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Probiotics and Antimicrobial Proteins

Kyle B Klopper, Elanna Bester, Shelly M Deane, Gideon M Wolfaardt, Leon M T Dicks
In this study, we report on the formation and resilience of Lactobacillus reuteri HFI-LD5 and Lactobacillus rhamnosus HFI-K2 biofilms cultivated in a CO2 evolution measurement system (CEMS) and exposed to biologically relevant, fasting-state gastrointestinal fluids under continuous flow conditions. For comparative purposes, planktonic and sessile populations of L. reuteri HFI-LD5 and L. rhamnosus HFI-K2 were each exposed to fasting-state gastric fluid (FSGF, pH 2.0) for 2 h, fasting-state intestinal fluid (FSIF, pH 7...
May 21, 2018: Probiotics and Antimicrobial Proteins
Radha Yadav, Suhail Hakeem Khan, Sanusi Bello Mada, Sunita Meena, Rajeev Kapila, Suman Kapila
There is a growing and alarming prevalence that increased serum cholesterol is closely related to increased cardiovascular disease risk. Probiotic consumption could be a safe and natural strategy to combat. Therefore, we sought to examine the cholesterol-lowering potential of co-supplementation of probiotic bacteria Lactobacillus fermentum MTCC: 5898-fermented buffalo milk (2.5% fat) in rats fed cholesterol-enriched diet. Male Wistar rats were divided into three groups on the basis of feed, viz. group 1, fed standard diet (SD); group 2, fed cholesterol-enriched diet (CED); and group 3, fed cholesterol-enriched diet along with L...
May 13, 2018: Probiotics and Antimicrobial Proteins
J J Ahire, N U Mokashe, B L Chaudhari
In this study, we have investigated the effect of probiotic Lactobacillus helveticus CD6 supplemented into simple laboratory fish feed (LFF) and complex, multi-ingredient market fish feed (MFF) on growth performance, antioxidant levels, and essential trace element absorption in goldfish (Carassius auratus). Twenty-four healthy goldfish (average weight 3-4 g) were acclimatized and divided into four experimental diets supplemented with 3 × 107  CFU/g of probiotic (LFF + Pro, MFF + Pro) and without probiotic (LFF, MFF) for 14 weeks...
May 10, 2018: Probiotics and Antimicrobial Proteins
Ourdia Kareb, Mohammed Aïder
The purpose of this review is to highlight the importance of whey as a source of new-generation functional ingredients. Particular interest is given to probiotic growth in the presence of whey derivatives such as lactulose, a lactose derivative, which is a highly sought-after prebiotic in functional feeding. The role of sugar/nitrogen interactions in the formation of Maillard products is also highlighted. These compounds are known for their antioxidant power. The role of bioactive peptides from whey is also discussed in this study...
May 7, 2018: Probiotics and Antimicrobial Proteins
Jian Liu, Deping Han, Yawei Shi
Thaumatin-like proteins (TLPs) are the products of a large, highly complex gene family involved in host defense. TLPs also belong to the pathogenesis-related family 5 (PR-5) of plant defense proteins. Most TLPs exhibit potential antifungal activities, and their accumulation in the plant is related to many physiological processes. In this study, a gene encoding TLP named permatin with an open reading frame of 678 bp encoding a protein of 225 amino acids with a calculated molecular mass of 23.5 kDa was cloned from naked oat leaves...
May 2, 2018: Probiotics and Antimicrobial Proteins
Kavita Sharma, Murugesan Pooranachithra, Krishnaswamy Balamurugan, Gunjan Goel
The present study aimed to analyze the colonization potential of indigenous probiotic strains and to assess their effects on physiology of Caenorhabditis elegans. The protective effect of probiotics was evaluated in terms of increase in life span of the worm through colonization in the intestine. A total of 15 probiotic cultures were evaluated for their effect on mean life span, pharyngeal pumping, and normal reproduction behavior in the worms. The chemotactic behavior in terms of binary choice index was also evaluated...
May 1, 2018: Probiotics and Antimicrobial Proteins
C E Lara-Hidalgo, L Dorantes-Álvarez, H Hernández-Sánchez, F Santoyo-Tepole, A Martínez-Torres, L Villa-Tanaca, C Hernández-Rodríguez
Three yeast strains were isolated from the spontaneous fermentation of guajillo pepper: Hanseniaspora opuntiae, Pichia kudriavzevii, and Wickerhamomyces anomalus, which were identified by amplification of the ITS/5.8S ribosomal DNA. Some probiotic characteristics of these strains were evaluated and compared with one commercial probiotic yeast (Saccharomyces boulardii). The survival percentage of all the yeasts was similar to that of the commercial product. They showed different hydrophobicity characteristics with hydrocarbons, autoaggregation > 90%, and characteristics of co-aggregation with pathogenic microorganisms...
