Effects of organic acids on color intensification, thermodynamics, and copigmentation interactions with anthocyanins

Lv, Xiaorui; Li, Liling; Lu, Xiaomin; Wang, Wenxiu; Sun, Jianfeng; Liu, Yaqiong; Mu, Jianlou; Ma, Qianyun; Wang, Jie

doi:10.1016/j.foodchem.2022.133691

Cited by 19 publications

(4 citation statements)

References 26 publications

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“…Meanwhile, a negative Δ S indicates a decrease in the system homogeneity of the ternary complex (BSA–AK–Car), meaning the formation of more stable and orderly structures. 29 This was consistent with the results of the fluorescence quenching experiments discussed in section 3.1.2. Additionally, the observation of Δ G loss (Δ G < 0) indicated that the binding of AK to BSA and the formation of the ternary complex (BSA–AK–Car) were spontaneous.…”

Section: Resultssupporting

confidence: 91%

Binding of ankaflavin with bovine serum albumin (BSA) in the presence of carrageenan and protective effects of Monascus yellow pigments against oxidative damage to BSA after forming a complex with carrageenan

Wang

et al. 2023

Food Funct.

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Section: Resultssupporting

confidence: 91%

Binding of ankaflavin with bovine serum albumin (BSA) in the presence of carrageenan and protective effects of Monascus yellow pigments against oxidative damage to BSA after forming a complex with carrageenan

Wang

et al. 2023

Food Funct.

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“…Recently, different studies tested the copigmentation effect of different molecules on ACNs stability, including organic acids, flavonols, and amino acids [ 208 , 209 , 210 ]. In all the studies, a protective effect resulting from the copigmentation was verified, however different ratios and efficacies were also observed, suggesting that not only the type of copigment but also the type of ACNs are important for determining the success of the copigmentation processes.…”

Section: Potential Applicationsmentioning

confidence: 99%

“…In all the studies, a protective effect resulting from the copigmentation was verified, however different ratios and efficacies were also observed, suggesting that not only the type of copigment but also the type of ACNs are important for determining the success of the copigmentation processes. For instance, in the case of the organic acids, the acylation of the ACNs reduced the copigmentation rate due to steric hindrance while in the case of the amino acids (aspartic acid) the number of sugars attached to the ACNs was proportional to the decrease in the copigmentation efficacy [ 208 , 210 ].…”

Section: Potential Applicationsmentioning

confidence: 99%

Behind the Scenes of Anthocyanins—From the Health Benefits to Potential Applications in Food, Pharmaceutical and Cosmetic Fields

et al. 2022

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Anthocyanins are widespread and biologically active water-soluble phenolic pigments responsible for a wide range of vivid colours, from red (acidic conditions) to purplish blue (basic conditions), present in fruits, vegetables, and coloured grains. The pigments’ stability and colours are influenced mainly by pH but also by structure, temperature, and light. The colour-stabilizing mechanisms of plants are determined by inter- and intramolecular co-pigmentation and metal complexation, driven by van der Waals, π–π stacking, hydrogen bonding, and metal-ligand interactions. This group of flavonoids is well-known to have potent anti-inflammatory and antioxidant effects, which explains the biological effects associated with them. Therefore, this review provides an overview of the role of anthocyanins as natural colorants, showing they are less harmful than conventional colorants, with several technological potential applications in different industrial fields, namely in the textile and food industries, as well as in the development of photosensitizers for dye-sensitized solar cells, as new photosensitizers in photodynamic therapy, pharmaceuticals, and in the cosmetic industry, mainly on the formulation of skin care formulations, sunscreen filters, nail colorants, skin & hair cleansing products, amongst others. In addition, we will unveil some of the latest studies about the health benefits of anthocyanins, mainly focusing on the protection against the most prevalent human diseases mediated by oxidative stress, namely cardiovascular and neurodegenerative diseases, cancer, and diabetes. The contribution of anthocyanins to visual health is also very relevant and will be briefly explored.

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“…Intramolecular interactions exist mainly due to self-association of anthocyanins. Intermolecular interactions refer to the formation of hydrogen bonds, hydrophobic forces, van der Waals forces and ionic interactions between anthocyanins and non-anthocyanin co-pigments, including phenolic acids, proteins, ions and polysaccharides [67,68]. The involvement of Fe in the regulatory process in tulips gives the underside of the perianth a different colour from the rest of the perianth [69].…”

Section: Integrative Analysis Of the Difference In Leaf Discolouratio...mentioning

confidence: 99%

Comparison of Seasonally Adaptive Metabolic Response Strategies of Two Acer Species

Yang

Liu

et al. 2022

Forests

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Acer L. species are well known as ornamental trees due to their colourful leaves in autumn season. Acer pictum subsp. mono (Maxim.) H. Ohashi (APM) and Acer tataricum subsp. ginnala (Maximowicz) Wesmael (ATG) form leaves with completely different colours in autumn, yellow and red, respectively. In response to this phenomenon, we investigated the metabolic regulation of APM and ATG in different seasons by combining metabolomics, ionomics, the antioxidant system and pigment content. The results showed that the process of senescence and discolouration exists in leaves of different Acer species, and the regulatory strategy shows species specificity. Compared with green leaves, the accumulation of primary metabolites in autumn leaves of APM was extensively depleted, chlorophyll content was decreased, and antioxidant enzymes and C6C3C6 type phenolic compounds synergistically enhanced the antioxidant capacity of plants to cope with senescence. Carotenoid content was raised, which together with phenolic compounds (chlorogenic acid, rutin) provides the leaves with a yellow colour. The response of chlorophyll and the antioxidant system in autumn leaves of ATG is consistent with that of APM, while sugar content increases. The increased anthocyanin content in autumn leaves of ATG explains the transition of leaves from green to the red colour, which may be accompanied by the combined effect of elements (Fe, Zn, Mn) and isoflavones. This study provides a reference for the study of colouration mechanism and seasonal adaptation in Acer L. species.

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Effects of organic acids on color intensification, thermodynamics, and copigmentation interactions with anthocyanins

Cited by 19 publications

References 26 publications

Binding of ankaflavin with bovine serum albumin (BSA) in the presence of carrageenan and protective effects of Monascus yellow pigments against oxidative damage to BSA after forming a complex with carrageenan

Binding of ankaflavin with bovine serum albumin (BSA) in the presence of carrageenan and protective effects of Monascus yellow pigments against oxidative damage to BSA after forming a complex with carrageenan

Behind the Scenes of Anthocyanins—From the Health Benefits to Potential Applications in Food, Pharmaceutical and Cosmetic Fields

Comparison of Seasonally Adaptive Metabolic Response Strategies of Two Acer Species

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