Characterization of a Novel Starch Isolated from the Rhizome of Colombian Turmeric (Curcuma longa L.) Cultivars

Shaydier Argel-Pérez (Author undergraduate student), Piedad Gañán-Rojo, Diego Cuartas-Marulanda, Catalina Gómez-Hoyos, Jorge Andres Velasquez Cock, Lina Vélez-Acosta, Robin Zuluaga, Angélica Serpa-Guerra

Research output: Contribution to journalArticle in an indexed scientific journalpeer-review

1 Scopus citations

Abstract

Turmeric (Curcuma longa L.) plants are native to Southeast Asia and are part of the Zingiberaceae family. Global consumption and production of this plant are expanding. In countries such as Colombia, turmeric is a promising cultivar. Curcuminoids derived from its rhizomes are used in food, pharmaceuticals, and natural cosmetics. Curcuminoids constitute approximately 3 wt% of the rhizome. Many residues rich in cellulose and starch can thus be recovered. This study characterizes a novel starch isolated from Colombian turmeric cultivars. The morphological parameters of the starch were determined using microscopic techniques such as scanning electron microscopy (SEM). Proximate analysis and infrared spectroscopy (ATR-FTIR) were used to analyze the chemical composition, while physical analyses included thermal characterization, swelling power testing, solubility, water retention capacity, and colorimetry evaluation. The new starch granules were ellipsoidal in shape and ranged in diameter from 19.91 to 38.09. A trace amount of remaining curcumin was identified through chemical and physical characterization. The swelling power was 3.52 ± 0.30, and its water retention capacity was 3.44 ± 0.30. Based on these findings, turmeric can be useful in both food and non-food applications. Because starch was extracted from other Zingiberaceae plants, this study also includes a brief review of the related literature.

Original languageEnglish
Article number7
JournalFoods
Volume13
Issue number1
DOIs
StatePublished - Jan 2024

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

  • Curcuma longaL
  • Zingiberaceae
  • characterization
  • isolation
  • rhizome
  • starch
  • turmeric

Types Minciencias

  • Artículos de investigación con calidad A1 / Q1

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