Abstract
Abstract. Chen TV, Lam DNX, Thong CLT, Nguyen DD, Nhi NTT, Triet NT. 2022. Morphological characters, pharmacognostical parameters, and preliminary phytochemical screening of Curcuma sahuynhensis Škorni?k. & N.S.Lý in Quang Ngai Province, Vietnam. Biodiversitas 23: 3907-3920. Curcuma sahuynhensis (Vegetable Turmeric or Rau Nghe) has been used as a flavor and a spice in Vietnamese cuisines. Information on micromorphological characters, pharmacognostic parameters, and phytochemical screening of C. sahuynhensis has not been reported in the literature. Therefore, the accurate verification of plants requires further research to determine their quality and safety in order to make optimal use of them as raw materials for medicines and food. In this work, macro-and micromorphological features, pharmacognostic parameters, and phytochemical screening were performed according to the Vietnamese Pharmacopoeia V guidelines and other published data. Macromorphologically, it can grow up to 75 ± 5 cm tall and up to 10 per pseudostem. The inflorescence consists of 10–24 bracts. Rhizome branched, and remote tubers were present. The flower was yellow with a warm yellow midrib band, and an incision up to 0.6 cm long on the apex labellum. Anthers are L-shaped, stalked with no knobs below the thecae. Micromorphologically, there are anatomical similarities between the species in the genus Curcuma, particularly in terms of leaves, roots, and rhizomes. Under the lower epidermis of the leaf midrib are small vascular bundles (8–10 bundles). The stomatal index (SI) was 8.97 in abaxial and 1.06 in adaxial of the leaf. Prismatic calcium oxalate crystals were found in the leaf but they were absent in the root. Starch grains were also found in leaf powder (11–12.5 µm) and rhizome powder (15–20 µm). Additionally, the presence of oleoresin (in leaves and rhizomes) and the absence of crystals in the cortex region of the rhizome was found to be significant features in identifying C. sahuynhensis. Phytochemical screening found that its rhizome and inflorescence contain essential oil, amino acids, flavonoids, tannins, coumarins, triterpenoids, polyuronides, and reducing compounds. Pharmacognostically, rhizome powders' moisture content, total ash value, and acid-insoluble ash value were 11.79 ± 0.20%, 7.32 ± 0.60%, and 0.24 ± 0.08%, respectively.
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Claims 17
Claim · model-written summary
Plants reached 75 ± 5 cm in height.
Not reportedTaxon
Verbatim
e0“Macromorphologically, it can grow up to 75 ± 5 cm tall”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Inflorescences had 10–24 bracts.
Not reportedTaxon
Verbatim
e0“The inflorescence consists of 10–24 bracts”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Rhizomes were branched and remote tubers present.
- Outcome
- Rhizome branched, and remote tubers were presente0
Not reportedTaxon
Verbatim
e0“Rhizome branched, and remote tubers were present”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Flowers were yellow with a midrib band and an apical labellum incision up to 0.6 cm.
Not reportedTaxon
Verbatim
e0“The flower was yellow with a warm yellow midrib band, and an incision up to 0.6 cm long on the apex labellum”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Anthers were L-shaped, stalked and lacked knobs.
- Outcome
- Anthers are L-shaped, stalked with no knobs below the thecaee0
Not reportedTaxon
Verbatim
e0“Anthers are L-shaped, stalked with no knobs below the thecae”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Leaf, root and rhizome anatomy resembled other Curcuma species.
- Outcome
- anatomical similaritiese0
Not reportedTaxon
Verbatim
e0“there are anatomical similarities between the species in the genus Curcuma, particularly in terms of leaves, roots, and rhizomes”
t0“Curcuma sahuynhensis”
Claim · model-written summary
The lower leaf midrib epidermis had 8–10 small vascular bundles.
Not reportedTaxon
Verbatim
e0“Under the lower epidermis of the leaf midrib are small vascular bundles (8–10 bundles)”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Abaxial stomatal index was 8.97.
Not reportedTaxon
Verbatim
e0“The stomatal index (SI) was 8.97 in abaxial”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Adaxial stomatal index was 1.06.
Not reportedTaxon
Verbatim
e0“1.06 in adaxial of the leaf”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Prismatic calcium oxalate crystals occurred in leaves but not roots.
- Outcome
- Prismatic calcium oxalate crystals were found in the leaf but they were absent in the roote0
Not reportedTaxon
Verbatim
e0“Prismatic calcium oxalate crystals were found in the leaf but they were absent in the root”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Starch grains measured 11–12.5 µm in leaf powder.
Not reportedTaxon
Verbatim
e0“Starch grains were also found in leaf powder (11–12.5 µm)”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Starch grains measured 15–20 µm in rhizome powder.
Not reportedTaxon
Verbatim
e0“rhizome powder (15–20 µm)”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Oleoresin occurred in leaves and rhizomes; rhizome cortex lacked crystals.
- Outcome
- presence of oleoresin (in leaves and rhizomes) and the absence of crystals in the cortex region of the rhizomee0
Not reportedTaxon
Verbatim
e0“the presence of oleoresin (in leaves and rhizomes) and the absence of crystals in the cortex region of the rhizome”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Rhizomes and inflorescences contained the listed phytochemical groups.
- Outcome
- essential oil, amino acids, flavonoids, tannins, coumarins, triterpenoids, polyuronides, and reducing compoundse0
Not reportedTaxon
Verbatim
e0“its rhizome and inflorescence contain essential oil, amino acids, flavonoids, tannins, coumarins, triterpenoids, polyuronides, and reducing compounds”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Rhizome powder moisture content was 11.79 ± 0.20%.
Not reportedTaxon
Verbatim
e0“rhizome powders' moisture content, total ash value, and acid-insoluble ash value were 11.79 ± 0.20%, 7.32 ± 0.60%, and 0.24 ± 0.08%”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Rhizome powder total ash was 7.32 ± 0.60%.
Not reportedTaxon
Verbatim
e0“rhizome powders' moisture content, total ash value, and acid-insoluble ash value were 11.79 ± 0.20%, 7.32 ± 0.60%, and 0.24 ± 0.08%”
t0“Curcuma sahuynhensis”
Claim · model-written summary
Rhizome powder acid-insoluble ash was 0.24 ± 0.08%.
Not reportedTaxon
Verbatim
e0“rhizome powders' moisture content, total ash value, and acid-insoluble ash value were 11.79 ± 0.20%, 7.32 ± 0.60%, and 0.24 ± 0.08%”
t0“Curcuma sahuynhensis”