch (Potato soluble
starch; HiMedia, Mumbai, India ) was also taken as control. The increase in reducing
carbohydrates was measured by Dinitrosalicylate reagent (Nilsson and Bjorck 1988. Journal
of Nutrition 118, 1482–1486).
Table 1
Total dietary fiber content of plant based natural fibers
Dietary Fibers (%, w/w)
S. No. Natural Fibers
Soluble Fibers Insoluble Fibers Total
1 Trigonella foenum-graecum (Fenugreek) seed fibers 65.42 ±1.2 5.41±0.4 75.24±1.2
2 Lycium barbarum seed fibers ND 38.05±0.9 39.71±1.1
3 Linum usitatissimum (Flax) seed fibers 34.68±0.4 12.73±0.1 50.21±1.5
4 Cocos nucifera (Coconut) fibers 33.16±0.7 36.16±0.2 65.41±1.7
Zingiber officinale (Ginger) rhizome fibers ND 41.55±0.7 42.18±0.8
6 Emblica officinalis (Amla) fruit fibers 10.15±0.2 41.58±0.5 52.07±1.4
- Soluble Fraction 19.04±0.5 1.527±0.1 22.29±0.4
- Insoluble Fraction 27.05±0.7 3.55±0.1 33.03±0.7
7 Plantago ovata (Psyllium) Fibers 51.13±0.8 30.24±0.8 83.24±1.5
8 Vaccinium oxycoccos (Cranberry) seed fibers 10.21±0.6 39.81±07 51.92±1.3
ND, Not detected; Total dietary fiber was determined by Enzymatic-Gravimetric Method
(AOAC 985.29).
[Para0035] Table 2 shows the effect of acid hydrolysis on (0.1 M HCl; 37°C, 100 rpm) on
Plant Based Natural Fibers. Total reducing sugar was determined by Dinitrosalicylic acid
(DNSA) method.
Table 2
Percentage of Total Reducing Sugar
S.No. Plant Based Natural Fibers
0 min 30 min 60 min 90 min 120 min 180 min
1 Fenugreek seed fibers 3.79±0.1 3.90±0.1 3.95±0.09 3.33±0.1 4.22±0.2 4.45±0.1
2 Lycium barbarum seed fibers 11.91±0.2 12.05±0.2 12.98±0.3 11.94±0.4 12.98±0.3 12.51±0.2
3 Flax seed fibers 1.24±0.1 1.89±0.09 1.97±0.1 2.10±0.1 1.98±0.1 2.21±0.1
4 Coconut Fiber 6.11±0.09 6.51±0.2 7.25±0.1 8.35±0.2 9.95±0.2 10.05±0.5
Ginger rhizome fibers 4.02±0.1 7.24±0.5 7.98±0.3 8.1±0.7 7.8±0.2 7.5±0.3
6 Amla Fruit Fiber (Soluble + Insoluble) 16.59±0.2 16.14±0.7 16.84±0.3 15.16±0.4 17.12±0.6 16.98±0.6
7 Amla Soluble Fiber 19.96±0.3 24.75±0.5 24.13±0.6 23.42±0.7 22.76±0.8 23.17±0.5
8 Amla Insoluble Fiber 6.98±0.1 6.74±0.1 6.92±0.2 6.95±0.2 7.18±0.1 7.60±0.1
9 Psyllium husk Fiber 0.62±0.01 1.11±0.09 1.28±0.04 1.42±0.1 1.51±0.1 1.62±0.1
Cranberry seed Fiber 19.70±0.4 19.15±0.3 20.50±0.9 19.76±0.7 19.67±0.9 20.60±0.8
11 Fructooligosaccharide (FOS) 1.48±0.1 6.29±0.1 8.96±0.1 9.63±0.2 10.47±0.2 12.52±0.4
12 Potato Soluble Starch 7.60±0.2 21.43±0.2 21.03±0.5 25.05±0.7 27.11±0.7 34.20±0.3
[Para0036] Example 3-Enzymatic hydrolysis
[Para0037] 100 mg of Pancreatin from Porcine pancreas 4 × USP (Sigma-Aldrich
Corporation St. Louis MO, USA) was dissolved in 100 ml of phosphate buffer (50 mM; pH
7.0). Further, plant based natural fibers (2 gm) were dissolved in above Pancreatin solution
and incubated at 37°C with 100 rpm for 180 min. Samples were taken at 0, 30, 60, 90, 120
and 180 min. FOS was also taken in the study as reference to compare with plant based
natural fibers and starch was also taken as control. The increase in reducing carbohydrates
was measured with a Dinitrosalicylate reagent (Oku et al. 1984. Journal of Nutrition 114,
1574–1581). The effect of enzymatic hydrolysis (0.1% Pancreatin in 20mM PBS pH 7.0;
37°C, 100 rpm) on plant based natural fibers is represented in Table 3. Total reducing sugar
was determined by Dinitrosalicylic acid (DNSA) method.
