Critical review on microplastics in fecal matter: research progress, analytical methods and future outlook

Roselle (Hibiscus sabdariffa L.), as an edible flower, has long provided an array of positive effects on human health. This benefit is a result of phenolic compounds that are naturally present mainly in the calyx. Plentiful medicinal remedies and functional foods based on this flower are available worldwide, as supported by the studies of phenolic compounds in recent decades. This paper aims to provide a comprehensive review of the composition, biological activity, and beneficial effects on human health of phenolic compounds in roselle. This review was performed in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. A structured search in the published literature for phenolics compositions in roselle was required prior to the evaluation on the validity of the reported analytical methods. Reliable identification and quantification of phenolic compounds in roselle can be achieved by employing the proper extraction and separation methods. With ample alternative analytical methods discussed here, this review provided an aid for comprehending and selecting the most appropriate method for a particular study. The applications of the analytical methods highlighted indicated that phenolic acids, flavonoids, and their derivatives have been identified and quantified in roselle with a range of biological activities and beneficial effects on human health. It was also disclosed that the composition and concentration of phenolic compounds in roselle vary due to the growth factors, cultivars, and environmental influence. Finally, apart from the research progress carried out with roselle during the last ten years, this review also proposed relevant future works.

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Bioactivity and Bioavailability of the Major Metabolites of Crocus sativus L. Flower

Molecules ◽

10.3390/molecules24152827 ◽

2019 ◽

Vol 24 (15) ◽

pp. 2827 ◽

Cited By ~ 16

Author(s):

Moratalla-López ◽

Bagur ◽

Lorenzo ◽

Salinas ◽

Alonso

Keyword(s):

Antioxidant Capacity ◽

Critical Review ◽

Analytical Methods ◽

Mechanisms Of Action ◽

Crocus Sativus ◽

Crocus Sativus L ◽

Identification And Quantification

Crocus sativus L. has been cultivated throughout history to obtain its flowers, whose dried stigmas give rise to the spice known as saffron. Crocetin esters, picrocrocin, and safranal are the main metabolites of this spice, which possess a great bioactivity, although the mechanisms of action and its bioavailability are still to be solved. The rest of the flower is composed by style, tepals, and stamens that have other compounds, such as kaempferol and delphinidin, which have an important antioxidant capacity, and these can be applied in foods, phytopharmaceuticals, and cosmetics. The aim of this work was to provide an updated and critical review of the research on the main compounds of Crocus sativus L. flower, including the adequate analytical methods for their identification and quantification, with a focus on their bioactivity and bioavailability.

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Developments in mycotoxin analysis: an update for 2015-2016

World Mycotoxin Journal ◽

10.3920/wmj2016.2138 ◽

2017 ◽

Vol 10 (1) ◽

pp. 5-29 ◽

Cited By ~ 47

Author(s):

F. Berthiller ◽

C. Brera ◽

M.H. Iha ◽

R. Krska ◽

V.M.T. Lattanzio ◽

...

Keyword(s):

Mass Spectrometry ◽

Liquid Chromatography ◽

Critical Review ◽

Analytical Methods ◽

Ergot Alkaloids ◽

Sampling Strategies ◽

Liquid Chromatography Mass Spectrometry ◽

Recent Developments ◽

Mycotoxin Analysis

This review summarises developments in the determination of mycotoxins over a period between mid-2015 and mid-2016. Analytical methods to determine aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxins, patulin, trichothecenes and zearalenone are covered in individual sections. Advances in proper sampling strategies are discussed in a dedicated section, as are methods used to analyse botanicals and spices and newly developed liquid chromatography mass spectrometry based multi-mycotoxin methods. This critical review aims to briefly discuss the most important recent developments and trends in mycotoxin determination as well as to address limitations of presented methodologies.

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Chondroitin Sulfate: A Critical Review of Generic and Specific Problems in Its Characterization and Determination—An Exemplar of a Material with an Unknown or Variable Composition (UVCB)

Journal of AOAC International ◽

10.5740/jaoacint.17-0115 ◽

2018 ◽

Vol 101 (1) ◽

pp. 196-202 ◽

Cited By ~ 3

Author(s):

Duncan Thorburn Burns ◽

Michael John Walker ◽

Christopher Mussell

Keyword(s):

Chondroitin Sulfate ◽

Critical Review ◽

Analytical Methods ◽

Cetylpyridinium Chloride ◽

Variable Composition ◽

Reference Samples ◽

Selection Of ◽

Chondroitin Sulfate A

Abstract This review discusses the criteria for the selection of appropriate reference samples of chondroitin sulfate (CS) and the properties and specific problems of analytical methods for CS, namely titration with cetylpyridinium chloride; various separations; and UV-Vis, NMR, MS, and IR spectroscopies. Suggestions are put forward with regard to acceptable protocols for manufactures’ and for official/referee analysts for the analysis of CS in products.

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