Results 71 to 80 of about 7,067 (170)

Chemical Aspects Influencing Crack Formation in Black‐and‐White Oil‐Based Paints: Study of Five Spanish Abstract Informalist Paintings by Antonio Saura (1930–1998)

open access: yesChemistry–Methods, Volume 6, Issue 1, January 2026.
This study explores the chemical and physical mechanisms behind the distinct cracking patterns observed in the black‐painted areas of five works by Antonio Saura. Multiband imaging and portable digital microscopy were employed to document the morphology and distribution of crack patterns.
Margherita Gnemmi   +7 more
wiley   +1 more source

Characterisation of the Volatile Compounds and Key Odourants in Japanese Mandarins by Gas Chromatography–Mass Spectrometry and Gas Chromatography–Olfactometry

open access: yesSeparations
Japanese mandarins are becoming increasingly popular due to their pleasant aroma. The volatiles in four varieties of Japanese mandarins (Iyokan, Ponkan, Shiranui, and Unshiu mikan) were extracted by headspace solid-phase microextraction (HS-SPME) and ...
Lingyi Li   +9 more
doaj   +1 more source

Solvent‐Mediated Control of Ethanolysis Pathways: Dimethyl Carbonate–Assisted Conversion of Oil Palm Empty Fruit Bunches to Ethyl Levulinate

open access: yesInternational Journal of Chemical Engineering, Volume 2026, Issue 1, 2026.
This study investigates dimethyl carbonate (DMC) as a polar aprotic cosolvent in the direct ethanolysis of oil palm empty fruit bunches (OPEFB) to produce ethyl levulinate. Among several tested cosolvents, DMC significantly improved selectivity and suppressed humin formation, thereby increasing ethyl levulinate yield from 18.69% to 24.49% under ...
Heriyanti Heriyanti   +8 more
wiley   +1 more source

Mannoprotein Content and Volatile Molecule Profiles of Trebbiano Wines Obtained by Saccharomyces cerevisiae and Saccharomyces bayanus Strains

open access: yesFermentation, 2019
The production of volatile compounds has become one of the major technological features for yeast selection. In fact, although the aromatic profile of the wine is the sum of varietal-, pre-, post-, and fermentative-aroma compound, yeasts affect the ...
Giacomo Braschi   +5 more
doaj   +1 more source

Saparation and identification of bioactive compounds from the seeds of Iraqi physalis angulata L. using chromatographic techniques

open access: yesمجلة التربية والعلم
This study aimed to investigate the phytochemical composition of Physalis angulata L collected from the Rabia region, west of Mosul, Nineveh Governorate/ Iraq. The active compounds of selected P.
Fatima Basil Yousif   +1 more
doaj   +1 more source

The microbial community and flavour substances of off-flavoured rice sour soup during storage

open access: yesFood Science and Human Wellness
Fermented sour soup is a unique traditional sour food of the Miao and Dong ethnic groups in China. However, due to the commonly used traditional fermentation, the unstable fluctuation of microbial community often leads to some unpleasant inherent off ...
Xiuli Li   +5 more
doaj   +1 more source

Bioassay-Guided Phytochemical Analyses and Antimicrobial Potentials of the Leaf Extract of Clematis hirsuta Perr. and Guill. Against Some Pathogenic Bacteria and Fungi

open access: yesInfection and Drug Resistance, 2022
Gemechu Ameya,1,2 Aseer Manilal,3 Kuzhunellil Raghavanpillai Sabu,4 Solomon Aragie2 1Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Kotebe Metropolitan University, Addis Ababa, Ethiopia; 2Department of Cellular ...
Ameya G, Manilal A, Sabu KR, Aragie S
doaj  

Impact of including two types of destoned olive cakes in pigs’ diets on fecal bacterial composition and study of the relationship between fecal microbiota, feed efficiency, gut fermentation, and gaseous emissions

open access: yesFrontiers in Microbiology
The microbial population in the pig’s gastrointestinal tract can be influenced by incorporating fibrous by-products into the diets. This study investigated the impact of including two types of dried olive cake (OC) in pigs’ diets on fecal bacterial ...
Dhekra Belloumi   +12 more
doaj   +1 more source

Morphological and Chemical Changes in the Hemolymph of the Wax Moth Galleria mellonella Infected by the Entomopathogenic Fungus Conidiobolus coronatus

open access: yesPathogens
Hemolymph enables communication between organs in insects and ensures necessary coordination and homeostasis. Its composition can provide important information about the physiological state of an insect and can have diagnostic significance, which might ...
Mieczysława Irena Boguś   +6 more
doaj   +1 more source

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