Table 3
Percentage of total reducing sugar
S. No. Plant Based Natural Fibers
0 min 30 min 60 min 90 min 120 min 180 min
1 Fenugreek seed fibers 7.20±0.1 8.15±0.1 11.85±0.8 11.35±0.8 10.55±0.1 10.70±0.2
2 Lycium barbarum seed fibers 11.86±0.2 18.11±0.8 17.85±0.2 17.75±0.4 17.53±0.8 18.21±0.4
3 Flax seed fibers 1.12±0.1 2.56±0.05 2.57±0.1 2.98±0.1 2.78±0.08 2.88±0.04
4 Coconut Fiber 8.85±0.2 11.65±0.2 14.25±0.5 13.60±0.2 10.90±0.4 11.05±0.08
4.14±0.09 6.94±0.2 7.12±0.3 7.31±0.4 6.81±0.1 6.82±0.09
Ginger rhizome fibers
6 Amla Fruit Fibers (Soluble + Insoluble) 16.05±0.6 16.94±0.2 16.48±0.2 15.96±0.2 17.40±0.5 16.53±0.7
7 Amla Soluble Fibers 20.10±0.7 22.18±0.8 20.51±0.4 20.90±0.8 23.72±0.8 23.07±0.5
8 Amla Insoluble Fibers 7.12±0.1 7.58±0.3 7.94±0.6 8.19±0.1 8.38±0.01 8.45±0.1
9 Psyllium husk Fiber 1.05±0.1 2.21±0.1 2.26±0.1 2.28±0.02 2.29±0.05 3.07±0.1
Cranberry seed Fiber 19.74±0.9 21.99±0.8 24.33±0.3 23.95±0.4 23.58±0.4 23.85±0.7
11 Fructooligosaccharide (FOS) 1.10±0.01 3.37±0.09 3.12±0.09 3.01±0.1 3.43±0.09 3.34±0.08
12 Potato Soluble Starch 7.45±0.05 52.56±0.9 54.06±1.1 52.29±1.2 52.10±1.5 54.52±1.1
[Para0038] Example 4-Growth Promotional activity of Plant Based Natural Fibers with
Bacillus coagulans MTCC 5856
[Para0039] Single isolated colony of Bacillus coagulans MTCC 5856 was inoculated into
MRS broth (pH 7.0±20; Himedia, Mumbai, India) and incubated at 37°C with 120 rpm for
overnight. Plant based natural fibers alone (0.5, 1.0, 2.0%, w/v), and in MRS media (devoid
of dextrose) (0.5, 1.0, 2.0%, w/v) were prepared. MRS broth and MRS (devoid of dextrose)
were also prepared separately. Similarly, Fructooligosaccharide (FOS) was also taken in the
study as reference control to compare with plant based natural fibers. The final pH of all the
media was adjusted to 7.0. Five percent of overnight grown Bacillus coagulans MTCC 5856
culture was inoculated to all the flasks and incubated at 37°C with 100 rpm for 24 h. pH
values at 0 h of incubation and after fermentation (24 h) were also recorded. Samples were
serially diluted in sterile saline and the viable count was enumerated by plating on glucose
yeast extract agar (HiMedia, Mumbai, India) at 0 h and after fermentation (24 h). The plates
were incubated at 37°C for 48 to 72 h. Each analysis was performed in triplicate at two
different occasions. Average mean of viable counts are expressed in log cfu/ml (Figs 1a, 1b
and 1c).
