Article
Environmental Sciences
Jan Sunde, Gyda Christophersen
Summary: The deposit feeding sea cucumber Parastichopus tremulus is an underutilised resource in North Atlantic waters. The performance of P. tremulus in aquaculture is largely unknown, and there are knowledge gaps that need to be filled for potential industry development. Particulate matter from fish farms could be used as an ingredient in feeds for sea cucumbers to reduce environmental impact.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Declan Dawson Taylor, Jonathan J. Farr, Em G. Lim, Jenna L. Fleet, Sara J. Smith Wuitchik, Daniel M. Wuitchik
Summary: Oceanic heatwaves can impact disease dynamics in marine ecosystems. Researchers investigated if heat stress alone could trigger wasting symptoms in sea cucumbers. However, the study found that none of the heat treatments induced wasting symptoms as observed in a mass mortality event, suggesting that the cause of the event remains unknown.
Article
Chemistry, Applied
Xue Song, Leilei Si, Xiao Sun, Xiao Zhu, Zhaoxuan Li, Yanyan Li, Yangfan Wang, Hu Hou
Summary: Sea cucumber collagen exhibits shear-thinning and pseudo-plastic properties during thermal processing, and its viscosity and viscoelastic crossover frequency decrease gradually with increasing temperature. The results suggest that the triple helix structure of sea cucumber collagen disappears with temperature rise, and shearing accelerates this change.
Article
Agriculture, Multidisciplinary
Honghua Cao, Yonghao Liu, Ling Zhi, Shutong Jing, Zhengshengao Li, Dongfeng Wang, Ying Xu, Xun Sun
Summary: This study investigated the inhibitory effect of pre-gelatinized dialdehyde starch (P-DAS) on the deterioration of sea cucumber during high-temperature sterilization. The results showed that pre-gelatinization reduced the crystallinity and average molecular weight of dialdehyde starch (DAS), improved solubility, and unified particle sizes. The crosslinking power of P-DAS was higher than that of DAS, as evidenced by various texture profiles and analytical results. These findings have important implications for the development of new protein food stabilizing agents.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Fisheries
Reid W. Steele, M. Aaron MacNeil, Sandie Hankewich
Summary: The giant red sea cucumber fishery in BC, Canada is considered sustainable by managers but not by many harvesters. Experimental fishing areas were established in 1997 to test different exploitation rates and determine sustainable harvest levels. Updated models suggest that the fishery is likely to persist for 175 years at the current harvest rate, though long-term projections may be inaccurate. Crash rate analysis is used to generate scientific advice for determining a maximum sustainable exploitation rate.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Senhao Jiang, Xinyu Tong, Yuhao Jiang, Linxin Wu, Li Li, Ruiting Ma, Jipeng Xue, Congbing Jiang
Summary: This study compared the body wall production rate, proximate composition, amino acid, fatty acid, trace element and vitamin composition, and immune enzyme activities of A. japonicus and P. californicus cultured in an artificial pond, revealing significant differences between the two species in their biochemical compositions and contents. Both sea cucumbers were found to have high nutritional value, with their own unique quality advantages.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Food Science & Technology
J. Mildenberger, M. Remm, M. Atanassova
Summary: Hydrogels based on marine natural biopolymers, such as peptide fractions from Parastichopus tremulus, have been characterized for their antioxidant activity and self-assembly capacity. The study identified potential peptide sequences with auto-assembly capacity, providing new materials for tissue engineering in regenerative medicine.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Fisheries
Ellen Schagerstrom, Gyda Christophersen, Jan Sunde, Snorre Bakke, Nedia R. Matusse, Sam Dupont, Kristina S. Sundell
Summary: The study aimed to develop a rearing protocol for the red sea cucumber to enable sustainable production. Results from spawning and larval rearing conducted in Norway and Sweden showed that temperature and food availability have significant effects on survival rate.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2022)
