Mediterranean semi-arid plant Astragalus armatus as a source of bioactive galactomannan

Boual, Zakaria; Pierre, Guillaume; Delattre, Cédric; Benaoun, Fatima; Petit, Elsa; Gardarin, Christine; Michaud, Philippe; Hadj, Mohamed Didi Ould El

doi:10.1016/j.bcdf.2014.11.002

Cited by 27 publications

(16 citation statements)

References 38 publications

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“…The spectra of galactomannan showed characteristic peaks which were similar to previous reports [6,18]. The stretching vibration peak at 3310 cm −1 is related to OH groups from polysaccharide, while the peak at 2919 cm −1 belongs to the characteristic absorption of stretching -C-H from -CH 2 .…”

Section: Resultssupporting

confidence: 86%

The Physiochemical and Antibacterial Properties of Galactomannan Edible Film of Arenga Pinnata Incorporated With Zingiber Officinale Essential Oil

Tarigan

Nainggolan

Kaban

2018

Asian J Pharm Clin Res

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Objective: This study aimed to demonstrate the incorporation of Zingiber officinale essential (ZOE) oil onto galactomannan from Arenga pinnata (GAP) matrix and determined the antibacterial activity of the edible films (EF).Methods: EF was obtained from the incorporation of GAP (0.5, 0.9, or 1.3 g) with ZOE (0.5 or 1 g) using glycerol (0.6 g) and monoglycerol oleic (0.2 g) as a plasticizer.Results: The thickness of the films increased with the increase of GAP and ZOE oil. However, the tensile strength and water permeability decreased in the fourth EF when the ZOE oil was increased. The maximum value of tensile strength and modulus elongation was obtained with the ratio of GAP to ZOE oil at 0.9, 0.5, 4.502 MPa, and 0.0633 MPa, respectively. The Fourier transform infrared spectrum showed that the interaction occurred between GAP and ZOE oil. The EFs showed antibacterial activity against Escherichia coli, Staphylococcus aureus, Shigella dysenteriae, Salmonella typhi, Pseudomonas aeruginosa, Candida albicans, and Saccharomyces cerevisiae with the highest activity in the third EF. The total bacteria amount in a colony decreased until the 5th day compared with the control. Furthermore, the third EF could inhibit oxygen migration with a respiratory quotient of 7.71.Conclusions: This study revealed that EFs from GAP and ZOE could be prepared and have antibacterial activity against several pathogenic bacteria.

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Section: Resultssupporting

confidence: 86%

The Physiochemical and Antibacterial Properties of Galactomannan Edible Film of Arenga Pinnata Incorporated With Zingiber Officinale Essential Oil

Tarigan

Nainggolan

Kaban

2018

Asian J Pharm Clin Res

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“…The first one scavenged the hydroxyl radical generated whereas the second suppressed the hydroxyl radical generation. DPPH is a stable free radical widely used to evaluate the free radical scavenging activity of compounds [48]. DPPH radical scavenging by polysaccharidic antioxidants was related to their hydrogen-donating capacity [49].…”

Section: Antioxidant Activitymentioning

confidence: 99%

Structural Characterization and Biological Activities of Polysaccharides from Olive Mill Wastewater

Nadour

Laroche

Pierre

et al. 2015

Appl Biochem Biotechnol

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Olive mill wastewater (OMWW), the main waste product of olive oil extraction process, was investigated as a source of polysaccharides. The yield of alcohol insoluble residue (AIR) was 20.5 % based on the dry matter of OMWW. Extraction with water gave water soluble (WSF) and insoluble (WIF) fractions from AIR with yields of 13.3 % (w/w) and 3.7 % (w/w) based on the dry matter, respectively. Chemical composition and monosaccharide analysis indicated that glucose was the main monosaccharide of these extracts in addition to galactose, arabinose, rhamnose, and galacturonic acid. Prebiotic and antioxidant activities of polysaccharidic fractions from OMWW were evaluated. Results gave evidence for their scavenging capacity toward the 2,2'-diphenyl-1-picrylhydrazyle (DPPH) (IC50 value of 89.43 μg/mL) and hydroxyl radicals (IC50 value of 158.70 μg/mL), resistance toward artificial human gastric juice, and ability to be fermented by Lactobacilli strains.

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“…For a better comparison, figure 6 shows the FT-IR spectra of the prepared galactomannan/Zn(OH) 2 -ZnO composite and the extracted and purified galactomannan as a reference (the same that was used for preparing the composite material, and whose main characteristics were reported previously [26]). For the reference case, it is observed that the FT-IR spectrum shows the characteristic bands usually reported in the literature for galactomannan polysaccharides [35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52]. In this way, the broad band at around 3360 cm −1 observed in the reference spectrum corresponds to the O-H stretching vibrations of the hydroxymethyl (-CH 2 OH) The FT-IR spectrum of the galactomannan reference also presents two bands at 1739 and 1645 cm −1 .…”

Section: 1c Ft-ir Spectroscopy Characterizationmentioning

confidence: 94%

Characterization of the antibacterial galactomannan/ $$\hbox {Zn(OH)}_{2}$$ Zn(OH) 2 –ZnO composite material prepared in situ from a green process using mesquite seeds as a biopolymer source

et al. 2019

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In this work, the preparation of an antibacterial galactomannan/Zn(OH) 2-ZnO composite material by a green process is proposed and demonstrated. The galactomannan polysaccharide was extracted from the arid-native mesquite (Prosopis spp.) seeds through a hydrothermal technique, and it was used as an organic polymeric matrix for the in situ chemical precipitation of the Zn(OH) 2-ZnO inorganic particles from simple reactions between Zn 2+ and NaOH. The preparation was performed under standard conditions in aqueous solutions. The composite material, which was obtained by centrifugation of the previous preparation, was characterized by X-ray diffraction, transmission and scanning electron microscopy, infrared spectroscopy and thermal analysis. By means of these techniques, it was deduced that the composite material is highly crystalline (about 94%), composed of about 92% inorganic and 8% organic portion, and has a predominant size of 760 nm and a mean size of 800 nm. The antibacterial activity of the composite material was also studied, which resulted better against Escherichia coli (Gram-negative bacterium) than against Staphylococcus aureus (Gram-positive bacterium), which was calculated in a difference of about 30%. This work presents the high potential of galactomannans to form functional composite materials with inorganic particles.

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Mediterranean semi-arid plant Astragalus armatus as a source of bioactive galactomannan

Cited by 27 publications

References 38 publications

The Physiochemical and Antibacterial Properties of Galactomannan Edible Film of Arenga Pinnata Incorporated With Zingiber Officinale Essential Oil

The Physiochemical and Antibacterial Properties of Galactomannan Edible Film of Arenga Pinnata Incorporated With Zingiber Officinale Essential Oil

Structural Characterization and Biological Activities of Polysaccharides from Olive Mill Wastewater

Characterization of the antibacterial galactomannan/ $$\hbox {Zn(OH)}_{2}$$ Zn(OH) 2 –ZnO composite material prepared in situ from a green process using mesquite seeds as a biopolymer source

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