Results 21 to 30 of about 68,313 (291)

A laser-scanning confocal microscopy study of carrageenan in red algae from seaweed farms near the Caribbean entrance of the Panama Canal [PDF]

open access: yes, 2016
Kappaphycus alvarezii (Doty) Doty ex P.C. Silva, a red macroalga, is a commercial source of carrageenan, a widely used polysaccharide compound important in the food and pharmaceutical industries, in nanotechnology, and in pharmacological applications ...
Anzalone, A   +4 more
core   +1 more source

Polyamines in Halophytes [PDF]

open access: yesFrontiers in Plant Science, 2019
Polyamines (PAs) are related to many aspects of the plant's life cycle, including responses to biotic and abiotic stress. On the other hand, halophytic plants are useful models for studying salt tolerance mechanisms related to the adaptive strategies that these plants present in adverse environments.
Milagros Bueno, María-Pilar Cordovilla
openaire   +3 more sources

Polyamines Upregulate Cephalosporin C Production and Expression of β-Lactam Biosynthetic Genes in High-Yielding Acremonium chrysogenum Strain

open access: yesMolecules, 2021
The high-yielding production of pharmaceutically significant secondary metabolites in filamentous fungi is obtained by random mutagenesis; such changes may be associated with shifts in the metabolism of polyamines.
Alexander A. Zhgun, Mikhail A. Eldarov
doaj   +1 more source

Polyamines in Soybeans [PDF]

open access: yesPlant Physiology, 1972
Putrescine, spermidine, and spermine were three main polyamines isolated from soybeans and partially characterized. Occurrence of polyamines in soybeans was established by separating trichloroacetic acid extracts of soybeans by cationic exchange column chromatography, identification with thin layer chromatography, paper electrophoresis, mass spectral ...
openaire   +2 more sources

Polyamines as redox homeostasis regulators during salt stress in plants

open access: yesFrontiers in Environmental Science, 2015
The balance between accumulation of stress-induced polyamines and reactive oxygen species (ROS) is arguably a critical factor in plant tolerance to salt stress.
Jayita eSaha   +7 more
doaj   +1 more source

Occurrence of Polyamines in Foods and the Influence of Cooking Processes

open access: yesFoods, 2021
Dietary polyamines are involved in different aspects of human health and play an important role in the prevention of certain chronic conditions such as cardiovascular diseases and diabetes.
Nelly C. Muñoz-Esparza   +6 more
doaj   +1 more source

Effect of Steaming and Boiling on the Antioxidant Properties and Biogenic Amines Content in Green Bean (Phaseolus vulgaris) Varieties of Different Colours [PDF]

open access: yes, 2017
Effects of boiling and steaming cooking methods were studied on total polyphenols, antioxidant capacity, and biogenic amines of three green bean varieties, purple, yellow, and green.The vegetables gave good values both for antioxidant capacity and for ...
Preti, Raffaella   +2 more
core   +3 more sources

Practical Synthesis of Polyamine Succinamides and Branched Polyamines

open access: yesChemistryOpen, 2022
AbstractAntibiotic resistance is now a growing threat to human health, further exacerbated by the lack of new antibiotics. We describe the practical synthesis of a series of substituted polyamine succinamides and branched polyamines that are potential new antibiotics against both Gram‐positive and Gram‐negative bacteria, including MRSA and Pseudomonas ...
Abdulaziz H. Alkhzem   +3 more
openaire   +4 more sources

Urinary Excretion of Free and Acetylated Polyamines in Hepatocellular Carcinoma

open access: yesThe International Journal of Biological Markers, 1998
Polyamines (putrescine, spermidine and spermine) are essential for the proliferation of normal and neoplastic cells, and have been repeatedly recommended as tumor markers, with contrasting and elusive results.
S. Antoniello   +3 more
doaj   +1 more source

Novel Fmoc-Polyamino Acids for Solid-Phase Synthesis of Defined Polyamidoamines [PDF]

open access: yes, 2011
A versatile solid-phase approach to sequence-defined polyamidoamines was developed. Four different Fmoc-polyamino acid building blocks were synthesized by selective protection of symmetrical oligoethylenimine precursors followed by introduction of a ...
Badgujar, Naresh   +2 more
core   +1 more source

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