Article
Environmental Sciences
Anja M. Landes, Jan Sunde, Gyda Christophersen
Summary: Sea cucumbers are important in marine ecosystems globally. This study investigated the oxygen demand of the red sea cucumber Parastichopus tremulus in relation to storage period and temperature, and provided valuable insights for potential aquaculture. The results showed that long-term storage affected the oxygen consumption rate and condition index of the sea cucumbers, and different temperatures had different impacts on these factors.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Food Science & Technology
Lulu Zhu, Weixia Wang, Yuqian Meng, Qiaoji Tian, Li Hao, Hu Hou
Summary: The thermal processing of sea cucumber collagen (SCC) affects its triple helix structure, self-assembly, and aggregation ability. Heat treatment resulted in changes in viscosity and circular dichroism spectra, indicating structural changes in SCC. The uncoiling and disappearance of the triple helix structure of SCC were observed, along with increased fluorescence intensity and a red shift in absorption peak during thermal treatment. Crosslinking with gallic acid improved the thermal stability and inhibited collagen degradation. This study provides theoretical guidance for sea cucumber processing.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Lulu Zhu, Xiao Sun, Yan Fan, Yangfan Wang, Xin Qi, Hu Hou
Summary: In this study, the thermal stability of ready-to-eat sea cucumbers (RSC) was enhanced using gallic acid (GA) and chlomgenic acid (CA). The treatment led to an increase in hardness and a decrease in free water content of RSC. Collagen fibers showed increased aggregation and decreased porosity. The resulting improvement in thermal stability was evidenced by higher peak temperatures. This research provides a theoretical basis for prolonging the storage life of RSC.
Article
Environmental Sciences
Danilo Scannella, Gioacchino Bono, Manfredi Di Lorenzo, Federico Di Maio, Fabio Falsone, Vita Gancitano, Germana Garofalo, Michele Luca Geraci, Valentina Lauria, Maria Mancuso, Federico Quattrocchi, Giacomo Sardo, Antonino Titone, Sergio Vitale, Fabio Fiorentino, Daniela Massi
Summary: This study used generalized additive models to investigate the relationship between the abundance of Parastichopus regalis and environmental variables and fishing effort. The results showed that P. regalis prefers soft bottoms at depths of 50-200 meters and its distribution has changed over time. The study also found a positive relationship with surface water pH concentration and bottom nutrient concentration, indicating the species' sensitivity to climate change and food availability.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Chemistry, Medicinal
Junde Chen, Guangyu Wang, Yushuang Li
Summary: Marine collagen, specifically from lizardfish scales, was successfully isolated in this study, showing high biocompatibility and intact triple-helix structures. Both acid-soluble collagen and pepsin-soluble collagen exhibited high solubility in acidic pH ranges and were non-toxic to cells, with acid-soluble collagen demonstrating higher cell viability. These results suggest that lizardfish scales collagen could be a potential alternative to terrestrial collagen sources for biomedical applications.
Article
Polymer Science
Dingsong Wang, Jingjing Qin, Jiaming Liu, Mengqin Wu, Lifu Fu, Xiaohong Liu, Min Shi, Liyan Liang, Yonglu Dong
Summary: In this study, a novel addition-type liquid silicone rubber (LSR)/red mud (RM) composite was synthesized. The modified RM showed enhanced mechanical properties and thermal stability to LSR. The addition of modified RM significantly increased the tensile strength and Young's modulus of LSR, while retaining its mechanical properties after thermal aging.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Food Science & Technology
Xin Xiong, Wancui Xie, Jingwen Xie, Hang Qi, Xihong Yang, Hongyan Li, Hongxia Che, Lin Song, Xiufang Dong
Summary: By tenderizing Apostichopus japonicus body wall at 37 degrees Celsius, this study found changes in collagen fiber structure, protein oxidation, and degradation, laying the foundation for further research on the tenderization mechanism of sea cucumbers.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)