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  1. Artikel ; Online: Characterization of rice straw lignin phenolics and evaluation of their role in pollen tube growth in

    Mankoo, Ramandeep Kaur / Kaur, Jasleen / Chahal, Gagandeep Kaur

    Natural product research

    2023  Band 38, Heft 11, Seite(n) 1844–1849

    Abstract: Rice straw lignin was ... ...

    Abstract Rice straw lignin was extracted
    Mesh-Begriff(e) Lignin/chemistry ; Cucurbita/chemistry ; Coumaric Acids/chemistry ; Oryza/chemistry ; Oryza/growth & development ; Pollen Tube/drug effects ; Pollen Tube/growth & development ; Phenols/chemistry ; Phenols/analysis ; Hydroxybenzoates/chemistry ; Caffeic Acids/chemistry ; Germination/drug effects ; Spectroscopy, Fourier Transform Infrared ; Magnetic Resonance Spectroscopy
    Chemische Substanzen Lignin (9005-53-2) ; Coumaric Acids ; ferulic acid (AVM951ZWST) ; Phenols ; p-coumaric acid (IBS9D1EU3J) ; Hydroxybenzoates ; Caffeic Acids ; phenolic acid (I3P9R8317T)
    Sprache Englisch
    Erscheinungsdatum 2023-06-16
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2023.2225126
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Synthesis of xylan and lignin based hydrogels and their use as growth media for rice (

    Kaur, Japanpreet / Dudeja, Isha / Chahal, Gagandeep Kaur / Mankoo, Ramandeep Kaur / Kaur, Ramandeep

    Natural product research

    2024  , Seite(n) 1–10

    Abstract: Different hydrogels were synthesised using lignin and xylan (extracted from rice straw) as the raw material, PVA as matrix template, citric acid, and succinic acid as crosslinkers and were structurally characterised by FT-IR and SEM analysis. Citric acid ...

    Abstract Different hydrogels were synthesised using lignin and xylan (extracted from rice straw) as the raw material, PVA as matrix template, citric acid, and succinic acid as crosslinkers and were structurally characterised by FT-IR and SEM analysis. Citric acid cross-linked hydrogels caused loose bonding between polymers and resulted in formation of large pores whereas succinic acid cross-linked hydrogels were observed to have less porosity and tight bonding network. The swelling ratio and reswelling capacity of hydrogels revealed that lignin hydrogels outperformed all other hydrogels. All the synthesised hydrogels were tested for their use as soil culture media ingredient for the germination of rice seedlings. All the hydrogels performed well in stress conditions as compared to normal conditions. Xylan/lignin hydrogel and lignin hydrogels performed best under stress conditions. These hydrogels could be used effectively as an ingredient of soil culture media owing to their tendency to absorb and retain water properly.
    Sprache Englisch
    Erscheinungsdatum 2024-03-03
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2024.2324463
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Nanobiostimulant action of trigolic formulated zinc sulfide nanoparticles (ZnS-T NPs) on rice seeds by triggering antioxidant defense network and plant growth specific transcription factors.

    Khepar, Varinder / Sidhu, Anjali / Mankoo, Ramandeep Kaur / Manchanda, Pooja / Sharma, Anju Bala

    Plant physiology and biochemistry : PPB

    2024  Band 210, Seite(n) 108605

    Abstract: Under a changing climate, nanotechnological interventions for climate resilience in crops are critical to maintaining food security. Prior research has documented the affirmative response of nano zinc sulfide (nZnS) on physiological traits of fungal- ... ...

