View in EDS

Seasonal variations influence the phytochemistry and pesticidal potential of Alpinia malaccensis essential oils.

Saved in:
Bibliographic Details
Title: Seasonal variations influence the phytochemistry and pesticidal potential of Alpinia malaccensis essential oils.
Authors: Mahawer, Sonu Kumar1,2 (AUTHOR) sonummahawer@gmail.com, Kumar, Ravendra1 (AUTHOR) ravichemistry.kumar@gmail.com, Kumar, Satya1 (AUTHOR) skumar8326@rediffmail.com, Rawat, Dharmendra Singh1 (AUTHOR) eflorapantnagar@gmail.com, Garzoli, Stefania1,3 (AUTHOR) stefania.garzoli@uniroma1.it
Source: Industrial Crops & Products. May2026, Vol. 245, pN.PAG-N.PAG. 1p.
Subjects: Essential oils, Alpinia, Seasonal temperature variations, Pest control, Nematodes, Botanical chemistry, Phytotoxicity, Monoterpenes
Abstract: Alpinia malaccensis (Burm.f.) Roscoe is an aromatic perennial of the Zingiberaceae family with considerable potential for large-scale cultivation as a sustainable industrial crop due to its essential oil yield and pesticidal bioactivity. The present study examined how seasonal variation affects the phytochemistry and pesticidal properties of A. malaccensis leaf and rhizome essential oils (EOs). Fresh plant material was collected in the last month of each season following IMD classification-September 2021 (monsoon), December 2021 (post-monsoon), early April 2022 (winter), and June 2022 (summer). There was a significant influence of season on the EOs yields. The highest rhizome (0.13%) and leaf (0.15%) EOs yields were recorded in the winter and summer seasons, respectively. Similarly, EO constituents are also significantly influenced by seasons. The main chemical class in leaf EOs was monoterpene hydrocarbons, whereas in rhizome EOs, monoterpene hydrocarbons as well as oxygenated monoterpenes were dominant classes. Further, the EOs were evaluated for their nematicidal (against root knot nematode, Meloidogyne incognita) as well as phytotoxicity against seeds of radish (Raphanus raphanistrum subsp. sativus) and chicory (Cichorium intybus). Leaf and rhizome EOs in the winter season showed the highest nematicidal activity with the lowest LC 50 (0.211 µL/mL) and IC 50 (0.012 µL/mL) values in nematode mortality bioassay and nematode egg hatchability bioassay, respectively. Similarly, rhizome EOs in summer and leaf EOs in monsoon were found most effective against radish and chicory seeds, with a Seedling Vigor Index of 69.6 and 0.68, respectively. To explore the mechanism underlying nematicidal activity, in-silico molecular docking was conducted using selected ligands and nematode proteins, and overall, the findings highlight the critical role of seasonal variation in modulating the bio-efficacy and chemical profile of A. malaccensis essential oils. [Display omitted] • Seasonal shifts strongly altered Alpinia malaccensis essential oil (EO) yield and chemical composition. • Winter leaf and summer rhizome samples showed the highest EO yields. • Dominant EO classes varied, with monoterpenes most abundant overall. • Winter EOs exhibited the strongest nematicidal effects with the lowest LC 50 /IC 50. • Seasonal EOs differed in phytotoxicity, affecting seed vigor variably. [ABSTRACT FROM AUTHOR]
Copyright of Industrial Crops & Products is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 193497041
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Seasonal variations influence the phytochemistry and pesticidal potential of Alpinia malaccensis essential oils.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Mahawer%2C+Sonu+Kumar%22">Mahawer, Sonu Kumar</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sonummahawer@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kumar%2C+Ravendra%22">Kumar, Ravendra</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ravichemistry.kumar@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kumar%2C+Satya%22">Kumar, Satya</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> skumar8326@rediffmail.com</i><br /><searchLink fieldCode="AR" term="%22Rawat%2C+Dharmendra+Singh%22">Rawat, Dharmendra Singh</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> eflorapantnagar@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Garzoli%2C+Stefania%22">Garzoli, Stefania</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> stefania.garzoli@uniroma1.it</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Industrial+Crops+%26+Products%22">Industrial Crops & Products</searchLink>. May2026, Vol. 245, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Essential+oils%22">Essential