[Para0040] Example 5-Inhibition of E. coli growth
[Para0041] The in-vitro experiment was designed to evaluate the effect of Plant based
natural fibers with probiotic bacteria Bacillus coagulans MTCC 5856 for the inhibition of
Gram negative pathogenic bacteria E. coli. Briefly, 2.0 g of plant based natural fibers were
added to 100 ml of demineralized water. Psyllium husk Fiber and Flax seed fibers were added
0.5 gm to 100 mL of demineralized water due to high gelling property. The pH was adjusted
to 7.0±0.2 and autoclaved at 121°C for 20 min. After sterilization, oxygen reducing enzyme
Oxyrase (Oxyrase® for Broth, Oxyrase, Inc, Mansfield, OH, USA) was added to each flask.
Bacillus coagulans MTCC 5856 was grown on glucose yeast extract agar (Himedia, Mumbai,
India) and E. coli ATCC 25922 was grown on trypticase soya agar (Himedia, Mumbai,
India). Single isolated colony of both the cultures was used and the turbidity of the bacterial
suspension was adjusted to 0.5 McFarland standards (equivalent to 1.5 × 108 colony forming
units (CFU)/ml). One milliliter of E. coli ATCC 25922 was added to flask containing plant
based natural fiber. Similarly, in other group 1 ml of E. coli ATCC 25922 and 1 ml of B.
coagulans MTCC 5856 were added to flask containing plant based natural fiber. The flasks
were incubated at 37°C with 100 rpm for 24 h. Samples were serially diluted in sterile saline
and the viable count of E. coli ATCC 25922 was enumerated by plating on Eosin Methylene
Blue Agar (EMB Agar; HiMedia, Mumbai, India) at 0 h and after fermentation (24 h). The
plates were incubated at 37°C for 48 h. Each analysis was performed in triplicate at two
different occasions. Average mean of viable counts are expressed in log cfu/ml (Fig.3).
[Para0042] Example 6-Production of SCFA by Bacillus coagulans MTCC 5856 using
Plant Based Natural Fibers
[Para0043] The in vitro fermentation with the Bacillus coagulans MTCC 5856 was carried
out by following method described by McBurney and Thompson (McBurney MI and
Thompson LU. (1987) Effect of human faecal inoculum on in vitro fermentation variables.
Brit J Nutr 58: 233-243) with some modifications. Briefly, 2.0 g of glucose or Plant Based
Natural Fibers were added to 100 mL of demineralised water. Psyllium husk Fiber and Flax
seed fibers were added 0.5 gm to 100 ml of demineralised water due to high gelling property.
The pH was adjusted to 7.0±0.2 and autoclaved at 121°C for 20 min. After sterilization,
oxygen reducing enzyme Oxyrase (Oxyrase® for Broth, Oxyrase, Inc, Mansfield, OH, USA)
was added to each flask, to induce anaerobic conditions. Five percent of overnight grown
Bacillus coagulans MTCC 5856 culture was inoculated to all the flasks and incubated at
37°C with gentle shaken rpm for 24 h. The bottles were tightly closed and sealed with
parafilm to maintain anaerobic conditions generated by the enzyme supplement. pH values at
0 h of incubation and after fermentation (24 h) were also recorded. One ml of copper sulphate
(10g/L) was added to each sample to inhibit further microbial growth (Sigma, St. Louis, MO,
USA). The analysis of short chain fatty acids in the aforesaid fermentation samples was done
adopting the following parameters.