April 25, 2018: Probiotics and Antimicrobial Proteins
Meegun Hong, Dae Hee Han, Jitaek Hong, Dong Joon Kim, Ki Tae Suk
Alcoholic liver disease (ALD) encompasses a broad spectrum of disorders including steatosis, steatohepatitis, fibrosis, and cirrhosis. Despite intensive research in the last two decades, there is currently no Food and Drug Administration-approved therapy for treating ALD. Several studies have demonstrated the importance of the gut-liver axis and gut microbiome on the pathogenesis of ALD. Alcohol may induce intestinal dysbiosis and increased intestinal permeability, which in turn result in increased levels of pathogen-associated molecular patterns such as lipopolysaccharide (LPS) and translocation of microbial products from the gut to the liver (bacterial translocation)...
April 23, 2018: Probiotics and Antimicrobial Proteins
Shahram Agah, Ali Mohammad Alizadeh, Maryam Mosavi, Peyman Ranji, Hossein Khavari-Daneshvar, Farnaz Ghasemian, Sahar Bahmani, Abbas Tavassoli
Based on the ability of the probiotics in the gut microflora modification, they can have the beneficial effects on diseases in the short and/or the long term. In previous study, we revealed that unlike Bifidobacterium bifidum, the amount of Lactobacillus acidophilus remained almost unchanged in mice gut microflora in the long term, indicating more stability of L. acidophilus than B. bifidum which can be used to prevent some incurable diseases such as cancer. Thirty-eight male BALB/c mice were divided into four groups, control, azoxymethane (AOM), L...
April 22, 2018: Probiotics and Antimicrobial Proteins
Muqader Shah, Hafsa Zaneb, Saima Masood, Rifat Ullah Khan, Saima Ashraf, Arbab Sikandar, Hafiz Faseeh Ur Rehman, Habib Ur Rehman
This experiment aimed to investigate the effect of different levels of zinc (Zn) and a probiotic on the growth and intestinal health of broiler chickens. One hundred ninety-two-day-old broiler chicks were randomly assigned to 6 groups. The birds were supplemented with Zn (30 and 60 mg/kg) and a probiotic mixture alone or in combination with Zn. The results revealed that the broilers receiving a probiotic mixture alone or in combination with Zn (30 and 60 mg) increased (P < 0.05) final body weight, feed conversion ratio (FCR), and total goblet cell count in duodenum compared with the control group...
April 22, 2018: Probiotics and Antimicrobial Proteins
Bahareh Pakbaten, Reza Majidzadeh Heravi, Hassan Kermanshahi, Mohammad-Hadi Sekhavati, Ali Javadmanesh, Masoud Mohammadi Ziarat
Probiotics are beneficial microorganisms and have long been used in food production as well as health promotion products. Bioengineered probiotics are used to express and transfer native or recombinant molecules to the mucosal surface of the digestive tract to improve feed efficiency and promote health. Lactococcus lactis is a potential probiotic candidate to produce useful biological proteins. The aim of this investigation was to develop a recombinant Lactococcus lactis with the potential of producing phytase...
April 21, 2018: Probiotics and Antimicrobial Proteins
Sudthidol Piyadeatsoontorn, Rutjawate Taharnklaew, Tewa Upathanpreecha, Pairat Sornplang
Important aspects of the selection of probiotics to be used for mixing in animal feed include host species specificity and probiotic cell survival during production and storage of their products. The research was to screen and investigate some probiotic properties of lactic acid bacteria (LAB) isolated from pig fecal samples. One hundred and thirty-eight representative LAB isolates, which were isolated from 51 pig fecal samples, were tested for acid and bile tolerance, antimicrobial susceptibility, antibacterial activity, potential adhesion to the cell surface, and survival rates when stored in varied microencapsulation forms: freeze-dried, spray-dried, and micro-beads...
April 17, 2018: Probiotics and Antimicrobial Proteins
Aswathy Jayakumar, Arathy Krishna, Mahesh Mohan, Indu C Nair, E K Radhakrishnan
Endophytic bacteria have already been studied for their beneficial support to plants to manage both biotic and abiotic stress through an array of well-established mechanisms. They have either direct or indirect impact on mobilizing diverse nutrients and elements from soil to plants. However, detailed insight into the fine-tuning of plant elemental composition by associated microorganism is very limited. In this study, endophytic Bacillus Fcl1 characterized from the rhizome of Curcuma longa was found to have broad range of plant growth-promoting and biocontrol mechanisms...
