Results 151 to 160 of about 2,265 (182)

Prebiotic potential of enzymatically produced ulvan oligosaccharides using ulvan lyase of Bacillus subtilis, NIOA181, a macroalgae-associated bacteria

Journal of Applied Microbiology, 2022
Abstract Aims To characterize the polysaccharide hydrolyzing potential of macroalgae-associated bacteria (MABs) for the enzymatic production of oligosaccharides and determining their prebiotic potential.
Cathrine Sumathi Manohar, Nitin S Kadam, Ashok Jagtap   +2 more
exaly   +3 more sources

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Are all ulvans equal? A comparative assessment of the chemical and gelling properties of ulvan from blade and filamentous Ulva

Carbohydrate Polymers, 2021
Green seaweeds of the genus Ulva are rich in the bioactive sulfated polysaccharide ulvan. Herein we characterise ulvan from Ulva species collected from the Bay of Plenty, Aotearoa New Zealand. Using standardised procedures, we quantified, characterised, and compared ulvans from blade (U. australis, U. rigida, U. sp. B, and Ulva sp.) and filamentous (U.
Joel T. Kidgell, Susan M. Carnachan, Marie Magnusson, Rebecca J. Lawton, Ian M. Sims, Simon F.R. Hinkley, Rocky de Nys, Christopher R.K. Glasson   +7 more
openaire   +3 more sources

Ulvan lyase assisted structural characterization of ulvan from Ulva pertusa and its antiviral activity against vesicular stomatitis virus

International Journal of Biological Macromolecules, 2020
Marine green algae are valuable sources of diverse health-promoting bioactive components. Ulvan is suitable for biological applications due to its unique structure and numerous bioactivities. Here, the complex structure of ulvan from Ulva pertusa was analyzed using specific ulvan lyase degradation, MS, and NMR detection.
Yongzhou Chi, Peng Wang, Xianjun Fu
exaly   +3 more sources

Nutraceutical potentials of algal ulvan for healthy aging

International Journal of Biological Macromolecules, 2022
Several theories for aging are constantly put forth to explain the underlying mechanisms. Oxidative stress, DNA dysfunction, inflammation, and mitochondrial dysfunction, along with the release of cytochrome c are some of these theories. Diseases such as type 2 diabetes mellitus, intestinal dysfunction, cardiovascular diseases, hepatic injury, and even ...
Dan, Liu, Yuezhen, Ouyang, Ruoxin, Chen, Mingfu, Wang, Chao, Ai, Hesham R, El-Seedi, Md Moklesur Rahman, Sarker, Xinhua, Chen, Chao, Zhao   +8 more
openaire   +2 more sources

Creation of the Ulvan Lyase Enzyme Complex for the Production of Ulvan-Derived Oligosaccharides

Journal of Agricultural and Food Chemistry
Ulvan, a primary constituent of green algae biomass, has the potential to be used for various biomedical and biotechnology applications. Its biological activity is significantly influenced by its molecular weight. However, the high molecular weight of ulvan poses challenges due to its high viscosity and poor solubility, necessitating an efficient ...
Jihyun Lee, Jeongeun Hyeon, Sung Ok Han   +2 more
exaly   +3 more sources

A Conformational Study on the Algal Polysaccharide Ulvan

Macromolecules, 2002
The conformational behavior of the algal polysaccharide ulvan in aqueous solution has been studied. This biopolymer, containing limited regular regions of aldobiuronic sequences made of β-d-glcpA(1→4)-α-l-rhap 3-sulfate and of α-l-idopA(1→4)-α-l-rhap 3-sulfate, can be considered as a low-cost source of rare sugars with a potential impact on several ...
PARADOSSI, GAIO, Cavalieri, F, CHIESSI, ESTER   +2 more
openaire   +3 more sources

Structure and cytotoxic activity of ulvan extracted from green seaweed Ulva lactuca

International Journal of Biological Macromolecules, 2016
The structure of an ulvan obtained by water extraction from green seaweed Ulva lactuca was elucidated by using IR, NMR, SEC-MALL and ESIMS methods. The ulvan was also evaluated for its cytotoxic effects on three human cancer cell lines.
Nu Nguyen Thi
exaly   +2 more sources

Multifaceted applications of ulvan polysaccharides: Insights on biopharmaceutical avenues

International Journal of Biological Macromolecules, 2023
Ulvans are water-soluble sulfated polysaccharides predominantly found in the cell wall of green algae. They hold unique characteristics that are attributed to their 3D conformation, functional groups along with the presence of saccharides and sulfate ions.
Saurabh, Shah, Paras, Famta, Syed, Shahrukh, Naitik, Jain, Ganesh, Vambhurkar, Dadi A, Srinivasarao, Rajeev Singh, Raghuvanshi, Shashi Bala, Singh, Saurabh, Srivastava   +8 more
openaire   +2 more sources

Ulvan polysaccharide-degrading enzymes: An updated and comprehensive review of sources category, property, structure, and applications of ulvan lyases

Algal Research, 2021
Abstract Ulvan, extracted from the marine green algae belonging to the genus Ulva, is mainly composed of four monosaccharides consisting of rhamnose, xylose, glucuronic acid and iduronic acid. It has great potential in the fields of food, pharmaceuticals and chemistry.
Tiancheng Tang, Shengsheng Cao, Benwei Zhu, Qian Li   +3 more
openaire   +1 more source

Antioxidant activity of purified ulvan in hyperlipidemic mice

International Journal of Biological Macromolecules, 2018
Several studies have reported that ulvan from the alga Ulva pertusa (Chlorophyta) exhibits substantial antioxidant and antihyperlipidemic activities; however, which group of heteropolysaccharides play roles in these activities remains unknown. In this study, three purified ulvan (PU1, PU2 and PU3) have been obtained by DEAE-Sepharose fast-flow column ...
Weida, Li, Nanfang, Jiang, Bingxi, Li, Minghui, Wan, Xintao, Chang, Hui, Liu, Li, Zhang, Shupeng, Yin, Huimin, Qi, Shunmei, Liu   +9 more
openaire   +2 more sources