scholarly journals Antidiabetic, Antioxidants and Antibacterial Activities of Lactic Acid Bacteria (LAB) from Masin (Fermented Sauce from Sumbawa, West Nusa Tenggara, Indonesia)

2020 ◽  
Vol 24 (1) ◽  
pp. 27
Author(s):  
Baso Manguntungi ◽  
Dinar Suksmayu Saputri ◽  
Apon Zaenal Mustopa ◽  
Nurlaili Ekawati ◽  
Maritsa Nurfatwa ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Antidiabetic Activity ◽  
Strain Atcc ◽  
Antibacterial Compounds ◽  
Effective Antioxidant

The study aimed to determine the effectiveness of metabolites from Lactic Acid Bacteria (LAB) derived Masin (fermented sauce from Sumbawa) as antioxidant, antidiabetic, and antibacterial compounds. The LAB isolates were isolated from various strains of Staphylococcus piscifermentan which consisted of Staphylococcus piscifermentans strain CIP103958 (code: 2), strain BULST54 (code: 17), strain SK03 (code: 11), strain ATCC 51136 (code: 34), strain PCM 2409 (code: 28) and strain PU-87 (code: 5). The Metabolites of LAB were analyzed by the bioprospecting test to indicate antidiabetic, antioxidant and antibacterial activities. The isolate (Code: 5) at 500 ug/ml showed the most effective antioxidant activity up to 71%. The isolate (code: 28), at  300 ug/ml revealed to have the most antidiabetic activity up to  43 %. The isolate (code: 2) showed moderate antibacterial activity with  the inhibition zone of 5.59 mm. The results of the antidiabetic, antioxidant and antibacterial activity showed that the  secondary metabolites produced by LAB from the Masin have broad activities as an  antidiabetic, antioxidant and antibacterial.

scholarly journals Total Lactic Acid Bacteria and Antibacterial Activity in Yoghurt with Addition of Ananas comosus Merr. and Cinnamomum burmannii

2020 ◽  
Vol 4 (4) ◽  
pp. 257
Author(s):  
Lusia Yotista Enggal Parasthi ◽  
Diana Nur Afifah ◽  
Choirun Nissa ◽  
Binar Panunggal
Keyword(s):  
Antibacterial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Inhibition Zone ◽  
Ananas Comosus ◽  
Plate Count ◽  
E Coli ◽  
Cinnamon Extract ◽  
Significant Difference ◽  
Cinnamomum Burmannii

Background: Diarrhea disease is one of gastrointestinal disorders which is the second leading cause of death in children under five years. Food and beverage contamination is the biggest cause of diarrhea in developing countries. Nanas madu (Ananas comosus Merr.) and cinnamon (Cinnamomum burmannii) have antibacterial properties that can inhibit the growth of Escherichia coli and Salmonella typhi causing diarrhea.Objective: This study aimed to analyze the total differences of Lactic Acid Bacteria (LAB) and antibacterial activity in yoghurt with the addition of nanas madu and cinnamon extract.Methods: This was an experimental study with various treatment in adding honey cream pineapple (0%, 20%, 40%, and 60%) and cinnamon extract (4% and 6%). Total LAB was calculated using the Total Plate Count (TPC) method and antibacterial activity was tested using Kirby Bauer method.Results: There was no significant difference in yoghurt with the addition of honey cream pineapple and cinnamon extract. Yoghurt with the highest LAB was yoghurt with addition 40% of honey cream pineapple and 6% of cinnamon extract (N40M2) with total LAB 1,43 x 1019 CFU/ml. The results of the antibacterial activity showed no significant difference of inhibition zone against S. typhi¸ while there was significant difference of inhibition zone against E. coli. The highest activity against S. typhi was yoghurt with addition 60% of honey cream pineapple and 4% of cinnamon extract (N60M1) resulting 6,81 mm inhibition zone and the highest activity against E. coli was N40M1 resulting 6,77 mm of inhibition zone. Conclusion: Total LAB yoghurt with the addition of nanas madu and cinnamon extract have met FAO and SNI standards with LAB minimum 107 CFU/ml. Antibacterial activity of all yoghurt treatment categorized as medium inhibition (5-10 mm). 

scholarly journals Effect of Storage Duration on Physicochemical and Antibacterial Activities of Sweet Corn-based Synbiotic Yogurt with Honey

