Spermatozoid life-span of two brown seaweeds, Saccharina japonica and Undaria pinnatifida, as measured by fertilization efficiency

2013 ◽  
Vol 31 (4) ◽  
pp. 774-781 ◽  
Author(s):  
Jing Li ◽  
Shaojun Pang ◽  
Feng Liu ◽  
Tifeng Shan ◽  
Suqin Gao
Keyword(s):  
Life Span ◽  
Undaria Pinnatifida ◽  
Saccharina Japonica ◽  
Brown Seaweeds

scholarly journals Fucoidan Extracted from Undaria pinnatifida: Source for Nutraceuticals/Functional Foods

Marine Drugs ◽  
2018 ◽  
Vol 16 (9) ◽  
pp. 321 ◽  
Author(s):  
Yu Zhao ◽  
Yizhou Zheng ◽  
Jie Wang ◽  
Shuyi Ma ◽  
Yiming Yu ◽  
...  
Keyword(s):  
Biological Activity ◽  
Functional Foods ◽  
Undaria Pinnatifida ◽  
Biological Effects ◽  
Activity Relationship ◽  
Future Research ◽  
Brown Seaweeds ◽  
Anticancer Effects ◽  
Structure Activity ◽  
Health Products

The importance of fucoidan as a functional ingredient in food, health products, and pharmaceutics is well-recognized due to its beneficial biological effects. Fucoidan is usually extracted from brown seaweeds, including Undaria pinnatifida. Fucoidan exhibits beneficial bio-activity and has antioxidant, anticancer, and anticoagulant properties. This review focuses on the biological activity of U. pinnatifida-derived fucoidan and investigates its structure–activity or fraction–activity relationship. It also describes several fucoidan extracts, along with their claimed anticancer effects. It aims to provide information and thoughts for future research such as the development of fucoidan into functional foods or nutraceuticals.

Air-drying and rehydration characteristics of the brown seaweeds, Ascophylum nodosum and Undaria pinnatifida

2017 ◽  
Vol 30 (2) ◽  
pp. 1259-1270 ◽  
Author(s):  
Francisco Chenlo ◽  
Santiago Arufe ◽  
Diego Díaz ◽  
María D. Torres ◽  
Jorge Sineiro ◽  
...  
Keyword(s):  
Undaria Pinnatifida ◽  
Air Drying ◽  
Brown Seaweeds

scholarly journals Breeding in the Economically Important Brown Alga Undaria pinnatifida: A Concise Review and Future Prospects

2021 ◽  
Vol 12 ◽  
Author(s):  
Tifeng Shan ◽  
Shaojun Pang
Keyword(s):  
Life History ◽  
Brown Alga ◽  
Undaria Pinnatifida ◽  
Raw Materials ◽  
Saccharina Japonica ◽  
History Plays ◽  
Seaweed Farming ◽  
History Of ◽  
Genomics Tools ◽  
Farming Industry

Undaria pinnatifida is the commercially second most important brown alga in the world. Its global annual yield has been more than two million tonnes since 2012. It is extensively cultivated in East Asia, mainly consumed as food but also used as feed for aquacultural animals and raw materials for extraction of chemicals applicable in pharmaceutics and cosmetics. Cultivar breeding, which is conducted on the basis of characteristics of the life history, plays a pivotal role in seaweed farming industry. The common basic life history shared by kelps determines that their cultivar breeding strategies are similar. Cultivar breeding and cultivation methods of U. pinnatifida have usually been learned or directly transferred from those of Saccharina japonica. However, recent studies have revealed certain peculiarity in the life history of U. pinnatifida. In this article, we review the studies relevant to cultivar breeding in this alga, including the peculiar component of the life history, and the genetics, transcriptomics and genomics tools available, as well as the main cultivar breeding methods. Then we discuss the prospects of cultivar breeding based on our understanding of this kelp and what we can learn from the model brown alga and land crops.

Effect of water velocity on Undaria pinnatifida and Saccharina japonica growth in a novel tank system designed for macroalgae cultivation

2016 ◽  
Vol 29 (3) ◽  
pp. 1429-1436 ◽  
Author(s):  
Yoichi Sato ◽  
Masaki Yamaguchi ◽  
Tomonari Hirano ◽  
Nobuhisa Fukunishi ◽  
Tomoko Abe ◽  
...  
Keyword(s):  
Undaria Pinnatifida ◽  
Saccharina Japonica ◽  
Water Velocity ◽  
Effect Of Water ◽  
Tank System

Differential Neuritogenic Activities of Two Edible Brown Macroalgae, Undaria pinnatifida and Saccharina japonica

2014 ◽  
Vol 42 (06) ◽  
pp. 1371-1384 ◽  
Author(s):  
Md. Abdul Hannan ◽  
Md. Mohibbullah ◽  
Seon-Yeong Hwang ◽  
Kyungyong Lee ◽  
Yang-Chun Kim ◽  
...  
Keyword(s):  
Hippocampal Neurons ◽  
Undaria Pinnatifida ◽  
Saccharina Japonica ◽  
Dependent Manner ◽  
Brown Macroalgae ◽  
Neuroprotective Effects ◽  
Beneficial Effects ◽  
Ethanol Extracts ◽  
Dose Dependent

Undaria pinnatifida (Harvey) Suringar and Saccharina japonica Areschoug are two common seaweeds, and both are known to have numerous pharmacological properties that include neuroprotective effects. In a previous study, we found that the ethanol extracts of U. pinnatifida (UPE) and S. japonica (SJE) had neurite promoting activities on developing hippocampal neurons. In the present study, we studied and compared the effects of UPE and SJE on neuronal maturation. Both UPE and SJE promoted neurite outgrowth in a dose-dependent manner with optimal concentrations of 5 and 15 μg/mL, respectively. Initial neuronal differentiation was significantly promoted by UPE and SJE. Subsequently, treatment with both increased indices of axonal and dendritic cytoarchitecture, such as, the numbers and lengths of primary processes, although only UPE had a significant effect on branching frequencies. In addition, UPE and SJE showed no evidence of cytotoxicity, rather they protected neurons from naturally occurring death in vitro. These results indicate that UPE and SJE promote axodendritic maturation and neuronal survival and suggest that these algal extracts, especially UPE, have beneficial effects on the nervous system.

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