Bioaccessibility, antioxidant activity and modulation effect on gut microbiota of bioactive compounds from Moringa oleifera Lam. leaves during digestion and fermentation in vitro

2019 ◽  
Vol 10 (8) ◽  
pp. 5070-5079 ◽  
Author(s):  
Zuman Dou ◽  
Chun Chen ◽  
Xiong Fu
Keyword(s):  
Antioxidant Activity ◽  
Gut Microbiota ◽  
Bioactive Compounds ◽  
Moringa Oleifera ◽  
Modulation Effect ◽  
Gastrointestinal Digestion ◽  
Colonic Fermentation ◽  
Moringa Oleifera Lam

This study aims to investigate the bioaccessibility, bioactivity and gut microbiota modulation effect of Moringa oleifera Lam. leaves after in vitro gastrointestinal digestion and colonic fermentation.

scholarly journals Antioxidant Activity and Bio-Accessibility of Polyphenols in Black Carrot (Daucus carota L. ssp. sativus var. atrorubens Alef.) and Two Derived Products during Simulated Gastrointestinal Digestion and Colonic Fermentation

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 457 ◽  
Author(s):  
Gema Pereira-Caro ◽  
José Luis Ordóñez-Díaz ◽  
Elsy de Santiago ◽  
Alicia Moreno-Ortega ◽  
Salud Cáceres-Jiménez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Resolution Mass Spectrometry ◽  
Bioactive Compound ◽  
Hydroxycinnamic Acids ◽  
Gastrointestinal Digestion ◽  
Colonic Fermentation ◽  
Potential Health ◽  
Black Carrot ◽  
Daucus Carota L

Black carrot has been attracting increasing thanks to its high bioactive compound content. This study presents the polyphenol bio-accessibility of black carrot and two derived products (black carrot snack (BC snack) and black carrot seasoning (BC seasoning)) after in vitro gastrointestinal digestion and colonic fermentation. Additionally, antioxidant activity was measured by 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS), 1,1-diphenyl-2-picryl-hydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays. Nine flavonoids and eight anthocyanins were determined by ultra high-performance liquid chromatography high resolution mass spectrometry (UHPLC-HRMS) analysis, the predominant compounds being the hydroxycinnamic acids 3-O-feruloylquinic acid, 4-O-feruloylquinic acid and chlorogenic acid. The BC snack (108 µmol/g DW) presented the highest total polyphenol content, followed by BC seasoning (53 µmol/g DW) and black carrot (11.4 µmol/g DW). The main polyphenols still bio-accessible after in vitro digestion were the hydroxycinnamic acids, with mean recovery rates of 113 % for black carrot, 69% for BC snack and 81% for BC seasoning. The incubation of black carrot and its derived products with human faecal bacterial resulted in the complete degradation of anthocyanins and in the formation of mainly 3-(4′-hydroxyphenyl)propanoic acid as the major catabolic event. In conclusion, our results suggest that the black carrot matrix impacts significantly affects the bio-accessibility of polyphenols and, therefore, their potential health benefits.

scholarly journals Assessment of Bioactive Compounds under Simulated Gastrointestinal Digestion of Bee Pollen and Bee Bread: Bioaccessibility and Antioxidant Activity

Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 651
Author(s):  
Volkan Aylanc ◽  
Andreia Tomás ◽  
Paulo Russo-Almeida ◽  
Soraia I. Falcão ◽  
Miguel Vilas-Boas
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Reducing Power ◽  
Nutrient Content ◽  
Total Phenolic ◽  
Gastrointestinal Digestion ◽  
Bee Pollen ◽  
Bee Bread ◽  
Bioactive Content

Bee pollen and bee bread have always been regarded as excellent natural resources for application in food and pharmaceutical fields due to their rich nutrient content and diversity of bioactive compounds with health-improving properties. Extensive studies on both bee products as ingredients for a healthy diet were reported, although the data concerning their metabolization on the gastrointestinal tract is quite limited. Here, we report, at each digestive stage, the bioactive profile for both bee products, their bioaccessibility levels and the antioxidant activity evaluation. The findings indicated that the average bioaccessibility level of total phenolic and total flavonoid content for bee pollen was 31% and 25%, respectively, while it was 38% and 35% for bee bread. This was reflected in a decrease of their antioxidant capacity at the end of in vitro gastrointestinal digestion, both in free radicals scavenging capacity and in reducing power. Moreover, within the 35 phytochemicals identified, the most affected by gastrointestinal digestion were phenylamides, with a complete digestibility at the end of the intestinal phase. Overall, our results highlight that bioactive compounds in both raw products do not reflect the real amount absorbed in the intestine, being bee bread more accessible in bioactive content than bee pollen.

scholarly journals Antioxidant and antiproliferative properties of Moringa oleifera Lam. leaf aqueous extract

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
D Athira Nair ◽  
T J James ◽  
S L Sreelatha ◽  
Bibu John Kariyil
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Moringa Oleifera ◽  
Dependent Manner ◽  
Standard Drug ◽  
In Vivo Analysis ◽  
Moringa Oleifera Lam