Reagents
1. Diethyl Ether (AR Grade)
2. H SO
3. RO Water
4. Sodium Chloride (AR Grade)
Chromatographic conditions
Oven:
Rate Temperature Hold time
Initial 80 ° C 1.00 minute
8° C/minute 200° C 2.00 minute
1. Post run temperature 220 C
2. Post Time 5.0 min
3. Run time 18.00 min
Inlet
Injection Volume 1 μl
Temperature 250 C
Mode Split
Split ratio 10:1
Column
1. DB-FFAP (Terephthalic acid modified poly ethylene Glycol)
2. Dimensions: 30.00m X 250.00 mm X 0.25 µm.
3. Carrier gas : Nitrogen
4. Flow: 1.0 ml / min
Detector
1. Type FID
2. Temperature 350 C
3. Hydrogen Flow 30.0ml/min
4. Air flow 300.0 ml/min
. Make Up Flow 5.0 ml/min
[Para0044] Standard solution preparation
[Para0045] 100.0 mg of each of Fatty acid standard (Acetic acid, Propionic acid and Butyric
acid) was weighed accurately in a 100ml volumetric flask & dissolved in 50.0 mL of water
and made up to the mark with water and mixed well (Stock solution). Further, 10.0 mL of the
stock solution was diluted to 100.0 mL with water and mixed well to get standard solution. 5
mL of standard solution was subjected to extraction as described herein below.
1. Taken 5ml of Standard solution / sample.
2. To Standard solution added 5ml of water with vortexing for 0.5 min.
3. Adjusted pH to 1-1.5 with 3M H SO with vortexing for 0.5 min.
4. Kept diethyl ether in -20°C up to 1hr before adding to the sample /Working Standard.
. Added 10ml of diethyl ether with vortexing for 1 min.
6. Added 4g of Sodium Chloride with vortexing for 1 min.
7. Centrifuged to separate Water Layer & Diethyl Layer
8. Transferred 1.0 mL of Diethyl Ether layer in GC Vial & Injected.
Procedure:
1 μl each of extracted standard solution was injected into the chromatograph in triplicate and
recorded the responses of major peaks due to Acetic acid, Propionic acid and Butyric acid.
The % Relative Standard Deviation for area of peaks due to Acetic acid, Propionic acid and
Butyric acid in triplet injections should not be more than 2.0 %. Injected 1.0 μl each of
extracted sample solution into the chromatograph. The content of Acetic acid, Propionic acid
and Butyric acid was calculated as follows.
Sample area x Std. conc. (ppm)
Content of individual acid in ppm = -----------------------------------
Standard area
[Para0046] The results of the chromatographic analysis are presented in Fig 4 and
represented herein below as Tables 4 and 5.
In Table 4 it may be noted that the production (mg/gram of fiber) of short chain fatty acid
(Acetate, Propionate and Butyrate) was from plant based natural fibers as a sole nutritional
source in vitro batch –culture fermentation with B. coagulans MTCC 5856. FOS was used as
reference control in the study.
In Table 5 it may be noted that the production (mg/gram if fiber) of short chain fatty acid
(acetate, propionate and butyrate) was from plant based natural fibers along with other
nutrients in vitro batch –culture fermentation with B. coagulans MTCC 5856. In MRS media
dextrose was replaced by plant based natural fibers for the production of SCFA. FOS was
used as reference control in the study. MRS media and Media devoid of Dextrose (MRSD)
were also taken to compare for the production of the study.
