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Someone who is driven by a desire to find solutions. Microbiologist researcher with eight…

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Publications

  • Synbiotics: Effects of prebiotics on the growth and viability of probiotics in food matrices

    Bioactive Carbohydrates and Dietary Fibre

    Synbiotics are a combination of prebiotics and probiotics that have a unique effect on their respective counterparts and the host. Probiotics, which are beneficial live microorganisms, have been extensively studied and commercially explored in multiple products worldwide. Numerous scientific studies have established their positive effects on human and animal health. Incorporating prebiotics into probiotic food products has shown different effects on the growth and viability of probiotics…

    Synbiotics are a combination of prebiotics and probiotics that have a unique effect on their respective counterparts and the host. Probiotics, which are beneficial live microorganisms, have been extensively studied and commercially explored in multiple products worldwide. Numerous scientific studies have established their positive effects on human and animal health. Incorporating prebiotics into probiotic food products has shown different effects on the growth and viability of probiotics. Prebiotics have shown growth-promoting, partial inhibition, dose-dependent, or no effect on the growth and viability of probiotics in different food products. This review discusses synbiotics, probiotics, prebiotics, and specifically the effect of prebiotics on the growth and viability of probiotics in different food matrices. The outcomes depend on multiple factors, including the type and concentration of prebiotics, probiotic strains, and food matrix. Optimization of these parameters can lead to the development of effective synbiotic products that offer numerous human health benefits.
    Keywords: Parabiotic; Prebiotic; Postbiotic; Probiotic; Synbiotic

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  • Relationship Between Antimicrobial Peptides, Probiotics, Postbiotics, and Parabiotics in the Maintenance of a Well-Balanced Gut Ecosystem

    springer

    Diverse microorganisms in the gut ecosystem play a crucial role in human health and extend beyond digestion. Recent studies have highlighted its critical role in preventing gastrointestinal issues, regulating the immune system, and addressing chronic diseases. Imbalances in the gut microbiome can pose a threat to overall well-being, leading to gastrointestinal problems and increased susceptibility to infections. Probiotics, which are living microorganisms, enhance gut microbiota, Probiotics…

    Diverse microorganisms in the gut ecosystem play a crucial role in human health and extend beyond digestion. Recent studies have highlighted its critical role in preventing gastrointestinal issues, regulating the immune system, and addressing chronic diseases. Imbalances in the gut microbiome can pose a threat to overall well-being, leading to gastrointestinal problems and increased susceptibility to infections. Probiotics, which are living microorganisms, enhance gut microbiota, Probiotics, which are living microorganisms, enhance gut microbiota, whereas their metabolic byproducts support immune function and overall gut health. The biological characteristics and selection criteria for probiotics highlight their safety and efficacy. Postbiotics derived from fermentation or metabolic processes play a vital role in health promotion, including immunomodulation, anti-inflammatory effects, and antioxidant activities. Parabiotics, which are nonviable microbial compounds, offer benefits without the concerns of live microorganisms. Parabiotics, being nonviable, present advantages, such as enhanced safety and stability. AMPs have diverse antimicrobial and antifungal activities with potential applications in food processing, biomedical research, and antimicrobial resistance. AMPs synthesized within the gastrointestinal tract may regulate pathogenic bacteria and contribute to microbial equilibrium. Synergistic combinations of AMPs have demonstrated enhanced efficacy against various pathogens. This chapter explores the synergistic interplay between antimicrobial peptides (AMPs), probiotics, postbiotics, and parabiotics in maintaining a balanced gut environment. Future research directions include exploration of the specific metabolic profiles of these components and their therapeutic applications, thereby offering promising prospects for enhancing health and immunity.

