Bitter profiling of phenolic fractions of green Cyclopia genistoides herbal tea.

Fabaceae / chemistry Phenols / analysis Stereoisomerism Taste Teas, Herbal / analysis
3-β-d-Glucopyranosyliriflophenone (PubChem CID: 53396784) 3-β-d-Glucopyranosylmaclurin (PubChem CID: 101876647) 3′,5′-di-β-d-Glucopyranosylphloretin (PubChem CID: 42607692) Bitter taste Crude phenolic fractions Eriocitrin (PubChem CID: 83489) Hesperetin (PubChem CID: 72281) Hesperidin (PubChem CID: 10621) Honeybush herbal tea Isomangiferin Isomangiferin (PubChem CID: 5318597) Mangiferin Mangiferin (PubChem CID: 5281647) Narirutin (PubChem CID: 442431) Sensory analysis Vicenin-2 (PubChem CID: 442664).

Journal

Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639

Informations de publication

Date de publication:
15 Mar 2019
Historique:
received: 26 03 2018
revised: 24 08 2018
accepted: 05 10 2018
entrez: 10 11 2018
pubmed: 10 11 2018
medline: 8 1 2019
Statut: ppublish

Résumé

The bitter taste of Cyclopia genistoides infusions is unacceptable to consumers, who are used to the slightly sweet taste of the herbal teas produced from other Cyclopia species. Bitter taste intensities of crude phenolic fractions of a bitter hot water extract of C. genistoides were determined by a trained panel to identify the fraction contributing most to the bitter taste. Fractions, enriched in benzophenones (B), xanthones (X) and flavanones (F), and each tested at their infusion equivalent concentration (IEC) scored 5, 31 and 13 (on a 100-point scale), respectively. Fraction B, containing mostly iriflophenone glucosides, was perceived as not bitter. The major xanthone in fraction X, mangiferin, was significantly (p < 0.05) more bitter than its regio-isomer, isomangiferin, at equal concentration. A mixture of isomangiferin and mangiferin at their IECs was significantly (p < 0.05) less bitter than the mangiferin solution alone, indicating bitter suppression by isomangiferin.

Identifiants

DOI: 10.1016/j.foodchem.2018.10.030 PMID: 30409641
pubmed: 30409641
pii: S0308-8146(18)31794-1
doi: 10.1016/j.foodchem.2018.10.030
pii:
doi:

Substances chimiques

Phenols 0
Teas, Herbal 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

626-635

Informations de copyright

Copyright © 2018 Elsevier Ltd. All rights reserved.

Auteurs

Lara Alexander (L)

Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa. Electronic address: AlexanderL@arc.agric.za.

Dalene de Beer (D)

Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa. Electronic address: DBeerD@arc.agric.za.

Magdalena Muller (M)

Department of Food Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa. Electronic address: MM7@sun.ac.za.

Marieta van der Rijst (M)

Biometry Unit, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa. Electronic address: VanDerRijstM@arc.agric.za.

Elizabeth Joubert (E)

Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa. Electronic address: JoubertL@arc.agric.za.

Articles similaires

Sensory processing and child appetitive traits: findings from the ROLO longitudinal birth cohort study.

Anna Delahunt, Sophie Callanan, Eileen C O' Brien et al.
1.00
Humans Female Longitudinal Studies Child Male

Use of dislodgeable foliar residue studies for the evaluation of isomerization potential of active substances for non-dietary risk assessment.

Silke Wagner, Christian J Kuster
1.00
Risk Assessment Plant Leaves Isomerism Humans Stereoisomerism

Unveiling the influences of P fertilization on bioactive compounds and antioxidant activity in grains of four sorghum cultivars.

Mohammed Elsafy, Nouralhuda A J Tia, Khitma A Sir Elkhatim et al.
1.00
Sorghum Antioxidants Phosphorus Fertilizers Flavonoids

Fine mapping of a major QTL, qECQ8, for rice taste quality.

Shan Zhu, Guoping Tang, Zhou Yang et al.
1.00
Oryza Quantitative Trait Loci Taste Chromosome Mapping Phenotype

Classifications MeSH

questionsmedicales.fr › Eucaryotes › Viridiplantae › Streptophyta › Embryophyta › Tracheobionta › Magnoliopsida › Fabaceae › Bitter profiling of phenolic fractions of...
questionsmedicales.fr › Composés chimiques organiques › Hydrocarbures › Hydrocarbures cycliques › Hydrocarbures aromatiques › Dérivés du benzène › Phénols › Bitter profiling of phenolic fractions of...
questionsmedicales.fr › Phénomènes chimiques › Phénomènes de chimie organique › Isomérie › Stéréoisomérie › Bitter profiling of phenolic fractions of...
questionsmedicales.fr › Phénomènes physiologiques de l'appareil locomoteur et du système nerveux › Phénomènes physiologiques du système nerveux › Sensation › Goût › Bitter profiling of phenolic fractions of...
questionsmedicales.fr › Aliments et boissons › Boissons › Tisanes › Bitter profiling of phenolic fractions of...