Table 4
Short Chain Fatty Acids
S. No. Plant Based Natural Fibers (alone) (mg/gram of Fibers)
Acetate Butyrate Propionate
1 Fenugreek seed fibers 69.79 3.36 0.27
2 Lycium barbarum seed fibers 77.18 6.56 0.24
3 Flax seed fibers 109.5 5.93 0.27
4 Coconut Fibers 49.39 0.96 0.14
1.62 0.20 42.35
Ginger rhizome fibers
3.87 0.30 79.99
6 Amla Fruit Fiber (Soluble + Insoluble)
.50 0.23 76.55
7 Amla Soluble Fibers
1.05 0.25 44.10
8 Amla Insoluble Fibers
1.70 0.14 38.11
9 Psyllium husk Fibers
8.64 0.225 69.07
Cranberry seed Fibers
1.07 0.07 21.61
11 Fructooligosaccharide (FOS)
Table 5
Short Chain Fatty Acids
Plant Based Natural Fibers along with
S. No. (mg/gram of Fibers)
MRS Media devoid of dextrose
Acetate Propionate Butyrate
84.67 3.68 0.97
1 Fenugreek seed fibers
61.05 5.41 0.75
2 Lycium barbarum seed fibers
146.86 7.52 1.43
3 Flax seed fibers
51.91 1.01 0.51
4 Coconut Fibers
118.72 7.90 1.32
Ginger rhizome fibers
94.11 6.46 1.06
6 Amla Fruit Fiber (Soluble + Insoluble)
90.99 9.37 1.24
7 Amla Soluble Fibers
79.10 1.70 0.38
8 Amla Insoluble Fibers
53.24 3.23 0.56
9 Psyllium husk Fibers
110.89 9.58 1.69
Cranberry seed Fibers
73.96 4.30 0.24
11 Fructooligosaccharide (FOS)
MRS Media 113.07 1.04 0.05
MRS Media devoid of Dextrose (MRSD) 50.36 1.17 0.16
[Para0047] While the invention has been described with reference to a preferred
embodiment, it is to be clearly understood by those skilled in the art that the invention is not
limited thereto. Rather, the scope of the invention is to be interpreted only in conjunction
with the appended claims.
[Para 0048] The term “comprising” as used in this specification and claims means
“consisting at least in part of”. When interpreting statements in this specification, and claims
which include the term “comprising”, it is to be understood that other features that are
additional to the features prefaced by this term in each statement or claim may also be
present. Related terms such as “comprise” and “comprised” are to be interpreted in similar
manner.
[Para 0049] In this specification where reference has been made to patent specifications,
other external documents, or other sources of information, this is generally for the purpose of
providing a context for discussing the features of the invention. Unless specifically stated
otherwise, reference to such external documents is not to be construed as an admission that
such documents, or such sources of information, in any jurisdiction, are prior art, or form part
of the common general knowledge in the art.
[Para 0050] In the description in this specification reference may be made to subject matter
that is not within the scope of the claims of the current application. That subject matter
should be readily identifiable by a person skilled in the art and may assist in putting into
practice the invention as defined in the claims of this application.
Claims (5)
1. A use of Bacillus coagulans MTCC 5856 grown in the presence of natural plant fibres selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers, in the manufacture of a medicament for treating an infection caused by pathogenic E. coli, via increasing the viable colony count of Bacillus coagulans MTCC 5856 in patient in need thereof.
2. A method of increasing the viable colony count of Bacillus coagulans MTCC 5856 said method comprising the step of growing Bacillus coagulans MTCC 5856 in the presence of natural plant fibres selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers, wherein the method is not a method for the treatment of the human or animal body.
3. A method of producing short chain fatty acids by co-culturing Bacillus coagulans MTCC 5856 with natural plant fibres selected from the group consisting of Trigonella foenum-graecum (fenugreek) seed fibers, Lycium barbarum seed fibers, Linum usitatissimum (Flax) seed fibers, Cocos nucifera (Coconut) fibers, Zingiber officinale (Ginger) rhizome fibers, Emblica officinalis (Amla) fruit fibers, Plantago ovata (Psyllium) fibers and Vaccinium oxycoccos (Cranberry) seed fibers.
4. A use as claimed in claim 1 substantially as herein described and with reference to any example thereof.
5. A method as claimed in claim 2 or 3 substantially as herein described and with reference to any example thereof.
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