Results 61 to 70 of about 197,159 (249)

The formation of homogentisate in the biosynthesis of tocopherol and plastoquinone in spinach chloroplasts [PDF]

open access: yes, 1982
Homogentisate is the precursor in the biosynthesis of -tocopherol and plastoquinone-9 in chloroplasts. It is formed of 4-hydroxyphenylpyruvate of the shikimate pathway by the 4-hydroxyphenylpyruvate dioxygenase.
Soll, Jürgen   +5 more
core   +1 more source

Bioenergetic Materials for Tissue Regeneration: Modulating Metabolism to Promote Cellular Anabolism

open access: yesAdvanced Science, EarlyView.
Bioenergetic materials (BEMs) modulate cellular metabolism to promote tissue regeneration. Their principal mechanisms of action include metabolic substrate supplementation, metabolic enzyme modulation, organelle transfer, electrical current regulation, redox homeostasis modulation, and oxygen tension modulation.
Yuchen He   +7 more
wiley   +1 more source

Polyphenol oxidase activity staining in polyacrylamide electrophoresis gels

open access: yes, 1997
An analytical method allowing the detection of polyphenol oxidase activity on polyacrylamide gel electrophoresis (PAGE) is described. The method is rapid, sensitive and specific and is based on a coupling reaction between 4-tert-butyl-o-benzoquinone and ...
Giulia Soddu   +9 more
core   +1 more source

Influence of Application of Microwave Energy on Quality Parameters of Mate Tea Leaves (Ilex paraguariensis St. Hil.)

open access: yesFood Technology and Biotechnology, 2009
Polyphenol oxidase and peroxidase are enzymes responsible for browning and quality deterioration in mate tea leaves. The main objective of this work is to investigate the influence of microwave energy on the oxidase activity, moisture content and colour ...
Giovanna Cristina Ceni   +6 more
doaj  

Biochemical and molecular analysis of Camellia sinensis (L.) O. Kuntze tea from the selected P/11/15 clone

open access: yesJournal of Genetic Engineering and Biotechnology, 2016
Green tea is one of the most important beverages consumed across the world and it possesses various phytotherapeutics. Polyphenol oxidase (PPO) activity, total polyphenols, catechins, amino acid content and enzymatic antioxidants are considered to be ...
Samynathan Ramkumar   +6 more
doaj   +1 more source

Conjugation of Coffee Phenolics With Milk Bioactive Peptides: Characterization of Coffee and Apple Phenolics and Evaluation of Polyphenol Oxidase as a Natural Biocatalyst. [PDF]

open access: yesFood Sci Nutr
Green coffee beans provided a chlorogenic acid (CQA)‐rich extract, while apple juice served as a natural source of polyphenol oxidase (PPO). The coffee phenolics were characterized by HPLC–MS and combined with milk bioactive peptides, BioZate1 and Glycomacropeptide, under alkaline and PPO‐mediated conditions.
Hamadneh BN   +11 more
europepmc   +2 more sources

Enhancing Meat Quality Through Dietary Fiber: Insights Into the Gut Microbiota‐Derived Short‐Chain Fatty Acids‐Muscle Axis

open access: yesAnimal Research and One Health, EarlyView.
Dietary fiber (DF) modulates meat quality through the gut‐muscle axis by reshaping gut microbiota, improving intestinal integrity, reducing inflammation, and regulating muscle metabolism. These mechanisms influence muscle fiber characteristics and post‐mortem biochemistry, thereby enhancing tenderness, juiciness, color, flavor, and nutritional value of
Zeshan Zulfiqar   +8 more
wiley   +1 more source

Beyond antimicrobials: Ecological nano‐strategies for rebalancing dysbiotic oral microbial homeostasis

open access: yesBMEMat, EarlyView.
Oral microbial homeostasis, a dynamic host‐microbe balance, is vital in infectious diseases. Conventional antibiotics often disrupt this homeostasis, spurring interest in nanomaterials for oral microbial homeostasis rebalancing. This review outlines nanomaterial strategies across three ecological levels (population/community, ecosystem, and cross ...
Chen Hu   +10 more
wiley   +1 more source

Polyphenol Oxidase as a Biochemical Seed Defense Mechanism

open access: yesFrontiers in Plant Science, 2014
Seed dormancy and resistance to decay are fundamental survival strategies, which allow a population of seeds to germinate over long periods of time. Seeds have physical, chemical, and biological defense mechanisms that protect their food reserves from ...
E. Patrick Fuerst   +3 more
doaj   +1 more source

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