Understanding the maturity of coconut water through 1 H NMR profiling and MPAES analyses.

Autor: Bharadwaj M R S; Department of Plantation Products, Spice and Flavor Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India., Prasad B R H; Food Safety and Analytical Quality Control Laboratory, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India., Chaudhari SR; Department of Plantation Products, Spice and Flavor Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address: sachinnmr@cftri.res.in.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 Oct 01; Vol. 454, pp. 139748. Date of Electronic Publication: 2024 May 21.
DOI: 10.1016/j.foodchem.2024.139748
Abstrakt: This study investigated the relationship between coconut maturity stages and the sugar, amino acid, and mineral profiles of coconut water (CW). Metabolite profiles were analysed using 1 H NMR, covering glucose (G), fructose (F), sucrose (S), reducing sugars (RS), total sugars (TS), amino acids, and organic acids. Mineral composition was measured using Microwave Plasma Atomic Emission Spectroscopy (MPAES). The results revealed distinct metabolite and mineral profiles across different maturity stages. Immature CW had high G/F and RS/TS ratios but low S/G ratios. Conversely, mature CW showed decreased G/F and RS/TS ratios but an increase in S/G. Mineral analysis revealed potassium as the predominant mineral in CW, peaking in the youngest stage and declining with maturity. Sodium, magnesium, and calcium showed a similar pattern, with higher concentrations in early than in later stages. The study identifies the age of 9-10 months as optimal stages for selecting tender coconut water.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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