Results 91 to 100 of about 5,388,942 (324)

Novel Strecker degradation products of tyrosine and dihydroxyphenylalanine

Czech Journal of Food Sciences, 2001
Tyrosine was oxidised with either potassium peroxodisulphate or glyoxal. Volatile reaction products were isolated and analysed by GC/FID and GC/MS, derivatised with diazomethane and analysed by the same methods.
J. Adamiec, K. Cejpek, J. Rössner, J. Velíšek   +3 more
doaj   +1 more source

Chemical and sensory analysis of commercial Navel oranges in California. [PDF]

, 2019
Seven lots of commercially available Navel oranges grown in California were evaluated with flavoromic, metabolomic, sensory descriptive analysis, and consumer testing techniques to identify sensory and chemical drivers of liking.
Guinard, Jean-Xavier, McNeil, Christopher, Pham, Vi D, Simons, Tyler, Slupsky, Carolyn, Wang, Siyu, Wang, Yu   +6 more
core  

Chemical Bonding Analysis on Amphoteric Hydrogen - Alkaline Earth Ammine Borohydrides

, 2017
Usually the ions in solid are in the positive oxidation states or in the negative oxidation state depending upon the chemical environment. It is highly unusual for an ion having both positive as well as negative oxidation state in a particular compound ...
Kiruthika, S, Ravindran, P
core   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Evaluation of Ethanol Grade on the Robustness of Acid Number Determination in Fish Oil

Indonesian Journal of Chemical Analysis
The robustness evaluation of the acid number analysis method in fish oil was carried out to see the effect of the type of ethanol used as a solvent in the titration process. The types of ethanol used in this study were pro analysis grade, pharma and food
Tri Esti Purbaningtias, Sandy
doaj   +1 more source

Chemical evolution of turbulent protoplanetary disks and the Solar nebula

, 2011
This is the second paper in a series where we study the influence of transport processes on the chemical evolution of protoplanetary disks. Our analysis is based on a flared alpha-model of the DM Tau system, coupled to a large gas-grain chemical network.
Aikawa, Aikawa, Aikawa, Aikawa, Aikawa, Andrews, Bauer, Bergin, Bergin, Bethell, Biver, Bockelée-Morvan, Boss, Bradley, Brownlee, Calvet, Cant, Cazaux, Chapillon, Crabtree, D'Alessio, d'Hendecourt, D. Semenov, D. Wiebe, Dickens, Duschl, Dutrey, Dutrey, Dutrey, Finocchi, Fogel, Fukagawa, Gail, Garrod, Glassgold, Glassgold, Glassgold, Glassgold, Gorti, Gorti, Greenberg, Greenberg, Harada, Hasegawa, Heinzeller, Henning, Hersant, Hirose, Hughes, Juhász, Jørgensen, Kalenskii, Kamp, Katz, Kim, Lahuis, Lee, Lee, Lee, Leger, Lynden-Bell, Mazzitelli, Meijerink, Najita, Najita, Pagani, Pascucci, Perez-Becker, Pierce, Pontoppidan, Pontoppidan, Pontoppidan, Prinn, Qi, Qi, Sakai, Salyk, Salyk, Sarrasin, Savin, Schräpler, Semenov, Semenov, Shakura, Shalabiea, Simon, Terada, Turner, Turner, Vasyunin, Vasyunin, Vasyunin, Wakelam, Wakelam, Walsh, Willacy, Willacy, Wolf, Wooden, Wooden, Woods, Woods, Zasowski, Öberg   +103 more
core   +1 more source

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

FEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke, Nils Alexander Lakomek, Georg Groth   +2 more
wiley   +1 more source

Techno-Chemical Analysis [PDF]

Science, 1906
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openaire   +2 more sources