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  • Effect of prebiotic supplementation on the low-temperature storage stability and in vitro gastrointestinal tolerance of Bifidobacterium breve and Bifidobacterium longum in lactose and sucrose systems

    Bioactive Carbohydrates and Dietary Fibre

    The objective of this study was to investigate the effect of fructooligosaccharides (FOS) and inulin supplementation on the stability of Bifidobacterium breve and Bifidobacterium longum grown in lactose and sucrose systems over 12-week low-temperature storage at 4 °C. FOS and inulin supplementation in the lactose and sucrose systems improved the low-temperature storage stability of B. breve and B. longum. On week 12, the highest lactic (29.7 ± 0.7%) and acetic acid (28.7 ± 1.3%) concentrations…

    The objective of this study was to investigate the effect of fructooligosaccharides (FOS) and inulin supplementation on the stability of Bifidobacterium breve and Bifidobacterium longum grown in lactose and sucrose systems over 12-week low-temperature storage at 4 °C. FOS and inulin supplementation in the lactose and sucrose systems improved the low-temperature storage stability of B. breve and B. longum. On week 12, the highest lactic (29.7 ± 0.7%) and acetic acid (28.7 ± 1.3%) concentrations were observed in B. breve in 2% lactose with 3% inulin supplementation. In week 12, B. breve auto-aggregation rate and hydrophobicity significantly increased in 2% lactose with 3% inulin supplementation than non-supplemented (2% lactose). At week 0, the co-aggregation of B. longum and B. breve with E. faecalis and E. coli significantly increased compared to non-supplemented media. However, as the storage week proceeded, the co-aggregation ability of B. longum and B. breve drastically declined. FOS and inulin supplementation in these sugar systems significantly improved hydrophobicity, auto-aggregation, and co-aggregation ability with Enterococcus faecalis and Escherichia coli compared to non-supplemented media. In addition, the increase in the bacterial survival rate in vitro gastrointestinal tolerance assay showed that FOS and inulin supplementation in these sugar systems improved the gastric-intestinal tolerance of B. breve and B. longum.

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  • Efficacy of Inulin Supplementation on the Growth and Survivability of Bifidobacterium longum and Bifidobacterium breve in Model Sugar Systems

    ACS publications

    The efficacy of inulin supplementation (0.5%, 1%, 2%, 3%, and 4%) on the growth and survivability of Bifidobacterium longum and Bifidobacterium breve in 2%, 3%, and 4% sucrose, fructose, glucose, and lactose systems was investigated. The highest growth-promoting effect was observed in 3% sucrose with 1% inulin supplementation for B. longum and 2% lactose with 3% inulin supplementation for B. breve after 24 h at 37 °C. In a survival study, lactose supplemented with inulin showed improvement in…

    The efficacy of inulin supplementation (0.5%, 1%, 2%, 3%, and 4%) on the growth and survivability of Bifidobacterium longum and Bifidobacterium breve in 2%, 3%, and 4% sucrose, fructose, glucose, and lactose systems was investigated. The highest growth-promoting effect was observed in 3% sucrose with 1% inulin supplementation for B. longum and 2% lactose with 3% inulin supplementation for B. breve after 24 h at 37 °C. In a survival study, lactose supplemented with inulin showed improvement in the cell viability of B. longum followed by sucrose, fructose, and glucose at 37 °C for 10 days. As for B. breve, inulin supplementation in sucrose and lactose showed improved cell viability more than fructose and glucose. This study demonstrated that the beneficial effect of inulin supplementation on probiotics like Bifidobacterium can be achieved but was dependent on the concentration and type of sugar present, concentration of inulin, and its efficacy differed between bacterial strains.

