نتایج جستجو برای: tpc and tfc

تعداد نتایج: 16827573  

Journal: :Iforest - Biogeosciences and Forestry 2022

The effects of drought simulated via osmotic stress induced by polyethylene glycol (PEG) in the growing medium were examined on two Wild cherry (Prunus avium L.) clones (6A and 8A) based thirteen morphometric, physiological, biochemical traits. shoot tips exposed to PEG concentrations (20 50 g L-1) designed for micropropagation with axillary buds. results showed that all morphological physiolog...

Scrophularia atropatana (S. atropatana), an Iranian plant belonging to the family of Scrophulariaceae, was assigned for its chemical compositions and biological activities of essential oil (EO) and extracts of the aerial parts of the plant during the flowering stage. Combination of GC-MS and GC-FID was assessed for analyzing the chemical compositions of the EO from th...

Journal: :Molecules 2017
Forough Khajehei Mehrdad Niakousari Maral Seidi Damyeh Nikolaus Merkt Wilhelm Claupein Simone Graeff-Hoenninger

Yacon (Smallanthus sonchifolius Poepp.) leaves are a potentially rich source of bioactive compounds, such as phenolic acids and flavonoids. In this study, the effect of the extraction method (ohmic-assisted decoction (OH-DE) and decoction (DE)), yacon cultivar (red and white), and leaf age (young and old) on the quality/quantity of extracted phytochemicals were investigated. Extraction yield, e...

2017
Agnieszka Viapiana Marek Wesolowski

The aim of this work was to evaluate the antioxidant potential of teas prepared from twenty-four commercially available berries and flowers of Sambucus nigra L. in relation to their phenolic profile, as reflected by the most representative phenolic acids (caffeic, chlorogenic, p-coumaric, ferulic, gallic and syringic acids); flavonols (quercetin, kaempferol, myricetin and rutin); and total phen...

2017
Jin Hwa Park Yun Jin Lee Yeon Ho Kim Ki Sun Yoon

The objective of this study was to investigate the antioxidant and antimicrobial properties of quinoa cultivated in Korea and to compare it with imported quinoa from the USA and Peru. The highest amount of total flavonoid contents (TFC) with 20.91 mg quercetin equivalents/100 g was measured in quinoa seed extract cultivated in Korea, while the total phenolic contents (TPC) were significantly hi...

Journal: :Lekovite sirovine 2022

In the present study, basil (Ocimum basilicum L.) and lovage (Levisticum officinale Koch.) extracts were obtained using maceration, ultrasound- microwave-assisted extractions (UAE MAE, respectively). Varying different extraction solvents, including water, methanol, acetone, ethyl acetate, analyses of total polyphenol flavonoid contents (TPC TFC, respectively), as well antioxidant properties (DP...

2017
Feng Pan Tian-Jiao Su Shi-Mei Cai Wei Wu

Diverse fungal endophytes are rich fungal resources for the production of an enormous quantity of natural products. In the present study, 53 fungal endophytes were isolated from the bulbs of Fritillaria unibracteata var. wabuensis (FUW). Of these, 49 strains were identified and grouped into 17 different taxa, and priority was conferred to the Fusarium genus. All fungal fermented filtrates displ...

Journal: :Molecules 2014
Pei Yin Tay Chin Ping Tan Faridah Abas Hip Seng Yim Chun Wai Ho

The effects of ethanol concentration (0%-100%, v/v), solid-to-solvent ratio (1:10-1:60, w/v) and extraction time (30-180 min) on the extraction of polyphenols from agarwood (Aquilaria crassna) were examined. Total phenolic content (TPC), total flavonoid content (TFC) and total flavanol (TF) assays and HPLC-DAD were used for the determination and quantification of polyphenols, flavanol gallates ...

Journal: :Molecules 2018
Khurul Ain Mohamed Mahzir Siti Salwa Abd Gani Uswatun Hasanah Zaidan Mohd Izuan Effendi Halmi

In this study, the optimal conditions for the extraction of antioxidants from the Buah Mahkota Dewa fruit (Phaleria macrocarpa) was determined by using Response Surface Methodology (RSM). The optimisation was applied using a Central Composite Design (CCD) to investigate the effect of three independent variables, namely extraction temperature (°C), extraction time (minutes) and extraction solven...

Journal: :Molecules 2017
Lizhen Zhang Chu Wang Qiuxia Meng Qin Tian Yu Niu Wei Niu

The objectives of this study were to characterize the antioxidant capacities and phytochemicals such as phenolics and flavonoids in four parts of Euphorbia lathyris L. HPLC was employed to detect the type and content of phenolic acids and flavonoids in the root, stem, seed, and testa of the plant. The total phenolic content (TPC) and total flavonoid content (TFC) were different among various pa...

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