2020 ◽  
Vol 3 (2) ◽  
pp. 174
Author(s):  
Musyirna Rahmah Nasution ◽  
Winda Sri Wahyuni
Keyword(s):  
Antibacterial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Sweet Corn ◽  
Ph Value ◽  
Fermented Milk ◽  
Antibacterial Activities ◽  
Quality Standard ◽  
Total Coliform ◽  
Storage Duration

Synbiotic yogurt is fermented milk containing probiotics and prebiotics. The quality of symbiotic yogurt products during cold storage must meet the SNI quality requirements (2981-2009). This study aimed to find the effect of yogurt storage duration on physicochemical properties and antibacterial activity for the best yogurt storage time. In this study, synbiotic yogurt was made from sweet corn, honey, and full cream milk as prebiotics and Lactobacillus acidophilus and Bifidobacterium bifidum as probiotics. The tests carried out include testing total coliform, total lactic acid bacteria, degree of acidity (pH), total titrated acid, organoleptic quality, and antibacterial activity. The tests were carried out on days 0, 5, 10, 15, and 20. The results showed that storage duration affected product quality and antibacterial activity. The best storage duration for yogurt was found to be ten days, where the yogurt stored for ten days found to have a total coliform of 0 APM/g, total lactic acid bacteria of 2.81 x 1012, total lactic acid of 1.684%, pH value of 3.5 and was still preferred and could be accepted by the panelists, based on the organoleptic assessments. The yogurt stored for ten days also gave the largest average inhibition diameter of 21.78 mm with the category 'very strong' against Escherichia coli and 22.13 mm with the classification 'very strong' against Salmonella typhi. The yogurt stored for up to 10 days still met the SNI yogurt quality standard requirements (2981: 2009).

scholarly journals Characteristics of Goat Milk Kefir with Addition of Red Yeast Rice Extract During Storage

2021 ◽  
Vol 45 (1) ◽  
pp. 47
Author(s):  
Dilla Melani ◽  
Nurliyani Nurliyani ◽  
Indratiningsih Indratiningsih
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Ph Value ◽  
Goat Milk ◽  
Total Count ◽  
Red Yeast Rice ◽  
Alcohol Content ◽  
E Coli

Kefir is one of milk products, produced by the addition of bacteria and yeast-containing kefir starter. This study aimed to evaluate the microbial characteristic, antibacterial activity, chemical and physical characteristics, antioxidant activity, and organoleptic characteristic of goat milk kefir which treated with angkak (red yeast rice) extract supplementation during storage. The study was initiated with milling to produce angkak flour, which then was diluted on sterilized distilled water on 1:2 ratio. Kefir were obtained by fermenting goat milk using 3% kefir grain for 18 hours at room temperature. Different treatments on the study were angkak extract supplementations on level of 0; 2; 4; and 6% for three different storage periods, i.e., 0, 7, and 14 days. The parameter of microbial characteristics observed on this study were total of lactic acid bacteria, TPC, total yeast, and antibacterial activity. Chemical tests performed on this study included the value of acidity, pH value, alcohol content, and water content. Meanwhile, the physical evaluations included viscosity, color test (brightness value, red value, and yellow value), and followed with antioxidant activity test on DPPH method and organoleptic test. Data from chemical, microbial, and physical evaluation were analyzed on one way ANOVA for these following parameters: total count of lactic acid bacteria, TPC, antibacterial activity, value of acidity, pH value, alcohol content, water content, viscosity, brightness value, red value, yellow value, antioxidant activity, and sensory values (alcoholic taste and acceptability). The analysis were further continued on two way ANOVA for total count of lactic acid bacteria, TPC, antibacterial activity on E. coli and S. aureus, alcohol content, viscosity, brightness value, red value, yellow value, and antioxidant activity. Meanwhile, the organoleptic characteristics were analyzed on non-parametric Kruskal Wallis, followed by Duncan’s multiple range test (DMRT).  Data were analyzed on computer program of Software Statistical Product and Service Solution (SPSS) version 18 for windows. The study revealed that angkak extract supplementation on goat milk kefir during 0, 7, and 14 days of storage had significant effects (P<0.05) on total count of lactic acid bacteria, TPC count, antibacterial activity, value of acidity, pH value, alcohol content, and sensory qualities (alcoholic taste and acceptability). There was an interaction between angkak extract supplementation and storage period on total count of lactic acid bacteria, TPC, antibacterial activity on E. coli and S. aureus, alcohol content, viscosity, brightness value, red value, yellow value, and antioxidant activity. As summary, supplementation of angkak extract at 6% level and 14 days storage periods increase the microbiological quality, viscosity, alcohol content, antioxidant activity, as well as its alcoholic taste-associated acceptability, and inhibit the growth of pathogens (E. coli and S. aureus).

