ReviewJournal of food science2026
Edible Rose and Roselle: A Critical Review of Nutritional Composition, Safety, and Regulatory Considerations for Product Development.
Review in Journal of food science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
The growing demand for sustainable and health-promoting products has increased scientific and industrial interest in edible flowers as functional ingredients. Rose (Rosa spp.) and roselle (Hibiscus sabdariffa L.) have gained attention for their traditional use, diverse phytochemical composition, and emerging applications in functional foods, nutraceuticals, and cosmetics. Much existing literature treats these species descriptively, reporting compositional data without critically addressing the safety, regulatory, and standardization barriers constraining industrial adoption. This review evaluates their nutritional composition, phytochemical profiles, and techno-functional properties, while critically addressing cultivar-level compositional variability, food safety (natural toxic compounds, microbial risk, pesticide residues), allergenicity, extraction methodology standardization, regional regulatory frameworks, and post-harvest industrial standardization. Rose petals are characterized by volatile terpenoids, flavonol glycosides, and phenolic acids linked to sensory quality and antioxidant activity; documented safety concerns centre on pesticide residue risk from dual ornamental/food-crop cultivation and oil adulteration. Roselle calyces are rich in anthocyanins, organic acids, polysaccharides, and minerals, supporting use as natural colorants, acidulants, and stabilizers, though cyanogenic glycoside variability, microbiological surveillance gaps, and an almost complete absence of allergenicity data warrant attention. Roselle seed protein, proposed as a functional ingredient, lacks allergenicity characterization. Applications in beverages, bakery products, gels, and cosmetics demonstrate commercial potential, but broader adoption remains limited by compositional variability, bioactive instability, and a persistent gap between demonstrated technical feasibility and adopted, food-relevant standards for extraction, quality control, and regulatory harmonization. Future research should prioritize dose-specific toxicological and allergenicity data, validated extraction protocols, and deliberate prioritization of edible flowers within regulatory and standardization mechanisms.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.