scholarly journals Pengujian secara In Vitro Oligosakarida dari Ekstrak Tepung Buah Rumbia (Metroxylon sago Rottb.) sebagai Sumber Prebiotik

2009 ◽  
Vol 9 (2) ◽  
pp. 35-41
Author(s):  
Muhammad Daud ◽  
Wiranda G Piliang ◽  
Komang G Wiryawan ◽  
Agus Setiyono

In vitro analysis of oligosaccharide from extract rumbia fruit (Metroxylon sago Rottb.) as prebioticABSTRACT. Despite a range of commercially available oligosaccharides there is plenty of room to develop new, functionally enhanced prebiotics. current generation of oligosaccharides was not rationally developed. better understanding of factors determining the prebiotic activity of a particular oligosaccharide. Despite the range of commercially available oligosaccharides mixtures (mainly fructo and galacto-oligosaccharides), very few studies are focused on the mechanisms behind the prebiotic activity of particular oligosaccharides. Probably this lack is due to the unavailability of well characterized oligosaccharide fractions for prebiotic function assessment. The objectives of this research were to asses the ability of lactic acid bacteria in fermentation of oligosaccharide and as prebiotic (in vitro). Material used was oligosaccharide of purified rumbia fruit extract. Analysis of oligosaccharide as prebiotic was conducted in vitro using lactic acid bacteria. The lactic acid bacteria consisted Bifidobacterium bifidum, Bifidobacterium animalis, Lactobacillus bulgaricus and Lactobacillus casei Rhamnosus. The growth media for bacteria was a liquid MRS basic medium where glucose was substituted by oligosaccharide of purified rumbia fruit extract. Incubation was in aerob for Lactobacillus and anaerob for Bifidobacterium in incubator 37oC. The lactic acid bacteria was calculated 24-48 hours during incubation periode. The variables observed were: oligosaccharide component, ability of lactic acid bacteria in fermentation of oligosaccharide, and growth of lactic acid bacteria (Lactobacillus and Bifidobacterium). The result showed that the oligosaccharide component from extract rumbia fruit consisted of: sucrose, stacchiose, and raffinose. The result showed that the oligosaccharide extract rumbia fruit was significantly (P0.05) the growth of lactic acid bacteria (Lactobacillus and Bifidobacterium) and fermentation of oligosaccharide. It is concluded that oligosaccharide of rumbia fruit extract could be used as prebiotic.

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Eun Yeong Jang ◽  
Yejin Ahn ◽  
Hyung Joo Suh ◽  
Ki-Bae Hong ◽  
Kyungae Jo

Constipation is a chronic disease caused by infrequent, inadequate, and difficult bowel movements. The present study aimed to evaluate the potential laxative effect of maltooligosaccharide (MOS) on loperamide-induced constipation in a rat model. In vitro experiments were conducted to evaluate the effect of MOS on the growth of lactic acid bacteria. Moreover, to examine the effect of MOS administration on Sprague-Dawley (SD) rats with loperamide-induced constipation, the drinking water for the rats was supplemented with 10% or 15% of MOS for 14 days, and, thereafter, the improvement in constipation was assessed. For this, the rats were divided into five groups: normal (Nor), loperamide-induced constipated (Con), positive control (15% of dual-oligosaccharide (DuO-15)), 10% MOS treated (MOS-10), and 15% MOS-treated (MOS-15). In an in vitro test, MOS treatment promoted the growth of lactic acid bacteria except Lactobacillus bulgaricus. Treatment with higher MOS dose relieved constipation in rats by improving the fecal pellet and water content. Furthermore, in the high MOS dose group, the cecal short-chain fatty acid levels significantly increased compared to those in the control group (P<0.001). MOS treatment also improved the mucosal thickness as well as mucin secretion and increased the area of intestinal Cajal cells compared to that in the control group (P<0.001). These findings suggest that MOS relieves constipation and has beneficial effect on the gastrointestinal tract, and, therefore, it can be used as an ingredient in functional foods for treating constipation or improving intestinal health.


