Results 11 to 20 of about 1,247 (166)

Ulvan-Na, an Ulvan Subjected to Na⁺ Cation Exchange, Improves Intestinal Barrier Function in Age-Related Leaky Gut [PDF]

Marine Drugs
The global increase in life expectancy underscores the need to promote healthy aging, particularly by addressing age-related leaky gut syndrome, which contributes to systemic inflammation and chronic disease.
Yuka Maejima, Yuki Morioka, Yusei Sato, Masanori Hiraoka, Ayumu Onda, Takushi Namba   +5 more
doaj   +4 more sources

Structural and functional insights into Uly1040, an ulvan lyase from polysaccharide lyase family 40 [PDF]

Applied and Environmental Microbiology
Ulvan is a major polysaccharide in marine green algae. Its oligosaccharide degradation products possess diverse bioactivities and hold considerable potential for various applications.
Hou-Qi Wang, Chuan-Lei Suo, Dan Liu, Meng-Qi Wang, Jian-Xun Li, Hai-Yan Cao, Qi-Long Qin, Yu-Zhong Zhang, Peng Wang, Fei Xu   +9 more
doaj   +2 more sources

Biocatalytic ulvan degradation by Pseudoalteromonas marina: exploring a marine polysaccharide bioconversion system [PDF]

Microbial Cell Factories
Ulvan depolymerization by marine bacteria is a specialized metabolic capability with significant implications for marine carbon cycling and biotechnological applications. While ulvan degradation systems have been extensively characterized in Bacteroidota,
Navindu Dinara Gajanayaka, Eunyoung Jo, Minthari Sakethanika Bandara, Yeon-Ju Lee, Jaewon Lee, Svini Dileepa Marasinghe, Jonathan Sathyadith, Tae-Yang Eom, Gun-Hoo Park, Chulhong Oh, Youngdeuk Lee   +10 more
doaj   +2 more sources

Characterisation of a phylogenetically distinct PL25 family ulvan lyase from a seaweed biomass enriched metagenome [PDF]

The FEBS Journal, Volume 293, Issue 10, Page 2885-2907, May 2026.
Ulvan is a polysaccharide available from green seaweed with beneficial properties for various applications. The full potential of ulvan requires enzymatic degradation of the polymer, thus producing ulvan oligosaccharides. This study expands the armoury of characterised ulvan lyases.
Andrius Jasilionis, Pavithra Sivakumar, Justyna M. Dobruchowska, Sune Fjermedal, Hörður Guðmundsson, Bjorn Thor Adalsteinsson, Guðmundur Ó. Hreggviðsson, Anne S. Meyer, Eva Nordberg Karlsson   +8 more
wiley   +2 more sources

Nisin-Loaded Ulvan Particles: Preparation and Characterization [PDF]

Foods, 2021
Nisin is an attractive alternative to chemical preservatives in the food industry. It is a cationic peptide of 34 amino acid residues that exhibits antimicrobial activity against Gram-positive bacteria.
Ruta Gruskiene, Tatjana Kavleiskaja, Ramune Staneviciene, Stefanos Kikionis, Efstathia Ioannou, Elena Serviene, Vassilios Roussis, Jolanta Sereikaite   +7 more
doaj   +4 more sources

Characterisation of High Alkaline-Tolerant Novel Ulvan Lyase from Pseudoalteromonas agarivorans: Potential Applications of Enzyme Derived Oligo-Ulvan as Anti-Diabetic Agent [PDF]

Marine Drugs
Green algae, particularly Ulva species, are rich in complex polysaccharides, such as ulvan, which have significant potential for biotechnological applications. However, the biochemical properties of ulvan depolymerised products remain underexplored.
Navindu Dinara Gajanayaka, Eunyoung Jo, Minthari Sakethanika Bandara, Svini Dileepa Marasinghe, Chinmayee Bawkar, Yeon-Ju Lee, Gun-Hoo Park, Chulhong Oh, Youngdeuk Lee   +8 more
doaj   +2 more sources

Comparative Study of Sulfated Polysaccharides From Ulva Lactuca Grown in Tunisia and Morocco: in Vitro Antioxidant Activity and in Vivo Anti‐Inflammatory and Anti‐Ulcer Effects [PDF]

Chemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT This study presents a comparative analysis of sulfated polysaccharides extracted from Ulva lactuca collected in Tunisia (PSUT) and Morocco (PSUM). FTIR confirmed the presence of sulfate groups, while GC‐MS identified diverse sugar components. Both polysaccharides showed strong antioxidant activity, with DPPH and ABTS radical scavenging rates ...
Nourhene Kharrat, Yasmine Touhamia, Rihab Ben Abdallah kolsi, Khaled Hamden, Rafik Ben Said, Touria Ould Bel Lahcen, Hichem Ben Salah, Noureddine Allouche   +7 more
wiley   +2 more sources

Ulvan Polysaccharide of Ulva lactuca From Coastal Indonesia: Functional Prebiotic Properties via Enzymatic and Nonenzymatic Extraction [PDF]

International Journal of Food Science
Indonesia's rich macroalgal biodiversity offers valuable resources for functional food development, particularly ulvan, a sulfated polysaccharide derived from Ulva lactuca.
Yuliana Tandi Rubak, Herianus J. D. Lalel, Budiana I. Gusti M. Ngurah, Welem Linggi Turupadang, Fenny Amilia Mahara, Dandy Yusuf   +5 more
doaj   +2 more sources

Formulation and evaluation of ulvan-functionalized cumin oil nanoemulsions for antioxidant, anti-photoaging, and anti-melanogenesis activities in skin cells [PDF]

Bioresources and Bioprocessing
Growing interest in natural skincare solutions has spotlighted bioactive substances like ulvan and cumin essential oil, valued for their roles in combating oxidative stress and inflammation.
Fang-Ling Liu, Shih-Yuan Fang, Hsiang-Wen Chan, Ming-Chih Fang, Meng-Tsan Chiang, Chung-Hsiung Huang   +5 more
doaj   +2 more sources

Ulva Seaweed-Derived Ulvan: A Promising Marine Polysaccharide as a Sustainable Resource for Biomaterial Design [PDF]

Marine Drugs
Green seaweed is currently underused compared with other major seaweed types. Many scientists have reported applications of the green seaweed Ulva in various fields in recent years, which makes it a candidate for biomass production in industrial ...
Rizfi Fariz Pari, Uju Uju, Safrina Dyah Hardiningtyas, Wahyu Ramadhan, Rie Wakabayashi, Masahiro Goto, Noriho Kamiya   +6 more
doaj   +2 more sources