Results 21 to 30 of about 1,724 (196)

Identification of <i>CqCYP76AD5v1</i>, a gene involved in betaxanthin biosynthesis in <i>Chenopodium quinoa</i>, and its product, betaxanthin, which inhibits amyloid-β aggregation. [PDF]

Plant Biotechnol (Tokyo)
Betalain pigments, primarily produced by the order Caryophyllales, are categorized into betacyanins (red/purple) and betaxanthins (yellow/orange). While the biosynthetic pathways of these pigments are well-studied, the genes responsible for betaxanthin biosynthesis in quinoa were previously unknown.
Imamura T, Koga H, Miyazato A, Xu Z, Shigehisa R, Ohki S, Mori M.   +6 more
europepmc   +2 more sources

Metabolite Profiling Analysis and the Correlation with Biological Activity of Betalain-Rich Portulaca grandiflora Hook. Extracts

Antioxidants, 2022
The aim of the study was to evaluate the possible correlation between the bioactivity and the phytochemical profile of four betalain-rich extracts from Portulaca grandiflora Hook. The HPLC-DAD-ESI-MS analysis indicated the presence of 19 betaxanthins and
Aneta Spórna-Kucab, Anna Tekieli, Agnieszka Grzegorczyk, Łukasz Świątek, Barbara Rajtar, Krystyna Skalicka-Woźniak, Karolina Starzak, Boris Nemzer, Zbigniew Pietrzkowski, Sławomir Wybraniec   +9 more
doaj   +1 more source

Comparative Evaluation of Ultrasonic, High Pressure, and Pulsed Electric Field Processing on the Extraction and Storage Stability of Betalains From Red Beet By-Products. [PDF]

J Food Sci
ABSTRACT This study explores the potential of red beet peel (RBP) and red beet stalk (RBS), often underutilized by‐products, as rich sources of natural pigments and bioactive compounds. Three non‐thermal green extraction methods, namely, high‐pressure processing, ultrasound, and pulsed electric field treatment, were evaluated for their efficiency in ...
Yeasmen N, Bhuiyan MHR, Gariepy Y, Taherian AR, Dumont MJ, Ramaswamy H, Orsat V.   +6 more
europepmc   +2 more sources

Composition, Color Stability and Antioxidant Properties of Betalain-Based Extracts from Bracts of Bougainvillea

Molecules, 2022
Betalains in bracts of Bougainvillea are of great application potential as natural food colorants and antioxidants. This study explored the color, spectra, composition, storage stability, and antioxidant properties of betalain-based Bougainvillea bracts ...
Qiang Wu, Xueying Fu, Zhuo Chen, Huafeng Wang, Jian Wang, Zhixin Zhu, Guopeng Zhu   +6 more
doaj   +1 more source

Betalain Content and Morphological Characteristics of Table Beet Accessions: Their Interplay with Abiotic Factors

Agronomy, 2022
Table beet (Beta vulgaris L.) is a source of the natural red-colored food dye (E162), highly demanded for the broad spectrum of its biological activity. The relevance of this study is dictated by the lack of knowledge about the dynamics of changes in the
Diana V. Sokolova, Natalia A. Shvachko, Aleksandra S. Mikhailova, Vitaliy S. Popov   +3 more
doaj   +1 more source

Genetically encoded betaxanthin-based small-molecular fluorescent reporter for mammalian cells [PDF]

Nucleic Acids Research, 2020
Abstract We designed and engineered a dye production cassette encoding a heterologous pathway, including human tyrosine hydroxylase and Amanita muscaria 4,5-DOPA dioxygenase, for the biosynthesis of the betaxanthin family of plant and fungal pigments in mammalian cells.
Stücheli, Pascal, Sieber, Simon, Fuchs, David W, Scheller, Leo, Strittmatter, Tobias, Saxena, Pratik, Gademann, Karl, Fussenegger, Martin   +7 more
openaire   +4 more sources

Defining Color Change in Pitaya: A Close Look at Betacyanin Synthesis Genes in Stenocereus queretaroensis

Frontiers in Sustainable Food Systems, 2021
Betalains are tyrosine-derived plant pigments present in several species of the Caryophyllales order. Betalains are classified in red betacyanins and yellow betaxanthins and are implicated in plant stress tolerance and visual attraction for pollinators ...
Javier Morales, Jorge Araujo-Sanchez, Lizbeth Castro-Concha, Angela Ku, Alejandro Pereira-Santana, María de Lourdes Miranda-Ham, Enrique Castaño   +6 more
doaj   +1 more source

Biological Properties and Applications of Betalains

Molecules, 2021
Betalains are water-soluble pigments present in vacuoles of plants of the order Caryophyllales and in mushrooms of the genera Amanita, Hygrocybe and Hygrophorus. Betalamic acid is a constituent of all betalains.
Izabela Sadowska-Bartosz, Grzegorz Bartosz   +1 more
doaj   +1 more source

Enhancing sheep milk yogurt with prickly pear (Opuntia ficus-indica L.) flours (peel and pulp): nutritional, techno-functional, and sensory evaluation. [PDF]

J Sci Food Agric
Abstract BACKGROUND The aim of the present work was to evaluate the chemical composition and characterize the physicochemical, techno‐functional and antioxidant properties of flours obtained from the peel and pulp of prickly pear and to assess the effect of their incorporation on the composition, physicochemical parameters, microbiology, antioxidant ...
Muñoz-Tebar N, Botella-Martínez C, Lucas-González R, Lorenzo JM, Pérez-Álvarez JÁ, Fernández-López J, Viuda-Martos M.   +6 more
europepmc   +2 more sources

The Decisive Step in Betaxanthin Biosynthesis Is a Spontaneous Reaction1 [PDF]

Plant Physiology, 1999
Abstract Experiments were performed to confirm that the aldimine bond formation is a spontaneous reaction, because attempts to find an enzyme catalyzing the last decisive step in betaxanthin biosynthesis, the aldimine formation, failed. Feeding different amino acids to betalain-forming hairy root cultures of yellow beet (Beta vulgaris L.
, Schliemann, , Kobayashi, , Strack
openaire   +2 more sources