scholarly journals Phenolic Content and Antioxidant, Antibacterial Activities of Ethanolic Extract From Lemon Balm and Oregano Plants

2014 ◽  
Vol 11 (1) ◽  
pp. 103-110
Author(s):  
Baghdad Science Journal
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Phenolic Compounds ◽  
Phenolic Content ◽  
Ethanolic Extract ◽  
Strong Relationship ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Resistant Isolate ◽  
Lemon Balm

The antioxidant and antibacterial activities of ethanolic extract and phenolic compounds extract of Lemon balm (Melissa officinalis) and Oregano (Oreganum vulgare) plants were studied; the phenolic content and the relationship between these compounds and the above activities were also investigated. The results showed that the Lemon balm had the highest phenolic content (56.5% mg g) and the phenolic content of Oregano was twice lower than Lemon balm. Lemon balm has the highest antioxidant activity which causes lipid peroxidation inhibition activity of linoleic acid (90.5%), this activity was more than ?-tocopherole antioxidant activity (79.3 %). It was found that the main source of antioxidant activity of these plants was belonging to phenolic compounds and the results proved the strong relationship between antioxidant activity and phenolic content. The ethanolic extract of Lemon balm was exhibited strong antibacterial activity ,the inhibition included all bacterial isolates , with highest inhibition zone against Bacillus cereus ( 26 mm), while Oregano did not exhibit clear antibacterial activity, Aeromonas hydrophila was the most resistant isolate . It was obvious from the results of effect of phenolic compounds on bacteria that no relationship between antibacterial activity and phenolic content and the inhibition may be due to other compounds.

Synthesis, antioxidant and antibacterial activity of azo dye-stilbene hybrid compounds

2019 ◽  
Vol 48 (1) ◽  
pp. 84-88 ◽  
Author(s):  
Esmail Rezaei-Seresht ◽  
Aboulfazl Salimi ◽  
Behnam Mahdavi
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Azo Dyes ◽  
Radical Scavenging ◽  
Coupling Reaction ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Butylated Hydroxytoluene ◽  
Azo Compounds ◽  
Content Type

Purpose The purpose of this paper is synthesis and evaluation of antioxidant and antibacterial activities of a series of new azo dyes derived from 4-aminostilbene. Design/methodology/approach First, the starting material 4-aminostilbene was prepared via two successive Wittig and reduction reactions from 4-nitrobenzyl bromide. The obtained 4-aminostilbene was then reacted with some phenols under the normal azo coupling reaction conditions to give five new azo products. Antioxidant activity of the azo compounds was determined by radical scavenging assay using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. Also, the antimicrobial activity of the compounds against one gram-positive and eight gram-negative strains was evaluated based on the inhibition zone using disc diffusion assay. Findings The structures of the azo dyes were identified and characterized by fourier-transform Infrared, 1H nuclear magnetic resonance (NMR) and ultraviolet-visible (UV-V) is spectroscopic methods. All the compounds showed higher antioxidant activity than ascorbic acid (Asc) and butylated hydroxytoluene (BHT) as positive controls. Moreover, the compounds showed lower antibacterial activity than the standard antibiotic vancomycin. Research limitations/implications Excellent antioxidant activity, along with antibacterial activity against Streptococcus pneumoniae and Pseudomonas aeruginosa, was observed for the two synthesized azo dyes. Originality/value Five novel azo dyes based on 4-aminostilbene were synthesized. The dyes have a highly p-extended conjugated structure comprising the phenolic and stilbenic segments, and they indicated good antioxidant activity, so that the two dyes (2c and 2d) even showed much more scavenging activity compared to BHT which is used as an antioxidant agent in food industries. These compounds with highest antioxidant activity also inhibited the growth of S. pneumoniae and P. aeruginosa.