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  • Growth and survival of Bifidobacterium breve and Bifidobacterium longum in various sugar systems with fructooligosaccharide supplementation

    Journal of Food Science and Technology (JFST), Springer

    This study aims to investigate the effect of fructooligosaccharide (FOS) (0.5, 1, 2, 3, and 4%) supplementation on the growth and survival of Bifidobacterium breve and Bifidobacterium longum in glucose, fructose, lactose, and sucrose (2, 3, and 4%) systems with 24-h growth and 10-day survival assays at 37 °C. FOS supplementation showed a higher growth-promoting effect on B. longum than B. breve in various sugar systems. The highest percentage of increase in growth index, 78.5%, was observed…

    This study aims to investigate the effect of fructooligosaccharide (FOS) (0.5, 1, 2, 3, and 4%) supplementation on the growth and survival of Bifidobacterium breve and Bifidobacterium longum in glucose, fructose, lactose, and sucrose (2, 3, and 4%) systems with 24-h growth and 10-day survival assays at 37 °C. FOS supplementation showed a higher growth-promoting effect on B. longum than B. breve in various sugar systems. The highest percentage of increase in growth index, 78.5%, was observed with 4% sucrose supplemented with 0.5% FOS in B. longum. In comparison, the highest percentage increase in growth index, 5.6 and 6.6%, was observed in the presence of 2% glucose and 4% lactose supplemented with 0.5% FOS in B. breve. In survival assay, FOS supplementation (0.5–4%) in a 2% lactose system showed the highest positive effect on the cell viability of B. longum on day-10. As for B. breve, FOS supplementation (1 and 2%) in the 2% sucrose system showed the highest positive effect on the cell viability, followed by FOS supplementation (0.5, 3, and 4%) in 2% sucrose and FOS supplementation (3 and 4%) in 2% lactose on day-10. This study demonstrated that the efficacy of FOS supplementation was depended on its concentration, sugar system and its concentration, and Bifidobacterium strain.

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  • Viability, Storage Stabilityand In Vitro Gastrointestinal Tolerance of Lactiplantibacillus plantarum Grown in Model Sugar Systems with Inulin and Fructooligosaccharide Supplementation

    Fermentation MDPI

    This study aims to investigate the effects of inulin and fructooligosaccharides (FOS) supplementation on the viability, storage stability, and in vitro gastrointestinal tolerance of Lactiplantibacillus plantarum in different sugar systems using 24 h growth and 10 days survival studies at 37 °C, inulin, and FOS (0%, 0.5%, 1%, 2%, 3% and 4%) supplementation in 2%, 3%, and 4% glucose, fructose, lactose, and sucrose systems. Based on the highest percentage increase in growth index, sucrose and…

    This study aims to investigate the effects of inulin and fructooligosaccharides (FOS) supplementation on the viability, storage stability, and in vitro gastrointestinal tolerance of Lactiplantibacillus plantarum in different sugar systems using 24 h growth and 10 days survival studies at 37 °C, inulin, and FOS (0%, 0.5%, 1%, 2%, 3% and 4%) supplementation in 2%, 3%, and 4% glucose, fructose, lactose, and sucrose systems. Based on the highest percentage increase in growth index, sucrose and lactose were more suitable sugar substrates for inulin and FOS supplementation. In survival studies, based on cell viability, inulin supplementation showed a better protective effect than FOS in 3% and 4% sucrose and lactose systems. Four selected sucrose and lactose systems supplemented with inulin and FOS were used in a 12-week storage stability study at 4 °C. Inulin (3%, 4%) and FOS (2%, 4%) supplementation in sucrose and lactose systems greatly enhanced the refrigerated storage stability of L. plantarum. In the gastrointestinal tolerance study, an increase in the bacterial survival rate (%) showed that the supplementation of FOS in lactose and sucrose systems improved the storage viability of L. plantarum. Both inulin and FOS supplementation in sucrose and lactose systems improved the hydrophobicity, auto-aggregation, co-aggregation ability of L. plantarum with Escherichia coli and Enterococcus faecalis

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  • Effect of inulin and fructooligosaccharide supplementation on the growth and survival of Lactobacillus casei in model sugar systems

    journal of food processing and preservation

    Inulin and fructooligosaccharides (FOS) are widely used prebiotics. In this study, model sugar systems such as glucose, fructose, lactose, and sucrose (2%, 3%, and 4%) were used to investigate the effect of inulin or FOS (0.5%, 1%, 2%, 3%, and 4%) supplementation on the growth and survival of Lactobacillus casei. The highest growth‐promoting effect was observed with 2% lactose with 4% inulin or 4% FOS supplementation. Based on the highest percentage increase in growth index (GI) of L. casei…

