Studies on chemical composition, rheological and antioxidant properties of pectin isolated from Riang (Parkia timoriana (DC.) Merr.) pod

Buathongjan, Chonchanok; Israkarn, Kamolwan; Sangwan, Watchara; Gamonpilas, Chaiwut; Methacanon, Pawadee

doi:10.1016/j.ijbiomac.2020.09.079

Cited by 19 publications

(11 citation statements)

References 25 publications

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“…Total flavonoid was found to be the highest in the pod (58.38 ± 0.001 mg/g), while flower (28.95 ± 0.002 mg/g) contained the least amount. Previously, it was shown that the methanolic extracts of pods and seeds contained 5.28 mg QE/g and 20.3 mg QE/g respectively 28 and 15.47 mg CA/g in pods 29 . Tapan 30 has shown that the methanol extract of pods contained 4.05 mg/g total flavonoid.…”

Section: Resultsmentioning

confidence: 99%

GC–MS and molecular docking analyses of phytochemicals from the underutilized plant, Parkia timoriana revealed candidate anti-cancerous and anti-inflammatory agents

Ralte

Khiangte

Thangjam

et al. 2022

Sci Rep

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Plants are excellent sources of functionally bioactive compounds and essential nutrients. The phytochemical constituents have enormous potential in treating both plant and human diseases. Parkia timoriana (Yongchak/Zawngtah), one of the most important underutilized plants popularly consumed in Manipur and Mizoram states of Northeastern region of India, is known for its ethnobotanical and ethnomedicinal values. A significant DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)), and Phosphomolybdate scavenging activity corresponding to high antioxidant potentials was shown by the extracts from different edible parts of P. timoriana. P. timoriana extract showed significant antibacterial potential against Bacillus pumilus, Bacillus subtillis, Escherichia coli and Pseudomonas aeruginosa. Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry (GC–MS) analyses of the extracts revealed the functional groups and bioactive compounds present in different edible parts of the plant. Characteristic peaks of phenols, carboxylic acids, alkenes, glycogen, alkyl halides, halogen, aliphatic amines, primary and secondary amines, esters, ether, aromatics, lipids, triglycerides, nitro compounds that had antimicrobial, anti-cancer and anti-inflammatory properties etc. were observed. The GC–MS analysis also revealed the occurrence of 49 bioactive compounds that are known to possess a variety of pharmacological activities. Subsequently, in silico molecular docking studies of the identified bioactive compounds predicted potential anticancer and anti-inflammatory properties. To the best of our knowledge, this is the first-hand report on the bioactive compounds of edible parts of P. timoriana extracts showing antioxidant, antimicrobial and pharmacological significance. This study can lead to the production of new herbal medicines for various diseases employing P. timoriana and perhaps leading to the creation of new medications.

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Section: Resultsmentioning

confidence: 99%

GC–MS and molecular docking analyses of phytochemicals from the underutilized plant, Parkia timoriana revealed candidate anti-cancerous and anti-inflammatory agents

Ralte

Khiangte

Thangjam

et al. 2022

Sci Rep

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“…The presence of phenolics in the composition of fireweed polysaccharides was expected, since phenols are linked to polysaccharide chains in many pectins [ 20 ]. For instance, total phenolic content in pectins possessing antioxidant activity was determined to be as much as 1 [ 22 ], 8 [ 23 ], 9.5 [ 24 ], 40 [ 25 ], 26–78 [ 26 ], 49–74 [ 27 ], 91 [ 28 ] and 16–161 [ 29 ] mg GAE/g. The results of the content of phenols in pectins from fireweed (EA-4.0—40 mg GAE/g; EA-0.8—27 mg GAE/g) are consistent with previously obtained data and demonstrate the effect of extraction conditions.…”

