Results 181 to 190 of about 11,055,071 (342)

When Two Dimensions Matter: A Critical Review of Recent Comprehensive Two‐Dimensional Gas Chromatography Applications in Food Analysis

open access: yesChemFoodChem, EarlyView.
Comprehensive two‐dimensional gas chromatography (GC×GC) is gaining importance in food analysis, particularly for volatile and aroma‐related compounds. This review examines recent applications across plant‐, animal‐, and other food matrices, revealing trends in sample preparation, column selection, modulation and detection, while highlighting ...
Ana Jano   +3 more
wiley   +1 more source

Sequential Pressurized Liquid Extraction of Food Matrices: Fractionation, Selectivity, and Scale‐Up

open access: yesChemFoodChem, EarlyView.
Sequential pressurized liquid extraction separates food‐processing side streams into chemically distinct fractions by changing solvent polarity and operating conditions across stages. Lipophilic and phenolic compounds are recovered selectively, while co‐extraction is reduced.
Derya Ozalp Unal
wiley   +1 more source

Total Flavonoid Content in Gedi (Abelmoschus manihot L.) Leaf Fraction by Using UV-Vis Spectrophotometry

open access: yes
Gedi (Abelmoschus manihot L.) leaves are widely used in traditional medicine because they contain secondary metabolites, particularly flavonoids, which exhibit antioxidant and anti-inflammatory activities.
Wiwit Zuriati Uno   +4 more
core   +1 more source

Natural Anthraquinone‐Like Compound Extracted from Green Husk of Walnut Improves Photocatalytic H2O2 Production Catalyzed by TiO2 Nanoparticles

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a novel biomolecule/semiconductor hybrid catalyst was prepared by loading anthraquinone‐liked juglone onto anatase TiO2. This catalyst exhibited high photocatalytic activity for H2O2 production. Hydrogen peroxide (H2O2) is a vital oxidant with broad industrial applications, and its production via photocatalysis represents a highly ...
Zengyin He   +4 more
wiley   +1 more source

Synthesis of Flavones by Intramolecular O‐Arylation of Unactivated Halogenated Aryl‐1,3‐diketones

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A protocol for the synthesis of flavone derivatives starting from mono‐ and dihalogenated diketones including fluorinated derivatives in a very simple and effective way is reported. Flavones are an important class of secondary metabolites in plants. Here we report a straightforward method for the conversion of unactivated halogenated 1,3‐biaryl‐1,3 ...
Lena Deutsch   +8 more
wiley   +1 more source

Donkwa Enriched With Goron‐Tula (Azanza garckeana) Modulates Sexual Behavior and Activity of Enzymes Linked With Erectile Dysfunction in High‐Fat Diets/ Streptozotocin‐Induced (STZ/HFD) Diabetic Rats

open access: yesFood Chemistry International, EarlyView.
(A) Mount number, (B) mount latency, (C) intromission number, and (D) intromission latency are the parameters of sexual behavior. Met = metformin. D100 = 100 Donkwa. D90G10 = 90% Donkwa + 10% Goron‐Tula. D85G15 = 85% Donkwa + 15% Goron‐Tula. D80G20 = 80% Donkwa + 20% Goron‐Tula. The mean ± standard error of the mean (SEM) expressed the results. *Values
O. T. Mamukuyomi   +2 more
wiley   +1 more source

Optimising the Eco‐Friendly Extraction of Carotenoids From Gac Fruit: A Sustainable Solution for Natural Red Food Colourants

open access: yesFood Chemistry International, EarlyView.
Gac fruit's high carotenoid content, especially in the aril, makes it an excellent natural red pigment source for food applications, offering a safer alternative to synthetic dyes. Ethanol extraction achieved the highest overall pigment recovery (89.53%), whereas ethyl lactate extraction yielded the highest levels of total carotenoids, β‐carotene ...
N. Netravati   +4 more
wiley   +1 more source

Total phenolic content, flavonoid content, anthocyanin content, and antioxidant activity of naturally fermented Garcinia mangostana pericarp broth [PDF]

open access: yes, 2017
The objectives of this research are to extract phenolic compound from spontaneously fermented Garcinia mangostana pericarp broth, to analyse the phenolic content and to quantify the antioxidant activity of spontaneously fermented Garcinia mangostana ...
Mohd Sa’id, Syafi’ah Nadiah
core  

“Nature's Polymer Reimagined: Conventional and Green Routes to Pectin, Its Bioactive Promise and Industrial Applications”

open access: yesFood Chemistry International, EarlyView.
Pectin, a versatile natural polymer, is extracted through conventional and emerging green extraction methods, offering multifunctional bioactive properties useful in food, pharmaceutical, and environmental applications. ABSTRACT Pectin, a molecular tapestry woven from diverse polysaccharides, holds a pivotal role across food, pharmaceutical, and ...
Afra Anika Rafique   +3 more
wiley   +1 more source

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