    Abstract Under a changing climate, nanotechnological interventions for climate resilience in crops are critical to maintaining food security. Prior research has documented the affirmative response of nano zinc sulfide (nZnS) on physiological traits of fungal-infested rice seeds. Here, we propose an application of trigolic formulated zinc sulfide nanoparticles (ZnS-T NPs) on rice seeds as nanobiostimulant to improve physiological parameters by triggering antioxidative defense system, whose mechanism was investigated at transcriptional level by differential expression of genes in germinated seedlings. Nanopriming of healthy rice seeds with ZnS-T NPs (50 μg/ml), considerably intensified the seed vitality factors, including germination percentage, seedling length, dry weight and overall vigor index. Differential activation of antioxidant enzymes, viz. SOD (35.47%), APX (33.80%) and CAT (45.94%), in ZnS-T NPs treated seedlings reduced the probability of redox imbalance and promoted the vitality of rice seedlings. In gene expression profiling by reverse transcription quantitative real time PCR (qRT-PCR), the notable up-regulation of target antioxidant genes (CuZn SOD, APX and CAT) and plant growth specific genes (CKX and GRF) in ZnS-T NPs treated rice seedlings substantiates their molecular role in stimulating both antioxidant defenses and plant growth mechanisms. The improved physiological quality parameters of ZnS-T NPs treated rice seeds under pot house conditions corresponded well with in vitro findings, which validated the beneficial boosted impact of ZnS-T NPs on rice seed development. Inclusively, the study on ZnS-T NPs offers fresh perspectives into biochemical and molecular reactions of rice, potentially positioning them as nanobiostimulant capable of eliciting broad-spectrum immune and growth-enhancing responses.
    Mesh-Begriff(e) Oryza/drug effects ; Oryza/growth & development ; Oryza/metabolism ; Oryza/genetics ; Antioxidants/metabolism ; Seeds/drug effects ; Seeds/growth & development ; Sulfides/pharmacology ; Zinc Compounds/pharmacology ; Nanoparticles/chemistry ; Transcription Factors/metabolism ; Transcription Factors/genetics ; Gene Expression Regulation, Plant/drug effects ; Plant Proteins/metabolism ; Plant Proteins/genetics ; Germination/drug effects ; Seedlings/drug effects ; Seedlings/growth & development ; Seedlings/metabolism ; Metal Nanoparticles/chemistry
    Chemische Substanzen zinc sulfide (KPS085631O) ; Antioxidants ; Sulfides ; Zinc Compounds ; Transcription Factors ; Plant Proteins
    Sprache Englisch
    Erscheinungsdatum 2024-04-04
    Erscheinungsland France
    Dokumenttyp Journal Article
    ZDB-ID 742978-2
    ISSN 1873-2690 ; 0981-9428
    ISSN (online) 1873-2690
    ISSN 0981-9428
    DOI 10.1016/j.plaphy.2024.108605
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Structural, antioxidant, antibacterial and biodegradation properties of rice straw xylan (native and modified) based biofilms

    Kapil, Sristhi / Mankoo, Ramandeep Kaur / Dudeja, Isha / Singh, Arashdeep / Kaur, Jupinder

    International Journal of Food Science & Technology. 2023 May, v. 58, no. 5 p.2772-2781

    2023  

    Abstract: The present study involved valorisation of rice straw by conversion of its constituent polymer xylan and chemically modified xylans into biofilms. Hemicellulosic xylan (19.94%) extracted with 10% NaOH (85 °C, 2.6 h) was chemically modified to acetylated ( ...

    Abstract The present study involved valorisation of rice straw by conversion of its constituent polymer xylan and chemically modified xylans into biofilms. Hemicellulosic xylan (19.94%) extracted with 10% NaOH (85 °C, 2.6 h) was chemically modified to acetylated (AX) and carboxymethylated xylan (CMX). Biofilms were prepared by reaction of xylan/modified xylan (1% and 2%) with polyvinyl alcohol using eco‐friendly and cheap cross‐linker citric acid and glycerol as plasticiser. 2% xylan biofilms showed maximum inhibition (94.25%) of DPPH at 4 mg mL⁻¹ which was due to large number of free ‐OH groups (highest intensity of ‐OH absorption bands in FT‐IR spectra). 2% CMX biofilms exhibited maximum antibacterial effectiveness with diameter of zone of inhibition 33.5 and 30.5 mm against Bacillus subtilis and Pseudomonas sp., respectively. This may be due to large number of undissociated COO⁻ ions (citric acid) in CMX biofilms which was evident from lesser cross‐linking observed in their SEM images. 2% CMX biofilms also showed the highest biodegradation (86.5%) which may be attributed to formation of ether bonds along with ester bonds leading to their fast degradation. Owing to good bioactive properties of prepared biofilms, it was concluded that these can be appropriate material for food packaging by replacing synthetic plastics.
    Schlagwörter Bacillus subtilis ; Pseudomonas ; absorption ; antioxidants ; biodegradation ; biofilm ; citric acid ; crosslinking ; food science ; glycerol ; plasticizers ; polyvinyl alcohol ; rice straw ; technology ; xylan
    Sprache Englisch
    Erscheinungsverlauf 2023-05
    Umfang p. 2772-2781.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel ; Online
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 883561-5
    ISSN 0950-5423
    ISSN 0950-5423
    DOI 10.1111/ijfs.16118
    Datenquelle NAL Katalog (AGRICOLA)

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  5. Artikel ; Online: Development, characterisation and biodegradability of rice straw lignin based sustainable biopolymeric films

    Dudeja, Isha / Mankoo, Ramandeep Kaur / Singh, Arashdeep / Kaur, Jupinder

    International Journal of Food Science & Technology. 2023 May, v. 58, no. 5 p.2754-2763

    2023  

    Abstract: The present study involved valorization of rice straw via production of biopolymeric films loaded with lignin and evaluation of their physical, mechanical, structural, antioxidant, antibacterial and biodegradable properties. Lignin (0.1%, 0.2% and 0.3%) ... ...