Section: Resultsmentioning

confidence: 99%

“…These include pectins of sunflower head [ 30 ], stems of Equisetum sp. [ 12 ], grapefruits [ 31 ], cladodes of Opuntia ficus indica [ 32 ], riang pod [ 26 ] and Chinese quince fruits [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…However, the predominance of HG in fireweed pectin was not predictable. A large number of pectins with antioxidant activity contained less HG and more RG-I than EA: 70 and 23 [ 34 ], 60 and 20 [ 26 ], 57 and 9 [ 35 ], 55 and 42 [ 36 ], 20 and 76 [ 21 ], etc., compared to 86–89 (HG) and 8–10 (RG-I) in fireweed pectin. The Rha/GalA, (Gal + Ara)/Rha and GalA/NM ratios are used to estimate the contribution of RG-I to pectin structure, the branching degree of RG-I and the linearity of pectin, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Isolation, Chemical Characterization and Antioxidant Activity of Pectic Polysaccharides of Fireweed (Epilobium angustifolium L.)

Popov¹,

Смирнов²,

Kvashninova³

et al. 2021

Molecules

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The aim of this study was to isolate pectins with antioxidant activity from the leaves of Epilobium angustifolium L. Two pectins, EA-4.0 and EA-0.8, with galacturonic acid contents of 88 and 91% were isolated from the leaves of E. angustifolium L. by the treatment of plant raw materials with aqueous hydrochloric acid at pH 4.0 and 0.8, respectively. EA-4.0 and EA-0.8 were found to scavenge the DPPH radical in a concentration-dependent manner at 17–133 μg/mL, whereas commercial apple pectin scavenged at 0.5–2 mg/mL. The antioxidant activity of EA-4.0 was the highest and exceeded the activity of EA-0.8 and a commercial apple pectin by 2 and 39 times (IC50—0.050, 0.109 and 1.961 mg/mL), respectively. Pectins EA-4.0 and EA-0.8 were found to possess superoxide radical scavenging activity, with IC50s equal to 0.27 and 0.97 mg/mL, respectively. Correlation analysis of the composition and activity of 32 polysaccharide fractions obtained by enzyme hydrolysis and anionic exchange chromatography revealed that the antioxidant capacity of fireweed pectins is mainly due to phenolics and is partially associated with xylogalacturonan chains. The data obtained demonstrate that pectic polysaccharides appeared to be bioactive components of fireweed leaves with high antioxidant activity, which depend on pH at their extraction.

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“…A typical pectin production process involves hot acid extraction (pH ~2.0) from raw plant material (citrus peel, apple pomace, potato, sugar beets, cocoa husk etc.) [318,319]. Most pectins are extracted using sulfuric acid and hydrochloric acid while maintaining the pH in the range of 1.2 to 5.…”

Section: Aerogels From Pectinmentioning

confidence: 99%

Biorefinery Approach for Aerogels

et al. 2020

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According to the International Energy Agency, biorefinery is “the sustainable processing of biomass into a spectrum of marketable bio-based products (chemicals, materials) and bioenergy (fuels, power, heat)”. In this review, we survey how the biorefinery approach can be applied to highly porous and nanostructured materials, namely aerogels. Historically, aerogels were first developed using inorganic matter. Subsequently, synthetic polymers were also employed. At the beginning of the 21st century, new aerogels were created based on biomass. Which sources of biomass can be used to make aerogels and how? This review answers these questions, paying special attention to bio-aerogels’ environmental and biomedical applications. The article is a result of fruitful exchanges in the frame of the European project COST Action “CA 18125 AERoGELS: Advanced Engineering and Research of aeroGels for Environment and Life Sciences”.

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Studies on chemical composition, rheological and antioxidant properties of pectin isolated from Riang (Parkia timoriana (DC.) Merr.) pod

Cited by 19 publications

References 25 publications

GC–MS and molecular docking analyses of phytochemicals from the underutilized plant, Parkia timoriana revealed candidate anti-cancerous and anti-inflammatory agents

GC–MS and molecular docking analyses of phytochemicals from the underutilized plant, Parkia timoriana revealed candidate anti-cancerous and anti-inflammatory agents

Isolation, Chemical Characterization and Antioxidant Activity of Pectic Polysaccharides of Fireweed (Epilobium angustifolium L.)

Biorefinery Approach for Aerogels

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