scholarly journals Enumeration, identification and safety proprieties of lactic acid bacteria isolated from pork sausage

2015 ◽  
Vol 67 (3) ◽  
pp. 918-926 ◽  
Author(s):  
F.S. Dias ◽  
M.R.R.M. Santos ◽  
R.F. Schwan
Keyword(s):  
Antibacterial Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Selection Criteria ◽  
Meat Products ◽  
Antibacterial Activities ◽  
Safety Properties ◽  
Pork Sausage ◽  
Pork Sausages ◽  
Microbiological Analyses

Lactic Acid Bacteria (LAB) are indigenous microorganisms occurring in pork sausages. The utilization of selected autochthonous LAB may improve the safety of meat products. This study aims to enumerate and identify LAB in pork sausage and to characterize their safety properties, such as antimicrobial susceptibility and antibacterial activity. A total of 189 sealed packages of pork sausages were collected in seven municipalities (27 samples in each city) of Minas Gerais, Brazil. Microbiological analyses were performed to enumerate LAB. Two pre-selection criteria were applied to 567 isolates of LAB: catalase activity and tolerance to pH 2. A total of 32 strains of UFLA SAU were selected, characterized phenotypically and identified through 16S rDNA region sequencing. The susceptibility to antimicrobial and antibacterial activities of isolates was evaluated. The LAB count ranged from 3.079 to 8.987 log10 CFU/g. Lactobacillus plantarum and Lactobacillus paracasei were identified in the samples. UFLA SAU 11, 20, 34, 86, 131 and 258 showed a profile of susceptibility to four antimicrobials: erythromycin, ampicillin, chloramphenicol and gentamycin. In the antibacterial activity test, with exception of UFLA SAU 1, all other strains showed efficiency in inhibiting Escherichia coli, Salmonella Typhiand Listeria monocytogenes. In the statistical analysis there was interaction among strains of Lactobacillus against the pathogens tested. L. monocytogenes (P=0.05) was more sensitive to Lactobacillus strains and the highest inhibitory activity against this pathogen was achieved by strains UFLA SAU 135, 226, 238 and 258. Thus, UFLA SAU 11, 20, 34, 86, 131, 135, 226, 238 and 258 possess safety characteristics for application in meat products.

scholarly journals Phytochemical Composition, Antioxidant and Antibacterial Activities of Extracts from Different Parts of Brocchia cinerea (Vis.)

2021 ◽  
Vol 12 (4) ◽  
pp. 4432-4447
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Pathogenic Bacteria ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Pharmaceutical Products ◽  
Aqueous Extracts ◽  
Phytochemical Screening ◽  
Antioxidant Power ◽  
Different Parts

Brocchia cinerea (Vis.) is an Asteraceae-family plant widely used in traditional medicine in Southeastern Morocco to treat several ailments. The aqueous extracts of flowers, leaves, stems and aerial parts of B. cinerea were subjected to a preliminary phytochemical screening test for various constituents. The polyphenols, flavonoids, and tannins contents were determined. Moreover, the antioxidant activity was evaluated by DPPH scavenging assay and ferric reduction antioxidant power. However, the antibacterial activity was evaluated against six pathogenic bacteria. Phytochemical screening of different parts of B. cinerea revealed alkaloids, flavonoids, saponins, tannins, and terpenoids. The leaves extract showed the highest polyphenols concentration (27.15±0.92 mg GAE/g of Ext) and flavonoids (17.46±0.66 mg QE/g of Ext), while flowers extract was highest in tannin (9.57±1.24 mg TAE/g of Extract). All extracts of B. cinerea showed moderate to high antioxidant power, among which the leaves extract demonstrated the strongest antioxidant activity, with an IC50 value of 0.99 mg/mL and an optical density of 1.15. In the case of antibacterial activity screening, leaves extract showed the highest inhibition zone diameters ranging from 9 to 27 mm against the tested bacteria. The results demonstrate that the aqueous extracts of different parts of B. cinerea, especially the leaves, could be developed as pharmaceutical products.