2022 ◽  
Vol 3 (1) ◽  
pp. 14
Author(s):  
Anjar Briliannita ◽  
Zaenab Ismail

Background: Sago is local food, contains lactic acid bacteria that can ferment high carbohydrates and oligosaccharides purified from sago extract. It has the potential as a prebiotic because it can support the growth of lactic acid bacteria, reduce the growth of E.coli and Salmonella bacteria (in vitro).Objectives: To determine the effect of synbiotic drink added with sago starch extract (Metroxylon sago r) on organoleptic and nutritional tests and determine the degree of acidity of the drink.Methods: Experimental study with a completely randomized design (CRD). Organoleptic tests at the Nutrition Laboratory of the Nutrition Department of the Health Polytechnic of Sorong and chemical tests at the Chemix Pratama Laboratory in Yogyakarta in April-June 2020. Descriptive univariate analysis, including frequency and percentage distribution. Bivariate test with ANOVA test and Duncan's follow-up test.Results: The results showed that the synbiotic drink (yogurt) added with sago starch extract and using starter Streptococcus thermophilus, and Lactobacillus bulgaricus had a significant effect on the organoleptic test and the carbohydrate content of the product ( p < 0.05). The most preferred synbiotic drink (yogurt) from the three drink variations (Y011, Y021, and Y033) drinks Y021. The analysis of starch content in local varieties of West Papua sago flour was very high, namely 83.30%, and the chemical test results of acidity (pH) in the selected synbiotic drink (yogurt) Y021 was 4.36.Conclusion: The synbiotic drink added with sago starch extract had a significant effect on the organoleptic test compared with commercial yogurt drink and the carbohydrate content of the drink. Of the 3 variants of sago starch extract in synbiotic drinks, selected was Y021, and the best degree of acidity in synbiotic drinks (Y021), pH = 4.36 was sufficient to meet the standard of acidity of yogurt drinks in general.


2002 ◽  
Vol 80 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Woan-Sub Kim ◽  
Tetsuya Tanaka ◽  
Haruto Kumura ◽  
Kei-ichi Shimazaki

Lactoferrin is an iron-binding glycoprotein and its bacteriostatic and bactericidal effects on gram-positive and gram-negative bacteria are well known. On the other hand, it is known that certain kinds of lactic acid bacteria are resistant to its antibacterial effects. Moreover, it is reported that lactoferrin promotes the growth of bifidobacteria in in vitro and in vivo experiments. In our experiments, lactoferrin-binding protein was found both in the membrane and cytosolic fractions of Bifidobacterium bifidum Bb-11. The bifidobacteria were grown in anaerobic conditions with lactobacilli MRS broth containing cysteine, harvested by centrifugation, and processed by sonication. The lactoferrin-binding proteins on the PVDF-membrane transferred after SDS-PAGE were detected by far-Western (western-Western) method using biotinylated lactoferrin and streptavidin-labelled horse radish peroxidase. The molecular weights of the lactoferrin binding protein detected in the membrane fraction were estimated to be 69 kDa and those in cytosolic fractions were 20, 35, 50, and 66 kDa.Key words: lactoferrin, Bifidobacterium, lactic acid bacteria, binding protein.


Food Research ◽  
2021 ◽  
Vol 4 (S4) ◽  
pp. 81-86
Author(s):  
U. Chadseesuwan ◽  
S. Puthong ◽  
P. Deetae

The aim of this research was to evaluate the growth promotion of two freshwater macroalgae (Spirogyra sp., Cladophora sp.) and two saltwater macroalgae (Caulerpa lentillifera and Caulerpa corynephora) crude extracts to some lactic acid bacteria using in vitro fermentation. Total soluble carbohydrates of macroalgae were obtained after extraction with 75oC of water for 1 hr. The concentration of total sugar and reducing sugar were 0.764 and 0.197 mg/g in Spirogyra sp., 0.368 and 0.082 mg/g in Cladophora sp., 0.484 and 0.055 mg/g in C. lentillifera, and 0.253 and 0.037 mg/g in C. corynephora, respectively. Degree of polymerization (DP) that refers to the size of oligosaccharide, were 3.8, 4.5, 8.8 and 6.8, respectively. The prebiotic activity was assessed by the change of the bacterial population. Crude extracts from macroalgae were tested for growth stimulation effect on lactic acid bacteria, Lactobacillus plantarum TISTR862 and Escherichia coli TISTR073. Results demonstrated that the population of L. plantarum TISTR862 and E. coli TISTR073 were higher in crude extracts from freshwater than saltwater macroalgae. The prebiotic activity score was calculated based on the change of growth in probiotic and pathogen after 24 hrs of incubation time. The highest score was obtained from C. corynephora extracts (1.10) follow by C. lentillifera extracts (0.77), Cladophora sp. extracts (0.173) and Spirogyra sp. extracts (0.07). In comparison with commercial culture (Lactobacillus casei, Lactobacillus lactis, Streptococcus thermophilus and Bifidobacterium), the addition of 3.5% C. lentillifera extracts resulted as prebiotic activity score value as 3.5% FOS. Preliminary study demonstrated that crude extract of C. lentillifera could be a prebiotic substance


2005 ◽  
Vol 34 (1) ◽  
pp. 91-99 ◽  
Author(s):  
K. Szekér ◽  
J. Beczner ◽  
A. Halász ◽  
Á. Mayer ◽  
J.M. Rezessy-Szabó ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chatchai Kaewpila ◽  
Pongsatorn Gunun ◽  
Piyawit Kesorn ◽  
Sayan Subepang ◽  
Suwit Thip-uten ◽  
...  