    Inulin and fructooligosaccharides (FOS) are widely used prebiotics. In this study, model sugar systems such as glucose, fructose, lactose, and sucrose (2%, 3%, and 4%) were used to investigate the effect of inulin or FOS (0.5%, 1%, 2%, 3%, and 4%) supplementation on the growth and survival of Lactobacillus casei. The highest growth‐promoting effect was observed with 2% lactose with 4% inulin or 4% FOS supplementation. Based on the highest percentage increase in growth index (GI) of L. casei, the most suitable sugar for inulin and FOS supplementation was lactose, followed by fructose and glucose. In growth assay, based on the percentage increase in GI, FOS (36.8%) was better than inulin (20.1%) for supplementation in the lactose system. In the glucose system, based on the percentage increase in GI, inulin (7.3%) was better than FOS (6.5%) for supplementation. Likewise, inulin (14.6%) was better than FOS (11.1%) for supplementation in fructose system.

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  • Production and characterization of biosurfactant from Halomonas sp. BRI3

    Indian Journal of Biochemistry and Biophysics (IJBB), NISCAIR-CSIR, India

    In this report, the halotolerant bacterium Halomonas sp. BRI3 was studied for its biosurfactant (BS) producing ability. Effect of carbon source, nitrogen source, temperature, inoculum concentration and incubation on the production of BS was studied and maximum production (14 g/L) was obtained in modified medium containing 1% glucose, yeast extract and ammonium chloride (0.25% each) with 5% inoculum concentration at 30°C after 48 h, which was 2.8 fold higher as compared to original medium (5…

    In this report, the halotolerant bacterium Halomonas sp. BRI3 was studied for its biosurfactant (BS) producing ability. Effect of carbon source, nitrogen source, temperature, inoculum concentration and incubation on the production of BS was studied and maximum production (14 g/L) was obtained in modified medium containing 1% glucose, yeast extract and ammonium chloride (0.25% each) with 5% inoculum concentration at 30°C after 48 h, which was 2.8 fold higher as compared to original medium (5 g/L). Highest emulsification index (72%) of crude BS was obtained with kerosene followed by n-hexane > crude oil > n-heptane > soybean oil > hexadecane > mustard oil > olive oil > sesame oil. Our hydrocarbon degradation experiments using crude oil and soybean oil revealed 40% decrease in crude oil and 60% decrease in soybean oil concentration after 50 days in presence of glucose, whereas, it was 20% and 50% in the absence of glucose, respectively. Based on TLC and FTIR analysis, the BS is chemically a glycolipo protein, demonstrated an significant antimicrobial and antiadhesive activity. We observed significant stability of BS over wide range of temperature (40 to 120°C) and pH (5.0 to 11.0), suggesting its potential for application in food, pharmaceutical and cosmetics industries.

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  • Increase in production of biosurfactant from Oceanobacillus sp. BRI 10 using low cost substrates, SJST, 38(2).

    SJST

    The Antarctic isolate Oceanobacillus sp. BRI10 producing biosurfactant(BS) was cultivated in media containing different low cost carbon and nitrogen sources. Initially glucose in basal salt medium was replaced individually with sugarcane juice, whey and local commercial table sugar. Maximum emulsification index (E24) of 67.4% was obtained with sugarcane juice. Further, effect of various nitrogen sources was examined on BS production. Among them sodium nitrate was found to be the most suitable…

