Use of Various Sugarcane Byproducts to Produce Lipid Extracts with Bioactive Properties: Physicochemical and Biological Characterization

Biomolecules. 2024 Feb 17;14(2):233. doi: 10.3390/biom14020233.

Abstract

Sugarcane, a globally cultivated crop constituting nearly 80% of total sugar production, yields residues from harvesting and sugar production known for their renewable bioactive compounds with health-promoting properties. Despite previous studies, the intricate interplay of extracts from diverse sugarcane byproducts and their biological attributes remains underexplored. This study focused on extracting the lipid fraction from a blend of selected sugarcane byproducts (straw, bagasse, and filter cake) using ethanol. The resulting extract underwent comprehensive characterization, including physicochemical analysis (FT-IR, DSC, particle size distribution, and color) and chemical composition assessment (GC-MS). The biological properties were evaluated through antihypertensive (ACE), anticholesterolemic (HMG-CoA reductase), and antidiabetic (alpha-glucosidase and Dipeptidyl Peptidase-IV) assays, alongside in vitro biocompatibility assessments in Caco-2 and Hep G2 cells. The phytochemicals identified, such as β-sitosterol and 1-octacosanol, likely contribute to the extract's antidiabetic, anticholesterolemic, and antihypertensive potential, given their association with various beneficial bioactivities. The extract exhibited substantial antidiabetic effects, inhibiting α-glucosidase (5-60%) and DPP-IV activity (25-100%), anticholesterolemic potential with HMG-CoA reductase inhibition (11.4-63.2%), and antihypertensive properties through ACE inhibition (24.0-27.3%). These findings lay the groundwork for incorporating these ingredients into the development of food supplements or nutraceuticals, offering potential for preventing and managing metabolic syndrome-associated conditions.

Keywords: anticholesterolemic; antidiabetic; antihypertension; lipid extract; sugarcane.

MeSH terms

  • Antihypertensive Agents / pharmacology
  • Caco-2 Cells
  • Humans
  • Hypoglycemic Agents / chemistry
  • Hypoglycemic Agents / pharmacology
  • Lipids
  • Plant Extracts / chemistry
  • Plant Extracts / pharmacology
  • Saccharum* / metabolism
  • Spectroscopy, Fourier Transform Infrared
  • Sugars
  • alpha-Glucosidases / metabolism

Substances

  • Antihypertensive Agents
  • alpha-Glucosidases
  • Hypoglycemic Agents
  • Sugars
  • Lipids
  • Plant Extracts

Grants and funding

This work was co-financed by the European Regional Development Fund (ERDF), through the Operational Program for Competitiveness and Internationalization (POCI) supported by Amyris Bio Products Portugal, Unipessoal Lda, and the Escola Superior de Biotecnologia—Universidade Católica Portuguesa through the Alchemy project ‘Capturing High Value from Industrial Fermentation Bio Products (POCI-01-0247-FEDER-027578)’.