    Abstract The present study involved valorization of rice straw via production of biopolymeric films loaded with lignin and evaluation of their physical, mechanical, structural, antioxidant, antibacterial and biodegradable properties. Lignin (0.1%, 0.2% and 0.3%) loaded films were prepared by solvent casting method involving successful crosslinking between PVA, citric acid and lignin which was confirmed by ester bond formation at 1710 cm⁻¹ in Fourier transform infrared spectrum. Scanning electron micrographs showed smooth surface in control and wavy surface in lignin film with no cracks. Lignin films possessed thickness, tensile strength and elongation at break in the range 0.127–0.142 mm, 22–31.38 MPa and 11.83–17.63%, respectively. Lightness value of films decreased while yellowness index increased as the level of lignin increased in films. Lignin loaded films showed potential antioxidant activity (51.4–74.6%) and antibacterial efficacy against Pseudomonas (diameter of inhibition zone 4.1 cm), thus suggesting their role in prevention of bacterial food contamination and organoleptic changes in food. The biodegradability tests showed that weight loss experienced by films after burial in soil was above 78.7% which offers a great advantage of these biopolymeric films over non‐biodegradable synthetic plastics, hence, these may be explored further as bioplastics to replace plastic wraps in food packaging.
    Schlagwörter Fourier transform infrared spectroscopy ; Pseudomonas ; antibacterial properties ; antioxidant activity ; antioxidants ; biodegradability ; bioplastics ; citric acid ; crosslinking ; food contamination ; lignin ; rice straw ; soil ; solvents ; technology ; tensile strength ; weight loss
    Sprache Englisch
    Erscheinungsverlauf 2023-05
    Umfang p. 2754-2763.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel ; Online
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 883561-5
    ISSN 0950-5423
    ISSN 0950-5423
    DOI 10.1111/ijfs.16105
    Datenquelle NAL Katalog (AGRICOLA)

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  6. Artikel ; Online: Optimization of extraction of bioactive phenolics and their antioxidant potential from callus and leaf extracts of Citrus sinensis (L.) Osbeck, C. reticulata Blanco and C. maxima (Burm.) Merr

    Manchanda, Pooja / Kaur, Harleen / Mankoo, Ramandeep Kaur / Kaur, Arshdeep / Kaur, Jashandeep / Kaur, Simranjot / Sidhu, Gurupkar Singh

    Food Measure. 2023 Apr., v. 17, no. 2 p.1343-1353

    2023  

    Abstract: The present study was conducted with an objective of optimizing extraction conditions for achieving maximum recovery of total phenolic content (TPC), total flavonoid content (TFC) and antioxidant potential in terms of radical scavenging activity (RSA) ... ...

    Abstract The present study was conducted with an objective of optimizing extraction conditions for achieving maximum recovery of total phenolic content (TPC), total flavonoid content (TFC) and antioxidant potential in terms of radical scavenging activity (RSA) from ethanolic extracts of callus cultures and leaf tissues of three citrus species i.e. sweet orange (Citrus sinensis (L.) Osbeck), mandarin (Citrus reticulata Blanco) and pummelo (Citrus maxima (Burm.) Merr.). The callus was obtained from the seeds germinated under in vitro conditions. The extracts from callus cultures and leaf tissues were prepared in ethanol solutions (25%, 50% and 75%) by ultrasound-assisted extraction at different temperatures (30, 50 and 70 °C) and extraction times (10, 20 and 30 min). The results revealed that the extraction conditions of ethanol: water ratio of 50% at 50 °C for 30 min were the best in recovering maximum amounts of TPC, TFC and RSA. Analysis of variance was performed to identify various optimization conditions. A correlation analysis was performed to effect the interaction of phenols and flavonoids on antioxidant potential of callus cultures and leaf tissues in three citrus species. It was concluded that callus and leaves of the citrus species possess great potential for their use in production of bioactive compounds.
    Schlagwörter Citrus reticulata ; Citrus sinensis ; analysis of variance ; antioxidant activity ; callus ; ethanol ; flavonoids ; leaves ; oranges ; phenolic compounds ; pummelos ; ultrasonic treatment
    Sprache Englisch
    Erscheinungsverlauf 2023-04
    Umfang p. 1343-1353.
    Erscheinungsort Springer US
    Dokumenttyp Artikel ; Online
    ZDB-ID 2754612-3
    ISSN 2193-4134 ; 2193-4126
    ISSN (online) 2193-4134
    ISSN 2193-4126
    DOI 10.1007/s11694-022-01695-6
    Datenquelle NAL Katalog (AGRICOLA)

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