- Editorial
3 Citations
2,185 Views
4 Pages
Molecularly Imprinted Polymers: Selective Extraction Materials for Sample Preparation
- Antonio Martín-Esteban
Highly developed analytical instrumentation (i [...]
- 2.7Impact Factor
- 4.5CiteScore
- 17 daysTime to First Decision
Separations, Volume 9, Issue 5
May 2022 - 31 articles
Cover Story: The cover picture shows twigs along with flowers of peach (Prunus persica) tree and some flavonoids determined as tyrosinase inhibitors contained in the twig extract obtained from the plant. In this study, twig extract showed potent tyrosinase inhibitory activity compared to the extract of leaves, pericarps, seeds, immature fruits, and mature fruits. Investigation of active compounds of the inhibitory activity led us to identify flavonoids and their glucosides, (-)-prunin, persiconin, (+)-dihydrokaempferol, and (-)-naringenin. These compounds were identified from twig extract for the first time. In addition, isoquercitrin was also identified. The preliminary quantification showed that active compounds were only found in twig extract in detectable levels. These results suggest that twig extract obtained from P. persica can be a suitable material for skin-whitening purposes. View this paper
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Articles (31)
- Article
4 Citations
3,981 Views
12 Pages
Simultaneous Determination of Fenchone and Trans-Anethole in Essential Oils and Methanolic Extracts of Foeniculum vulgare Mill. Fruits Obtained from Different Geographical Regions Using GC-MS Approach
- Wasim Ahmad,
- Mohd Amir,
- Syed Rizwan Ahamad,
- Prawez Alam,
- Sultan Alshehri,
- Mohammed M. Ghoneim,
- Shadma Wahab and
- Faiyaz Shakeel
The gas chromatography–mass spectrometry (GC-MS) approach is established for the simultaneous determination of fenchone (FCO) and trans-anethole (TOH) in the essential oils and methanolic extracts of fennel (Foeniculum vulgare Mill.) fruits obt...
- Article
8 Citations
4,938 Views
13 Pages
Assessing the Condition of Complex Poly-Material Artworks by Py-GC-MS: The Study of Cellulose Acetate-Based Animation Cels
- Francesca Caterina Izzo,
- Henk Van Keulen and
- Alessandra Carrieri
The material composition of a group of Rodovetri, hand-painted animation cels, made in the 1950s and 1960s for Italian television, has been determined by Flash Py-GC-MS, Thermally assisted Hydrolysis and Methylation-(Py-)GC-MS and GC-MS investigation...
- Article
5 Citations
3,181 Views
13 Pages
Investigation of Molecular Mean Free Path, Molecular Kinetic Energy, and Molecular Polarity Affecting Knudsen Diffusivity along Pore Channels
- Bin Xu,
- Haotian Qin and
- Lu Chen
The effective purification of corrosive gases at the cathode air stream side is essential for proton exchange membrane fuel cells’ performance in real-world applications. Gas molecular diffusion depth along the pore channel is a sufficient para...
- Article
6 Citations
6,830 Views
11 Pages
A Novel Centrifugal Filtration Device
- Chia-Cheng Lin and
- Jung-Ming Wu
In the proposed centrifugal filtration device, a filter is mounted in the center of the centrifugal chamber. The particles move towards the centrifuge wall away from the filter under centrifugal force, so a filtration cake is unlikely to accumulate h...
- Article
6 Citations
2,888 Views
15 Pages
Anti-Osteoporotic Effect of Viscozyme-Assisted Polysaccharide Extracts from Portulaca oleracea L. on H2O2-Treated MC3T3-E1 Cells and Zebrafish
- Yunhua Fu,
- Xuan Hu,
- Dongyue Zhou,
- Xue Li,
- Xingyu Tao,
- Di Yang,
- Fei Zheng,
- Yulin Dai and
- Hao Yue
This study aims to screen and characterize the protective effect of polysaccharides from Portulaca oleracea L. (POP) against H2O2-stimulated osteoblast apoptosis in vivo and in vitro. The enzymes viscozyme, celluclast, α-amylase, and β-glu...
- Article
5 Citations
3,095 Views
12 Pages
Antiallergic Properties of Biflavonoids Isolated from the Flowers of Mesua ferrea Linn.
- Yoshiaki Manse,
- Yusuke Sakamoto,
- Taiki Miyachi,
- Mitsuyo Nire,
- Yoshinori Hashimoto,
- Saowanee Chaipech,
- Yutana Pongpiriyadacha and
- Toshio Morikawa
The methanolic extract from the flowers of Mesua ferrea Linn. (Calophyllaceae) showed significant hyaluronidase inhibitory activity. Following a bioassay-guided separation of the extract, two biflavonoids, viz., mesuaferrone-A (1) and mesuaferrone-B...
- Article
2,749 Views
12 Pages
Exploration of Fulvic Acid as a Co-Former in Crystal Engineering
- Kattamanchi Gnananath,
- Kolli Prabhanjan Kumar,
- Yejella Rajendra Prasad,
- Kalakonda Sri Nataraj,
- Mohamad Taleuzzaman,
- Mohammad Javed Ansari and
- Mohd. Aamir Mirza
The aim of the project was to investigate Peat-derived Fulvic acid for its propensity to form co-crystals with quercetin and curcumin and characterize it by using different analytical techniques. The formation of co-crystals generally enhances water...
- Communication
4 Citations
3,259 Views
9 Pages
Benefits of a Mixed-Mode Stationary Phase to Address the Challenging Purification of an Industrially Relevant Peptide: A Proof-of-Concept Study
- Giulio Lievore,
- Desiree Bozza,
- Martina Catani,
- Alberto Cavazzini,
- Tatiana Chenet,
- Luisa Pasti,
- Lucia Ferrazzano,
- Walter Cabri,
- Marco Macis and
- Antonio Ricci
- + 2 authors
Peptides are a class of biomolecules with a great potential from the therapeutic point of view, because of their unique biological properties. Industrially, the production stategies adopted produce both the target peptide and a series of impurities t...
- Article
5 Citations
5,135 Views
10 Pages
Influence and Mechanism of Polar Solvents on the Retention Time of Short-Chain Fatty Acids in Gas Chromatography
- Mu Ren,
- Narantsogt Natsagdorj and
- Na Shun
Short-chain fatty acids (SCFAs), produced by microbes when dietary fiber ferments in the colon, are one of the most studied microbial products despite their volatility and complex matrices, which make analysis challenging. In the current study, we so...
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Separations - ISSN 2297-8739