April 13, 2018: Probiotics and Antimicrobial Proteins
Lvchen Xiong, Xueqin Ni, Lili Niu, Yi Zhou, Qiang Wang, Abdul Khalique, Qian Liu, Yan Zeng, Gang Shu, Kangcheng Pan, Bo Jing, Dong Zeng
Weissella confusa has recently received attention for its probiotic potential. Some W. confusa and Weissella cibaria strains isolated from fermented foods show favorable probiotic effects. However, the probiotic properties of W. confusa isolated from giant panda remain unreported to date. Thus, this study isolated a W. confusa strain from giant panda feces and then investigated its characteristics and probiotic properties. A lactic acid bacteria strain was isolated from giant panda fecal samples. The isolated strain was screened by in vitro probiotic property tests, including in vitro antimicrobial test, antioxidant test, surface hydrophobicity, and stress resistance...
April 13, 2018: Probiotics and Antimicrobial Proteins
Ying Tang, Lei Han, Xiaoxuan Chen, Mengqi Xie, Weiguang Kong, Zhixin Wu
This study investigated whether Bacillus subtilis can provide protection for grass carp against oxidative stress damage induced by Aeromonas hydrophila. A total of 240 healthy grass carp (Ctenopharyngodon idellus) (average weight of 71.42 ± 4.36g) were randomly divided into four groups with three replicates: control group, A. hydrophila group, B. subtilis + A. hydrophila group, and A. hydrophila + B. subtilis group. After challenge with A. hydrophila, the lipid oxidative damage, antioxidant defenses, and the gene expression of inflammatory cytokines of the grass carp were investigated...
April 13, 2018: Probiotics and Antimicrobial Proteins
Rohit Panwar, Narendra Kumar, Vipul Kashyap, Chand Ram, Rajeev Kapila
Aflatoxin M1 (AFM1 ) is known to be a potent carcinogen and continues to pose a public health concern through the consumption of contaminated dairy foods. It is anticipated that consumption of lactic acid bacteria capable of binding aflatoxins can reduce the risk of AFM1 on human health to a certain extent. Seldom reports have hinted the possibility of using lactic acid bacteria for the biological detoxification of AFM1 . Hence, the present study was conducted to assess the ability of selected probiotic Lactobacillus strains for their AFM1 binding ability in PBS and to reduce its bioaccessibility in artificially contaminated skim milk using an in vitro digestion model...
April 12, 2018: Probiotics and Antimicrobial Proteins
Natália A Borges, P Stenvinkel, P Bergman, A R Qureshi, B Lindholm, C Moraes, M B Stockler-Pinto, D Mafra
Components present in the diet, L-carnitine, choline, and betaine are metabolized by gut microbiota to produce metabolites such as trimethylamine-N-oxide (TMAO) that appear to promote cardiovascular disease in chronic kidney disease (CKD) patients. The objective of this pilot study was to evaluate the effects of probiotic supplementation for 3 months on plasma TMAO levels in CKD patients on hemodialysis (HD). A randomized, double-blind trial was performed in 21 patients [54.8 ± 10.4 years, nine men, BMI 26...
April 12, 2018: Probiotics and Antimicrobial Proteins
Soňa Gancarčíková, Radomíra Nemcová, Miroslav Popper, Gabriela Hrčková, Ľuboslava Sciranková, Marián Maďar, Dagmar Mudroňová, Štefan Vilček, Rudolf Žitňan
Alginite is a non-ore raw material arising by fossilization of accumulated organic (algae) and inorganic material, particularly clay, carbonates, quartz, and amorphous modification of silicic acid in the aqueous environment. Humic acids as a component of organic portion of alginite are known for very good buffering ability which allows them to stabilise pH throughout the digestion system of animals, stimulate receptors of the immune system in intestinal villi against pathogenic bacteria, and support proliferation and activity of beneficial bacteria (lactobacilli, bifidobacteria, and similar)...
April 7, 2018: Probiotics and Antimicrobial Proteins
Abbas Tanhaeian, Farajollah Shahriari Ahmadi, Mohammad Hadi Sekhavati, Mojtaba Mamarabadi
Lactoferrin is the most dominant protein in milk after casein. This protein plays a crucial role in many biological processes including the regulation of iron metabolism, induction and modulation of the immune system, the primary defense against microorganisms, inhibiting lipid peroxidation and presenting antimicrobial activity against various pathogens such as parasites, fungi, bacteria, and viruses. The major antimicrobial effect of lactoferrin is related to its N-terminal tail where different peptides for instance lactoferricin and lactoferrampin which are important for their antimicrobial abilities are present...
April 4, 2018: Probiotics and Antimicrobial Proteins
Konstantinos Leventogiannis, Paraskevas Gkolfakis, Georgios Spithakis, Aikaterini Tsatali, Aikaterini Pistiki, Athanasios Sioulas, Evangelos J Giamarellos-Bourboulis, Konstantinos Triantafyllou
The original version of this article contained mistakes, and the authors would like to correct them. The correct details are given below.
March 28, 2018: Probiotics and Antimicrobial Proteins
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