Moringa oleifera Lam. is a highly valued medicinal plant in India, especially Kerala. In the present study, antioxidant activity of aqueous extract of leaves of M. oleifera was determined both in-vitro and in-vivo. Male Wistar rats of 3 age groups- 6, 12, and 18 months old were used for in-vivo analysis. In vitro anti-proliferative effect of the extract was carried out in Dalton’s Lymphoma Ascites (DLA) Cells. LCMS-QTOF analysis of the extract was also done to determine the bioactive components present in the extract. Antioxidant activity of M. oleifera leaf showed an IC 50 value of 10.47 ?g/ml and whereas for standard drug, ascorbic acid, it was 19.52 ?g/ml. In-vivo analysis of lipid peroxidation showed a significant reduction of lipid peroxidation in the brains of 12 and 18-months old treated groups. Up to 75% mortality of DLA cancerous cells was observed in-vitro in different concentrations of M. oleifera leaf water extract in a dose-dependent manner, demonstrating its anti-proliferative property. LCMS-QTOF analysis revealed the presence of emodin-8-glucoside in the extract. Molecular docking analysis (Auto Dock Vina) of emodin-8-glucoside with six cancer related proteins showed highest binding affinity with AKT-1 with a binding score of -10.4 kcal/mol, also showed good affinity with NF-kB (p65), Stat-3, Bcl-2, Bcl-xl and c-FLIP. This study helps to choose healthy diet practices to overcome free radical onslaught and cancerous cell proliferation especially in the later stages of life. This can also pave way for the emergence of diet based therapeutic cure for cancer.

scholarly journals Bioaminergic Responses in an In Vitro System Studying Human Gut Microbiota–Kiwifruit Interactions

2020 ◽  
Vol 8 (10) ◽  
pp. 1582
Author(s):  
Shanthi Parkar ◽  
Carel Jobsis ◽  
Tania Trower ◽  
Janine Cooney ◽  
Duncan Hedderley ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Gene Expression Analysis ◽  
Serotonin Synthesis ◽  
Gastrointestinal Digestion ◽  
Human Gut ◽  
Colonic Fermentation ◽  
In Vitro System ◽  
Physiological Relevance ◽  
Intestinal Functions

Whole kiwifruit (‘Hayward’ and ‘Zesy002’) were examined for their bioaminergic potential after being subjected to in vitro gastrointestinal digestion and colonic fermentation. Controls included the prebiotic inulin and water, a carbohydrate-free vehicle. The dopamine precursor l-dihydroxyphenylalanine (L-DOPA) and the serotonin precursor 5-hydroxytryptophan were increased in the kiwifruit gastrointestinal digesta (‘Hayward’ > ‘Zesy002’) in comparison to the water digesta. Fermentation of the digesta with human fecal bacteria for 18 h modulated the concentrations of bioamine metabolites. The most notable were the significant increases in L-DOPA (‘Zesy002’ > ‘Hayward’) and γ-aminobutyric acid (GABA) (‘Hayward’ > ‘Zesy002’). Kiwifruit increased Bifidobacterium spp. and Veillonellaceae (correlating with L-DOPA increase), and Lachnospira spp. (correlating with GABA). The digesta and fermenta were incubated with Caco-2 cells for 3 h followed by gene expression analysis. Effects were seen on genes related to serotonin synthesis/re-uptake/conversion to melatonin, gut tight junction, inflammation and circadian rhythm with different digesta and fermenta from the four treatments. These indicate potential effects of the substrates and the microbially generated organic acid and bioamine metabolites on intestinal functions that have physiological relevance. Further studies are required to confirm the potential bioaminergic effects of gut microbiota–kiwifruit interactions.

scholarly journals In Vitro Bioassay-Guided Identification of Anticancer Properties from Moringa oleifera Lam. Leaf against the MDA-MB-231 Cell Line

2020 ◽  
Vol 13 (12) ◽  
pp. 464
Author(s):  
Prapakorn Wisitpongpun ◽  
Nungruthai Suphrom ◽  
Pachuen Potup ◽  
Nitra Nuengchamnong ◽  
Philip C. Calder ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Moringa Oleifera ◽  
Anticancer Activities ◽  
Etoac Extract ◽  
Apoptosis Pathway ◽  
Anticancer Properties ◽  
Cycle Arrest ◽  
Bioassay Guided Fractionation ◽  
Moringa Oleifera Lam

Moringa oleifera Lam. (MO) is a medicinal plant distributed across the Middle East, Asia, and Africa. MO has been used in the traditional treatment of various diseases including cancer. This study aimed to perform bioassay-guided fractionation and identification of bioactive compounds from MO leaf against MDA-MB-231 breast cancer cells. MO leaf was sequentially extracted with hexane, ethyl acetate (EtOAc), and ethanol. The most effective extract was subjected to fractionation. MO extract and its derived fractions were continuously screened for anti-cancer activities. The strongest fraction was selected for re-fractionation and identification of bioactive compounds using LC-ESI-QTOF-MS/MS analysis. The best anticancer activities were related to the fraction no. 7-derived crude EtOAc extract. This fraction significantly reduced cell viability and clonogenic growth and increased cells apoptosis. Moreover, sub-fraction no. 7.7-derived fraction no. 7 was selected for the identification of bioactive compounds. There were 10 candidate compounds tentatively identified by LC-ESI-QTOF-MS. Three of identified compounds (7-octenoic acid, oleamide, and 1-phenyl-2-pentanol) showed anticancer activities by inducing cell cycle arrest and triggering apoptosis through suppressed Bcl-2 expression which subsequently promotes activation of caspase 3, indicators for the apoptosis pathway. This study identified 10 candidate compounds that may have potential in the field of anticancer substances.

