Results 1 to 10 of about 66,627 (253)
A novel quinone: Quinone methide isomerase generates quinone methides in insect cuticle
FEBS Letters, 1988 Insoluble cuticle‐bound enzyme(s) of Manduca sexta pharate pupae, which is known to convert N‐acetyldopamine to N‐acetylnorepinephrine through the intermediate formation of quinone methide, also converted exogenously supplied N‐acetyldopamine quinone to N‐acetylnorepinephrine.
Manickam Sugumaran
exaly +3 more sources
Electrochemistry, 2022 In this paper, we propose voltammetry for determining amino acidity in Japanese sake. The measurement principle of this voltammetric method is based on a concept of acid-base back titration and a decrease of cathodic prepeak current of 3,5-di-tert-butyl ...
Akira KOTANI +4 more
doaj +1 more source
Nanomaterials, 2021 Nanocatalysts are a promising alternative to natural enzymes as the signal labels of electrochemical biosensors. However, the surface modification of nanocatalysts and sensor electrodes with recognition elements and blockers may form a barrier to direct ...
Xiaohua Ma +4 more
doaj +1 more source
Phenolic signals for prehaustorium formation in Striga hermonthica
Frontiers in Plant Science, 2022 Striga hermonthica is a root parasitic plant that causes considerable crop yield losses. To parasitize host plants, parasitic plants develop a specialized organ called the haustorium that functions in host invasion and nutrient absorption. The initiation
Natsumi Aoki +7 more
doaj +1 more source
Foods, 2022 Wheat germ, a by-product of the flour milling industry, is currently commercialized mainly for animal feed applications. This study aims to explore and optimize the process of wheat germ fermentation to achieve products with enhanced nutritional ...
Elnaz Bayat +5 more
doaj +1 more source
Antioxidants, 2021 Neuromelanin (NM) accumulates in catecholamine long-lived brain neurons that are lost in neurodegenerative diseases. NM is a complex substance made of melanic, peptide and lipid components.
Andrea Capucciati +5 more
doaj +1 more source
4,7-Dimethoxy-6-propyl-2H-1,3-benzodioxole-5-carbaldehyde
Molbank, 2023 A simple intermediate for the synthesis of methoxy-analogues of coenzymes Q with substituents having various chain lengths based on natural polyalkoxyallylbenzene apiol has been developed.
Dmitry V. Tsyganov, Victor V. Semenov
doaj +1 more source
Quinone Reductase 2 Is a Catechol Quinone Reductase [PDF]
Journal of Biological Chemistry, 2008 The functions of quinone reductase 2 have eluded researchers for decades even though a genetic polymorphism is associated with various neurological disorders. Employing enzymatic studies using adrenochrome as a substrate, we show that quinone reductase 2 is specific for the reduction of adrenochrome, whereas quinone reductase 1 shows no activity.
Yue, Fu +2 more
openaire +2 more sources
Regioselectivity of conjugate additions to monoalkyl-1,4-benzoquinones [PDF]
Journal of the Serbian Chemical Society, 2002 The regioselectivity of the reaction of conjugate addition of thiols, amines, methanol and hydrogen chloride with the monoalkyl-1,4-benzoquinones avarone and 2-tert-butyl-1,4-benzoquinone was investigated.
SNEZANA TRIFUNOVIC +5 more
doaj +3 more sources
Molecules, 2022 Colorectal cancer (CRC), breast cancer, and chronic myeloid leukemia (CML) are life-threatening malignancies worldwide. Although potent therapeutic and screening strategies have been developed so far, these cancer types are still major public health ...
Halilibrahim Ciftci +9 more
doaj +1 more source