Isolation of quercetin and kaempferol from Rubus ulmifolius and their fluorometric assay

1982 ◽  
Vol 27 (2) ◽  
pp. 155-161 ◽  
Author(s):  
S.M. Tzouwara-Karayanni ◽  
S.M. Philianos
Keyword(s):  
Fluorometric Assay ◽  
Rubus Ulmifolius

A fluorometric assay for α-glucosidase activity based on quaternary AgInZnS QDs

2021 ◽  
Vol 188 (7) ◽  
Author(s):  
Jiabao Zhang ◽  
Jinying Liu ◽  
Mengke Wang ◽  
Guannan Wang ◽  
Xingguang Su
Keyword(s):  
Fluorometric Assay ◽  
Glucosidase Activity

scholarly journals Antioxidant, Antihypertensive and Antimicrobial Properties of Phenolic Compounds Obtained from Native Plants by Different Extraction Methods

2021 ◽  
Vol 18 (5) ◽  
pp. 2475
Author(s):  
Francisco Ramiro Boy ◽  
Rocío Casquete ◽  
Ana Martínez ◽  
María de Guía Córdoba ◽  
Santiago Ruíz-Moyano ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds ◽  
Native Plants ◽  
Antimicrobial Properties ◽  
Extraction Methods ◽  
Ultra Sound ◽  
Antihypertensive Activity ◽  
Ultrasound Extraction ◽  
Rubus Ulmifolius ◽  
Cistus Salviifolius

This study aims to evaluate the efficacy of two methods (agitation and ultra-sound) for extracting phenolic compounds from 15 native plants. Plant species collected in the Dehesa of Extremadura were used. The antioxidant, antihypertensive and antimicrobial activity of the phenolic extracts was investigated. Significantly different results were obtained when comparing the two extraction methods, with the highest concentrations of phenolic compounds found for ultrasound extraction. In addition, the extracts obtained for Cistus albidus, Cistus salviifolius, Rubus ulmifolius and Quercus ilex showed the highest concentrations of phenolic compounds. The antioxidant activity was higher in the extracts of Cistus and Q. ilex obtained by ultrasound, as was the antihypertensive activity. Antimicrobial activity was also higher in the extracts obtained by ultrasound from C. salviifolius and Q. ilex plants against bacteria and from Cistus ladanifer against yeasts. Therefore, it can be concluded that, with the ultrasound extraction of phenolic compounds from C. ladanifer, C. albidus and Q. ilex plants, it is possible to obtain extracts with important functional properties, so they could be studied for their use in food with the aim of obtaining healthy and safe products, favouring the sustainability of the environment of the Dehesa Extremeña.

Enzymatic fluorometric assay for plasma pyridoxal 5′-phosphate

1991 ◽  
Vol 24 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Henry C. Poon ◽  
Bonnie M. Schmidt
Keyword(s):  
Fluorometric Assay

Fluorometric assay of protein in native human bile

1989 ◽  
Vol 183 (2) ◽  
pp. 147-154 ◽  
Author(s):  
P.Robert C. Harvey ◽  
G.Aravinda Upadhya ◽  
Julius L. Toth ◽  
Steven M. Strasberg
Keyword(s):  
Fluorometric Assay ◽  
Human Bile

scholarly journals A Sensitive Fluorometric Assay for Dihydrodiol Dehydrogenase

1997 ◽  
Vol 117 (3) ◽  
pp. 167-177 ◽  
Author(s):  
Yoshiyuki MIYABE ◽  
Kazuya MATSUURA ◽  
Toshihiro NAKAYAMA ◽  
Yoshihiro DEYASHIKI ◽  
Isao OHYA ◽  
...  
Keyword(s):  
Fluorometric Assay ◽  
Dihydrodiol Dehydrogenase
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