ArticleMolecules (Basel, Switzerland)2022
Composition, Color Stability and Antioxidant Properties of Betalain-Based Extracts from Bracts of
Article in Molecules (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 23 citations in OpenAlex.
- Phytochemical Characterization and Mechanistic Insights into the Cytotoxic Effects of Bougainvillea glabra Bract Extract in Caco-2 Colorectal Adenocarcinoma Cells.Plant foods for human nutrition (Dordrecht, Netherlands) · 2026Article
- Bioactive Fractions fromMolecules (Basel, Switzerland) · 2026Article
- Anticancer and Anti-Inflammatory Potential of Betalains: A Systematic Review on Preclinical Studies.Food science & nutrition · 2026Review
- Construction of the First Genetic Linkage Map and QTL Analysis for Morphological Traits inPlants (Basel, Switzerland) · 2026Article
- Article
- Analysis of Pigmentation Changes in Bracts ofBiology · 2025Article
- A Comprehensive Review of Edible Flowers with a Focus on Microbiological, Nutritional, and Potential Health Aspects.Foods (Basel, Switzerland) · 2025Review
- Antioxidant Activity ofFoods (Basel, Switzerland) · 2024Article
- Semisynthesis of Betaxanthins from Purified Betacyanin ofMolecules (Basel, Switzerland) · 2024Article
- Pre-Treatment, Extraction Solvent, and Color Stability of Anthocyanins from Purple Sweetpotato.Foods (Basel, Switzerland) · 2024Article
- A high-qualityHorticulture research · 2023Article
- Pantranscriptome combined with phenotypic quantification reveals germplasm kinship and regulation network of bract color variation inFrontiers in plant science · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Betalains in bracts of Bougainvillea are of great application potential as natural food colorants and antioxidants. This study explored the color, spectra, composition, storage stability, and antioxidant properties of betalain-based Bougainvillea bracts extracts (BBEs) to verify their application value. The results showed that Bougainvillea bract color variance is due to varied contents and proportions of betacyanins (Bc) and betaxanthins (Bx). Bc or Bx alone determined hues of purple or yellow, respectively; the co-existence of Bc and Bx would produce varied hues of red. BBEs showed bright color and good antioxidant properties under a wide pH range. The pH range of 5−6 was optimal for the highest color stability, and pHs 3−8 were optimal for stronger antioxidants. Bc mainly underwent color fading during storage, while Bx easily produced dark precipitates or melanism under strong acidic (pH < 4) or alkaline conditions (pH > 8). However, Bougainvillea Bx showed 3−4 times higher antioxidant ability than Bc. Different considerations for Bc and Bx are needed for varied application purposes. The purple bracts containing only Bc would be more suitable as colorant sources, while additional Bx can bring enhancement of antioxidant ability and richness of Bougainvillea extract color.
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Registered trials
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