Temulawak (Curcuma  xanthorrhizaRoxb.) belongs to the family Zingiberaceae, has been empirically used as herbal medicines. The research was aimed to evaluate three promising lines of Temulawak based on their high bioactive contents (xanthorrhizol and curcuminoid) and its in vitro bioactivity (antioxidant and toxicity), and to obtain information on agrobiophysic environmental condition which produced high bioactive compounds. The xanthorrhizol and curcuminoid contents were measured by HPLC. In vitro antioxidant and toxicity were determined by DPPH (1,1-diphenyl-2-picryl-hydrazyl) method and BSLT (Brine Shrimp Lethality Test). The result showed that promising line A produced the highest yield of bioactive and bioactivity, i.e. 0.157 and 0.056 g plant-1of xanthorrizol and curcuminoid respectively. The IC50 of antioxidant activity was 65.09 mg L-1and LC50of toxicity was 69.05 mg L-1. In this study, Cipenjo had the best temulawak performance than two other locations. According to the agrobiophysic parameters, Cipenjo environmental condition was suitable for temulawak cultivation with temperature 28-34 ºC, rainfall ± 223.97 mm year-1 and sandy clay soil. Keywords: antioxidant, curcuminoid, promising lines, temulawak, xanthorrhizol

1970 ◽  
Vol 40 (2) ◽  
Author(s):  
Waras Nurcholis ◽  
Edy Djauhari Purwakusumah ◽  
Mono Rahardjo ◽  
Latifah K. Darusman
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Brine Shrimp ◽  
Clay Soil ◽  
Herbal Medicines ◽  
Environmental Condition ◽  
In Vitro Bioactivity ◽  
The Family ◽  
Promising Line

Temulawak (Curcuma  xanthorrhizaRoxb.) belongs to the family Zingiberaceae, has been empirically used as herbal medicines. The research was aimed to evaluate three promising lines of Temulawak based on their high bioactive contents (xanthorrhizol and curcuminoid) and its in vitro bioactivity (antioxidant and toxicity), and to obtain information on agrobiophysic environmental condition which produced high bioactive compounds. The xanthorrhizol and curcuminoid contents were measured by HPLC. In vitro antioxidant and toxicity were determined by DPPH (1,1-diphenyl-2-picryl-hydrazyl) method and BSLT (Brine Shrimp Lethality Test). The result showed that promising line A produced the highest yield of bioactive and bioactivity, i.e. 0.157 and 0.056 g plant-1of xanthorrizol and curcuminoid respectively. The IC50 of antioxidant activity was 65.09 mg L-1and LC50of toxicity was 69.05 mg L-1. In this study, Cipenjo had the best temulawak performance than two other locations. According to the agrobiophysic parameters, Cipenjo environmental condition was suitable for temulawak cultivation with temperature 28-34 ºC, rainfall ± 223.97 mm year-1 and sandy clay soil. Keywords: antioxidant, curcuminoid, promising lines, temulawak, xanthorrhizol

scholarly journals Preservation of Human Gut Microbiota Inoculums for In Vitro Fermentations Studies

Fermentation ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 14
Author(s):  
Nelson Mota de Carvalho ◽  
Diana Luazi Oliveira ◽  
Mayra Anton Dib Saleh ◽  
Manuela Pintado ◽  
Ana Raquel Madureira
Keyword(s):  
Gut Microbiota ◽  
Metabolic Profile ◽  
Bacterial Count ◽  
Glycerol Solution ◽  
Metabolic Profiles ◽  
Human Gut ◽  
Colonic Fermentation ◽  
In Vitro Fermentation ◽  
Fecal Samples

The use of fecal inoculums for in vitro fermentation models requires a viable gut microbiota, capable of fermenting the unabsorbed nutrients. Fresh samples from human donors are used; however, the availability of fresh fecal inoculum and its inherent variability is often a problem. This study aimed to optimize a method of preserving pooled human fecal samples for in vitro fermentation studies. Different conditions and times of storage at −20 °C were tested. In vitro fermentation experiments were carried out for both fresh and frozen inoculums, and the metabolic profile compared. In comparison with the fresh, the inoculum frozen in a PBS and 30% glycerol solution, had a significantly lower (p < 0.05) bacterial count (<1 log CFU/mL). However, no significant differences (p < 0.05) were found between the metabolic profiles after 48 h. Hence, a PBS and 30% glycerol solution can be used to maintain the gut microbiota viability during storage at −20 °C for at least 3 months, without interfering with the normal course of colonic fermentation.

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