AbstractImproving the nutrition of livestock is an important aspect of global food production sustainability. This study verified whether lactic acid bacteria (LAB) inoculant could promote ensiling characteristics, nutritive value, and in vitro enteric methane (CH4) mitigation of forage sorghum (FS) mixture silage in attacking malnutrition in Zebu beef cattle. The FS at the soft dough stage, Cavalcade hay (CH), and cassava chip (CC) were obtained. The treatments were designed as a 4 × 2 factorial arrangement in a completely randomized design. Factor A was FS prepared without or with CH, CC, and CH + CC. Factor B was untreated or treated with Lactobacillus casei TH14. The results showed that all FS mixture silages preserved well with lower pH values below 4.0 and higher lactic acid contents above 56.4 g/kg dry matter (DM). Adding LAB boosted the lactic acid content of silages. After 24 h and 48 h of in vitro rumen incubation, the CC-treated silage increased in vitro DM digestibility (IVDMD) with increased total gas production and CH4 production. The LAB-treated silage increased IVDMD but decreased CH4 production. Thus, the addition of L. casei TH14 inoculant could improve lactic acid fermentation, in vitro digestibility, and CH4 mitigation in the FS mixture silages.


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2579
Author(s):  
Carmen-Alina Bolea ◽  
Mihaela Cotârleț ◽  
Elena Enachi ◽  
Vasilica Barbu ◽  
Nicoleta Stănciuc

Two multi-functional powders, in terms of anthocyanins from black rice (Oryza sativa L.) and lactic acid bacteria (Lactobacillus paracasei, L. casei 431®) were obtained through co-microencapsulation into a biopolymer matrix composed of milk proteins and inulin. Two extracts were obtained using black rice flour as a raw material and hot water and ethanol as solvents. Both powders (called P1 for aqueous extract and P2 for ethanolic extract) proved to be rich sources of valuable bioactives, with microencapsulation efficiency up to 80%, both for anthocyanins and lactic acid bacteria. A higher content of anthocyanins was found in P1, of 102.91 ± 1.83 mg cyanindin-3-O-glucoside (C3G)/g dry weight (DW) when compared with only 27.60 ± 17.36 mg C3G/g DW in P2. The morphological analysis revealed the presence of large, thin, and fragile structures, with different sizes. A different pattern of gastric digestion was observed, with a highly protective effect of the matrix in P1 and a maximum decrease in anthocyanins of approximatively 44% in P2. In intestinal juice, the anthocyanins decreased significantly in P2, reaching a maximum of 97% at the end of digestion; whereas in P1, more than 45% from the initial anthocyanins content remained in the microparticles. Overall, the short-term storage stability test revealed a release of bioactive from P2 and a decrease in P1. The viable cells of lactic acid bacteria after 21 days of storage reached 7 log colony forming units (CFU)/g DW.


2021 ◽  
Vol 11 (13) ◽  
pp. 5765
Author(s):  
Joo-Yun Kim ◽  
Eun-Jung Choi ◽  
Jae-Ho Lee ◽  
Myeong-Seok Yoo ◽  
Keon Heo ◽  
...  

Vitamin B2, also known as riboflavin, is essential for maintaining human health. The purpose of this study was to isolate novel lactic acid bacteria that overproduce vitamin B2 and to validate their potential as probiotics. In this study, Lactobacillus plantarum HY7715 (HY7715) was selected among lactic acid bacteria isolated from Kimchi. HY7715 showed a very high riboflavin-producing ability compared to the control strain due to the high expression of ribA, ribB, ribC, ribH, and ribG genes. HY7715 produced 34.5 ± 2.41 mg/L of riboflavin for 24 h without consuming riboflavin in the medium under optimal growth conditions. It was able to produce riboflavin in an in vitro model of the intestinal environment. In addition, when riboflavin deficiency was induced in mice through nutritional restriction, higher levels of riboflavin were detected in plasma and urine in the HY7715 administration group than in the control group. HY7715 showed high survival rate in simulated gastrointestinal conditions and had antibiotic resistance below the cutoff MIC value suggested by the European Food Safety Authority; moreover, it did not cause hemolysis. In conclusion, HY7715 could be considered a beneficial probiotic strain for human and animal applications, suggesting that it could be a new alternative to address riboflavin deficiency.


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