oils</searchLink><br /><searchLink fieldCode="DE" term="%22Alpinia%22">Alpinia</searchLink><br /><searchLink fieldCode="DE" term="%22Seasonal+temperature+variations%22">Seasonal temperature variations</searchLink><br /><searchLink fieldCode="DE" term="%22Pest+control%22">Pest control</searchLink><br /><searchLink fieldCode="DE" term="%22Nematodes%22">Nematodes</searchLink><br /><searchLink fieldCode="DE" term="%22Botanical+chemistry%22">Botanical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Phytotoxicity%22">Phytotoxicity</searchLink><br /><searchLink fieldCode="DE" term="%22Monoterpenes%22">Monoterpenes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Alpinia malaccensis (Burm.f.) Roscoe is an aromatic perennial of the Zingiberaceae family with considerable potential for large-scale cultivation as a sustainable industrial crop due to its essential oil yield and pesticidal bioactivity. The present study examined how seasonal variation affects the phytochemistry and pesticidal properties of A. malaccensis leaf and rhizome essential oils (EOs). Fresh plant material was collected in the last month of each season following IMD classification-September 2021 (monsoon), December 2021 (post-monsoon), early April 2022 (winter), and June 2022 (summer). There was a significant influence of season on the EOs yields. The highest rhizome (0.13%) and leaf (0.15%) EOs yields were recorded in the winter and summer seasons, respectively. Similarly, EO constituents are also significantly influenced by seasons. The main chemical class in leaf EOs was monoterpene hydrocarbons, whereas in rhizome EOs, monoterpene hydrocarbons as well as oxygenated monoterpenes were dominant classes. Further, the EOs were evaluated for their nematicidal (against root knot nematode, Meloidogyne incognita) as well as phytotoxicity against seeds of radish (Raphanus raphanistrum subsp. sativus) and chicory (Cichorium intybus). Leaf and rhizome EOs in the winter season showed the highest nematicidal activity with the lowest LC 50 (0.211 µL/mL) and IC 50 (0.012 µL/mL) values in nematode mortality bioassay and nematode egg hatchability bioassay, respectively. Similarly, rhizome EOs in summer and leaf EOs in monsoon were found most effective against radish and chicory seeds, with a Seedling Vigor Index of 69.6 and 0.68, respectively. To explore the mechanism underlying nematicidal activity, in-silico molecular docking was conducted using selected ligands and nematode proteins, and overall, the findings highlight the critical role of seasonal variation in modulating the bio-efficacy and chemical profile of A. malaccensis essential oils. [Display omitted] • Seasonal shifts strongly altered Alpinia malaccensis essential oil (EO) yield and chemical composition. • Winter leaf and summer rhizome samples showed the highest EO yields. • Dominant EO classes varied, with monoterpenes most abundant overall. • Winter EOs exhibited the strongest nematicidal effects with the lowest LC 50 /IC 50. • Seasonal EOs differed in phytotoxicity, affecting seed vigor variably. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Industrial Crops & Products is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193497041
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.indcrop.2026.123256
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Essential oils
        Type: general
      – SubjectFull: Alpinia
        Type: general
      – SubjectFull: Seasonal temperature variations
        Type: general
      – SubjectFull: Pest control
        Type: general
      – SubjectFull: Nematodes
        Type: general
      – SubjectFull: Botanical chemistry
        Type: general
      – SubjectFull: Phytotoxicity
        Type: general
      – SubjectFull: Monoterpenes
        Type: general
    Titles:
      – TitleFull: Seasonal variations influence the phytochemistry and pesticidal potential of Alpinia malaccensis essential oils.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Mahawer, Sonu Kumar
      – PersonEntity:
          Name:
            NameFull: Kumar, Ravendra
      – PersonEntity:
          Name:
            NameFull: Kumar, Satya
      – PersonEntity:
          Name:
            NameFull: Rawat, Dharmendra Singh
      – PersonEntity:
          Name:
            NameFull: Garzoli, Stefania
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 09266690
          Numbering:
            – Type: volume
              Value: 245
          Titles:
            – TitleFull: Industrial Crops & Products
              Type: main
ResultId 1