    The Antarctic isolate Oceanobacillus sp. BRI10 producing biosurfactant(BS) was cultivated in media containing different low cost carbon and nitrogen sources. Initially glucose in basal salt medium was replaced individually with sugarcane juice, whey and local commercial table sugar. Maximum emulsification index (E24) of 67.4% was obtained with sugarcane juice. Further, effect of various nitrogen sources was examined on BS production. Among them sodium nitrate was found to be the most suitable compound. E24 increased to 68.74% in the presence of sugarcane juice and sodium nitrate. The yield of biosurfactant in this medium was 14.25g l-1. The chemical characterization of biosurfactant revealed its glycolipoprote in nature consisting of lipids, carbohydrates, and proteins in the ratio of 4:94:2. Our results indicate a 14-fold increase in the yield and eight times decrease in the cost of production without major difference in the chemical nature of the biosurfactant, with respect to control. This is a significant result with regards to scale-up studies, recovery, and application.
    Keywords: antarctic, biosurfactant, cost effective, glycolipoprotein, sugarcane juice, yield

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  • Non-dairy functional foods:Potential of probiotics. In: Neelam Garg, Shadia Mohammad Abdel Aziz, Abhinav Aeron, eds. Microbes in Food and Health.

    Springer, 978-3-319-25275-9,978-3-319-25277-3

    About this book

    This book gives an overview of the physiology, health, safety and functional aspects of microorganisms present in food and fermented foods. A particular focus is on the health effects of probiotics and non-dairy functional foods. The book deals also with microbes that cause food spoilage and produce toxins, and the efficiency of edible biofilm in the protection of packaged foods. Several chapters are devoted to the occurrence of Listeria pathogens in various food sources.…

    About this book

    This book gives an overview of the physiology, health, safety and functional aspects of microorganisms present in food and fermented foods. A particular focus is on the health effects of probiotics and non-dairy functional foods. The book deals also with microbes that cause food spoilage and produce toxins, and the efficiency of edible biofilm in the protection of packaged foods. Several chapters are devoted to the occurrence of Listeria pathogens in various food sources. Further topics are fortified foods, the role of trace elements, and the preservation of food and extension of food shelf life by a variety of measures.

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Projects

  • Collection and Isolation of micro algae from diverse shallow aquatic habitats with autecological and syneacological assessment of potential strains of Reliance interest

    -

    Isolation and purification of microalgae from the diverse environment, media optimization and formulations for microalgal growth, screening for biofuel production and other metabolites, ecological analysis of sampling area, team management and coordination, Data processing

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  • Optimization of media for Biosurfactant production and functional characterization of Biosurfactant produced by halo tolerant isolate

    -

    The main aim of the dissertation is to Optimize media for the production of Biosurfactant and their functional characterization. This included several tests essential for biosurfactant characterization, such as calculation of E24%, cell hydrophobicity, stability test, Antimicrobial activity, Anti adhesion activity, and Protein: carbohydrate: lipid ratio.

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  • Cost Effective Medium for the Biosurfactant Production from Marine Isolate

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    Optimize medium for biosurfactant production from marine isolate using cheap and cost-effective sources of the medium.

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Honors & Awards

  • Gold Medal

    Government Model Science College (Autonomous), Jabalpur (M.P.)

    Awarded Late Bhanu Pratap Singh smruti swaran padak for scoring highest mark in Bachelor’s of science, Government Model Science College (Autonomous), Jabalpur (M.P.) for the year 2010.

  • Gold Medal

    Government Model Science College (Autonomous), Jabalpur (M.P.)

    Awarded Late Byomkesh Ganguly smruti swaran padak for scoring highest mark in Bachelor’s of science, Government Model Science College (Autonomous), Jabalpur (M.P.) for the year 2009.

  • Excellence Award

    Mitsubishi Impression – Gallery Festival of Asian Children’s Art

    Excellence Award in Mitsubishi Impression – Gallery Festival of Asian Children’s Art in
    Honor of the International Literacy year, August 2002.

Test Scores

  • TOEFL

    Score: 102

Languages

  • Oriya

    Native or bilingual proficiency

  • Hindi

    Full professional proficiency

  • English

    Full professional proficiency

Organizations

  • Monash University Postgraduate Association

    Publicity

    - Present

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