The acylated plant pigments synthesized by lipase-catalyzed transesterification with aromatic acids were compared in respect of their light-resistance and radical-scavenging ability. With both the flavonols and anthocyanins, their acylated derivatives were more stable against illumination with fluorescent light than their non-acylated glucosides. Their radical-scavenging ability partially decre...

Anthocyanins are the largest class of water soluble plant pigments and a common part of the human diet. They may have many potential health benefits, including antioxidant, anti-inflammatory, anti-cancer, and cardioprotective activities. However, anthocyanin metabolism is not well understood. Studies suggest that anthocyanins absorption may occur in the stomach, in which the acidic pH favors an...

Anthocyanins are flavonoid pigments that accumulate in the large central vacuole of most plants. Inside the vacuole, anthocyanins can be found uniformly distributed or as part of sub-vacuolar pigment bodies, the Anthocyanic Vacuolar Inclusions (AVIs). Using Arabidopsis seedlings grown under anthocyanin-inductive conditions as a model to understand how AVIs are formed, we show here that the accu...

Betalains are the yellow and violet pigments that substitute anthocyanins in plants belonging to the order Caryophyllales. These pigments have attracted much attention because of their bioactivities, which range from an antioxidant capacity to the chemoprevention of cancer. However, the biosynthetic pathway of betalains remains under discussion; the main steps have been characterized in recent ...

Many studies have demonstrated the antioxidant activity and health benefits of the anthocyanins. The juice of Rubus sp. contains large amounts of anthocyanins and these flavonoids pigments give their characteristic color which tends to degrade easily, also its stability is affected during processing and storage, therefore spray drying can be used to avoid the degradation. The objective of the p...

The anthocyanin composition was analysed in strawberry fruits from five different cultivars (cv. Eris, Oso Grande, Carisma, Tudnew and Camarosa). Twenty-five defined anthocyanin pigments were detected, most of them containing Pelargonidin (Pg) as aglycone; some cyanidin (Cy) derivatives were also found. Glucose and rutinose were the usual substituting sugars, although arabinose and rhamnose tat...

Cadmium ions influence on the content of anthocyanins as non-plastid pigments and the activity of phenylalanine ammonia-lyase (EC 4.3.1.24) as primary enzyme of their biosynthesis in two lettuce varieties (Lactuca sativa L.) with different anthocyanin content was investigated. The increases in anthocyanin content and enzymatic activity of phenylalanine ammonia-lyase of both lettuce plant variet...

Anthocyanins, the naturally occurring pigments responsible for most red to blue colours 12 of flowers, fruits and vegetables, have also attracted interests because of their potential health 13 effects. With the aim of contributing to major insights into their structure-activity relationship 14 (SAR), we have evaluated the radical scavenging and biological activities of selected purified 15 anth...

Anthocyanins are a major class of plant phenolic pigments, responsible for the red, purple or blue color leaves, flowers, tubers, fruits and certain vegetables. They considered largest most important group water-soluble pigments in nature have been described to multiple health-promoting properties. However, bioavailability anthocyanins is reportedly extremely low, affected by factors inherent m...