Results 21 to 30 of about 170,611 (285)

Phytochemical screening

open access: yes, 2022
Phytochemical tests provide information about the phytochemical constituents like carbohydrates, proteins, phenolic compounds and alkaloids of plant extract.
openaire   +1 more source

OPTIMIZATION OF EXTRACTION CONDITIONS OF NATURAL DYE FROM EUCLEA DIVINORIUM USING RESPONSE SURFACE METHODOLOGY [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2020
Dyes acquired from diverse natural sources are biodegradable and require minimal use of chemicals during extraction which makes them appropriate alternatives to synthetic dyes which are non-biodegradable and toxic to the environment.
MANYIM Scolastica   +3 more
doaj  

Effect of Processing Methods on Nutritive and Antinutritive Properties of Seeds of Brachystegia eurycoma and Detarium microcarpum from Nigeria [PDF]

open access: yes, 2009
Proximate analysis of the seeds of Brachystegia eurycoma and Detrarium microcarpum were carried out on both the dehulled and undehulled samples of the flour.
Iweala, E. E. J.   +3 more
core   +1 more source

Acute and Chronic Effects of Green Oat (Avena sativa) Extract on Cognitive Function and Mood during a Laboratory Stressor in Healthy Adults: A Randomised, Double-Blind, Placebo-Controlled Study in Healthy Humans [PDF]

open access: yes, 2020
Green oat (Avena sativa) extracts contain several groups of potentially psychoactive phytochemicals. Previous research has demonstrated improvements in cognitive function following a single dose of these extracts, but not following chronic ...
Bonnländer, Bernd   +7 more
core   +2 more sources

Yield and Quality in Purple-Grained Wheat Isogenic Lines [PDF]

open access: yes, 2020
Breeding programs for purple wheat are underway in many countries but there is a lack of information on the effects of Pp (purple pericarp) genes on agronomic and quality traits in variable environments and along the product chain (grain-flour-bread ...
Akin, Beyhan   +18 more
core   +2 more sources

The complete chloroplast genome of Damnacanthus indicus C.F.Gaertn. (Rubiaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Damnacanthus indicus C.F.Gaertn. is an understorey shrub widely distributed in East Asia. In this study, the complete chloroplast genome of D. indicus was assembled and annotated.
Shu-Mao Lou   +5 more
doaj   +1 more source

Variation and Distribution of Glucosinolates in 42 Cultivars of Brassica oleracea Vegetable Crops [PDF]

open access: yes, 2010
Brassica vegetables are known to contain glucosinolates that are precursors for bioactive compounds like isothiocyanates that have been shown to play an important role in human health. This study reports the results of a screening of 11 Brassica oleracea
Dekker, M., Tebbenhoff, S., Verkerk, R.
core   +3 more sources

Complete chloroplast genome of Paphiopedilum emersonii (Orchidaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Paphiopedilum emersonii is an endemic terrestrial orchid in China. In this study, the chloroplast genome of P. emersonii was determined from BGISEQ-500 sequencing data.
Feng-Luan Tang   +3 more
doaj   +1 more source

Isolation of Two New Phenolic Glycosides from Castanopsis chinensis Hance by Combined Multistep CC and HSCCC Separation and Evaluation of Their Antioxidant Activity

open access: yesMolecules, 2023
The characteristics of high polarity and susceptibility to oxidation in phenolic glycosides increase the difficulty of their separation from natural products.
Ya-Feng Wang   +5 more
doaj   +1 more source

Investigating the Acid Failure of Aluminium Alloy in 2 M Hydrochloric Acid Using Vernonia amygdalina [PDF]

open access: yes, 2012
The acid failure of aluminium alloy in 2 M hydrochloric acid solution in the presence of Vernonia amygdalina extract was investigated using gasometric technique. Aluminium alloy coupons of dimension 4 cm by 1 cm were immersed in test solutions of free
Ajayi, O. O., Omotosho, O. A.
core   +5 more sources

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