نتایج جستجو برای: phenolics compounds

تعداد نتایج: 230062  

Journal: :Biomass Conversion and Biorefinery 2022

Abstract Hydrothermal methods are commonly applied in pretreatment of lignocellulose for conversion to biofuels and chemicals. This partially disassembles solubilizes hemicelluloses lignin, releasing sugars phenolic compounds, which potential inhibitors the subsequent enzymatic saccharification step. In this work, inhibitory effect soluble phenolics hydrothermal liquor on canonical Trichoderma ...

2017
Karolina Kraśniewska Iwona Ścibisz Małgorzata Gniewosz Marta Mitek Katarzyna Pobiega Andrzej Cendrowski

Fruits form an important part of a healthy human diet as they contain many ingredients with proven pro-health effects such as vitamins, phenolic compounds, organic acids, fiber, and minerals. The purpose of this work was to evaluate the effect of pullulan coating on the quality and shelf life of highbush blueberry during storage. General appearance, weight loss, dry matter, soluble solid conten...

2010
Rabie Khattab Michael Eskin Michel Aliani Usha Thiyam

A high-performance liquid chromatographic (HPLC) method with diode array detection (DAD) was used to determine the total phenolics, including sinapic acid derivatives in canola. Ten Western Canadian canola seeds, six other commodity canola seeds, their corresponding press cakes and meals were analyzed. Seeds of European 00 rapeseed and Brassica Juncea (Indian mustard) were included for comparis...

2013
Yihai Wang Limin Xiang Chunhua Wang Chao Tang Xiangjiu He

The antidiabetic and antioxidant activities of the ethyl acetate-soluble extract (MFE) of mulberry fruit (Morus alba L.) were investigated. In vitro, MFE showed potent α-glucosidase inhibitory activity and radical-scavenging activities against DPPH and superoxide anion radicals. In vivo, MFE could significantly decrease fasting blood glucose (FBG) and glycosylated serum protein (GSP), and incre...

2017
Lamiae El Moujahid Xavier Le Roux Serge Michalet Florian Bellvert Alexandra Weigelt Franck Poly

The effect of plant diversity on aboveground organisms and processes was largely studied but there is still a lack of knowledge regarding the link between plant diversity and soil characteristics. Here, we analyzed the effect of plant identity and diversity on the diversity of extractible soil organic compounds (ESOC) using 87 experimental grassland plots with different levels of plant diversit...

2007
M. Kozłowska E. Brzezińska M. Stobiecki

Responses of American arborvitae (Thuja occidentalis), common yew (Taxus x media) and juniper (Juniperus communis) to enhanced UV-B irradiance were studied. Control plants were grown without UV treatment, but at identical PhaR and temperature regimes. Visual symptoms of the ultraviolet effect noted on Thuja shoots as brown/red discolouration were correlated with the accumulation of phenolic com...

Journal: :Journal of agricultural and food chemistry 2005
Patrícia Valentão Paula B Andrade Joana Rangel Bárbara Ribeiro Branca M Silva Paula Baptista Rosa M Seabra

To check the influence of the conservation procedure in the chemical composition of chanterelle mushroom, phenolic compounds and organic acids of samples preserved under four different conditions (drying, freezing, conservation in olive oil and in vinegar) were determined. Phenolics and organic acids were analyzed by HPLC-DAD and HPLC-UV, respectively. The results showed that chanterelle is cha...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2001
T Kujala J Loponen K Pihlaja

The extraction of red beetroot (Beta vulgaris) peel betalains and phenolics was compared with two extraction methods and solvents. The content of total phenolics in the extracts was determined according to a modification of the Folin-Ciocalteu method and expressed as gallic acid equivalents (GAE). The profiles of extracts were analysed by high-performance liquid chromatography (HPLC). The compo...

2009
Jerneja JAKOPIČ Robert VEBERIČ Franci ŠTAMPAR

The extractive efficiency of phenolic compounds from plant material is greatly depended on the solvent. In our research, methanol and ethanol were used for taking out the phenols from green walnut fruits. The total phenolics and some individual phenolics, such as gallic, chlorogenic, ellagic, sinapic and protocatechuic acid, (+)-catechin and juglone were detected. Total phenolic contents were d...

2010
A. M. Nagle B. A. Mcpherson D. L. Wood M. Garbelotto P. Bonello

Sudden oak death, caused by Phytophthora ramorum, has resulted in high levels of coast live oak (CLO) mortality. However, some CLO survive in areas with high disease pressure and may thus be resistant. We tested the hypothesis that such field-resistant trees contain constitutively higher levels of phenolics than susceptible trees. Phloem was sampled from the trunks of two groups of trees (one p...

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