scholarly journals Selection of lactic acid bacteria producing bacteriocin

2017 ◽  
Vol 8 (5) ◽  
pp. 271-276
Author(s):  
Thi Quyen Ha ◽  
Thi Minh Tu Hoa
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
16S Rrna ◽  
Lactobacillus Acidophilus ◽  
Enterococcus Faecium ◽  
Antibacterial Compounds ◽  
Bacillus Subtilis Atcc

Lactic acid bacteria were isolated from 10 samples of the traditionally fermented foods (5 samples of Vietnamese fermented pork roll and 5 samples of the salted field cabbage) and 5 samples of fresh cow milks collected from households in Vietnam. 22 strains of lactic acid bacteria were isolated for inhibition to Lactobacillus plantarum JCM 1149. Of these, only 2 strains including DC1.8 and NC1.2 have rod shape, the others have coccus shape. 7 strains showing higher antibacterial activity were selected for checking spectrum of antibacteria with indicator bacteria consistting of Bacillus subtilis ATCC 6633, Enterococcus faecium JCM 5804 and Staphylococcus aureus TLU. By which, 3 strains including NC3.5 (from Vietnamese fermented pork roll), DC1.8 (from salted field cabbage) and MC3.19 (from fresh cow milk) were selected because of their higher antibacterial ability. However, the antibacterial activity of the lactic acid bacteria can be based on their disposable compounds and some other antibacterial compounds produced during their growth (such as lactic acid, H2O2, bacteriocins, etc.). For seeking lactic acid bacteria with capability of producing bacteriocins, antibacterial compounds with protein nature, 3 above strains were checked sensitiveness to proteases (including protease K, papain, α – chymotrypsin and trypsin). Because bacteriocins are proteinaceous antibacterial compounds, so their antibacterial activity will be reduced if proteases are added. The result showed DC1.8 and MC3.19 were capable of producing bacteriocin during culture process. They were identified as Lactobacillus acidophilus and Lactococcus lactis and classified, respectively, based on analysis chemical characterisitcs by standard API 50 CHL kit and phylogeny relationship by 16s rRNA sequences. Các chủng vi khuẩn lactic được phân lập từ 10 mẫu thực phẩm lên men truyền thống (5 mẫu nem chua, 5 mẫu dưa cải bẹ muối) và 5 mẫu sữa bò tươi được thu thập từ các hộ gia đình ở Việt Nam. 22 chủng vi khuẩn lactic đã được phân lập với tiêu chí có khả năng kháng lại vi khuẩn kiểm định Lactobacillus plantarum JCM 1149. Trong số đó, 2 chủng DC1.8 và NC1.2 có tế bào hình que, các chủng còn lại có tế bào hình cầu. 7 chủng thể hiện hoạt tính kháng khuẩn cao được lựa chọn để xác định phổ kháng khuẩn rộng hơn với ba loài vi khuẩn kiểm định Bacillus subtilis ATCC 6633, Enterococcus faecium JCM 5804 và Staphylococcus aureus TLU. Từ đó lựa chọn được 3 chủng có hoạt tính kháng khuẩn cao hơn hẳn. Các chủng này gồm NC3.5 phân lập từ nem chua, DC1.8 phân lập từ dưa cải bẹ muối và MC3.19 phân lập từ sữa bò tươi. Tuy nhiên, hoạt tính kháng khuẩn của vi khuẩn lactic bao gồm những hợp chất nội tại có trong nó và cả những hợp chất được sinh ra trong quá trình phát triển của nó (như axit lactic, H2O2, bacteriocin, …). Với định hướng tìm chủng vi khuẩn lactic có khả năng sinh bacteriocin, chất kháng khuẩn có bản chất protein, 3 chủng trên được kiểm tra độ nhạy cảm với các protease (gồm protease K, papain, α – chymotrypsin và trypsin). Do bacteriocin là chất kháng khuẩn có bản chất protein nên hoạt tính kháng khuẩn của chúng sẽ bị giảm nếu protease được bổ xung vào. Kết quả lựa chọn được chủng DC1.8 và MC3.19 có khả năng sinh bacteriocin. Hai chủng này được phân loại đến loài nhờ vào phân tích đặc điểm sinh hóa bằng kit API 50 CHL và mối quan hệ di truyền thông qua trình tự gen 16s rRNA. Kết quả phân loại đã xác định chủng DC1.8 thuộc loài Lactobacillus acidophilus và chủng MC3.19 thuộc loài Lactococcus lactis.

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