Anthocyanins are a type of flavonoid,
a class of compounds with antioxidant effects, found in high quantities in various fruits and vegetables.
They are water-soluble pigments that may appear red, purple, or blue depending on the pH.
They belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway.
These pigments are found in the cell vacuole, mainly in flowers and fruits, but also in leaves, stems, and roots.
The primary role of anthocyanins in plants is attracting pollinators and seed dispersers.
However, they also contribute to a plant's defenses against various stresses such as cold, drought, and disease.
For humans, anthocyanins are notable for their potential health benefits. They are potent antioxidants,
protecting the body's cells from damage by free radicals. Some research suggests that they may offer anti-inflammatory,
anti-viral, and anti-cancer benefits. They may also aid in the prevention of cardiovascular disease and improve visual
and cognitive functions.
Anthocyanins are part of the reason fruits and vegetables with deep red, purple, and blue colours are often associated with health-promoting properties.
Examples of some flowers containing anthocyanins are listed below:
Roses -
Many varieties of roses contain anthocyanins, giving them colours ranging from pink to deep red and purple..
Pansies - These flowers exhibit a wide variety of colours due to anthocyanins,
including many shades of purple and blue.
Petunias - The purple and blue hues of many petunias are a result of anthocyanins.
Hydrangeas - In some varieties of hydrangeas, the colour of the flowers
can be changed by adjusting the pH level of the soil, which in turn affects the colour of the anthocyanins.
Tulips - Some tulips have deep purple, pink, or red hues due to
the presence of anthocyanins.
Delphiniums - The stunning blue colour of delphiniums is due to anthocyanins.
Examples of some seeds containing anthocyanins are listed below:
Chia Seeds -
Black chia seeds contain a certain amount of anthocyanins, primarily cyanidin and delphinidin derivatives, which contribute to their dark coluor.
Black Soybean - Black soybean seeds have anthocyanins in their seed coat, primarily
cyanidin-3-glucoside, delphinidin-3-glucoside, and peonidin-3-glucoside.
Grape Seeds (from dark grapes) - Grape seeds from dark-coloured grapes
contain several anthocyanins, including malvidin, peonidin, and cyanidin.
Black Sesame Seeds - Black sesame seeds have anthocyanins,
specifically cyanidin-3-glucoside, that contribute to their black colour.
The extraction process, including the solvents and methods used, can influence the concentration and types of anthocyanins present in the final extract.
It is often the case that a balance needs to be found between fully-extracting all anthocyanins while also ensuring that the compounds that are
obtained are of a high quality and not degraded.
At Celignis we have extensive experience in the design and optimisation of extraction protocols for a wide variety of chemical constituents from
many different biomass types. If needed we can also work on processes to separate and purify the target compounds.
Click here to read more about Celignis's Bioprocess Development Services for the extraction of
chemicals from biomass.
Celignis to Sponsor and Present at Major Biochar Event
The event takes place on May 3rd at Carrick-on-Shannon
We are pleased to announce that, on May 3rd, Celignis will be presenting and exhibiting at the National Biochar and Carbon Products Conference 2023, which is taking place in Carrick-on-Shannon in County Leitrm, Ireland.
This conference is being organised under the auspices of the Interreg Northwest Europe-funded THREE C Project, entitled 'Creating and sustaining Charcoal value chains to promote a Circular Carbon economy in NWE Europe'.
The conference will highlight both Irish stakeholders who are currently working in the biochar and carbon products sector, but also partners from the THREE C project (covering Netherlands, Luxembourg, Germany, Belgium, France and Wales, as well as Ireland) who have interesting stories and products to share.
Read about the wide variety of analysis packages we have for biochar
Click here to read about the different analysis packages that Celignis offers for the evaluation on biochars. These analyses cover properties relevant to a wide variety of applications, including soil amendment, carbon sequestration, bioenergy, and biomaterials.
For a short period we are offering two TGA analyses for the price of one!
To celebrate the arrival of our thermogravimetric (TGA) equipment, we are offering, for a limited time period, two TGA analyses for the price of one. Click here to read more about TGA analyses at Celignis and to see the various packages on offer.
To avail of this special offer please mention the code (TGA-AUGUST) in an email or when placing an order via the Celignis Database.
This 5 minute presentation was given at the recent IBioIC conference
Celignis recently exhibited at IBioiC's annual conference, held in Glasgow on June 6-7.
During that event Lalitha, Celignis's CIO, gave a short 5 minute presentation on the EnXylaScope collaborative EU research project that Celignis is involved in.
You can view the presentation below or here on YouTube.
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